US Pat. No. 9,497,532

HEADPHONE DEVICE WITH CONTROLLING FUNCTION

PRIMAX ELECTRONICS LTD., ...

1. A headphone device with a controlling function, the headphone device being in communication with an audio generator to
receive a sound signal from the audio generator, the headphone device comprising:
a headphone body in contact with an ear of a user;
a speaker disposed within the headphone body, wherein after the sound signal from the audio generator is received, the sound
signal is outputted from the speaker; and

an optical finger navigation module installed on the headphone body and exposed to an operating surface of the headphone body,
wherein when an operation on the optical finger navigation module with a finger of the user is detected by the optical finger
navigation module, the optical finger navigation module generates a control signal, wherein the optical finger navigation
module comprises a light source emitting a light beam, an optical assembly reflecting the light beam to the finger and focusing
the light beam which is reflected by the finger, a sensing element receiving the focused light beam, and generating plural
image signals according to the focused light beam, and an upper cover sheltering the optical assembly, wherein the upper cover
has a transparent part, and the light beam is transmissible through the transparent part, wherein the upper cover is exposed
to the headphone body and a top surface of the upper cover is higher than the operating surface of the headphone body, wherein
the optical assembly comprises a reflective mirror located near the light source and when the light beam is reflected by the
reflective mirror, the light beam is projected to the transparent part of the upper cover, and a focusing lens located near
the sensing element, wherein after the light beam is reflected by the finger, the light beam is focused by the focusing lens.

US Pat. No. 9,300,488

AREA NETWORK SYSTEM AND NETWORK CONNECTION METHOD

PRIMAX ELECTRONICS LTD., ...

1. A network connection method for connecting a controlling device to at least one passive electronic device of an area network
group, one of the at least one passive electronic device executing a connection module of the area network group, the network
connection method comprising steps of:
(A) the connection module of the area network group receiving an internet communication address data from a network router
of the area network group and at least one internal network communication address data and at least one connecting port data
from the at least one passive electronic device;

(B) the connection module creating a communication address look-up table according to the internet communication address data,
the at least one internal network communication address data and the at least one connecting port data, and transmitting the
communication address look-up table to the network router; and

(C) transmitting a control command from the controlling device to the area network group according to the internet communication
address data and the at least one connecting port data, and transmitting the control command from the network router to the
at least one passive electronic device according to the internet communication address data, the at least one connecting port
data and the communication address look-up table.

US Pat. No. 9,146,701

GROUP PRINTING METHOD AND SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A group printing method, comprising steps of:
(A) allowing a control point to issue a first device search broadcast, and allowing an intermediary printing device to issue
a second device search broadcast;

(B) allowing the intermediary printing device to receive the first device search broadcast and issue a first response broadcast
to the control point, allowing each of plural digital media printers to receive the first device search broadcast and issue
a second response broadcast to the control point, and allowing each of the plural digital media printers to receive the second
device search broadcast and issue a third response broadcast to the intermediary printing device, wherein the plural digital
media printers provide printing functions in a Digital Living Network Alliance (DLNA) architecture;

(C) allowing the control point to acquire a first equipment and service description information from the intermediary printing
device according to the first response broadcast, allowing the control point to acquire a second equipment and service description
information from each of the plural digital media printers according to the second response broadcast, and allowing the intermediary
printing device to acquire the second equipment and service description information from each of the plural digital media
printers according to the third response broadcast;

(D) setting a printer group, wherein the printer group comprises at least two of the plural digital media printers;
(E) allowing the intermediary printing device to receive a print command from the control point and split the print command
into plural split print commands; and

(F) allowing the plural split print commands to be transmitted from the intermediary printing device to the digital media
printers of the printer group, so that the plural split print commands are executed by the digital media printers, respectively.

US Pat. No. 9,299,516

LUMINOUS KEYBOARD DEVICE

Primax Electronics Ltd., ...

1. A luminous keyboard device, comprising:
a keypad module exposed to a top surface of said luminous keyboard device;
a supporting plate located under said keypad module and connected with said keypad module for supporting said keypad module,
wherein said supporting plate comprises a first supporting plate opening and a second supporting plate opening;

an illumination circuit board located near said supporting plate for providing electric power;
a first light-emitting element disposed on a top surface of said illumination circuit board, wherein in response to said electric
power, said first light-emitting element emits a first color light beam;

a second light-emitting element disposed on a bottom surface of said illumination circuit board, wherein in response to said
electric power, said second light-emitting element emits a second color light beam;

a first light guide plate arranged between said keypad module and said supporting plate for guiding said first color light
beam to be directed to a first light-outputting zone of said keypad module; and

a second light guide plate located under said supporting plate for guiding said second color light beam to be directed to
a second light-outputting zone of said keypad module through said first supporting plate opening,

wherein when said first color light beam is guided by said first light guide plate to be projected on a third light-outputting
zone of said keypad module and when said second color light beam is guided by said second light guide plate to be projected
on said third light-outputting zone through said second supporting plate opening, said first color light beam and said second
color light beam projected on said third light-outputting zone are mixed as a third color light beam.

US Pat. No. 9,449,771

KEYBOARD MODULE

Primax Electronics Ltd., ...

1. A keyboard module, comprising:
a pressing layer comprising plural key parts, wherein the plural key parts are exposed to a top surface of the keyboard module;
a switch circuit board disposed under the pressing layer, wherein when the switch circuit board is triggered by one of the
plural key parts, a corresponding key signal is generated, wherein the switch circuit board comprises plural key intersections
and plural spacing dots;

a base plate connected with the switch circuit board, wherein the pressing layer and the switch circuit board are supported
on the base plate; and

plural glue dots arranged between the base plate and the switch circuit board, wherein the base plate and the switch circuit
board are combined together through the plural glue dots, wherein the plural glue dots and the plural spacing dots are staggered.

US Pat. No. 9,443,675

KEYBOARD

Primax Electronics Ltd., ...

1. A keyboard, comprising:
plural keys, wherein each key comprises:
a keycap comprising at least one first protrusion part, wherein the first protrusion part has a first slant surface; and
a sliding element disposed under the keycap and comprising at least one second protrusion part, wherein the second protrusion
part has a second slant surface, and the first slant surface and the second slant surface are in parallel with each other;

a base plate disposed under the plural sliding elements of the plural keys and limiting positions of the plural sliding elements,
wherein the base plate comprises plural perforations corresponding to the plural sliding elements; and

a backlight module disposed under the base plate and emitting a light beam to the base plate,
wherein when one of the plural keycaps is depressed and moved toward the base plate, the first slant surface is moved along
the second slant surface to move the sliding element to be moved relative to the base plate in a horizontal direction, so
that the light beam transmitted through the corresponding perforation of the base plate is further transmitted through the
sliding element and outputted from the keycap or the light beam transmitted through the corresponding perforation of the base
plate is blocked by the sliding element.

US Pat. No. 9,430,049

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
a key structure, wherein when said key structure is depressed, a key signal is correspondingly triggered;
a sensor board comprising a key wiring region for sensing a depressing action of said key structure and thereby generates
said key signal;

a light source for emitting a light beam; and
a light guide plate located at a side of said light source for transferring said light beam,
wherein at least one edge region of said sensor board is bent to enclose at least one edge region of said light guide plate
and thereby prevents lateral light leakage of said illuminated keyboard.

US Pat. No. 9,299,515

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a sensing module for generating at least one non-contact key signal;
at least one key disposed over said sensing module, wherein when said at least one key is depressed, said at least one non-contact
key signal is correspondingly generated by said sensing module;

a key substrate for supporting said at least one key and having at least one opening aligned with said at least one key;
at least one bottom-emitting type illumination element disposed under and aligned with said at least one opening and said
at least one key for actively emitting an upward light beam toward said at least one key;

at least one light-transmissible elastic element arranged between said at least one key and said at least one bottom-emitting
type illumination element for providing an elastic force to said pressed at least one key, wherein said at least one light-transmissible
elastic element is configured to cover said at least one bottom-emitting type illumination element while allowing said upward
light beam to transmit therethrough, and said at least one light-transmissible elastic element is contacted by said at least
one key through said at least one opening; and

plural microstructures formed on said at least one light-transmissible elastic element for changing an optical path of said
upward light beam passing therethrough; wherein each of said plural microstructures is a V-cut structure or a texturing structure.

US Pat. No. 9,087,650

KEYCAP STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A keycap structure, comprising:
a reinforcement element comprising two long segments and two short segments; and
a keycap body connected with said reinforcement element, and comprising:
plural fixing parts disposed on a bottom surface of said keycap body for fixing thereto two ends of each long segment of said
reinforcement element; and

two protruding parts protruding downward from said bottom surface of said keycap body and aligned with said two short segments,
respectively;

wherein when said keycap body is pushed down, said two protruding parts urge against said two short segments of said reinforcement
element, respectively, so that a top surface of said keycap body forms a downwardly-concave arc-shaped surface with a distance
between each short segment of said reinforcement element and said top surface of said keycap body being larger than a distance
between each long segment of said reinforcement element and said top surface of said keycap body.

US Pat. No. 9,232,039

AUDIO PLAYBACK SYSTEM

Primax Electronics Ltd., ...

1. An audio playback system, comprising:
a handheld device comprising a first transmitting terminal controller, wherein the first transmitting terminal controller
comprises:

a first visible light emitting element; and
a first optical signal generator for converting a control message into a first pulse signal, and controlling on/off states
of the first visible light emitting element according to the first pulse signal, thereby generating a first visible light
signal, wherein the first optical signal generator comprises:

a first encoder for converting the control message into the first pulse signal; and
a first optical modulator for controlling the on/off states of the first visible light emitting element according to the first
pulse signal; and

a digital stereo set comprising a host and a sound box for playing a digital audio file, wherein the digital stereo set further
comprises a first receiving terminal controller, and the first receiving terminal controller comprises:

a first optical sensor for sensing the on/off states of the first visible light emitting element, thereby receiving the first
visible light signal; and

a first optical signal reader for restoring the first visible light signal to the control message, wherein the first optical
signal reader comprises:

a first pre-processor for adjusting a first electric signal to reduce interference, wherein the first electric signal is generated
when the on/off states of the first visible light emitting element is sensed by the first optical sensor;

a first optical demodulator for restoring the first electric signal to the first pulse signal; and
a first message interpreter for restoring the first pulse signal to the control message,
wherein after the control message is received by the digital stereo set, the digital stereo set performs a corresponding control
action according to the control message.

US Pat. No. 9,058,475

ACCOUNT CREATING AND AUTHENTICATING METHOD

PRIMAX ELECTRONICS LTD., ...

1. An account creating and authenticating method for creating an account in a service system and using said account to login
into said service system, said account creating and authenticating method comprising:
an account creating process, which comprises steps of:
displaying at least one photo on a photo browser on an electronic device comprising a first storage unit containing a plurality
of photos stored therein, wherein said at least one photo is selected from said plurality of photos and is displayed to allow
a user to view and designate a face image of an account applicant in said at least one photo;

transmitting said designated face image of said account applicant from said electronic device to said service system; and
assigning a specified account and a specified password corresponding to said designated face image to said account applicant
by said service system; and

an account authenticating process, which comprises steps of:
using an image pickup device on said electronic device to photograph a face of a login person, thereby generating at least
one photographed face image of said login person;

transmitting said photographed face image of said login person to said service system; and
judging whether said photographed face image of said login person complies with said designated face image, wherein if said
photographed face image of said login person complies with said designated face image, said login person is allowed to login
into said service system as said account applicant, wherein if said photographed face image of said login person complies
with said designated face image, said account creating and authenticating method further comprises a step of said service
system transmitting said specified account and said specified password to said electronic device, and said electronic device
displaying said specified account and said specified password corresponding to said designated face image on the photo browser.

US Pat. No. 9,442,579

TOUCH DEVICE WARNING METHOD AND TOUCH DEVICE WARNING SYSTEM

Primax Electronics Ltd., ...

1. A touch device warning method for a touch device, the touch device being in wireless communication with a touch pen, the
touch device warning method comprising steps of:
judging whether the touch device is triggered by the touch pen, wherein in the step of judging whether the touch device is
triggered by the touch pen, if a judging result indicates that the touch device is triggered by the touch pen, the touch device
warning method further comprises a step of waiting for a first predetermined time and then judging again whether the touch
device is triggered by the touch pen, wherein if the judging result indicates that the touch device is not triggered by the
touch pen, the touch device warning method further comprises a step of starting counting an untouched time period;

if the touch device is not triggered by the touch pen, judging whether the touch device is moved, wherein in the step of judging
whether the touch device is moved, if a judging result indicates that the touch device is not moved, the touch device warning
method further comprises a step of zeroing the untouched time period, wherein if the judging result indicates that the touch
device is moved, the touch device warning method further comprises a step of judging whether the untouched time period exceeds
a second predetermined time; and

if the touch device is moved, issuing a warning signal.

US Pat. No. 9,442,581

TOUCH PEN FOR A CAPACITIVE TOUCH PAD

Primax Electronics Ltd., ...

1. A touch pen for a capacitive touch pad, the touch pen comprising:
a main body;
a contact element disposed on the main body and partially protruded out of the main body, wherein when the contact element
is contacted with the capacitive touch pad, a touch signal is transmitted to the capacitive touch pad through the contact
element;

a sleeve disposed within the main body, wherein the contact element is penetrated through the sleeve and movably fixed on
the sleeve;

a sensing device disposed within the sleeve, wherein in response to a movement of the contact element, the sensing device
is triggered to generate the touch signal, wherein the sensing device comprises:

a circuit board disposed within the main body and partially inserted into the sleeve;
a sensing element disposed on the circuit board and generating a pressure sensing signal;
a controlling unit disposed on the circuit board and connected with the sensing element, wherein according to the pressure
sensing signal, the controlling unit judges whether the touch signal is generated; and

a covering element;
a buffering element disposed within the sleeve and contacted with the contact element and the sensing device, wherein the
contact element and the sensing device are separated from each other by the buffering element, and the touch signal is transmitted
to the contact element through the buffering element; and

a calibration element, wherein the calibration element is disposed within the sleeve, arranged around the buffering element
contracted with the sensing device, wherein the calibration element provides a calibrated elastic force to sensing device,
wherein a first end of the covering element is contracted with the calibration element, a second end of the covering element
is contracted with the sensing element, and the buffering element is covered by the covering element, wherein in response
to the calibrated elastic force provided by the calibration element, the sensing element is continuously pushed by the covering
element, wherein where the contract element is contracted with the capacitive touch pad, the contract element is moved relative
to the sleeve to push the buffering element, so that the buffering elements pushes the covering element to trigger the sensing
element and the sensing element generates a corresponding pressure sensing signal to the controlling unit.

US Pat. No. 9,215,540

BUZZ DETECTING METHOD AND SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A buzz detecting method for testing whether an under-test sound playing device generates a buzz while playing sound, the
buzz detecting method comprising steps of:
(A) allowing an audio processing device to output plural baseband signals to the under-test sound playing device, so that
plural under-test sound signals corresponding to the plural baseband signals are outputted from the under-test sound playing
device, wherein the plural baseband signals have different frequencies, and frequencies of the plural under-test sound signals
are identical to corresponding frequencies of respective baseband signals;

(B) allowing a sound receiving device to receive the plural under-test sound signals and transmit the plural under-test sound
signals to the audio processing device;

(C) allowing an application program module to convert the plural under-test sound signals into plural under-test frequency-domain
signals corresponding to the plural under-test sound signals through Fourier transform;

(D) allowing the application program module to calculate plural under-test noise ratios corresponding to the frequencies of
respective under-test sound signals according to respective under-test frequency-domain signals; and

(E) comparing the plural under-test noise ratios with plural standard noise ratios of a standard sound playing device, thereby
judging whether the under-test sound playing device generates the buzz while playing sound, wherein the standard sound playing
device generates plural standard sound signals with plural frequencies corresponding to respective standard noise ratios,
wherein if the under-test noise ratio corresponding to any frequency of the plural under-test sound signals is higher than
the standard noise ratio corresponding to the frequency by a specified ratio, it is determined that the under-test sound playing
device generates the buzz while playing sound.

US Pat. No. 9,442,238

BACKLIGHT MODULE

Primax Electronics Ltd., ...

1. A background module, comprising:
a light-emitting element for emitting a light beam;
a light guide plate having a sidewall for receiving the light beam, wherein the light beam is guided by the light guide plate
to be transferred within the light guide plate, wherein the light-emitting element is located near the sidewall, and the light
guide plate comprises a first reflective material layer, wherein the first reflective material layer is disposed on a top
surface of the light guide plate and located near the sidewall; and

a light shielding structure disposed over the first reflective material layer for absorbing the light beam and preventing
from leakage of the light beam, wherein when the light beam is projected on the first reflective material layer, a portion
of the light beam is reflected back into the light guide plate by the first reflective material layer, and another portion
of the light beam is transmitted through the first reflective material layer and absorbed by the light shielding structure;
wherein the light guide plate further comprises:

a second reflective material layer disposed on a bottom surface of the light guide plate for reflecting the light beam back
into the light guide plate; and the background module further comprising:

a reflecting ink layer disposed on the second reflective material layer, wherein when a portion of the light beam is transmitted
through the second reflective material layer, the portion of the light beam is reflected back into the light guide plate by
the reflecting ink layer, further comprising an illumination circuit board, wherein the illumination circuit board is disposed
under the light guide plate and fixed on the reflecting ink layer for supporting the light-emitting element and providing
electric power to drive the light-emitting element, wherein the light-emitting element is inserted into an opening of the
light guide plate, and the sidewall of the light guide plate is located at a periphery of the opening, so that the light beam
from the light-emitting element is introduced into the light guide plate through the periphery of the opening.

US Pat. No. 9,230,753

ILLUMINATED TOUCH KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated touch keyboard, comprising:
a light source for emitting a light beam;
a key structure, wherein when said key structure is depressed, a key signal is correspondingly triggered; and
a non-contact sensor board disposed under said key structure for sensing a depressing action of said key structure, thereby
generating said key signal, wherein said non-contact sensor board comprises:

a light-shading plate comprising a first wiring layer and plural light-transmissible regions, wherein said first wiring layer
is formed on a first surface of said light-shading plate, and said light beam is transmissible through said plural light-transmissible
regions;

a light guide plate disposed under said light-shading plate for transferring said light beam, which is emitted by said light
source;

a reflecting plate disposed under said light guide plate for reflecting said light beam, wherein said reflecting plate comprises
a second wiring layer, and said second wiring layer is formed on a second surface of said reflecting plate; and

a pin electrically connected with said first wiring layer of said light-shading plate and said second wiring layer of said
reflecting plate.

US Pat. No. 9,412,536

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
at least one light-emitting element providing a light beam to the illuminated keyboard;
a membrane switch circuit module generating plural key switch signals;
plural keys disposed over the membrane switch circuit module, wherein when one of the plural keys is depressed, the membrane
switch circuit module generates the corresponding key switch signal, respectively, wherein each of the plural keys comprises
an elastic element and a keycap connected with the elastic element;

a fixing plate arranged between the membrane switch circuit module and the plural keys, wherein the fixing plate comprises:
plural openings disposed under each of the plural keycaps;
plural fixing regions disposed under the plural keycaps, respectively, wherein each of the plural fixing regions is arranged
between the plural openings under the corresponding keycap so as to fasten the corresponding elastic element, wherein each
of the plural fixing regions has a hole, and the corresponding elastic element is penetrable through the hole to push the
membrane switch circuit module; and

plural joining regions, wherein the openings between the plural fixing regions are connected with each other through the plural
joining regions; and

a proximity sensor sensing whether an object enters a sensing range, wherein the proximity sensor comprises an induction antenna
circuit, and the induction antenna circuit is formed on the plural joining regions or the plural fixing regions of the fixing
plate.

US Pat. No. 9,229,598

TOUCH PEN

PRIMAX ELECTRONICS LTD., ...

1. A touch pen for a capacitive touch screen, the touch pen comprising:
a signal receiver conductor receiving a first touch signal from the capacitive touch screen;
a signal detecting and adjusting circuit enlarging the first touch signal to a second touch signal, wherein the second touch
signal has a standard intensity, wherein the signal detecting and adjusting circuit comprises:

a first amplifying circuit enlarging the first touch signal with a first magnification factor so as to generate a first amplified
signal;

a second amplifying circuit calculating a second magnification factor according to the first amplified signal and an intermediary
intensity, and enlarging the first amplified signal with the second magnification factor so as to generate a second amplified
signal, wherein the second amplified signal has the intermediary intensity; and

a third amplifying circuit enlarging the second amplified signal with a third magnification factor so as to generate the second
touch signal; and

a signal transmitter conductor issuing the second touch signal to the capacitive touch screen, wherein according to the second
touch signal, the capacitive touch screen senses a position of a touch point of the touch pen.

US Pat. No. 9,213,416

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
a sensing circuit layer for generating at least one non-contact key signal;
at least one key disposed over said sensing circuit layer, wherein when said key is depressed, said non-contact key signal
is correspondingly generated by said sensing circuit layer;

at least one light-emitting element for providing a light beam to said key;
a light guide plate disposed under said key for transferring said light beam from said light-emitting element; and
at least one light-transmissible elastic element arranged between said key and said light guide plate for providing an elastic
force to said key, wherein said light-transmissible elastic element has at least one light-diffusing part,

wherein after said light beam from said light-emitting element is transmitted through said light-transmissible elastic element,
said light beam is projected onto said key,

wherein said sensing circuit layer comprises a first electrode layer, a second electrode layer and a first substrate, wherein
said first electrode layer and said second electrode layer are formed on said first substrate, wherein said first electrode
layer comprises plural first electrode patterns, and said second electrode layer comprises plural second electrode patterns,
wherein when said sensing circuit layer is electrically conductive, plural electric fields between said plural first electrode
patterns and said plural second electrode patterns are generated, wherein as a keycap of said key is moved to a position near
a corresponding electric field, said corresponding electric field is changed, so that said non-contact key signal is generated
by said sensing circuit layer.

US Pat. No. 9,502,191

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a keypad module exposed to a top surface of the luminous keyboard;
at least one light-emitting element disposed under the keypad module, and emitting at least one light beam;
an illumination circuit board disposed under the keypad module, and supporting the at least one light-emitting element; and
a light guide plate disposed under the keypad module, wherein the at least one light beam is subjected to total internal reflection
within the light guide plate and guided to the keypad module by the light guide plate,

wherein the illumination circuit board has a light amount control structure, and the light amount control structure is disposed
on a bottom surface of the illumination circuit board, wherein when the at least one light beam is transmitted through the
illumination circuit board, a light amount of the at least one light beam transmitted through the illumination circuit board
is reduced by the light amount control structure, wherein the light amount control structure is made of a light absorption
material, and the light amount control structure is attached, printed, transfer-printed or deposited on a bottom surface of
the circuit board main body.

US Pat. No. 9,383,859

MULTI-MODE TOUCH INPUT DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A multi-mode touch input device, comprising:
a first touch input device generating a first touch signal; and
a second touch input device generating a second touch signal, wherein when a first lateral surface of the first touch input
device and a first lateral surface of the second touch input device are combined together, both of the first touch input device
and the second touch input device are operated in a keyboard mode, and the first touch input device and the second touch input
device are collaboratively defined as a touch keyboard, wherein when a second lateral surface of the first touch input device
and a second lateral surface of the second touch input device are combined together, both of the first touch input device
and the second touch input device are operated in a handwriting tablet mode, and the first touch input device and the second
touch input device are collaboratively defined as a handwriting tablet

wherein the first touch input device comprises:
a first sensing switch disposed on the first lateral surface of the first touch input device;
a second sensing switch disposed on the second lateral surface of the first touch input device; and
a first controlling unit connected with the first sensing switch and the second sensing switch, wherein when the first sensing
switch is triggered, the first controlling unit controls the first touch input device to be operated in the keyboard mode,
wherein when the second sensing switch is triggered, the first controlling unit controls the first touch input device to be
operated in the handwriting tablet mode,

wherein the second touch input device comprises:
a third sensing switch disposed on the first lateral surface of the second touch input device;
a fourth sensing switch disposed on the second lateral surface of the second touch input device; and
a second controlling unit connected with the third sensing switch and the fourth sensing switch, wherein when the third sensing
switch is triggered, the second controlling unit controls the second touch input device to be operated in the keyboard mode,
wherein when the fourth sensing switch is triggered, the second controlling unit controls the second touch input device to
be operated in the handwriting tablet mode,

wherein when the first lateral surface of the first touch input device and the first lateral surface of the second touch input
device are combined together, the first sensing switch is triggered by the second touch input device and the third sensing
switch is triggered by the first touch input device, wherein when the second lateral surface of the first touch input device
and the second lateral surface of the second touch input device are combined together, the second sensing switch is triggered
by the second touch input device and the fourth sensing switch is triggered by the first touch input device.

US Pat. No. 9,214,295

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:
a base plate;
a switch circuit board disposed on the base plate, wherein when the switch circuit board is triggered, the switch circuit
board generates a key signal;

a keycap disposed over the switch circuit board, wherein when the keycap is depressed, the keycap is moved to trigger the
switch circuit board, wherein the keycap comprises a magnetic element, and the magnetic element is disposed on an edge part
of the keycap for generating a magnetic force; and

an enclosure frame disposed over the switch circuit board and connected with the keycap for stopping the keycap to be escaped
from the enclosure frame, wherein the enclosure frame has a magnetic coating layer, and the magnetic coating layer is formed
on an edge part of the enclosure frame and disposed over the magnetic element, wherein in response to the magnetic force of
the magnetic element, the magnetic coating layer is contacted with the magnetic element,

wherein when the keycap is depressed, the keycap is moved to trigger the switch circuit board, wherein when the keycap is
no longer depressed, the keycap is moved toward the magnetic coating layer and contacted with the enclosure frame in response
to the magnetic force,

wherein the enclosure frame further comprises an inclined guiding recess, and the inclined guiding recess is formed in a sidewall
of the enclosure frame, wherein the keycap further comprises an inclined protrusion block, and the inclined protrusion block
is disposed on another edge part of the keycap and inserted into the inclined guiding recess and contacted with the inclined
guiding recess, wherein when the keycap is not depressed, the inclined protrusion block is supported by the inclined guiding
recess, so that the keycap is located at a first height, wherein when the keycap is depressed, the inclined protrusion block
is slid within the inclined guiding recess, so that the keycap is located at a second height, wherein the second height is
lower than the first height.

US Pat. No. 9,214,301

LUMINOUS KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard device, comprising:
a keypad module exposed to a top surface of the luminous keyboard device;
a supporting plate disposed under the keypad module and supporting the keypad module, wherein the supporting plate comprises
at least one receiving part;

a flexible circuit board disposed under the keypad module and providing electric power, wherein the flexible circuit board
is contacted with the at least one receiving part, and the flexible circuit board has at least one first bent structure corresponding
to the at least one receiving part;

at least one light-emitting element disposed on the flexible circuit board and located near the at least one receiving part,
wherein by acquiring the electric power, the at least one light-emitting element is driven to emit at least one light beam;

a reflective layer disposed on the flexible circuit board and reflecting the at least one light beam; and
a light guide plate disposed under the keypad module, and allowing the at least one light beam to go through and guide the
at least one light beam to the keypad module, wherein the light guide plate is thinner than each of the at least one light-emitting
element, wherein a first portion of the at least one light beam is directly introduced into the light guide plate, and a second
portion of the at least one light beam is reflected by the reflective layer on the at least one first bent structure and then
introduced into the light guide plate.

US Pat. No. 9,385,519

CORD WINDER

PRIMAX ELECTRONICS LTD., ...

1. A cord winder, comprising:
a base comprising a protruding post;
a rotating disc disposed on said base, and comprising a perforation and a fixing recess communicated with each other, wherein
said protruding post is penetrated through said rotating disc;

a spiral spring disposed on said rotating disc, and wound around said protruding post, wherein an inner end of said spiral
spring is fixed on said protruding post, and an outer end of said spiral spring is fixed on said rotating disc;

a cord sequentially wound on a first surface of said rotating disc, penetrated through said perforation, fixed in said fixing
recess, and wound on a second surface of said rotating disc, wherein a first end part of said cord is exposed outside said
base, and a second end part of said cord is fixed on a sidewall of said base and exposed outside said base;

a cord positioning element connected with said rotating disc, wherein two notches are formed in an inner surface of said cord
positioning element;

a push button comprising a pressing part and two protruding blocks, wherein said two protruding blocks are in contact with
said inner surface of said cord positioning element for limiting rotation of said cord positioning element;

a position-restoring element arranged between said push button and said base for providing a restoring force to said push
button;

a top cover connected with said base, and comprising a hollow portion, wherein said hollow portion is formed in a top surface
of said top cover, wherein said pressing part of said push button is inserted into said hollow portion, and said push button
is not rotated relative to said top cover;

a covering plate fixed on said rotating disc for preventing said cord and said spiral spring from being detached from said
rotating disc, wherein said protruding post is penetrated through said covering plate and said cord positioning element is
fixed on said covering plate; and

a position-limiting mechanism connected with said protruding post of said base and located near said covering plate for preventing
said covering plate and said rotating disc from being detached from said protruding post of said base, wherein said position-restoring
element is arranged between said position-limiting mechanism and said push button,

wherein when said first end part of said cord is pulled away from said base, said rotating disc and said cord positioning
element are rotated in a first direction, and said two protruding blocks of said push button are moved along said inner surface
of said cord positioning element, wherein when said first end part of said cord is no longer pulled, said two protruding blocks
are respectively contacted with said two notches, so that said rotating disc and said cord positioning element are not rotated,
wherein when said push button is pressed down, said two protruding blocks are separated from said inner surface of said cord
positioning element, and said rotating disc and said cord positioning element are rotated in a second direction by said spiral
spring, so that said cord is retracted back.

US Pat. No. 9,331,692

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a sensing circuit pattern for generating at least one non-contact key signal;
at least one key, wherein when said at least one key is depressed, said at least one non-contact key signal is correspondingly
generated by said sensing circuit pattern;

a lateral-emitting type illumination element for providing a light beam;
a light guide panel, wherein said lateral-emitting type illumination element is located at a lateral side of said light guide
panel, and said light guide panel has at least one light-guiding dot for collecting and scattering said light beam from said
lateral-emitting type illumination element;

a supporting plate for connecting and supporting said at least one key, wherein said supporting plate has at least one light-transmissible
part corresponding to said at least one key;

a light-transmissible substrate arranged between said supporting plate and said light guide panel, wherein said light-transmissible
substrate comprises at least one light diffusion structure corresponding to said at least one key for changing an optical
path of said light beam from said at least one light-guiding dot; and

a sensing circuit board on which said sensing circuit pattern is formed, the sensing circuit board arranged between said light
guide panel and said supporting plate, and having at least one perforation corresponding to said at least one light diffusion
structure;

wherein said light beam from said at least one light-guiding dot is sequentially transmitted through said at least one perforation,
said at least one light diffusion structure, said at least one light-transmissible part and then directed to said at least
one key,

wherein said at least one light diffusion structure comprises plural microstructures, and said plural microstructures are
formed on said light-transmissible substrate; or

wherein said at least one light diffusion structure is at least one lens, and said at least one lens is formed on said light-transmissible
substrate; or

wherein said at least one light diffusion structure has a lens profile, and said at least one light diffusion structure is
integrally formed with said light-transmissible substrate.

US Pat. No. 9,450,448

WIRELESS CHARGING DEVICE AND ELECTRIC ENERGY RECYCLING METHOD THEREOF

Primax Electronics Ltd., ...

1. A wireless charging device for wirelessly charging an electronic device, the wireless charging device comprising:
a casing;
a transmitter coil disposed within the casing;
a first driving circuit connected with the transmitter coil;
a recycling coil;
a recycling battery; and
a second driving circuit connected between the recycling battery and the recycling coil, and comprising a charging unit,
wherein when the first driving circuit receives an electric power and provides a driving voltage to the transmitter coil,
a magnetic flux is generated by the transmitter coil, wherein a first portion of the magnetic flux is transmitted to a receiver
coil of the electronic device, and a second portion of the magnetic flux is recycled by the recycling coil, wherein after
the second portion of the magnetic flux is recycled by the recycling coil, the second portion of the magnetic flux is converted
into a charging current by the charging unit, so that the recycling battery is charged by the charging current.

US Pat. No. 9,280,211

REMOTE CONTROLLER

PRIMAX ELECTRONICS LTD., ...

1. A remote controller of an electronic device, comprising:
a first input interface operationally enabled and manipulated to generate a first input signal for controlling a first set
of functions of said electronic device;

a second input interface operationally enabled and manipulated to generate a second input signal for controlling a second
set of functions of said electronic device;

an angle sensor for detecting a rotation angle of said remote controller, generating a first angle signal when a magnitude
of said rotation angle is less than a first preset value, generating a second angle signal when a magnitude of said rotation
angle lies between the first preset value and a second preset value, and generating a third angle signal when a magnitude
of said rotation angle is larger than said second preset value; and

a microprocessor enabling said first input interface to be manipulated to generate said first input signal in response to
said first angle signal, suspending said first input interface from being manipulated to generate said first input signal
in response to said second angle signal, wherein said remote controller enters a power-saving mode in response to said second
angle signal, and enabling said second input interface to be manipulated to generate said second input signal in response
to said third angle signal.

US Pat. No. 9,146,649

PASSIVE TOUCH PEN

PRIMAX ELECTRONICS LTD., ...

1. A passive touch pen for a capacitive touch screen, the passive touch pen comprising:
a pen tube comprising a vent;
a fixing post located at a front end of the pen tube, and comprising a first perforation and a second perforation, wherein
the first perforation is open to a top surface of the fixing post, and the second perforation is open to a lateral surface
of the fixing post; and

a conductive rubber tip sheathed around the fixing post and exposed outside the front end of the pen tube, wherein there is
a vacant space between the conductive rubber tip and the top surface of the fixing post, wherein when the conductive rubber
tip is compressed, air within the vacant space is discharged out of the vacant space, wherein when the conductive rubber tip
is no longer compressed, air is introduced into to the vacant space through the vent, the second perforation and the first
perforation, so that the conductive rubber tip is restored to an original non-compressed shape.

US Pat. No. 9,443,674

ILLUMINATED KEYBOARD DEVICE

Primax Electronics Ltd., ...

1. An illuminated keyboard device, comprising:
plural keys comprising plural keycaps, respectively, wherein each of the plural keycaps has at least one light outputting
zone;

a membrane switch circuit module located under the plural keys, wherein when one of the plural keycaps is depressed, the membrane
switch circuit module is triggered to generate a corresponding key signal, wherein the membrane switch circuit module comprises
an upper wiring plate, a lower wiring plate and a spacer layer, and the spacer layer is arranged between the upper wiring
plate and the lower wiring plate; and

plural light-emitting elements disposed on a top surface of the upper wiring plate and located under the corresponding keycaps,
wherein the plural light-emitting elements emit plural light beams to the corresponding light outputting zones, wherein plural
light source wiring lines are formed on the top surface of the upper wiring plate, and the plural light-emitting elements
are connected with each other through the plural light source wiring lines.

US Pat. No. 9,274,692

REMOTE CONTROL SYSTEM FOR PRESENTATION

PRIMAX ELECTRONICS LTD., ...

1. A remote control system for presentation, comprising:
a first digital processing device including a USB port, a server driver and a network transmitting unit, and executing a presentation
file to display a presentation frame;

a second digital processing device including a network receiving unit and a remote driver, wherein the network receiving unit
is communicable with the network transmitting unit via a network, and controlled to display the same presentation frame as
that displayed by the first digital processing device; and

an input device in communication with the USB port, generating a USB signal in response to an operation of a user thereon,
thereby having the first digital processing device execute a presentation control instruction on the presentation frame;

wherein there is a signal processing protocol between the remote driver and the server driver for standardizing a packing
process and an unpacking process of the USB signal, the server driver executes the packing process of the USB signal received
by the USB port according to the signal processing protocol and transmits the USB signal having been processed by the packing
process out from the network transmitting unit to the network receiving unit, and the remote driver executes the unpacking
process of the USB signal received by the network receiving unit so as to have the second digital processing device execute
the presentation control instruction on the presentation frame.

US Pat. No. 9,087,662

KEYBOARD WITH INDUCTION ANTENNA ARRANGED UNDER A KEY

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:
a membrane switch circuit module generating plural key switch signals;
a metallic supporting plate disposed under the membrane switch circuit module;
plural keys disposed over the membrane switch circuit module, wherein when one of the plural keys is depressed, the membrane
switch circuit module generates the corresponding key switch signal;

an induction antenna assembly arranged between the metallic supporting plate and a specified key of the plural keys, wherein
the induction antenna assembly comprises a first partition plate, a second partition plate and an antenna layer, wherein the
second partition plate is connected with the first partition plate and arranged between the first partition plate and the
specified key, wherein the antenna layer is arranged between the first partition plate and the second partition plate; and

a signal processing unit electrically connected with the antenna layer, wherein when the antenna layer senses that an object
enters a sensing range, the signal processing unit issues a sensing signal.

US Pat. No. 9,489,836

CONTROL SYSTEM AND PASSIVE DEVICE CONTROL METHOD

PRIMAX ELECTRONICS LTD., ...

1. A control system, comprising:
a passive device having a communication identification information;
a server storing an operation interface information corresponding to the passive device; and
an active device wirelessly connected with the passive device and connected with the server through network connection, wherein
the active device retrieves the operation interface information from the server according to a device information of the passive
device, wherein the active device comprises a display screen and an input part, wherein an operation interface corresponding
to the operation interface information is displayed on the display screen, and the passive device is controlled by the active
device in response to an input operation on the input part.

US Pat. No. 9,297,857

MEMBRANE SWITCH CIRCUIT TESTING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A membrane switch circuit testing system for testing a membrane switch circuit, the membrane switch circuit comprising
plural scan input lines, plural scan output lines and plural key intersections, the plural key intersections being defined
by the plural scan input lines and the plural scan output lines collaboratively, at least one key intersection of the plural
key intersections generating an intersection resistance value when electrically conducted, the membrane switch circuit testing
system comprising:
a connection element connected with the membrane switch circuit; and
a testing module connected with the connection element, and testing the plural intersection resistance values corresponding
to the plural key intersections of the membrane switch circuit, wherein the testing module comprises:

a control unit having a default resistance value, wherein the control unit recognizes the at least one key intersection, or
the control unit judging whether the key intersection is qualified according to the intersection resistance value and the
default resistance value, wherein the control unit comprises plural first connecting pins corresponding to respective scan
input lines and plural second connecting pins corresponding to respective scan output lines, wherein the plural first connecting
pins are connected with respective scan input lines, and the plural second connecting pins are connected with respective scan
output lines; and

plural fixed resistors corresponding to respective scan input lines and connected with respective first connecting pins, wherein
when one of the plural key intersections is depressed, an equivalent circuit is defined by the depressed key intersection
and the corresponding fixed resistor, wherein the control unit acquires the corresponding intersection resistance value from
the equivalent circuit, thereby judging whether the depressed key intersection is qualified.

US Pat. No. 9,229,513

BATTERY CAPACITY DISPLAYING SYSTEM FOR WIRELESS PERIPHERAL DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A battery capacity displaying system for a wireless peripheral device, the battery capacity displaying system comprising:
a host
a display device in communication with the host; and
the wireless peripheral device in communication with the host, wherein the wireless peripheral device comprises:
a battery disposed within the wireless peripheral device for providing electric power to the wireless peripheral device; and
a triggering element disposed on the wireless peripheral device, wherein when the triggering element is pressed, a wireless
signal containing a battery capacity data is transmitted from the wireless peripheral device to the host, wherein after the
wireless signal is received by the host, a residual battery capacity corresponding to the wireless signal is displayed on
the display device;

wherein when the residual battery capacity corresponding to the wireless signal is displayed on the display device, if another
wireless signal from the wireless peripheral device or another wireless peripheral device is received by the host, the host
stops displaying the residual battery capacity on the display device.

US Pat. No. 9,330,609

LUMINANCE ADJUSTING METHOD FOR DISPLAY SCREEN OF ELECTRONIC DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A luminance adjusting method for a display screen of an electronic device, the luminance adjusting method comprising steps
of:
storing a default brightness value and a default imaging color value;
recording a current brightness value and a current imaging color value of the display screen in response to an activating
operation;

adjusting a light output of an illumination module of the display screen in response to a triggering operation, so that an
adjusted brightness value of the display screen is equal to the default brightness value and an adjusted imaging color value
of the display screen is equal to the default imaging color value; and

adjusting the light output of the illumination module of the display screen in response to an additional triggering operation,
so that the adjusted brightness value of the display screen is equal to the recorded current brightness value and the adjusted
imaging color value of the display screen is equal to the recorded current imaging color value, wherein the default brightness
value is lower than the current brightness value, and the default imaging color value is lower than the current imaging color
value.

US Pat. No. 9,332,365

STEREO DEVICE TESTING METHOD AND STEREO DEVICE TESTING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A stereo device testing method for detecting a gas leakage condition of a stereo device, the stereo device testing method
comprising steps of:
(A) fixing the stereo device, and continuously inputting a gas into an inner space of the stereo device;
(B) detecting an internal pressure value of the inner space of the stereo device after a predetermined time period; and
(C) judging whether the internal pressure value is higher than or equal to a default pressure value, thereby determining whether
the stereo device is qualified or not, wherein if the internal pressure value is higher than or equal to the default pressure
value, the stereo device is qualified, wherein if the internal pressure value is lower than the default pressure value, the
stereo device is unqualified.

US Pat. No. 9,172,419

PROTECTING DEVICE FOR TABLET COMPUTER

PRIMAX ELECTRONICS LTD., ...

1. A protecting device with keys' functions, the protecting device being in communication with a tablet computer, the tablet
computer being storable within the protecting device, the protecting device comprising:
a base;
a printed circuit board disposed over the base, wherein the printed circuit board comprises plural first contacts, and the
plural first contacts are disposed on a top surface of the printed circuit board; and

a triggering member disposed over the printed circuit board and exposed to an inner surface of the protecting device, wherein
the triggering member and the plural first contacts of the printed circuit board collaboratively generate plural key signals,
wherein the triggering member comprises:

a superficial contact layer exposed to the inner surface of the protecting device, and comprising plural contact regions,
wherein the plural contact regions are disposed over the corresponding first contacts, respectively;

a first plastic film layer disposed on a bottom surface of the superficial contact layer;
a conductive wiring layer disposed on a bottom surface of the first plastic film layer, and comprising plural second contacts,
wherein the plural second contacts are aligned with the plural contact regions, respectively; and

plural curable resinic structures arranged between the first plastic film layer and the printed circuit board, wherein each
of the plural curable resinic structures is arranged between two adjacent second contacts, wherein the plural first contacts
and the plural second contacts are separated from each other by the plural curable resinic structures, wherein when one of
the plural contact regions is depressed, the second contact corresponding to the depressed contact region is inserted into
a space between the two adjacent curable resinic structures and contacted with the corresponding first contact, so that the
corresponding key signal is generated and transmitted to the tablet computer.

US Pat. No. 9,531,213

WIRELESS POWER TRANSMISSION DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A wireless power transmission device for wirelessly charging an electronic device, the wireless power transmission device
comprising:
a main body;
a driving circuit disposed within the main body, and providing a first voltage or a second voltage;
a first transmitter coil disposed within the main body and located near a first lateral side of the main body; and
a second transmitter coil disposed within the main body, located away from the first lateral side of the main body, and partially
stacked over the first transmitter coil,

wherein if the electronic device is not placed on the main body and the first transmitter coil is in a detecting mode, the
driving circuit periodically provides the first voltage to the first transmitter coil at a first predetermined time interval,
wherein a first magnetic flux is generated by the first transmitter coil according to the first voltage and the first magnetic
flux is attenuated by the second transmitter coil, so that the attenuated first magnetic flux is periodically outputted from
the wireless power transmission device at the first predetermined time interval,

wherein if the electronic device is not placed on the main body and the second transmitter coil is in a detecting mode, the
driving circuit periodically provides the first voltage to the second transmitter coil at the first predetermined time interval,
wherein a second magnetic flux is generated by the second transmitter coil according to the first voltage and the second magnetic
flux is attenuated by the first transmitter coil, so that the attenuated second magnetic flux is periodically outputted from
the wireless power transmission device at the first predetermined time interval,

wherein if the electronic device is placed on the main body and located near the first transmitter coil, the driving circuit
provides a third voltage to the first transmitter coil, so that the first transmitter coil is in a charging mode and the first
transmitter coil generates a fourth magnetic flux to a receiver coil of the electronic device,

wherein if the electronic device is placed on the main body and located near the second transmitter coil, the driving circuit
provides the third voltage to the second transmitter coil, so that the second transmitter coil is in the charging mode and
the second transmitter coil generates a fifth magnetic flux to the receiver coil, the wireless power transmission device further
comprising:

a detecting module disposed within the main body, and detecting whether the electronic device is placed on the main body and
whether the electronic device is located near the first transmitter coil or the second transmitter coil; and

a controlling unit connected with the detecting module and the device circuit,
wherein if the electronic device is placed on the main body and located near the first transmitter coil, a first communication
signal from the receiver coil is received by the first transmitter coil, the first communication signal is transmitted to
the detecting module, and a second switching signal is transmitted from the detecting module to the controlling unit, wherein
the controlling unit controls the driving circuit to provide the third voltage according to the second switching signal, so
that a third current is generated to the first transmitter coil and the first transmitter coil is in the charging mode,

wherein if the electronic device is placed on the main body and located near the second transmitter coil, a second communication
signal from the receiver coil is received by the second transmitter coil, the second communication signal is transmitted to
the detecting module, and a third switching signal is transmitted from the detecting module to the controlling unit, wherein
the controlling unit controls the driving circuit to provide the third voltage according to the second transmitter coil, so
that the third current is generated to the second transmitter coil and the second transmitter coils is in the charging mode,

wherein if the electronic device is not placed on the main body and the first communication signal or the second communication
signal is not received by the detecting module, a first switching signal is transmitted from the detecting module to the controlling
unit, wherein according to the first switching signal, the controlling unit controls the driving circuit to provide the first
voltage within a first predetermined time segment such that the first current is generated to the first transmitter coil and
the first transmitter coil is in the detecting mode, and the controlling unit controls the driving circuit to provide the
first voltage within a second predetermined time segment such that the first current is generated to the second transmitter
coil and the second transmitter coil is in the detecting mode.

US Pat. No. 9,348,461

INPUT SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. An input system, comprising:
an electronic device, wherein an application program is installed in the electronic device, wherein when the application program
is activated, a target object is displayed on a display screen of the electronic device, wherein the electronic device generates
a spatial information of the target object; and

a touchpad device connected with the electronic device, and receiving the spatial information of the target object, wherein
the touchpad device generates an object projection image of the target object according to the spatial information, wherein
the touchpad device comprises:

a first projecting device disposed on a top surface of the touchpad device and located at a first side of the touchpad device,
wherein the first projecting device generates a first projection image according to the spatial information, and the first
projecting device generates a first optical signal according to a hand operation of a user on the object projection image;

a second projecting device disposed on the top surface of the touchpad device and located at a second side of the touchpad
device, wherein the second projecting device generates a second projection image according to the spatial information, and
the second projecting device generates a second optical signal according to the hand operation, wherein the first projection
image and the second projection image are collaboratively formed as the object projection image;

an airflow sensor disposed on the top surface of the touchpad device, wherein the airflow sensor detects an airflow change
according to the hand operation, thereby generating an airflow signal; and

a controlling unit connected with the first projecting device, the second projecting device and the airflow sensor, wherein
when the controlling unit receives the first optical signal, the second optical signal and the airflow signal, the controlling
unit issues a first control signal to the electronic device, issues a second control signal to the first projecting device
and issues a third control signal to the second projecting device, wherein the target object is controlled by the application
program according to the first control signal, and the object projection image is moved according to the second control signal
and the third control signal.

US Pat. No. 9,576,187

PHOTO SHARING SYSTEM WITH FACE RECOGNITION FUNCTION

PRIMAX ELECTRONICS LTD., ...

1. A photo sharing system with a face recognition function, the photo sharing system comprising:
a photo browser included in an electronic device that allows a user to browse plural photos by operating the electronic device,
wherein the photo browser comprises:

a user interface that shows the plural photos;
a photo classification module that is activated to automatically classify the plural photos into groups according to face
images contained in the plural photos and identified by the face recognition function while showing the groups of photos on
the user interface for selection; and

a photo transmission module that is activated to automatically pack and transmit a selected one of the groups of photos to
a photo sharing platform; and

the photo sharing platform included in a cloud server, wherein the cloud server is in communication with the electronic device
through an internet, and the photo sharing platform comprising:

a photo file management module that manages at least a photo folder that stores the selected group of photos received from
the electronic device to be accessible by a specified receiver;

a sharing notification module that generates and issues a photo sharing notice of the selected group of photos to the specified
receiver, wherein if the specified receiver has no user account in the photo sharing platform, the photo sharing notice is
sent to the specified receiver through an electronic mail box, a short message or a social networking website account, and
if the specified receiver has a user account in the photo sharing platform, the photo sharing notice is shown on a user interface
of a photo browser of the receiver, wherein when the photo sharing notice is shown on the user interface of the photo browser
of the specified receiver, the photo sharing notice contains a face image of a photo sharer and a face image of the specified
receiver.

US Pat. No. 9,496,104

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a keypad module exposed to a top surface of the luminous keyboard;
at least one light-emitting element disposed under the keypad module, and emitting at least one light beam;
an illumination circuit board disposed under the keypad module, and supporting the at least one light-emitting element, wherein
the illumination circuit board comprises a circuit board main body and a protective layer, wherein the circuit board main
body is electrically connected with the at least one light-emitting element, the at least one light-emitting element is supported
on the circuit board main body, and the protective layer is disposed on a top surface of the circuit board main body to protect
the circuit board main body; and

a light guide plate disposed under the keypad module, wherein the at least one light beam is subjected to total internal reflection
within the light guide plate and guided to the keypad module by the light guide plate,

wherein the protective layer has a light amount control structure, and the light amount control structure is disposed on a
top surface of the protective layer, wherein when the at least one light beam is projected on the illumination circuit board,
a reflected fraction of the at least one light beam is reduced by the light amount control structure, wherein the light amount
control structure is arranged between the circuit board main body and the light guide plate, and exposed to a region between
the at least one light-emitting element and the light guide plate, wherein the light amount control structure increases a
number of times of reflecting the at least one light beam so as to reduce the reflected fraction of the at least one light
beam, wherein the light amount control structure is a texturing structure that is integrally formed with the protective layer.

US Pat. No. 9,489,319

OPERATING TIME SUPERVISORY SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. An operating time supervisory system, comprising:
a computer host, wherein an application program and a device driver are installed in the computer host, and the device driver
contains a supervisory program, wherein when the application program is opened in the computer host, the supervisory program
recognizes the application program and starts to calculate an operating time of the application program;

a computer screen connected with the computer host, wherein an operating picture of the computer host is displayed on the
computer screen; and

an input device connected with the computer host, wherein after the input device is driven by the device driver, the computer
host is controlled in response to a user's operation on the input device, wherein if the supervisory program judges that the
application program is still operated at a prompt time point, the operating time corresponding to the prompt time point is
displayed on the computer screen under control of the supervisory program,

wherein a supervisory setting option of the supervisory program is displayed on the operating picture of the computer host,
wherein after the supervisory setting option is selected, the user is allowed to perform a prompt setting task, a lock setting
task and a connection establishing task, wherein after the computer host activates the supervisory setting option, a setting
interface is displayed on the computer screen by the supervisory program, and the setting interface contains a prompt setting
option, a lock setting option and a connection establishing setting option, wherein when the prompt setting option, the lock
setting option and the connection establishing setting option are activated, a prompt setting field, a locking setting field
and a connection establishing field are respectively provided, wherein the prompt setting field receive an event occurrence
time point information, the locking setting field receives an open time segment information, and the connection establishing
field receives an identification element of the application program.

US Pat. No. 9,331,519

PROTECTING DEVICE FOR ELECTRONIC DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A protecting device for an electronic device, said protecting device comprising:
a casing for partially covering said electronic device, wherein said casing has a first accommodating part for accommodating
said electronic device, wherein when said electronic device is accommodated within said first accommodating part, a display
screen of said electronic device is exposed outside;

an energy storage element disposed within said casing for providing electric power;
a second accommodating part disposed in said casing for accommodating a peripheral component; and
a wireless charging module connected with said energy storage element, wherein in response to said electric power, said electronic
device within said first accommodating part is wirelessly charged by said wireless charging module, and said peripheral component
within said second accommodating part is wirelessly charged by said wireless charging module, wherein when said peripheral
component is accommodated within said second accommodating part, said peripheral component is wirelessly charged by said wireless
charging module.

US Pat. No. 9,570,937

WIRELESS POWER TRANSMISSION DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A wireless power transmission device for wirelessly charging an electronic device, the wireless power transmission device
comprising:
a main body;
a driving circuit disposed within the main body, and providing a first voltage or a second voltage;
a first transmitter coil disposed within the main body and connected with the driving circuit;
a second transmitter coil disposed within the main body and connected with the driving circuit, wherein the second transmitter
coil is stacked over the first transmitter coil; and

a switching element, wherein an input terminal of the switching element is connected to the driving circuit, and an output
terminal of the switching element is connected to the second transmitter coil,

wherein if the wireless power transmission device is operated in a detecting mode, the driving circuit periodically provides
the first voltage to the first transmitter coil at a first predetermined time interval, so that a first magnetic flux is generated
by the first transmitter coil and the first magnetic flux is attenuated by the second transmitter coil, wherein the attenuated
first magnetic flux is periodically outputted from the wireless power transmission device at the first predetermined time
interval,

wherein if the wireless power transmission device is operated in a charging mode, the driving circuit provides the second
voltage to the first transmitter coil and the second transmitter coil, wherein according to the second voltage, a second magnetic
flux is generated by the first transmitter coil and a third magnetic flux is generated by the second transmitter coil, so
that the second magnetic flux and the third magnetic flux are transmitted from the wireless power transmission device to a
receiver coil of the electronic device,

wherein if the wireless power transmission device is operated in the charging mode, the first transmitter coil and the second
transmitter coil are connected with each other in parallel,

wherein if the wireless power transmission device is operated in the detecting mode, the output terminal and the input terminal
of the switching element are disconnected from each other, and the driving circuit periodically provides the first voltage
at the first predetermined time interval to generate a first current, wherein when the first current flows through the first
transmitter coil, a first electromagnetic effect is generated, and a first magnetic flux is generated by the first transmitter
coil according to the first electromagnetic effect, wherein the first transmitter coil is sheltered by the second transmitter
coil, so that the first magnetic flux is attenuated, wherein the attenuated first magnetic flux is periodically outputted
from the wireless power transmission device at the first predetermined time interval,

wherein if the wireless power transmission device is operated in the charging mode, the output terminal and input terminal
of the switching element are connected with each other, so that first transmitter coil and the second transmitter coil are
connected with each other in parallel, and the driving circuit provides the second voltage to generate a second current, wherein
when the second current flows through the first transmitter coil and the second transmitter coil, a second electromagnetic
effect and a third electromagnetic effect are generated, wherein the second magnetic flux is generated by the first transmitter
coil according to the second electromagnetic effect, and the third magnetic flux is generated by the second transmitter coil
according to the third electromagnetic effect, so that the second magnetic flux and the third magnetic flux are transmitted
from the wireless power transmission device to the receiver coil.

US Pat. No. 9,214,300

KEYBOARD DEVICE WITH LUMINOUS KEY

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:
at least one luminous key exposed to a top surface of said keyboard device, wherein each of said at least one luminous key
has a first light-outputting zone;

a membrane switch circuit member disposed under said at least one luminous key, wherein when said membrane switch circuit
member is triggered by said at least one luminous key, said membrane switch circuit member generates at least one luminous
key signal, wherein said membrane switch circuit member comprises:

an upper wiring board having at least one upper contact:
a partition plate disposed under said upper wiring board, and having at least one first perforation corresponding to said
at least one upper contact, wherein when said membrane switch circuit member is depressed, said at least one upper contact
is inserted into said at least one first perforation; and

a lower wiring board disposed under said partition plate, and having at least one lower contact corresponding to said at least
one upper contact, wherein said at least one upper contact and said at least one lower contact are collectively defined as
said at least one key intersection;

at least one first light-emitting element disposed under said at least one luminous key for emitting at least one first light
beam, wherein said at least first light beam is directed to said corresponding first light-outputting zone;

a first light shade connected with said membrane switch circuit member, and disposed under said at least one luminous key
for shading said at least first light beam, wherein said first light shade and said membrane switch circuit member are integrally
formed with each other; and

a backlight module, which is disposed under said at least one luminous key for emitting at least one second light beam, wherein
said at least one second light beam is directed to a second light-outputting zone of said at least one luminous key, wherein
said backlight module comprises:

a flexible circuit board with said membrane switch circuit member;
at least one second light-emitting element disposed on said flexible circuit board for emitting said at least one second light
beam, wherein said at least one second light beam is directed to said membrane switch circuit member; and

a second light shade connected with said membrane switch circuit member for shading said at least one second beam, wherein
said second light shade and said membrane switch circuit member are integrally formed with each other.

US Pat. No. 9,143,864

AUDIO PLAYBACK SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. An audio playback system, comprising:
a handheld device comprising a first transmitting terminal controller, wherein the first transmitting terminal controller
comprises:

a first speaker; and
a first sound wave signal generator for converting a control message into a first modulation signal, and transmitting the
first modulation signal to the first speaker, thereby controlling the first speaker to generate a first modulated sound wave
signal; and

a digital stereo set comprising a host and a sound box for playing a digital audio file, wherein the digital stereo set further
comprises a first receiving terminal controller, and the first receiving terminal controller comprises:

a first microphone for receiving the first modulated sound wave signal; and
a first sound wave signal reader for restoring the first modulated sound wave signal to the control message,
wherein after the control message is received by the digital stereo set, the digital stereo set performs a corresponding control
action according to the control message.

US Pat. No. 9,384,918

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
a key structure, wherein when said key structure is depressed, a key signal is correspondingly triggered; and
a backlight membrane switch board for generating said key signal and emitting a light beam to said key structure, wherein
said backlight membrane switch board comprises:

a light source for emitting said light beam;
a light guide plate for transferring said light beam, wherein said light guide plate comprises a first circuit layer;
a wiring plate comprising a second circuit layer and a light source circuit layer, wherein said light source circuit layer
is electrically connected with said light source for driving said light source; and

a partition plate arranged between said light guide plate and said wiring plate, wherein as said key structure is depressed,
said first circuit layer of said light guide plate and said second circuit layer of said wiring plate are contacted with each
other to generate said key signal.

US Pat. No. 9,171,197

FACIAL TRACKING METHOD

PRIMAX ELECTRONICS LTD., ...

1. A facial tracking method for detecting and tracking plural face images within a specified region in a set time period,
said facial tracking method comprising steps of:
performing an image acquiring operation for continuously shooting said specified region at the same viewing angle, thereby
acquiring plural photo images;

performing a first facial detecting operation for extracting a current photo image from said plural photo images, and detecting
whether there is any face image in the entire of said current photo image, wherein if a first face image is included in said
current photo image, a first facial data corresponding to said first face image is recorded into a database; and

performing a first facial tracking operation for determining whether said first face image exists in a next photo image, which
is posterior to said current photo image, wherein said step of performing said first facial tracking operation comprises sub-steps
of locating plural first tracking frames in said current photo image by taking a first face frame including said first face
image as a center, extracting said next photo image, calculating plural similarities between images included in said next
photo image corresponding to said plural first tracking frames and said image included in said first face frame, and detecting
whether there is any face image in said next photo image corresponding to said first tracking frame with the highest similarity
relative to said image included in said first face frame, wherein if a face image is included in said next photo image corresponding
to said first tracking frame with the highest similarity, said face image is recognized as said first face image, and said
first facial data is updated according to information corresponding to said first tracking frame with the highest similarity,
wherein if no face image is included in said next photo image corresponding to said first tracking frame with the highest
similarity, said first face image is considered to be excluded from said next photo image, and said first facial data is updated,

wherein said first facial data comprises a position of said first face image in each photo image, a tracking state of said
first face image in each photo image, the number of said photo images said first face image exists, a facial texture of said
first face image, and a color feature of a specified part under said first face image, wherein said tracking state includes
a continuous tracking state, a lost tracking state or a stop tracking state, wherein if said first face image exists in a
specified photo image, said first face image is in said continuous tracking state, wherein if said first face image does not
exist in said specified photo image, said first face image is in said lost tracking state, wherein if said first face image
does not exist in several consecutive photo images, said first face image is in said stop tracking state,

wherein after said first facial tracking operation is performed, said facial tracking method further comprises a step of performing
a second facial tracking operation for determining whether said first face image exists in a subsequent photo image, which
is posterior to said next photo image, wherein if no face image is included in said next photo image corresponding to said
first tracking frame with the highest similarity, said step of performing said second facial tracking operation comprises
sub-steps of:

extracting said subsequent photo image;
locating a second tracking frame with a local area in said subsequent photo image, wherein a center of said local area is
corresponding to said first face frame of said current photo image;

detecting whether there is any face image in said second tracking frame of said subsequent photo image;
if no face image is included in said second tracking frame, confirming that said first face image is not included in said
subsequent photo image, and further judging whether the number of times said first face image is in said lost tracking state
is larger than a second threshold value, wherein if the number of times said first face image is in said lost tracking state
is larger than a second threshold value, said first face image is no longer searched from remaining photo images;

if a face image is included in said second tracking frame, calculating a facial texture similarity between said first face
image and said face image included in said second tracking frame;

if said facial texture similarity between said first face image and said face image included in said second tracking frame
is larger than a third threshold value, confirming that said first face image and said face image included in said second
tracking frame belong to the same person, and updating said first facial data according to information corresponding to said
second tracking frame;

if said facial texture similarity between said first face image and said face image included in said second tracking frame
is smaller than said third threshold value, confirming that said first face image is not included in said subsequent photo
image, and judging whether the number of times said first face image is in said lost tracking state is larger than said second
threshold value, wherein if the number of times said first face image is in said lost tracking state is larger than said second
threshold value, said first face image is no longer searched from said remaining photo images; and

if said facial texture similarity between said first face image and said face image included in said second tracking frame
is smaller than said third threshold value, confirming that said face image included in said second tracking frame is a third
face image different from said first face image, and recording a third facial data of said third face image into said database.

US Pat. No. 9,142,976

WIRELESS POWER TRANSMISSION DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A wireless power transmission device for use with a vehicular operating platform to transmit electric power to a closed
receiver coil of an electronic device, said wireless power transmission device comprising:
a main body disposed on said vehicular operating platform for supporting said electronic device thereon, wherein said main
body comprises:

a closed transmitter coil disposed within said main body, wherein when said closed transmitter coil is electrically conducted,
said closed transmitter coil results in an electromagnetic effect, wherein in response to said electromagnetic effect, said
electric power is generated and transmitted to said closed receiver coil;

a contacting surface to be contacted with said electronic device;
a first sidewall located at a first side of said contacting surface for supporting said electronic device, so that said electronic
device is contacted with said contacting surface; and

a triggering button disposed on said first sidewall, wherein when said electronic device is contacted with said contacting
surface, said triggering button is triggered to issue an enabling signal; and

a position-limiting plate located at a second side of said main body and movable relative to said main body, wherein when
said enabling signal is received by said position-limiting plate, said position-limiting plate is moved toward said main body,
so that said electronic device is fixed on said contacting surface, wherein when said triggering button stops issuing said
enabling signal, said position-limiting plate is moved away from said main body and separated from said electronic device.

US Pat. No. 9,213,417

KEYBOARD DEVICE WITH LUMINOUS KEY

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:
at least one luminous key comprising at least one keycap and at least one elastic element, wherein each of said at least one
keycap has a first light-outputting zone, wherein said at least one elastic element is disposed under said at least one keycap
and contacted with said at least one keycap for providing an elastic force to said at least one keycap;

at least one top-view light-emitting element disposed under said corresponding first light-outputting zone for emitting at
least one first light beam, wherein said at least one first light beam is transmitted through said corresponding first light-outputting
zone;

at least one light shade connected with said at least one elastic element, and disposed over said at least one top-view light-emitting
element, wherein each of said at least one light shade has a light-outputting part, wherein said at least one first light
beam is shaded by said at least one light shade, but said at least one first light beam is permitted to be transmitted through
said corresponding light-outputting part and directed to said corresponding first light-outputting zone, wherein said at least
one light shade and said at least one elastic element are integrally formed with each other; and

a membrane switch circuit member, which is disposed under said at least one elastic element, wherein said membrane switch
circuit member has at least one key intersection corresponding to said at least one luminous key, wherein said membrane switch
circuit member comprises:

an upper wiring board having at least one upper contact;
a partition plate disposed under said upper wiring board, and having at least one first perforation corresponding to said
at least one upper contact, wherein when said membrane switch circuit member is depressed, said at least one upper contact
is inserted into said at least one first perforation; and

a lower wiring board disposed under said partition plate, and having at least one lower contact corresponding to said at least
one upper contact, wherein said at least one upper contact, said at least one first perforation and said at least one lower
contact are collectively defined as said at least one key intersection,

wherein said partition plate further comprises at least one second perforation, wherein said at least one second perforation
is disposed under said at least one light shade, and at least one top-view light-emitting element is disposed on said lower
wiring board and inserted into said at least one second perforation, wherein said least one first light beam from said at
least one top-view light-emitting element is transmitted through said at least one second perforation, said upper wiring board
and said corresponding light-outputting part and directed to said corresponding first light-outputting zone.

US Pat. No. 9,141,203

KEY FREE MOUSE DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A mouse device, comprising:
an upper cover comprising two protrusion posts and two first pivotal parts, wherein the two protrusion posts and the two first
pivotal parts are disposed on an inner surface of the upper cover;

an intermediate cover disposed under the upper cover, and comprising two perforations and two second pivotal parts, wherein
the two protrusion posts are respectively penetrated through the two perforations, wherein the two second pivotal parts are
respectively connected with the two first pivotal parts, so that the upper cover is rotatable relative to the intermediate
cover;

two elastic elements arranged between the intermediate cover and the upper cover for returning the upper cover to an original
position, wherein the two elastic elements are arranged between the two perforations and a rear end of the intermediate cover;

a lower cover disposed under the intermediate cover, and connected with the intermediate cover;
a circuit board disposed over the lower cover, and arranged between the intermediate cover and the lower cover; and
two switches disposed on the circuit board,
wherein when the upper cover is rotated relative to the intermediate cover in a first direction or a second direction, the
corresponding switch is triggered by the corresponding protrusion post so as to generate a corresponding electronic signal.

US Pat. No. 9,142,370

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
at least one keycap including a conductive structure;
at least one light-emitting element for providing a light beam to said keycap;
a light guide plate for transferring said light beam from said light-emitting element;
a sensing circuit layer disposed under said light guide plate and including at least one pair of first electrode layer and
second electrode layer, between which an electric field is generated; and

at least one keycap guiding frame disposed on said light guide plate for connecting said keycap and said light guide plate,
wherein said keycap guiding frame is disposed and in contact with said keycap for guiding a movement of said keycap,

wherein said pair of first and second electrode layers of said sensing layer aligns with said conductive structure of said
keycap, and in response to said movement of said keycap along said keycap guiding frame toward said sensing circuit layer,
said electric field changes so as to have a non-contact key signal generated from said sensing circuit layer.

US Pat. No. 9,093,236

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
a membrane switch circuit module for generating plural key switch signals, wherein the membrane switch circuit module comprises
a first opening;

plural keys disposed over the membrane switch circuit module, wherein when one of the plural keys is depressed, the membrane
switch circuit module generates a corresponding key switch signal, wherein the plural keys comprise plural keycaps, respectively;

a sensing circuit disposed on the membrane switch circuit module;
an illumination circuit board;
at least one light-emitting element disposed on the illumination circuit board; and
a sensing chip disposed on the illumination circuit board,
wherein the sensing chip is penetrated through the first opening and electrically connected with the sensing circuit, wherein
the sensing chip is disposed under one of the plural keycaps for sensing a presence of an object.

US Pat. No. 9,814,148

WEARABLE ELECTRONIC DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A wearable electronic device, comprising:
a ring-shaped main body;
plural receiving parts separated from each other and disposed within the ring-shaped main body, wherein each of the plural
receiving parts comprises an opening, and the opening is formed in an inner surface of the ring-shaped main body;

a wiring board integrally formed within the ring-shaped main body and in communication with the plural receiving parts;
plural circuit boards detachably disposed within the corresponding receiving parts and connected with the wiring board, wherein
one of the plural circuit boards is aligned with the corresponding opening, and introduced into the corresponding receiving
part through the corresponding opening, wherein each of the plural circuit boards comprises a connection part, and the connection
part is connected with the wiring board; and

plural bottom covers detachably disposed within the ring-shaped main body, wherein one of the plural bottom covers is aligned
with the corresponding opening to shelter a top side of the corresponding circuit board.

US Pat. No. 9,414,112

TIME SYNCHRONIZATION METHOD AND SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A time synchronization method for synchronizing a first playing device and a second playing device of an area network,
the area network comprising a base station, the first playing device having a first system clock, the second playing device
having a second system clock, the time synchronization method comprising steps of:
(A) transmitting a packet from the first playing device to the base station;
(B) transmitting the packet from the base station to the first playing device and the second playing device;
(C) after the packet is received by the second playing device, obtaining an update time by adding an error value to a system
time of the second system clock or subtracting the error value from the system time of the second system clock, wherein the
error value is a time difference between a time point of transmitting the packet from the first playing device to the base
station and a time point of receiving the packet from the base station by the second playing device;

(D) judging whether plural first difference values are all smaller than a first predetermined value, wherein if the plural
first difference values are all smaller than the first predetermined value, a step (E) is performed, wherein each of the first
difference values is a time difference between a time point of transmitting the same packet of plural consecutive packets
from the first playing device to the base station and a time point of receiving the packet by the second playing device, wherein
a system time of the first system clock is used by the first playing device, and the update time is used by the second playing
device;

(E) calculating plural second difference values, and judging whether the plural second difference values are all smaller than
a second predetermined value, wherein if one of the plural second difference values is smaller than the second predetermined
value, a step (F) is performed, wherein each of the second difference values is a time difference between time points of receiving
the same packet from the base station by the first playing device and the second playing device, wherein the system time of
the first system clock is used by the first playing device, and the update time is used by the second playing device; and

(F) obtaining a synchronization time by adding the second difference value to the update time or subtracting the second difference
value from the update time, so that the system time of the first system clock and the synchronization time are synchronized
with each other.

US Pat. No. 9,270,136

CHARGING CONTROL CIRCUIT

PRIMAX ELECTRONICS LTD., ...

1. A charging control circuit installed in an electronic device and connected with a chargeable battery of the electronic
device for charging the chargeable battery, the charging control circuit comprising:
a charging module connected with the chargeable battery, and providing a charging current to the chargeable battery so as
to charge the chargeable battery;

a switch element connected with the charging module, wherein when the switch element is turned on, a control current is outputted
from the switch element to the charging module;

a load detecting element connected with the chargeable battery, wherein the load detecting element issues a load range signal
according to a voltage drop of the chargeable battery; and

an adjusting element connected with the switch element and the load detecting element, wherein the adjusting element issues
a control voltage to the switch element according to the load range signal, so that a magnitude of the control current from
the switch element is correspondingly adjusted, wherein as the voltage drop increases, the charging current increases.

US Pat. No. 9,682,465

MAGAZINE TYPE SCREWING DEVICE AND SCREW SUPPLEMENT DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A magazine type screwing device, comprising:
a screwdriver bit comprising a protrusion part, wherein at least one screw is tightened into an object by the screwdriver
bit;

a storing portion accommodating the screwdriver bit and the at least one screw, wherein the storing portion comprises a tubular
structure and a slide rail, wherein the tubular structure comprises an opening, and the screwdriver bit is installed in the
tubular structure and movable within the tubular structure back and forth, wherein the slide rail is connected with the tubular
structure, a distal end of the slide rail is located near the opening, and the at least one screw is disposed within the slide
rail and movable within the slide rail; and

a screw stopping portion limiting movement of the at least one screw, wherein the screw stopping portion comprises a rotating
shaft, a first hook-shaped element, a first swinging block, a second hook-shaped element and a second swinging block, wherein
the rotating shaft is disposed on the tubular structure, the first hook-shaped element is pivotally coupled to the rotating
shaft and rotatable relative to the slide rail, the first swinging block is pivotally coupled to the first hook-shaped element
and inserted into the tubular structure, the second hook-shaped element is pivotally coupled to the rotating shaft and rotatable
relative to the slide rail, and the second swinging block is pivotally coupled to the second hook-shaped element and inserted
into the tubular structure,

wherein when the screwdriver bit is in a standby position, the first hook-shaped element and the second hook-shaped element
are contacted with the slide rail to stop the at least one screw, wherein when the screwdriver bit is moved in a first direction
and the first swinging block is pushed by the protrusion part, the first hook-shaped element is pushed by the first swinging
block to be moved away the slide rail, so that a specified screw of the at least one screw is moved to a region between the
first hook-shaped element and the second hook-shaped element, wherein when the screwdriver bit is moved in a second direction
and the second swinging block is pushed by the protrusion part, the second hook-shaped element is pushed by second swinging
block to be moved away the slide rail, so that the specified screw is introduced from the distal end of the slide rail to
the tubular structure through the opening.

US Pat. No. 10,025,969

FINGERPRINT IDENTIFICATION MODULE AND MANUFACTURING METHOD THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A fingerprint identification module, comprising:a substrate comprising plural electrical contacts;
a sensing die attached on the substrate and electrically connected with the substrate so as to sense a fingerprint image;
a mold compound layer formed on the substrate, and encapsulating the sensing die, wherein the plural electrical contracts are exposed outside the mold compound layer;
a circuit board comprising plural connection pads, wherein the circuit board and the substrate are electrically connected with each other through the plural connection pads and the plural electrical contacts, and the substrate and the circuit board are not integrally formed with each other;
a connector disposed on the circuit board, and connected with an external electronic device; and
a chip disposed on the circuit board for filtering off noise of the fingerprint image.

US Pat. No. 9,620,306

MAGNETIC KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A magnetic keyboard, comprising:
a base;
a switch circuit board disposed on the base, wherein when the switch circuit board is triggered, a corresponding key signal
is generated; and

plural keys connected with the base, wherein each of the plural keys comprises:
a keycap;
plural first magnetic elements connected with an inner surface of the keycap, wherein each of the first magnetic elements
has an upper portion and a lower portion, and the upper portion and the lower portion of the first magnetic element have opposite
poles; and

plural second magnetic elements connected with the base, wherein each of the second magnetic elements has an upper portion
and a lower portion, and the upper portion and the lower portion of the second magnetic element have opposite poles, wherein
the upper portion of the first magnetic element and the upper portion of the second magnetic element have like poles, and
the lower portion of the first magnetic element and the lower portion of the second magnetic element have like poles, wherein
the first magnetic element is inserted into the second magnetic element, so that the lower portion of the first magnetic element
is magnetically attracted by the upper portion of the second magnetic element, and

wherein the switch circuit board further comprises plural first openings corresponding to the plural keys, wherein the second
magnetic elements are partially accommodated within the corresponding first openings.

US Pat. No. 9,651,613

CIRCUIT BOARD TESTING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A circuit board testing system, comprising:
a computer system; and
a testing fixture connected with a circuit board and the computer system, and acquiring a real voltage value of an electronic
component of the circuit board, wherein the testing fixture comprises:

a contact element disposed on the testing fixture and contacted with the electronic component of the circuit board;
a switching circuit connected with the contact element;
a connection module connected with the connected with the switching circuit and the circuit board, wherein the circuit board
and the computer system are connected with each other through the connection module, so that the computer system is in communication
with the circuit board and an electric power is transmitted from the computer system to the circuit board through the connection
module; and

a data acquisition unit electrically connected with the switching circuit and the computer system, and providing a start voltage
to the switching circuit, thereby enabling the connection module and acquiring the real voltage value of the electronic component,
wherein the data acquisition unit comprises a digital output pin and an analog input pin, wherein the digital output pin is
connected with the switching circuit and outputs the start voltage to the switching circuit, wherein the analog input pin
is connected with the electronic component and acquires the real voltage value of the electronic component, wherein after
the real voltage value is acquired by the analog input pin, the real voltage value is transmitted from the data acquisition
unit to the computer system, so that computer system judges whether the circuit board is qualified according to the real voltage
value, wherein the connection module comprises:

a power supply circuit connected with the switching circuit, the computer system and the circuit board, wherein when the power
supply circuit is enabled, the electric power is transmitted from the computer system to the circuit board through the power
supply circuit; and

a communication circuit connected with a driving circuit, the computer system and the circuit board, wherein when the communication
circuit is enabled, a computer communication protocol information of the computer system is transmitted to the circuit board
through the communication circuit, and a device communication protocol information of the circuit board is transmitted to
the computer system through the communication circuit; and wherein the power supply circuit comprises:

a first light emitter, wherein a first input terminal of the first light emitter is connected with the data acquisition unit,
a second input terminal of the first light emitter is connected with a ground terminal, and the first light emitter emits
a first light beam in response to the start voltage;

a first metal-oxide-semiconductor field-effect transistor, wherein a first output terminal of the first metal-oxide-semiconductor
field-effect transistor is connected with a first transmission pin of the computer host, and a second output terminal of the
first metal-oxide-semiconductor field-effect transistor is connected with a first signal contact of the circuit board, wherein
when the first light beam is received by the first metal-oxide-semiconductor field-effect transistor, the first metal-oxide-semiconductor
field-effect transistor is closed, so that the power supply circuit is enabled;

wherein the communication circuit comprises:
a second light emitter, wherein a third input terminal of the second light emitter is connected with the data acquisition
unit, a fourth input terminal of the second light emitter is connected with the ground terminal, arid the second light emitter
emits a second light beam in response to the start voltage;

a second metal-oxide-semiconductor field-effect transistor, wherein a third output terminal of the second metal-oxide-semiconductor
field-effect transistor is connected with a second transmission pin of the computer host, and a fourth output terminal of
the second metal-oxide-semiconductor field-effect transistor is connected with a second signal contact of the circuit board,
wherein when the second light beam is received by the second metal-oxide-semiconductor field-effect transistor, the second
metal-oxide-semiconductor field-effect transistor is closed;

a third light emitter, wherein a fifth input terminal of the third light emitter is connected with the data acquisition unit,
a sixth input terminal of the third light emitter is connected with the ground terminal, and the third light emitter emits
a third light beam in response to the start voltage; and

a third metal-oxide-semiconductor field-effect transistor, wherein a fifth output terminal of the third metal-oxide-semiconductor
field-effect transistor is connected with a third transmission pin of the computer host, and a sixth output terminal of the
third metal-oxide-semiconductor field-effect transistor is connected with a third signal contact of the circuit board, wherein
when the third light beam is received by the third metal-oxide-semiconductor field-effect transistor, the third metal-oxide-semiconductor
field-effect transistor is closed, wherein when both of the second metal-oxide-semiconductor field-effect transistor and the
third metal-oxide-semiconductor field-effect transistor are closed, the communication circuit is enabled, so that the computer
communication protocol information is transmitted to the circuit board and the device communication protocol information is
transmitted to the computer system.

US Pat. No. 9,627,158

KEYBOARD KEY USING AN ASYMMETRIC SCISSOR-TYPE CONNECTING ELEMENT

PRIMAX ELECTRONICS LTD., ...

1. A keyboard module, comprising:
a bottom plate;
a first key disposed on the bottom plate, and comprising a first keycap and a first scissors-type connecting element, wherein
the first scissors-type connecting element is connected with the bottom plate and the first keycap, and comprises a first
outer frame and a first inner frame; and

a second key disposed on the bottom plate, and comprising a second keycap and a second scissors-type connecting element, wherein
the second scissors-type connecting element is connected with the bottom plate and the second keycap, and comprises a second
outer frame and a second inner frame,

wherein the first outer frame of the first scissors-type connecting element is symmetrical, and the second outer frame of
the second scissors-type connecting element is asymmetrical.

US Pat. No. 9,653,231

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a sensing membrane wiring board comprising a sensing circuit pattern formed on said sensing membrane wiring board for generating
at least one non-contact key signal;

at least one key, wherein when said at least one key is depressed, said at least one non-contact key signal is correspondingly
generated by said sensing circuit pattern;

a lateral-emitting type illumination element for providing a light beam;
a light guide panel, wherein said lateral-emitting type illumination element is located at a lateral side of said light guide
panel, and said light guide panel has at least one light-guiding dot for collecting and scattering said light beam from said
lateral-emitting type illumination element;

a supporting plate for connecting and supporting said at least one key, wherein said supporting plate has at least one light-transmissible
part corresponding to said at least one key; and

a light-transmissible substrate arranged between said supporting plate and said light guide panel, wherein said light-transmissible
substrate comprises at least one light diffusion structure corresponding to said at least one key for changing an optical
path of said light beam from said at least one light-guiding dot, so that said light beam from said at least one light-guiding
dot is sequentially transmitted through said at least one light diffusion structure and said at least one light-transmissible
part and then directed to said at least one key;

wherein said sensing membrane wiring board is arranged between said light guide panel and said supporting plate;
wherein said at least one light diffusion structure comprises plural microstructures, and said plural microstructures are
formed on said light-transmissible substrate; or

wherein said at least one light diffusion structure is at least one lens, and said at least one lens is formed on said light-transmissible
substrate; or

wherein said at least one light diffusion structure has a lens profile, and said at least one light diffusion structure is
integrally formed with said light-transmissible substrate.

US Pat. No. 9,214,293

KEY STRUCTURE WITH SCISSORS-TYPE CONNECTING MEMBER

PRIMAX ELECTRONICS LTD., ...

1. A key structure with a scissors-type connecting member, the key structure comprising:
a base plate;
a keycap disposed over the base plate, wherein when the keycap is depressed, the keycap is moved relative to the base plate;
the scissors-type connecting member arranged between the base plate and the keycap for connecting the base plate with the
keycap, thereby allowing the keycap to be moved upwardly or upwardly respective to the base plate, wherein the scissors-type
connecting member comprises:

a first frame comprising a first sidewall, wherein a first end of the first sidewall is connected with the keycap, and a second
end of the first sidewall is connected with the base plate, wherein a first segment of the first sidewall is thinner than
a second segment of the first sidewall, wherein the first segment is closer to the first end of the first sidewall, and the
second segment is closer to the second end of the first sidewall; and

a second frame pivotally coupled to the first frame, wherein the second frame is rotatable relative to the first frame by
using a pivotal point between the first frame and the second frame as a rotating shaft, wherein the second frame comprises
a second sidewall, a first end of the second sidewall is connected with the base plate, and a second end of the second sidewall
is connected with the keycap, wherein a third segment of the second sidewall is thicker than a fourth segment of the second
sidewall, wherein the third segment is closer to the first end of the second sidewall, and the fourth segment is closer to
the second end of the second sidewall,

wherein the pivotal point is defined by a first convex part of the first frame and a second convex part of the second frame
collaboratively, wherein the first frame further comprises a first receiving recess for receiving the second convex part,
and the first convex part and the first receiving recess are both disposed on the first sidewall, wherein the second frame
further comprises a second receiving recess for receiving the first convex part, and the second convex part and the second
receiving recess are both disposed on the second sidewall, wherein after the first convex part is inserted into the second
receiving recess and the second convex part is inserted into the first receiving recess, the first frame and the second frame
are connected with each other and rotatable relative to each other, wherein when the first frame and the second frame are
connected with each other, the first convex part is moved within the second receiving recess, and the second convex part is
moved within the first receiving recess; and

an elastic element arranged between the base plate and the keycap and penetrated through the scissors-type connecting member,
wherein the elastic element is contacted with the keycap and provides an elastic force to the keycap, wherein a segment of
the scissors-type connecting member closer to the keycap is thinner than a segment of the scissors-type connecting member
closer to the base plate, so that when the keycap is not depressed, the scissors-type connecting member is bent.

US Pat. No. 9,799,465

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:
a base;
a triggering element, wherein the triggering element is triggered in response to an external force;
a keycap disposed over the triggering element, wherein the keycap comprises a hook structure disposed on a bottom surface
of the keycap and when the external force is applied to the keycap, the triggering element is pushed by the keycap; and

a scissors-type connecting element connected with the keycap and the base, and comprising:
a first frame having a first end connected with the keycap and a second end connected with the base, wherein the first frame
comprises a first keycap post, a first base post and a bulge, wherein the first keycap post is located at the first end of
the first frame, protruded from a sidewall of the first frame, and connected with the hook structure of the keycap, wherein
the first base post is located at the second end of the first frame, and connected with the base, wherein the bulge is externally
extended from the first end of the first frame and formed on a first side of the first keycap post, and the bulge is protruded
from the sidewall of the first frame; and

a second frame combined with the first frame, wherein a first end of the second frame is connected with the base, and a second
end of the second frame is connected with the keycap.

US Pat. No. 9,329,707

INPUT DEVICE

PRIMAX ELECTRONICS LTD., ...

1. An input device, comprising:
an operation element defined with an optical sensing region, where a moving operation and/or a pressing operation of a finger
can be sensed;

an optical finger navigation module disposed under the optical sensing region for sensing the moving operation of the finger
on the optical sensing region so as to generate a motion signal;

a press sensing circuit;
at least one press sensing element disposed under the optical finger navigation module and electrically connected to the press
sensing circuit to generate a press signal in response to the pressing operation of the finger on the operation element;

a control unit connected with the optical finger navigation module and the press sensing circuit to generate a first control
command in response to the motion signal, and generate a second control command in response to the press sensing signal;

a circuit board;
a substrate disposed under the substrate for supporting the substrate, the circuit board and the operation element, the elastic
supporting element has at least one rubber projection, and the at least one rubber projection is disposed under and aligned
with the at least one press sensing element;

wherein the press sensing circuit is formed on a bottom surface of the circuit board, and the at least one press sensing element
is disposed on the top surface of the substrate, and when a portion of the operation element is pressed with a force larger
than a predetermined level, the operation element, the circuit board and the substrate are jointly moved in a corresponding
direction in response to the force, so that the substrate is thrust by the at least one rubber projection and the impedance
of the at least one press sensing element varies with a level of the pressing operation of the finger on the operation element,
and thereby, the press sensing circuit generates the press signal accordingly.

US Pat. No. 9,092,074

MOUSE DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A mouse device, comprising:
an upper cover;
a lower cover connected with said upper cover, and comprising an elongated slot;
a circuit board fixed between said upper cover and said lower cover;
a first switch and a second switch disposed on a bottom surface of said circuit board; and
a triggering element disposed within said elongated slot and protruded through a bottom side of said lower cover, and comprising
a first triggering part and a second triggering part, wherein said first triggering part is located at a first end of said
triggering element, said second triggering part is located at a second end of said triggering element, and said triggering
element is pivotally coupled to said lower cover, so that said lower cover is rotatable relative to said triggering element,

wherein when a first side of said upper cover is depressed, said upper cover, said lower cover and said circuit board are
rotated in a first direction, and said first triggering part is pushed by said first switch, wherein when a second side of
said upper cover is depressed, said upper cover, said lower cover and said circuit board are rotated in a second direction,
and said second triggering part is pushed by said second switch,

wherein said lower cover further comprises a recess, and said triggering element further comprises a rotating shaft, wherein
said rotating shaft is located at a middle region of said triggering element and disposed within said recess, so that said
lower cover is rotatable relative to said triggering element.

US Pat. No. 9,798,373

CONTROLLING METHOD OF COMPUTER SCREEN AND COMPUTER SYSTEM USING THE SAME

PRIMAX ELECTRONICS LTD., ...

1. A controlling method of a computer screen, comprising steps of:
(a) capturing an image; and
(b) detecting whether the image has a skin color distribution region, wherein if an accumulative time length that no skin
color distribution region is contained in the image is longer than a predetermined time length, a hibernation mode of the
computer screen is enabled, wherein the step (b) further comprises a step of recognizing whether the image contains a blue-difference
chroma component Cb of a YCbCr color space in the range between 97.5 and 142.5 and a red-difference chroma component Cr of
the YCbCr color space in the range between 134 and 176, wherein if the image contains the blue-difference chroma component
Cb of the YCbCr color space in the range between 97.5 and 142.5 and the red-difference chroma component Cr of the YCbCr color
space in the range between 134 and 176, the image has the skin color distribution region.

US Pat. No. 9,740,256

ELECTRICAL DEVICE WITH DETACHABLE STORAGE MODULE

PRIMAX ELECTRONICS LTD., ...

1. An electrical device with a detachable storage module, the electrical device comprising:
a main body generating a data, and comprising:
a first data storage unit storing the data;
a first battery unit providing a first electric power; and
a controlling module electrically connected with the first data storage unit, the first battery unit and the detachable storage
module; and

the detachable storage module comprising:
a second data storage unit storing the data from the main body; and
a second battery unit providing a second electric power to the main body,
wherein the controlling unit is operable in plural storing modes, wherein according to a selected storing mode of the plural
storing modes, the controlling unit determines whether the data is stored in the first data storage unit or the second data
storage unit,

wherein when the detachable storage module is in communication with a charging dock, a third electric power is tranmitted
from the charging dock to the detachable storage module so as to charge the second battery unit, wherein the data in the second
data storage unit is further transmitted from the detachable storage module to the charging dock.

US Pat. No. 9,632,133

CIRCUIT BOARD TESTING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A circuit board testing system, comprising:
a testing fixture, wherein the testing fixture comprises:
a plurality of contact elements, each being provided for electric connection to one electronic component to be tested;
a switching circuit connected with each of the contact elements, and turned on in response to a start voltage, wherein the
switching circuit comprises:

a first fixed resistor corresponding to a first electronic component to be tested;
a second fixed resistor corresponding to a second electronic component to be tested;
a double-pole-double-throw relay, wherein a first normally closed terminal of the double pole-double-throw relay is connected
with the first fixed resistor, and a second normally closed terminal of the double-pole-double-throw relay is connected with
the second fixed resistor; and

a driving circuit connected with the double-pole-double-throw relay, wherein the double-pole-double-throw relay is enabled
by the driving circuit in response to the start voltage, wherein when the double-pole-double-throw relay is enabled, the first
electronic component and the first fixed resistor are collaboratively defined as a first equivalent circuit, and the second
electronic component and the second fixed resistor are collaboratively defined as a second equivalent circuit; and

a data acquisition unit electrically connected with driving circuit of the switching circuit for providing the start voltage
to turn on the switch circuit and providing a test voltage to each of the electronic components electrically connected to
the contact elements via the turned-on switching circuit, thereby acquiring a real voltage value of each of the electronic
components, wherein the data acquisition unit comprises a digital output pin for outputting the start voltage, an analog output
pin for outputting the test voltage, and an analog input pin for acquiring the real voltage value of the electronic component,
wherein the digital output pin of the data acquisition unit is connected with the driving circuit and outputs the start voltage
to the driving circuit, so that the double-pole-double-throw relay is in a close state, wherein the analog output pin of the
data acquisition unit is connected with the first fixed resistor and the second fixed resistor, the first electronic component
and the first fixed resistor are collaboratively defined as the first equivalent circuit, and the second electronic component
and the second fixed resistor are collaboratively defined as the second equivalent circuit, so that the analog input pin of
the data acquisition unit acquires a first real voltage value from the first equivalent circuit and acquires a second real
voltage value from the second equivalent circuit; and

a computer system electrically connected with the testing fixture for converting the real voltage value into a real impedance
value corresponding to the electronic component, wherein the computer system comprises:

a computer host connected with the data acquisition unit, wherein a first default impedance range and a second default impedance
range are previously stored in the computer host, wherein according to the first and second default impedance range, the computer
host judges whether the first and second electronic elements are qualified or not; and

a display screen connected with the computer host and showing a test result of the circuit board, wherein after the first
real voltage value and the second real voltage value are received by the computer host, the computer host judges whether the
first real voltage value and the second real voltage value are within the default impedance range or not, wherein if the first
real voltage value is not within the first default impedance range, the computer host determines that the first electronic
component is unqualified, and if the second real voltage value is not within the second default impedance range, the computer
host determines that the second electronic component is unqualified.

US Pat. No. 9,779,011

TESTING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A testing system, which performs a testing operation on a tested target and transfers function data corresponding to a
testing history information of the testing operation to a server, comprising:
a testing host, which executes a testing program to perform a testing operation on the tested target and to generate the testing
history information, wherein the tested target is an electronic device or an electronic element of an electronic device, wherein
the testing program is compiled by using a first specification program language, and wherein the testing host changes a file
name of the testing history information according to a renaming rule, and the file name comprises testing content information
of the testing history information; and

a relay host, which generates and transfers the function data corresponding to the testing history information to the server,
wherein the relay host executes a transferring and processsing program to generate the function data according to the testing
content information in the file name and transfers the function data to the host, wherein the function data is defined by
at least one default function installed in the relay host and is compiled by using a second specification program language
and the transferring and processing program supports the second specification program language.

US Pat. No. 9,620,307

KEYBOARD CIRCUIT EMPLOYING DIODES

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:
plural keys;
a membrane key switch module disposed under the plural keys, wherein when the membrane key switch module is depressed by the
plural keys, plural key signals are correspondingly generated, wherein the membrane key switch module comprises:

an upper wiring plate comprising plural upper contacts, wherein the plural upper contacts are disposed on a bottom surface
of the upper wiring plate;

a lower wiring plate comprising plural lower contacts, wherein the plural lower contacts are disposed on a top surface of
the lower wiring plate, and the plural lower contacts are disposed under the corresponding upper contacts, wherein when the
plural lower contacts and the corresponding upper contacts are contacted with each other, the corresponding key signals are
generated; and

a spacer layer arranged between the upper wiring plate and the lower wiring plate, wherein the plural upper contacts and the
plural lower contacts are separated from each other by the spacer layer; and

plural diodes disposed on the bottom surface of the upper wiring plate, wherein each diode is electrically connected with
one corresponding upper contact, so that a current is allowed to pass through the corresponding upper contact in one direction.

US Pat. No. 9,817,030

TESTING DEVICE FOR TESTING AN UNDER-TEST OBJECT

Primax Electronics Ltd., ...

1. A testing device for testing an under-test object, an electrical contact being formed on the under-test object, the testing
device comprising:
a base body;
a holder disposed on the base body, wherein the under-test object is supported by the holder;
an electrically conductive plate disposed on the base body and located over the holder, wherein the electrically conductive
plate is movable relative to the base body so as to be close to or far away from the holder, wherein the electrically conductive
plate has an opening, wherein the opening runs through the electrically conductive plate;

a testing probe penetrated through the electrically conductive plate and protruded from a bottom surface of the electrically
conductive plate, wherein when the electrically conductive plate is close to the holder, the testing probe is contacted with
the electrical contact, wherein the testing probe comprises an outer tube which runs the opening; and

an insulation structure disposed on an outer surface of the outer tube of the testing probe or an inner surface of the opening
of the electrically conductive plate, wherein the testing probe and the electrically conductive plate are separated from each
other by the insulation structure.

US Pat. No. 9,693,161

CLOSE-TYPE SPEAKER LEAK TEST SYSTEM AND METHOD

PRIMAX ELECTRONICS LTD., ...

1. A close-type speaker leak test method for testing whether an under-test close-type speaker has a leak, the close-type speaker
leak test method comprising steps of:
communicating a first chamber and a second chamber, and generating a negative pressure value in the first chamber and the
second chamber;

cutting off the communication between the first chamber and the second chamber when the negative pressure values of the first
chamber and the second chamber are both equal to a default negative pressure value;

allowing the first chamber and a third chamber to be in communication with each other for a predetermined time so that a first
negative pressure value is generated in the third chamber, wherein a standard close-type speaker is disposed within the third
chamber;

allowing the second chamber and fourth chamber to be in communication with each other for the predetermined time so that a
second negative pressure value is generated in the fourth chamber, wherein the under-test close-type speaker is disposed within
the fourth chamber; and

measuring and comparing a pressure difference value between the first negative pressure value of the third chamber and the
second negative pressure value of the fourth chamber, wherein if the pressure difference value is larger than a predetermined
value, judging that the under-test close-type speaker has the leak.

US Pat. No. 9,627,157

KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:
a fixing plate;
a plurality of keys, disposed on the fixing plate, wherein each key comprises:
a key cap;
a first support element, disposed below the key cap and connecting the key cap and the fixing plate, wherein the first support
element is made of a magnetic material;

a second support element, pivotally connected to the first support element and connecting the key cap and the fixing plate;
and

a base plate, disposed below the fixing plate, and capable of moving relative to a bottom of the fixing plate, wherein the
base plate comprises:

a plurality of magnetic elements, magnetically attracting the first support element and capable of moving relative to the
base plate to generate a displacement, wherein one of the magnetic elements is corresponding to one of the keys, the first
support element and the second support element support the key cap to be at a first height when the magnetic element is displaced
to a first position below the fixing plate; and the magnetic element attracts the first support element, so that the first
support element and the second support element pull the key cap to descend to a second height when the magnetic element is
displaced to a second position below the fixing plate, so as to adjust the height of the key.

US Pat. No. 9,618,987

KEYBOARD MODULE AND NOTEBOOK COMPUTER WITH THE SAME

PRIMAX ELECTRONICS LTD., ...

1. A keyboard module, comprising:
plural keys exposed to a top surface of the keyboard module;
a switch circuit board disposed under the plural keys, wherein when the switch circuit board is triggered by the plural keys,
plural key signals are correspondingly generated; and

a metallic bottom plate connected with the plural keys, and supporting the plural keys and the switch circuit board, wherein
the metallic bottom plate comprises a first metal plate and a second metal plate, wherein the first metal plate is made of
a first metallic material, the second metal plate and the first metal plate are stacked on each other, and the second metal
plate is made of a second metallic material different from the first metallic material, wherein the second metal plate of
the metallic bottom plate is contacted with a passive heat dissipating element of a heat dissipating module, wherein a heat
from the second metal plate of the metallic bottom plate is transferred to the passive heat dissipating element and dissipated
to surroundings through an active heat dissipating element of the heat dissipating module.

US Pat. No. 9,799,467

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:
a supporting plate;
a keycap disposed over the supporting plate, and movable relative to the supporting plate in a first axial direction;
a frame disposed over the supporting plate and arranged around the keycap, wherein the frame comprises a linking element,
and the linking element is disposed on a bottom surface of the frame; and

a movable plate disposed under the supporting plate and movable relative to the supporting plate in a second axial direction,
wherein the movable plate comprises:

an extension part protruded upwardly from a top surface of the movable plate; and
a groove formed in the extension part and corresponding to the linking element, wherein the linking element is inserted in
the groove, so that the frame and the movable plate are combined together,

wherein while the movable plate is moved in the second axial direction, the linking element is moved along the groove in response
to movement of the movable plate, so that the frame is moved in the first axial direction, wherein the movable plate further
comprises:

a second extension part protruded upwardly from the top surface of the movable plate; and
a second groove formed in the second extension part and corresponding to the linking element, wherein the linking element
is inserted in the second groove, so that the frame and the movable plate are combined together.

US Pat. No. 9,741,506

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:
plural keycaps; and
a membrane switch circuit member disposed under the plural keycaps, wherein when the membrane switch circuit member is triggered
by one of the plural keycaps, a corresponding key signal is generated, wherein the membrane switch circuit member comprises:

a wiring board comprising plural first trace patterns and plural second trace patterns, wherein the plural first trace patterns
are disposed on the wiring board and aligned with respective keycaps, and the plural second trace patterns are disposed on
the wiring board, separated from the plural first trace patterns and aligned with respective keycaps, wherein there is a first
gap between each first trace pattern and the adjacent second trace pattern; and

plural separate covering pads disposed over the wiring board, wherein the plural covering pads are aligned with the keycaps
and cover the first gaps, wherein each covering pad has a triggering trace pattern over a corresponding first gap, wherein
the plural first trace patterns, the plural second trace patterns and the plural triggering trace patterns are sealed in a
space between the plural covering pads and the wiring board, so that foreign liquid is prevented from being introduced into
the membrane switch circuit member.

US Pat. No. 9,654,526

REAL-TIME STREAMING MEDIA PLAYING METHOD AND REAL-TIME STREAMING MEDIA PLAYING SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A real-time streaming media playing method, comprising steps of:
(A) allowing a first electronic device in an area network group to search an internet server on the Internet, and allowing
the internet server to issue an internet radio station type list, an internet radio station list and plural address data to
the first electronic device, wherein the internet radio station type list contains plural type data corresponding to plural
radio station types, and the internet radio station list contains plural internet radio station data corresponding to plural
internet radio stations;

(B) storing the plural type data, the plural internet radio station data and the plural address data into the first electronic
device, and correlating the internet server with a virtual folder of the first electronic device;

(C) allowing a second electronic device in the area network group to be connected to the first electronic device through network
connection, and allowing the virtual folder correlated with the internet server to be displayed on the second electronic device;

(D) selecting the virtual folder, so that the plural type data corresponding to plural radio station types are displayed on
the second electronic device;

(E) selecting a first type data of the plural type data, wherein after the first type data is selected, a playing list is
transmitted from the first electronic device to the second electronic device, so that the plural internet radio station data
corresponding to the first type data are displayed on the second electronic device, wherein the playing list contains the
plural internet radio station data and plural address path data corresponding to the plural internet radio stations; and

(F) selecting a first internet radio station data of the plural internet radio station data, wherein after the first internet
radio station data is selected, a first address data of the plural address data corresponding to a first internet radio station
is acquired by the second electronic device according to a first address path data of the plural address path data corresponding
to the first internet radio station, so that a real-time streaming media file corresponding to the first internet radio station
is played by the second electronic device or a third electronic device in the area network group according to the first address
data, wherein the step (F) comprises sub-steps of:

(F1) selecting the first internet radio station data of the plural internet radio station data, wherein after the first internet
radio station data is selected, the second electronic device is connected to the first electrode device through network connection
according to the first address path data of the playing list, wherein the first address path data corresponds to the first
internet radio station;

(F2) issuing a first address data of the plural address data from the first electronic device to the second electronic device
according to the first address path data, wherein the first address data corresponds to the first internet radio station;

(F3) allowing the second electronic device to be connected to the internet server through network connection according to
the first address data; and

(F4) issuing the real-time streaming media file corresponding to the first address data from the internet server to the second
electronic device, and playing the real-time streaming media file corresponding to the first internet radio station by the
second electronic device.

US Pat. No. 9,633,800

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:
a base;
a keycap disposed over the base, and movable relative to the base;
a first longitudinal bar connected with the keycap and the base, and located at a first side of the keycap;
a second longitudinal bar connected with the keycap and the base, and located at a second side of the keycap;
a first transverse bar connected with the keycap and the base, and located at a third side of the keycap, wherein a first
end of the first transverse bar is overlapped with the first longitudinal bar, and a second end of the first transverse bar
is overlapped with the second longitudinal bar; and

a second transverse bar connected with the keycap and the base, and located at a fourth side of the keycap, wherein a first
end of the second transverse bar is overlapped with the first longitudinal bar, and a second end of the second transverse
bar is overlapped with the second longitudinal bar,

wherein while the keycap is depressed, the first transverse bar and the second transverse bar are pushed by the keycap, and
the first longitudinal bar and the second longitudinal bar are pushed by the first transverse bar and the second transverse
bar, so that the keycap is moved relative to the base.

US Pat. No. 9,634,661

OPTICAL SWITCH KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An optical switch keyboard, comprising:
a circuit module comprising:
a circuit board;
plural light emitters disposed on a bottom surface of the circuit board, wherein each of the plural light emitters emits a
sensing light;

plural light receivers corresponding to the plural light emitters, respectively, wherein the plural light receivers are disposed
on the bottom surface of the circuit board, wherein when one of the plural light receivers receives the sensing light from
a corresponding light emitter, the light receiver generates a corresponding conducting signal; and

plural light sources disposed on the circuit board and electrically connected with the circuit board; and
plural keys corresponding to the plural light emitters, the plural light receivers and the plural light sources, respectively,
wherein the plural keys are disposed on a top surface of the circuit board, and each of the plural keys comprises:

a keycap;
a housing disposed under the keycap; and
a triggering element connected with the keycap and penetrating into the housing, wherein the triggering element has a light-transmissible
zone, wherein after a light beam from each light source is transmitted through the light-transmissible zone of the triggering
element, the light beam is irradiated on a bottom surface of the keycap,

wherein the sensing light from the corresponding light emitter is received by the one of the plural light receivers when the
triggering element is in a first position, the sensing light from the corresponding light emitter is not received by the one
of the plural light receivers when the triggering element is in a second position, and the circuit board generates a corresponding
triggering signal according to a status change of the corresponding conducting signal.

US Pat. No. 9,630,103

GAME CONTROLLER

PRIMAX ELECTRONICS LTD., ...

1. A game controller for controlling a game console, the game controller comprising:
a main body comprising a grasping part;
a detachable electrode disposed on the grasping part and providing an electric shock function;
a sensor detecting whether the detachable electrode is in contact with the grasping part; and
a controlling unit electrically connected with the detachable electrode and the sensor, wherein if the detachable electrode
is in contact with the grasping part, the detachable electrode generates a first electric shock signal according to an electric
shock command from the game console, wherein if the detachable electrode is not in contact with the grasping part, the detachable
electrode generates a second electric shock signal according to a relaxation shock setting of the controlling unit.

US Pat. No. 9,530,590

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a sensing module for generating at least one non-contact key signal;
at least one key, comprising:
a keycap comprising at least one light-outputting region located at a corner or edge of said keycap; and
a conductive element arranged between said keycap and said sensing module, and movable with said keycap, wherein as said keycap
is depressed, said conductive element is moved downwardly toward said sensing module, so that said at least one non-contact
key signal is correspondingly generated by said sensing module;

at least one bottom-emitting type illumination element being an active light source and being vertically aligned and disposed
under said at least one conductive element and at least one key for emitting an upward light beam toward said at least one
key; and

a light-transmissible supporting plate arranged between said sensing module and said at least one key for supporting and connecting
said at least one key, and covering said at least one bottom-emitting type illumination element while allowing said upward
light beam to transmit therethrough, wherein at least one lens is disposed on said light-transmissible supporting plate corresponding
to said at least one bottom-emitting type illumination element and the at least one conductive element, wherein after said
upward light beam is transmitted through said light-transmissible supporting plate, an optical path of said upward light beam
is changed by said lens and directed toward said light-outputting region of said keycap.

US Pat. No. 9,524,252

INPUT SYSTEM AND METHOD

PRIMAX ELECTRONICS LTD., ...

1. An input system, comprising:
a communication device in communication with an electronic device, wherein the communication device comprises a communication
chip and a communication port; and

a first input device generating a first input signal, wherein the first input device comprises a signal port and at least
one device connecting port, wherein the signal port is connectable with the communication port, and the at least one device
connecting port is connectable with at least one second input device, wherein the second input device generates a second input
signal,

wherein when the signal port is connected with the communication port, the communication device transmits a first pairing
signal to the first input device so as to acquire a first identification code of the first input device and a connection information
of the first input device,

wherein after the communication device transmits a first inquiring signal containing the first identification code to the
first input device, the communication device acquires the first input signal from the first input device, wherein the communication
device judges whether a second pairing signal has to be transmitted to the second input device according to the connection
information, wherein if the second pairing signal is transmitted to the second input device, the communication device acquires
a second identification code of the second input device.

US Pat. No. 9,847,188

KEY STRUCTURE

Primax Electronics Ltd., ...

1. A key structure, comprising:
a first movable plate;
a second movable plate disposed over the first movable plate;
a separation plate arranged between the first movable plate and the second movable plate, wherein the first movable plate
and the second movable plate are separated from each other by the separation plate;

a keycap disposed over the second movable plate, and movable relative to the separation plate;
a first linkage lever connected with the keycap and the first movable plate, wherein a first end and a second end of the first
linkage lever are movable on the first movable plate; and

a second linkage lever connected with the keycap and the second movable plate, wherein a first end and a second end of the
second linkage lever are movable on the second movable plate,

wherein while the first movable plate is moved in a first direction and the second movable plate is moved in a second direction
opposed to the first direction, the first linkage lever is pushed by the first movable plate in the first direction and the
second linkage lever is pushed by the second movable plate in the second direction, so that a height of the keycap is reduced.

US Pat. No. 9,773,626

KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:
plural keycaps partially exposed outside the keyboard;
plural scissors-type connecting elements, wherein each scissors-type connecting element is aligned with a corresponding keycap
and connected with the corresponding keycap, wherein at least one of the plural scissors-type connecting elements has a bulge,
and the bulge is protruded externally from a sidewall of the corresponding scissors-type connecting element;

a base plate connected with the plural scissors-type connecting elements, wherein the plural keycaps and the plural scissors-type
connecting elements are supported by the base plate; and

a sliding plate disposed under the base plate, wherein when the sliding plate is pushed, the sliding plate is moved relative
to the base plate, wherein the sliding plate comprises plural position-limiting structures corresponding to respective bulges,
and the plural bulges are inserted into the corresponding position-limiting structures, wherein when the sliding plate is
moved relative to the base plate, a relative position between each bulge and the corresponding position-limiting structure
is changed, so that a height of the corresponding keycap is changed, wherein each of the plural position-limiting structure
comprises:

a first step part located at a first side of the position-limiting structure to receive the corresponding bulge;
a second step part located at a second side of the position-limiting structure to receive the corresponding bulge, and the
second step part is lower than the first step part; and

as junction part arrange between the first step part and the second step part, wherein when the sliding place is moved relative
to the base plate in a first direction, the bulge is pushed into the second step part by the junction part.

US Pat. No. 9,845,048

CAR DOOR OPENING PRE-DETECTION SYSTEM

Primax Electronics Ltd., ...

1. A car door opening pre-detection system for a car, the car door opening pre-detection system comprising:
a first detecting module installed in an interior portion of the car, wherein the first detecting module issues a motion detecting
signal according to a result of detecting a motion of a palm;

a second detecting module installed on an exterior portion of the car, wherein when the car is stopped, the second detecting
module is enabled to selectively provide a first detection range or a second detection range; and

a control module electrically connected with the first detecting module and the second detecting module, wherein the control
unit receives the motion detecting signal and judges whether a car door of the car is about to be opened according to the
motion detecting signal,

wherein when the car is stopped and the control module judges that the car door is about to be opened, the first detection
range of the second detecting module is switched to the second detection range under control of the control module, and the
second detecting module provides the second detection range to detect whether a moving object behind the car is close to the
car within the second detection area,

wherein the second detection range has a larger detecting angle than the first detection range and a smaller detecting distance
than the first detection range.

US Pat. No. 9,847,190

MECHANISM TO RAISE AND LOWER THE HEIGHT OF KEYS WITHIN A KEYBOARD

Primax Electronics Ltd., ...

1. A key structure, comprising:
a supporting plate;
a keycap disposed over the supporting plate, and movable relative to the supporting plate in a first direction;
a scissors-type connecting element connected with the supporting plate and the keycap;
a movable element disposed under the supporting plate, and movable relative to the supporting plate in a second direction;
and

a coupling structure connected with the movable element, and moved with the movable element, wherein while the movable element
is moved in the second direction, the coupling structure is moved with the movable element and the keycap is correspondingly
moved in the first direction, wherein the coupling structure is a coupling frame that is disposed on a bottom surface of the
scissors-type connecting element, and the coupling frame has a first contact slant, wherein the movable element comprises
a linking part that is deposed on a bottom surface of the movable element, and a second contact slant is formed between the
linking part and the bottom surface of the movable element, wherein the linking part is inserted into the coupling frame,
and the first contact slant and the second contact slant are contacted with each other,

wherein while the movable element is moved in the second direction, the first contact slant of the coupling structure is pushed
by the second contact slant, and the keycap is correspondingly moved in the first direction, so that the key structure is
switched from a laptop mode to a slim-type mode, wherein while the movable element is moved in a third direction opposite
to the second direction, the first contact slant is not pushed by the second contact slant, the coupling structure is moved
along the second contact slant to the bottom surface of the movable element, and the keycap is correspondingly moved in a
fourth direction opposite to the first direction, so that the key structure is switched from the slim-type mode to the laptop
mode.

US Pat. No. 9,767,970

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:
a connecting plate;
a keycap disposed over the connecting plate, and movable relative to the connecting plate, wherein the keycap comprises a
protrusion part, and the protrusion part is protruded from an inner surface of the keycap;

a scissors-type connecting element connected with the keycap and the connecting plate; and
a supporting plate disposed under the connecting plate, wherein the connecting plate, the scissors-type connecting element
and the keycap are supported by the supporting plate, wherein the supporting plate comprises:

an accommodation part protruded from a top surface of the supporting plate; and
an elastic structure disposed within the accommodation part and partially exposed outside the accommodation part so as to
be contacted with the protrusion part, wherein when the keycap is depressed, the protrusion part is moved with the keycap,
so that the elastic structure is collided by the protrusion part and a sound is generated, wherein the elastic structure comprises:

a main body;
an elastic sheet connected with the main body, and permitted to be swung relative to the main body, wherein when the elastic
sheet is collided by the protrusion part, the elastic sheet is swung relative to the main body and the sound is generated;
and

a collision part disposed on the main body and located near the accommodation part, wherein when the elastic sheet is collided
by the protrusion part, an inner surface of the accommodation part is collided by the collision part and the sound is generated.

US Pat. No. 9,578,408

HEADPHONE DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A headphone device, comprising:
at least one sound outputting part, wherein each sound outputting part comprises a case, a main board, a driving unit, a baffle
plate and an ear pad, wherein the main board is accommodated within the case, the driving unit is accommodated within the
case and connected with the main board and allows the headphone device to generate sound, the baffle plate covers the driving
unit and avoids sound field interference, and the ear pad covers the baffle plate and has a ring-shaped structure, wherein
when the headphone device is worn by a user, the ear pad is in contact with a corresponding human ear; and

a sensor installed on the baffle plate, uncovered by the ear pad and connected with the main board, wherein if the human ear
is sensed by the sensor, the main board judges that the headphone device is worn by the user, wherein if the human ear is
not sensed by the sensor, the main board judges that the headphone device is not worn by the user;

wherein the headphone device further comprising a covering plate, wherein the covering plate is arranged between the baffle
plate and the ear pad, and the covering plate comprises a perforation, wherein the sensor is exposed through the perforation,
and wherein a sensing distance of the sensor is smaller than a thickness of the ear pad.

US Pat. No. 10,019,073

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a casing;
plural keys, wherein each of the plural keys is at least partially exposed outside the casing so as to be depressed;
at least one image pickup device installed in the casing, wherein after an operation image of the plural keys that are operated is captured by the at least one image pickup device, an information image over the keyboard device is scanned by the at least one image pickup device, so that a scanned image is acquired; and
a processor connected with the at least one image pickup device to receive the operation image and the scanned image, wherein when the processor judges that at least one of the plural keys is depressed according to the operation image, the processor generates a corresponding operation signal to a touch device, wherein the processor generates a corresponding information signal to the touch device according to the scanned image.

US Pat. No. 9,846,492

OPTICAL SWITCH KEYBOARD

Primax Electronics Ltd., ...

1. An optical switch keyboard, comprising:
a circuit board comprising plural light emitters and plural light receivers, wherein each light emitter emits a sensing light,
and each light receiver generates an electronic signal when the sensing light from the corresponding light emitter is received
by the light receiver; and

plural keys located over the circuit board, wherein each key is aligned with the corresponding light emitter and the corresponding
light receiver, and each key comprises:

a keycap;
a housing located under the keycap;
a first reflective element disposed within the housing and located over the light emitter, wherein the sensing light is reflected
by the first reflective element; and

a triggering post connected with the keycap and inserted into housing, wherein a second reflective element is connected with
the triggering post and located over the light receiver, wherein when the triggering post is in a first position, the sensing
light from the first reflective element is not received by the second reflective element, wherein when the triggering post
is in a second position, the sensing light from the first reflective element is received by the second reflective element
and the sensing light is reflected to the light receiver by the second reflective element, so that the circuit board generates
a key switch signal according to the electronic signal.

US Pat. No. 9,843,712

IMAGE FOCUSING METHOD UTILIZING PLURAL PHASE DIFFERENCES AND IMAGE PICKUP DEVICE USING THE SAME

Primax Electronics Ltd., ...

1. An image focusing method, comprising steps of:
(a) capturing an image, wherein the image contains plural phase detection pixel groups, wherein the plural phase detection
pixel groups comprise plural first incident light pixels and plural second incident light pixels, respectively;

(b) collecting the plural first incident light pixels as a first pattern, and collecting the plural second incident light
pixels as a second pattern, wherein the first pattern has a first block corresponding to a focusing area of the image, and
the second pattern has a second block corresponding to the focusing area of the image;

(c) acquiring a phase difference between the first block and the second block and acquiring phase differences between the
first block and plural test blocks, wherein the plural test blocks are partially overlapped with the second block or located
near the second block; and

(d) moving a lens module to perform a focusing operation according to the lowest phase difference among the plural phase differences.

US Pat. No. 9,742,972

CAMERA MODULE AND ASSEMBLING METHOD THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A camera module, comprising:
a lens assembly;
a power device connected with the lens assembly, wherein the lens assembly is moved by the power device, wherein the power
device comprises a first circuit board, and the first circuit board has an electrical contact, wherein the electrical contact
is exposed to a lateral side of the power device;

a second circuit board disposed under the first circuit board, and comprising a conductive hole corresponding to the electrical
contact, wherein the conductive hole is exposed to a lateral side of the second circuit board; and

a welding element installed on the lateral side of the power device and the lateral side of the second circuit board, wherein
the welding element is contacted with the electrical contact and the conductive hole, so that the first circuit board and
the second circuit board are electrically connected with each other,

wherein the conductive hole comprises:
an opening located at the lateral side of the second circuit board, wherein the opening runs through the second circuit board;
and

a conductive structure disposed within the opening, wherein the opening and the conductive structure are exposed to the lateral
side of the second circuit board, wherein the welding element is located at the lateral side of the power device and the lateral
side of the second circuit board, and contacted with the electrical contact and the conductive structure, so that the electrical
contact and the conductive structure are electrically connected with each other.

US Pat. No. 9,742,215

INPUT DEVICE

PRIMAX ELECTRONICS LTD., ...

1. An input device, comprising:
at least one input interface, wherein when the at least one input interface is touched, a corresponding input signal is generated;
a power module providing electricity to the input device;
a wireless charging module for wirelessly charging an electronic device;
a solar charging module for charging the power module or providing electricity to the wireless charging module;
a controller disposed on a circuit board and electrically connected with the input interface, the power module, the wireless
charging module and the solar charging module,

wherein when the controller detects that an electricity quantity percentage of the power module is lower than a predetermined
value, the controller controls the solar charging module to charge the power module, wherein when the electronic device is
in communication with the input device, the controller controls the solar charging module to the provide electricity to the
wireless charging module, and the electronic device is wirelessly charged by the wireless charging module if the electronic
device is within a charging range; and

a first main body and a second main body, wherein the at least one input interface comprises a first input interface and a
second input interface, wherein the first input interface is disposed within the first main body, and the second input interface
is disposed within the second main body, wherein the first main body is pivotally coupled to the second main body, so that
the first main body and the second main body are rotatable relative to each other.

US Pat. No. 9,715,977

KEYBOARD WITH HEIGHT-ADJUSTABLE KEYS

PRIMAX ELECTRONICS LTD., ...

1. A keyboard with height-adjustable keys, the keyboard comprising:
a switching circuit layer;
a key supporting plate disposed under the switching circuit layer;
a movable plate disposed under the key supporting plate, and movable relative to the key supporting plate; and
the keys connected with the key supporting plate, and disposed over the switching circuit layer, wherein each key comprises
a keycap, an elastic element and a supporting element, wherein the elastic element is disposed under the keycap and disposed
on the switching circuit layer, and the supporting element is disposed under the keycap, arranged around the elastic element
and connected with the key supporting plate and the keycap, wherein the supporting element comprises:

a first connecting part connected with the key supporting plate, so that the supporting element is fixed on the key supporting
plate;

a second connecting part movably connected with the key supporting plate; and
plural bulges protruded downwardly from a bottom surface of the second connecting part, penetrated through the switching circuit
layer and the key supporting plate, and inserted in the movable plate,

wherein when the second connecting part of the supporting element is in a first position, the keycap is supported by the elastic
element, so that the keycap is at a first height, wherein while the movable plate is moved to push the plural bulges, the
second connecting part of the supporting element is moved to a second position, and the keycap is correspondingly pulled by
the supporting element and moved toward the key supporting plate, so that the keycap is at a second height.

US Pat. No. 9,632,002

LEAK TEST SYSTEM AND METHOD FOR TESTING SEMI-FINISHED PRODUCT OF SPEAKER

PRIMAX ELECTRONICS LTD., ...

1. A leak test system for testing a semi-finished product of a speaker by detecting whether the semi-finished product of the
speaker has a leak, the semi-finished product of the speaker comprising a case, an interface being installed on a surface
of the case, the leak test system comprising:
a covering element attached on the surface of the case of the semi-finished product of the speaker, so that the interface
of the semi-finished product of the speaker is covered by the covering element;

a vacuum generator in communication with the covering element, wherein a negative pressure value of the covering element is
generated by the vacuum generator;

a pressure gauge, wherein an equilibrium pressure value of the covering element is measured by the pressure gauge; and
a controller, wherein the controller is electrically connected with the pressure gauge, and the equilibrium pressure value
measured by the pressure gauge is transmitted to the controller, wherein if the equilibrium pressure value is equal to the
default negative pressure value, the controller judges that the semi-finished product of the speaker has no leak, wherein
if an absolute value of the equilibrium pressure value is lower than an absolute value of the default negative pressure value,
the controller judges that the semi-finished product of the speaker has the leak,

wherein according to a result of comparing the equilibrium pressure value of the covering element with a default negative
pressure value, the leak test system judges whether the semi-finished product of the speaker has the leak, wherein the default
negative pressure value is the negative pressure value generated by the vacuum generator when a qualified semi-finished product
of the speaker is tested.

US Pat. No. 9,531,381

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a sensing circuit pattern for generating at least one non-contact key signal;
at least one key, wherein when said at least one key is depressed, said at least one non-contact key signal is correspondingly
generated by said sensing circuit pattern;

a lateral-emitting type illumination element for providing a light beam;
a light guide panel, wherein said lateral-emitting type illumination element is located at a lateral side of said light guide
panel, and said light guide panel has at least one light-guiding dot for collecting and scattering said light beam from said
lateral-emitting type illumination element out of said light-guide panel toward said at least one key; and

a light-transmissible supporting plate arranged above the sensing circuit pattern and between said light guide panel and said
at least one key, and the light-transmissible supporting plate connecting and supporting said at least one key, wherein said
light-transmissible supporting plate has at least one optical path changing structure, through which said light beam scattered
by said at least one light-guiding dot toward said at least one key is directed to a specific area of said at least one key,

wherein said at least one optical path changing structure comprises plural microstructures formed on said light-transmissible
supporting plate, and each of said plural microstructures is a V-cut structure or a texturing structure.

US Pat. No. 9,959,993

KEY CONNECTING MODULE

PRIMAX ELECTRONICS LTD., ...

1. A key connecting module, disposed on a bottom board and used to trigger a switch circuit board, wherein the key connecting module comprises:a frame, disposed above the switch circuit board and having a support structure; and
a triggering assembly that is accommodated in the support structure, is moveable relative to the frame so as to be combined with a first keycap or a second keycap, and is pushed by the first keycap or the second keycap to trigger the switch circuit board, wherein the first keycap and the second keycap have different shapes and when the key connecting module is connected to the first keycap, the first keycap partially extends into the triggering assembly and is combined with a first combining part of the triggering assembly, wherein the first combining part is complementary to a first keycap combining part of the first keycap; and when the key connecting module is connected to the second keycap, the second keycap partially extends into the triggering assembly and is combined with a second combining part of the triggering assembly, wherein the second combining part is complementary to a second keycap combining part of the second keycap, wherein the triggering assembly comprises:
a connecting piece, fixed to the support structure, so that the first keycap and the second keycap separately extend into a top end of the connecting piece and are combined with the connecting piece; and
a triggering piece, located below the connecting piece, wherein one end of the triggering piece is in contact with the connecting piece, and the other end of the triggering piece is in contact with the switch circuit board, so that the triggering piece is pushed by the first keycap or the second keycap to trigger the switch circuit board.

US Pat. No. 9,898,094

ASSEMBLABLE KEYBOARD AND ASSEMBLABLE KEY

PRIMAX ELECTRONICS LTD., ...

1. An assemblable keyboard, comprising:
plural assemblable keys, wherein each of the plural assemblable keys comprises:
a pedestal comprising a frame and a first coupling structure or a second coupling structure, wherein the first coupling structure
or the second coupling structure is formed on a lateral wall of the frame;

a key structure disposed within the frame of the pedestal to generate a key signal, wherein one of the plural assemblable
keys with the first coupling structure and an adjacent assemblable key of the plural assemblable keys with the second coupling
structure are combined together through engagement between the first coupling structure and the second coupling structure;
and

a conductive structure disposed under the key structure and extended to the first coupling structure or the second coupling
structure of the frame, wherein when the key structure is depressed, the key signal is generated and the key signal is transmitted
to the adjacent assemblable key through the first coupling structure and the second coupling structure; and

a main control key electrically connected with a specified assemblable key of the plural assemblable keys, and comprising
a keyboard processor and a transmission interface, wherein the key signal is processed by the keyboard processor, the transmission
interface is electrically connected with the keyboard processor, and the key signal is transmitted to a computer host through
the transmission interface.

US Pat. No. 9,899,162

KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:
a base plate;
a pressure sensing layer located over the base plate, wherein the pressure sensing layer comprises plural pressure sensing
regions, and each of the plural pressure sensing regions is configured to receive a first force or a second force;

a first key structure located over the pressure sensing layer, and aligned with the corresponding pressure sensing region,
wherein when the corresponding pressure sensing region is pushed by the first key structure, the first key structure provides
the first force or the second force to the corresponding pressure sensing region, wherein the first key structure comprises:

a pedestal comprising a pedestal opening;
an upper cover having an upper cover opening, wherein the pedestal is covered by the upper cover;
a movable element disposed on the pedestal and partially penetrated through the upper cover opening, wherein while the movable
element is depressed, the movable element is moved relative to the pedestal;

an elastomer located near the movable element, wherein when the elastomer is pushed by the movable element, the elastomer
is subjected to deformation and penetrated through the pedestal opening; and

a spring strip, and the spring strip is installed on the pedestal and arranged beside the movable element,
wherein the movable element comprises:
a main body;
an extension part extended externally from the main body, and aligned with the elastomer;
a coupling part located at a first end of the main body, and connected with a keycap; and
a push part, and the push part is extended externally from the main body and located near the spring strip,
wherein the elastomer is aligned with the pedestal opening, wherein while the movable element is moved relative to the pedestal,
the elastomer is pushed by the extension part, and the elastomer is subjected to deformation and penetrated through the pedestal
opening, so that the corresponding pressure sensing region is pressed by the elastomer, wherein while the movable element
is moved relative to the pedestal, the movable element is contacted with the spring strip, so that the spring strip is swung
to collide with the push part and generate a sound; and

a second key structure arranged beside the first key structure, located over the pressure sensing layer, and aligned with
the corresponding pressure sensing region, wherein when the corresponding pressure sensing region is pushed by the second
key structure, the second key structure provides the first force or the second force to the corresponding pressure sensing
region,

wherein when the first key structure or the second key structure is depressed with the first force or the second force, the
keyboard outputs a corresponding pressure sensing signal.

US Pat. No. 9,852,854

SLIM-TYPE KEYBOARD

Primax Electronics Ltd., ...

1. A slim-type keyboard, comprising:
a first flexible layer comprising plural pressed regions;
a pressed frame disposed under the first flexible layer, wherein the pressed frame comprises plural hollow regions and plural
cantilever strips, and the plural cantilever strips are defined by the plural hollow regions, wherein each of the plural cantilever
strips comprises a U-shaped groove, a connection end and a suspension end, and the U-shaped groove opens to the suspension
end, wherein the plural cantilever strips are covered by the first flexible layer, and the pressed regions are disposed over
and aligned with the corresponding cantilever strips, wherein when one of the plural pressed regions is pressed, the corresponding
cantilever strip is pushed downwardly;

a circuit board assembly comprising a circuit board and plural dome switches, wherein the plural dome switches are disposed
on the circuit board, and the plural cantilever strips are disposed over and aligned with the corresponding dome switches,
wherein when one of the plural cantilever strips is pushed downwardly, the corresponding dome switch is triggered; and

a second flexible layer disposed under the circuit board assembly, wherein a peripheral region of the first flexible layer
and a peripheral region of the second flexible layer are attached on each other, an accommodation space is defined by the
first flexible layer and the second flexible layer collaboratively, and the pressed frame and the circuit board assembly are
accommodated within the accommodation space;

wherein the circuit board assembly further comprises a supporting plate, and the supporting plate is arranged between the
circuit board and the second flexible layer,

wherein the circuit board comprises a first slot, and the supporting plate comprises a second slot, wherein after the connection
end of one of the plural cantilever strips is penetrated downwardly through the first slot and the second slot, the connection
end is bent to form a bent structure, wherein the bent structure has a top surface and a bottom surface, the top surface of
the bent structure is contacted with the supporting plate, and the bottom surface of the bent structure is contacted with
the second flexible layer.

US Pat. No. 9,798,392

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:
a base plate;
a support plate, disposed on the base plate; and
a plurality of keys, disposed on the support plate, wherein each of the keys comprises:
a key cap, disposed above the support plate;
an illumination element, disposed under the key cap and configured to provide light;
an elastic element, disposed under the key cap and disposed at one side of the illumination element;
a reflective cover, disposed at one side of the illumination element to cover a part of the illumination element; and
a support element, connected to the key cap and surrounding the elastic element,
wherein the reflective cover reflects the light to the elastic element, and the elastic element transmits the light to the
key cap to make the key illuminant,

wherein the support plate is an elastic sheet; the elastic element is integrally formed on the elastic sheet; and the reflective
cover is formed, by means of extending upward from the elastic sheet, at one side of the illumination element to cover a part
of the illumination element.

US Pat. No. 9,965,046

KEYBOARD AND NOTEBOOK COMPUTER WITH SAME

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:a membrane circuit board comprising a membrane switch;
a key frame comprising a receiving hole and a position-limiting structure, wherein the position-limiting structure is protruded externally from the key frame;
a key corresponding to the membrane switch, wherein the key comprises a keycap, and the keycap is movable within the receiving hole when the keycap is depressed;
a fixing plate disposed under the key frame, and comprising a guiding structure corresponding to the position-limiting structure; and
a linking rod pivotally coupled to the key frame, wherein while the linking rod is rotated relative to the key frame to push the key frame, the position-limiting structure is moved along the guiding structure, so that the key frame is limited to be moved in a first axial direction.

US Pat. No. 9,959,992

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device, the stabilizer bar is connected with the keycap, and comprises a linking bar part and a hook part, wherein the linking bar part is connected with the keycap, and the hook part is located at an end of the linking bar part;
a switch circuit board located under the key structure, wherein when the switch circuit board is triggered, a key signal is generated;
a base plate located under the switch circuit board, and supporting the key structure; and
a soft fixing element disposed on the base plate and connected with the hook part, and comprising a main body and an accommodation space, wherein the accommodation space is disposed within the main body, and the hook part is inserted into the accommodation space, so that the hook part is permitted to be moved within the accommodation space;
wherein the base plate comprises:
a bent structure corresponding to the soft fixing element, wherein the bent structure is formed on the base plate;
a notch defined by the bent structure, wherein the main body is partially received in the notch; and
a fixing hole formed in the bent structure and located beside the notch.

US Pat. No. 9,941,073

KEYBOARD DEVICE

Primax Electronics Ltd., ...

1. A keyboard device, comprising:a key comprising a keycap and a stabilizer bar, wherein the stabilizer bar comprises a transverse bar part and a first hook part, wherein the transverse bar part is pivotally coupled to the keycap, and the first hook part is located at a first end of the transverse bar part;
a base plate connected with the key, and comprising a first connecting structure, wherein the first connecting structure is protruded upwardly from the base plate and comprises a first locking hole and a third locking hole, and the first hook part of the stabilizer bar is penetrated through the first locking hole; and
a membrane circuit board arranged between the key and the base plate, and comprising a membrane switch corresponding to the key, wherein the membrane circuit board further comprises a first extension part, and wherein the first extension part comprises a first bulge and a third bulge, wherein the first bulge is extended from a first side of the first locking hole to a second side of the first locking hole and penetrated through the first locking hole, and wherein the third bulge is extended from a first side of the third locking hole to a second side of the third locking hole and penetrated through the third locking hole,
wherein while the keycap is moved upwardly or downwardly relative to the base plate, the first hook part penetrated through the first locking hole is movable on the first extension part.

US Pat. No. 10,032,577

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:a plurality of keys, each of the keys comprising:
a key cap; and
a movable connecting component, disposed below the key cap and connected to the key cap;
a metal plate, disposed below the keys and bearing the keys, the metal plate comprising a plurality of metal domes, wherein each of the metal domes is protrudingly formed corresponding to one of the keys;
a thin film circuit board, disposed below the metal plate, wherein the thin film circuit board comprises a plurality of electrical contact parts, the electrical contact parts are located on an upper surface of the thin film circuit board, and each of the electrical contact parts corresponds to one of the metal domes, so that when a user presses the key downward, the metal dome may move downward to get in contact with the corresponding electrical contact part to conduct the electrical contact part and generate a corresponding key signal; and
a backlight module, disposed below the thin film circuit board, wherein the backlight module comprises a light guide plate, a reflecting plate, and a plurality of illuminating components, the illuminating components emit a plurality of light beams toward the light guide plate, and the light beams are refracted by the light guide plate or reflected by the reflecting plate to the key cap,
wherein each of the electrical contact parts comprises an anode contact and a cathode contact, the anode contact is located at a central position of the electrical contact part, and the cathode contact is in a ring shape and encloses the anode contact, wherein when the metal dome is pressed downward, the metal dome gets in contact with the anode contact and the cathode contact at the same time, so as to conduct the anode contact and the cathode contact.

US Pat. No. 9,984,839

ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. An illuminated keyboard, comprising:a light guide backplate, made of a light guide material and comprising a plurality of light guide limiting structures directly formed on an upper surface of the light guide backplate and a printed circuit layer formed on the upper surface of the light guide backplate, the printed circuit layer comprising a plurality of conductive switch contacts;
a plurality of keys, connected to the upper surface of the light guide backplate, each of the keys comprising:
a key cap;
a connection member, comprising an upper connection portion and a lower connection portion, wherein the upper connection portion is connected to the key cap, and the lower connection portion extends into one of the light guide limiting structures, so as to connect the connection member to the light guide backplate; and
a support member, disposed below the key cap and having a conductive contact, wherein when the key cap is pressed, the conductive contact of the support member moves downward to get in contact with one of the conductive switch contacts of the printed circuit layer to generate a switch signal; and
a plurality of illumination components, disposed on one side of the light guide backplate and configured to emit light rays to the light guide backplate, such that the light guide backplate including the light guide limiting structures transmits the light rays upward to the key cap.

US Pat. No. 9,971,307

ELECTRONIC WATCH WITH FUNCTION OF CALLING FOR HELP

PRIMAX ELECTRONICS LTD., ...

1. An electronic watch with a function of calling for help, the electronic watch comprising:a main body comprising a displaying surface;
a control module disposed within the main body;
a time display module disposed on the displaying surface and electrically connected with the control module;
a transparent cover aligned with the control module to cover the displaying surface, wherein the transparent cover is connected with the main body;
an identifying module connected with the displaying surface and located under the transparent cover, wherein the identifying module is electrically connected with the control module, and an identification data is stored in the identifying module; and
a positioning module disposed within the main body and electrically connected with the control module, wherein the positioning module generates a position data,
wherein if a capture signal obtained by the identifying module complies with the identification data, a distress signal containing the identification data and the position data is generated by the control module.

US Pat. No. 9,950,666

CAR SEAT WITH WARNING FUNCTION

PRIMAX ELECTRONICS LTD., ...

1. A car seat with a warning function, the car seat being installed in a vehicle and comprising:a seat body comprising a seat cushion, wherein the seat cushion is contactable with a human body of a user;
plural adjusting posts disposed within the seat body and contacted with the seat cushion, wherein a length of at least one adjusting post of the plural adjusting posts is changeable;
a wireless transmission module in wireless communication with an electronic device so as to receive a body curve data from the electronic device;
a control unit electrically connected with the plural adjusting posts and the wireless transmission module, wherein the control unit judges whether the body curve data complies with a predetermined body data; and
a warning element electrically connected with the control unit, wherein if the control unit judges that the body curve data does not comply with the predetermined body data, the warning element issues a warning signal, wherein if the control unit judges that the body curve data complies with the predetermined body data, the control unit adjusts the length of the at least one adjusting post according to the body curve data, so that a shape of the seat cushion fits a body shape of the human body of the user,
wherein when a car door of the vehicle is opened, the control unit judges whether the predetermined body data is stored in the car seat, wherein if the control unit judges that the predetermined body data has been stored in the car seat, the wireless transmission module is enabled to receive the body curve data, wherein if the control unit judges that the predetermined body data is not stored in the car seat, the control unit creates the predetermined body data,
wherein after the body curve data is received by the wireless transmission module, the control unit judges whether the body curve data complies with the predetermined body data, wherein if the body curve data is not received by the wireless transmission module, the control unit issues a password request signal to the electronic device through the wireless transmission module,
wherein after the electronic device outputs a user password in response to the password request signal, the control unit judges whether the user password complies with a predetermined password, wherein if the control unit judges that the user password complies with the predetermined password, the control unit enables plural detecting elements to detect the lengths of the plural adjusting posts, wherein if the control unit judges that the user password does not comply with the redetermined password, the control unit enables the warning element to output the warning signal.

US Pat. No. 9,941,072

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device, the stabilizer bar is connected with the keycap, and comprises a linking bar part and a hook part, wherein the linking bar part is connected with the keycap, and the hook part is located at an end of the linking bar part;
a switch circuit board located under the key structure, wherein when the switch circuit board is triggered, a key signal is generated;
a base plate located under the switch circuit board, and supporting the key structure;
a soft covering element disposed on the base plate, wherein an accommodation space is defined by the soft covering element and the base plate collaboratively, and the hook part is inserted into the accommodation space, so that the hook part is permitted to be moved within the accommodation space; and
a buffering pad disposed on the base plate and partially received within the accommodation space, wherein the hook part and the base plate are separated from each other through the buffering pad.

US Pat. No. 9,905,380

MAGNETIC TYPE KEYBOARD AND MAGNETIC KEY THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A magnetic type keyboard comprising plural magnetic keys, each magnetic key comprising:
a keycap to be depressed;
a base plate;
a membrane circuit member disposed over the base plate;
a frame disposed over the base plate and the membrane circuit member, and comprising a first concave structure, a second concave
structure and an opening, wherein the keycap is movably inserted in the opening, and the frame has an accommodation space;

a first magnetic element disposed on the base plate and received within the first concave structure;
a second magnetic element disposed on the base plate and received within the second concave structure; and
a third magnetic element disposed under the keycap and accommodated within the accommodation space, wherein in response to
a first magnetic force between the third magnetic element and the first magnetic element and a second magnetic force between
the third magnetic element and the second magnetic element, the keycap is driven to be protruded out of the opening,

wherein each of the first magnetic element and the second magnetic element is a magnet or made of a paramagnetic material,
and the third magnetic element is made of plural magnets, wherein the third magnetic element comprises a first magnet, a second
magnet and a third magnet, and unlike poles of the first magnet, the second magnet and the third magnet are arranged beside
each other, wherein a first magnet force is generated between the first magnet and the first magnetic element, a second magnetic
force is generated between the second magnet and the second magnetic element, a third magnetic force is generated between
the third magnet and the first magnet, and a fourth magnetic force is formed between the third magnet and the second magnet,
wherein when a depressing force exerted on the keycap overcomes the first magnetic force, the second magnetic force, the third
magnetic force and the fourth magnetic force, the first magnet is deflected relative to the first magnetic element and the
third magnet, and the second magnet is deflected relative to the second magnetic element and the third magnet.

US Pat. No. 9,905,381

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
plural keys exposed outside the luminous keyboard;
a membrane switch circuit board disposed under the plural keys, wherein when the membrane switch circuit board is triggered
by one of the plural keys, a corresponding key signal is generated, wherein the membrane switch circuit board comprises:

an upper wiring plate contacted with the plural keys;
a lower wiring plate disposed under the upper wiring plate and comprising a wiring plate opening, wherein the wiring plate
opening runs through the lower wiring plate;

a conductor line pattern arranged between the upper wiring plate and the lower wiring plate;
a separation layer arranged between the upper wiring plate and the lower wiring plate, wherein the upper wiring plate and
the lower wiring plate are separated from each other by the separation layer; and

an etched line pattern arranged between the separation layer and the lower wiring plate, wherein the etched line pattern is
exposed through the wiring plate opening; and

a light-emitting element electrically connected with the etched line pattern through the wiring plate opening, wherein the
light-emitting element emits a light beam.

US Pat. No. 9,881,750

MULTICOLOR ILLUMINATED KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A multicolor illumination keyboard, comprising:
a light-emitting element emitting a source light to the multicolor illumination keyboard;
a color filter located above the light-emitting element, and allowing the source light to pass through, wherein the color
filter comprises plural filtering regions, and plural color lights are generated after the source light passes through the
corresponding filtering regions;

plural keys disposed over the color filter, wherein each key comprises a keycap, and the keycap comprises plural light-transmissible
regions, wherein after the plural color lights pass through the corresponding light-transmissible regions, the plural color
lights are outputted from the key; and

plural elastic elements, wherein each of the plural elastic elements is aligned with the corresponding keycap, and the key
is returned to an original position in response to elasticity provided by the elastic element, wherein the plural elastic
elements are disposed on the color filter, and the plural elastic elements and the color filter are collaboratively formed
as a flexible color filter layer.

US Pat. No. 9,837,228

ILLUMINATED KEYBOARD WITH OPTICAL SWITCH

Primax Electronics Ltd., ...

1. An illuminated keyboard with an optical switch, the illuminated keyboard comprising:
a circuit board comprising plural light-emitting elements, plural light emitters and plural light receivers, wherein each
light-emitting element emits a light beam, each light emitter emits a sensing light, and each light receiver generates an
electronic signal when the sensing light from the corresponding light emitter is received by the light receiver; and

plural keys located over the circuit board, wherein each key is aligned with the corresponding light-emitting element, the
corresponding light emitter and the corresponding light receiver, and each key comprises:

a keycap;
a housing located under the keycap;
a first reflective element disposed within the housing, wherein the sensing light is reflected by the first reflective element;
a triggering post connected with the keycap and inserted into housing, wherein the triggering post is movable relative to
the housing, and a second reflective element is connected with the triggering post, wherein after the sensing light from the
first reflective element is received by the second reflective element, the sensing light is reflected to the light receiver
by the second reflective element;

a light guide element disposed within the housing and located over the light-emitting element; and
a light guide frame disposed within the housing, wherein a top surface of the light guide frame is substantially at the same
level with a top surface of the housing, and the light guide frame is connected with the light guide element and arranged
around the triggering post,

wherein after the light beam emitted by the light-emitting element is introduced into the housing, the light beam within the
housing is guided to the light guide frame by the light guide element, and the light beam is scattered to a region around
the triggering post and outputted from the keycap, wherein after the sensing light emitted by the light emitter is introduced
into the housing and reflected to the second reflective element by the first reflective element, the sensing light is reflected
to the light receiver by the second reflective element, so that the light receiver generates the electronic signal.

US Pat. No. 9,836,138

TOUCH PEN

Primax Electronics Ltd., ...

1. A touch pen for a touch device, the touch pen comprising:
a main body;
a connector disposed within the main body, and located at a first end of the main body;
a first conductive pen tip detachably coupled with the connector, and contactable with the touch device;
a second conductive pen tip detachably coupled with the connector, and contactable with the touch device; and
a switching module disposed within the main body, and contacted with the first conductive pen tip or the second conductive
pen tip, wherein the switching module detects whether the first conductive pen tip or the second conductive pen tip is coupled
with the connector, wherein when the first conductive pen tip is coupled with the connector, the touch pen is in an active
operation mode under control of the switching module, wherein when the second conductive pen tip is coupled with the connector,
the touch pen is in a passive operation mode under control of the switching module, wherein the switching module comprises:

a circuit board:
a push element disposed within the main body, and contacted with the first conductive pen tip or the second conductive pen
tip, wherein when the push element is pushed by the first conductive pen tip or the second conductive pen tip, the push element
is moved relative to the main body;

a detecting assembly disposed on the circuit board, and detecting the push element, wherein when the push element is detected
by the detecting assembly, the detecting assembly issues an active mode signal; and

a controlling unit disposed on the circuit board, and connected with the detecting assembly, wherein when the active mode
signal is received by the controlling unit, the touch pen is in the active operation mode under control of the controlling
unit, wherein when the active mode signal is not received by the controlling unit, the touch pen is in the passive operation
mode under control of the controlling unit,

a light-emitting element disposed on the circuit board, wherein the light-emitting element is on a first side of the push
element, and emits a light beam; and

a light receiver disposed on the circuit board, wherein the light receiver is on a second side of the push element, and connected
with the controlling unit to receive the light beam, wherein if the light beam is not received by the light receiver, the
active mode signal is outputted from the light receiver to the controlling unit.

US Pat. No. 10,061,673

TESTING SYSTEM USING DIFFERENT OPERATING SYSTEMS TO TEST ELECTRONIC PRODUCTS

PRIMAX ELECTRONICS LTD., ...

1. A testing system using different operating systems to test electronic products, the testing system comprising a first operating system and a second operating system different from the first operating system, the testing system comprising:a master computer comprising a first switch connecting port and a first data connecting port, wherein the first operating system is installed in the master computer;
a slave computer comprising a second switch connecting port and a second data connecting port, wherein the second operating system is installed in the slave computer, and the first switch connecting port and the second switch connecting port are connected with each other; and
a switch device connected with the first switch connecting port of the master computer, the first data connecting port of the master computer, the second data connecting port of the slave computer and an under-test product, wherein after the first data connecting port of the master computer is electrically connected with the under-test product through the switch device, the under-test product is tested by the master computer, wherein after the under-test product is tested by the master computer, the master computer issues a first notification signal from the first switch connecting port and issues a first switching signal from the first switch connecting port to the switch device, wherein in response to the first switching signal, an electric connection between the second data connecting port of the slave computer and the under-test product is established, wherein after the second switch connecting port of the slave computer detects the first notification signal, the slave computer tests the under-test product.

US Pat. No. 9,959,994

KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, comprising:a base plate;
a circuit board located over the base plate, wherein the circuit board comprises at least one circuit board opening;
plural key structures located over the circuit board, wherein when at least one of the key structures is depressed, the at least one key structure is penetrated through a corresponding circuit board opening, wherein the key structure comprises:
a pedestal located over the base plate, wherein the pedestal comprises a pedestal opening, and the pedestal opening is aligned with the corresponding circuit board opening;
an upper cover having an upper cover opening, wherein the pedestal is covered by the upper cover; and
a triggering element disposed on the pedestal and partially penetrated through the upper cover opening;
a pressure sensing layer disposed on the base plate and located under the circuit board, wherein while the at least one key structure is depressed, the at least one key structure provides a pressing force and the pressing force is detected by the pressure sensing layer;
a flexible layer arranged between the pressure sensing layer and the circuit board, wherein when the flexible layer is pressed by the at least one key structure, the pressure sensing layer is pushed by the flexible layer, wherein while the triggering element is depressed, the triggering element is moved relative to the pedestal and a part of the triggering element is penetrated through the pedestal opening and the circuit board opening to press the flexible layer and cause it to push the pressure sensing layer; and
a controlling unit disposed on the circuit board and electrically connected with the pressure sensing layer, wherein the control unit generates a pressure sensing signal according to the pressing force.

US Pat. No. 9,899,164

LUMINOUS KEYBOARD HAVING PLURAL LIGHT GUIDE COVERS CORRESPONDING TO KEY STRUCTURES

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a membrane wiring board comprising plural membrane switches;
plural key structures corresponding to the plural membrane switches, wherein each of the plural key structures comprises a
keycap and an elastic element, wherein the keycap has at least one light-transmissible region, and the elastic element is
arranged between the keycap and the membrane wiring board and comprises a sustaining part, wherein when the keycap is depressed,
the elastic element is compressed, so that the corresponding membrane switch is pushed by the sustaining part, wherein when
the keycap is not depressed, the keycap is returned to an original position in response to an elastic force provided by the
elastic element;

plural light-emitting elements corresponding to the plural key structures; and
plural light guide covers corresponding to the plural key structures, wherein each of the plural light guide covers is disposed
under the corresponding keycap and surrounds the corresponding elastic element, and an upper portion of the elastic element
is penetrated through the light guide cover and contacted with the keycap, wherein each of the plural light guide covers receives
plural light beams from the corresponding light-emitting element, and the plural light beams are guided to the corresponding
keycap by the light guide cover, so that the plural light beams are outputted from the at least one light-transmissible region
of the corresponding keycap.

US Pat. No. 10,032,575

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a key comprising a keycap and a stabilizer bar, wherein the stabilizer bar comprises a transverse bar part and a first hook part, wherein the transverse bar part is pivotally coupled to the keycap, and the first hook part is located at a first end of the transverse bar part;
a base plate connected with the key, and comprising a first connecting structure, wherein the first connecting structure is protruded upwardly from the base plate and connected with the first hook part of the stabilizer bar; and
a membrane circuit board arranged between the key and the base plate, and comprising a membrane switch corresponding to the key, wherein the membrane circuit board comprises a first film layer and a second film layer, and the first film layer and the second film layer are laminated together through a first gel layer, wherein the second film layer comprises a first extension part, and the first extension part is extended toward the first connecting structure and exposed outside the first film layer,
wherein a second gel layer is formed on the first extension part, and the first hook part of the stabilizer bar is moved on the second gel layer while the keycap is moved upwardly or downwardly relative to the base plate.

US Pat. No. 10,020,140

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:plural keys, wherein each of the plural keys comprises a keycap, and at least one specified key of the plural keys comprises a stabilizer bar and a reinforcement element, wherein the stabilizer bar and the reinforcement element are pivotally coupled to the keycap;
a base plate, wherein the plural keys and the stabilizer bar of the at least one specified key are connected with the base plate, and the base plate comprises at least one elastic vibration absorber that is formed on a top surface of the base plate by a screen printing process; wherein the at least elastic vibration absorber comprises plural first vibration absorbers that are aligned with the keycap and the stabilizing bar; and plural third vibration absorbers that are aligned with the reinforcement element; and a membrane circuit board arranged between the plural keys and the base plate, and comprising plural membrane switches corresponding to the plural keys,
wherein while the keycap of the at least one specified key is depressed and moved downwardly relative to the base plate, the at least one elastic vibration absorber absorbs kinetic energy of the keycap, the stabilizer bar and the reinforcement element of the at least one specified key.

US Pat. No. 10,014,341

OPTICAL FINGERPRINT IDENTIFICATION MODULE

PRIMAX ELECTRONICS LTD., ...

1. An optical fingerprint identification module, comprising:a casing;
an image pickup assembly disposed within the casing;
a light-guiding diffusion layer located over the image pickup assembly;
a light-collecting reflective layer located over the light-guiding diffusion layer;
a press plate disposed on the casing and located over the light-collecting reflective layer so as to be pressed;
at least one light source arranged beside at least one lateral side of the light-guiding diffusion layer and the light-collecting reflective layer; and
an optical tunnel structure located under the press plate, and located over the image pickup assembly, wherein the optical tunnel structure is penetrated through the light-collecting reflective layer and a part of the light-guiding diffusion layer, so that the light-collecting reflective layer and the part of the light-guiding diffusion layer are sheathed around the optical tunnel structure,
wherein after a light beam emitted by the at least one light source is introduced into the light-guiding diffusion layer, the light beam is guided and diffused by the light-guiding diffusion layer and collected and reflected by the light-collecting reflective layer, so that the light beam from the at least one light source is transferred between the light-guiding diffusion layer and the light-collecting reflective layer, wherein after the light beam is irradiated on the press plate through the optical tunnel structure, the light beam is reflected to the image pickup assembly so as to be captured by the image pickup assembly.

US Pat. No. 10,002,440

METHOD FOR MEASURING DEPTH OF FIELD AND IMAGE PICKUP DEVICE USING SAME

PRIMAX ELECTRONICS LTD., ...

1. A method for measuring a depth of field, the method comprising steps of:(a) capturing a first image by a first optical lens module, and capturing a second image by the second optical lens module, wherein the first image contains plural phase detection pixel groups, and the first image is segmented into plural imaging areas;
(b) acquiring a first local depth-of-field data of each imaging area according to a difference between the first image and the second image; and
(c) calculating a horizontal image intensity and a vertical image intensity of the first local depth-of-field data corresponding to each imaging area, and determining the first local depth-of-field data or a second local depth-of-field data as a selected local depth-of-field data of the imaging area according to the horizontal image intensity and the vertical image intensity, wherein the second local depth-of-field data is obtained according to at least portions of the plural phase detection pixel groups.

US Pat. No. 9,941,075

KEYBOARD DEVICE

Primax Electronics Ltd., ...

1. A keyboard device, comprising:a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device, the stabilizer bar is connected with the keycap, and comprises a linking bar part and a hook part, wherein the linking bar part is connected with the keycap, and the hook part is located at an end of the linking bar part;
a base plate disposed under the key structure, and connected with the key structure; and
a switch circuit board arranged between the key structure and the base plate, wherein when the switch circuit board is triggered, a key signal is generated, wherein the switch circuit board comprises:
a key switch aligned with the key structure, wherein when the key switch is triggered by the key structure, the key switch generates the key signal;
a soft covering element disposed on the switch circuit board, wherein an accommodation space is defined by the soft covering element and the switch circuit board collaboratively, and the hook part is inserted into the accommodation space, so that the hook part is permitted to be moved within the accommodation space;
an upper wiring plate comprising an upper circuit pattern, wherein the upper circuit pattern is formed on a bottom surface of the upper wiring plate;
a lower wiring plate disposed under the upper wiring plate, and comprising a lower circuit pattern, wherein the lower circuit pattern is formed on a top surface of the lower wiring plate; and
a separation layer arranged between the upper wiring plate and the lower wiring plate, and comprising a perforation, wherein the upper circuit pattern and the lower circuit pattern are separated from each other through the separation layer, and the key switch is defined by the upper circuit pattern, the perforation and the lower circuit pattern collaboratively,
wherein the lower wiring plate has an extension region, and the extension region is protruded out of the upper wiring plate and the separation layer, wherein the soft covering element is adhered on a top surface of the extension region, an end of the accommodation space is closed, and the hook part is inserted into the accommodation space.

US Pat. No. 10,026,566

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device and comprises a first coupling structure, and the stabilizer bar is located under the keycap and fixed in the first coupling structure;
a switch circuit board located under the key structure, wherein when the switch circuit board is triggered, a key signal is generated;
a base plate located under the switch circuit board and connected with the stabilizer bar, wherein the key structure is supported by the base plate; and
a buffering strip, wherein a first end of the buffering strip is fixed in the first coupling structure and contacted with the stabilizer bar, wherein the buffering strip is filled in a gap between the stabilizer bar and the first coupling structure.

US Pat. No. 10,020,138

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device, and the stabilizer bar is connected with the keycap;
a switch circuit board located under the key structure, and comprising a key switch corresponding to the key structure, wherein when the key switch of the switch circuit board is triggered by the key structure, a key signal is generated;
a base plate located under the switch circuit board, and supporting the key structure, wherein the base plate comprises a connecting structure, and the connecting structure is connected with the stabilizer bar; and
a buffering sheath covering the stabilizer bar, wherein the buffering sheath and the stabilizer bar are collaboratively connected with the connecting structure, and the stabilizer bar and the connecting structure are separated from each other through the buffering sheath.

US Pat. No. 9,972,464

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a base plate;
a keycap disposed over the base plate, wherein when a depressing force is received by the keycap, the keycap is moved relative to the base plate; and
a connecting element arranged between the base plate and the keycap, wherein the base plate and the keycap are connected with each other through the connecting element, wherein as the connecting element is swung, the keycap is correspondingly moved relative to the base plate, wherein the connecting element comprises:
a first frame located at a first side of the key structure, wherein a first end of the first frame is connected with the base plate, a second end of the first frame is connected with the keycap, the first frame comprises a first linking part, and the first linking part is formed on the second end of the first frame; and
a second frame located at a second side of the key structure, wherein a first end of the second frame is connected with the base plate, a second end of the second frame is connected with the keycap, the second frame comprises a second linking part, and the second linking part is formed on the second end of the second frame and contacted with the first linking part, wherein when the depressing force is received by the keycap, the first frame is swung relative to the second frame, and the keycap is correspondingly moved in response to a friction between the first linking part and the second linking part; wherein the first frame further comprises a first coupling part formed on the second end of the first frame, wherein the first coupling part is connected with a first bulge of the keycap, and the first coupling part is rotatable relative to the first bulge, wherein the first linking part is formed on an outer surface of the first coupling part; and wherein the second frame further comprises a second coupling part formed on the second end of the second frame, wherein the second coupling part is connected with a second bulge of the keycap, and the second coupling part is rotatable relative to the second bulge, wherein the second linking part is formed on an outer surface of the second coupling part.

US Pat. No. 9,959,721

ANTI-THEFT SYSTEM AND OPERATING METHOD THEREOF

Primax Electronics Ltd., ...

1. An anti-theft system, comprising:a wearable device comprising a first wireless module, a first processing module and a first positioning module; and
a portable electronic device comprising a second wireless module, a second processing module and a second positioning module, wherein the first wireless module and the second wireless module are in a wireless connection with each other, and the second wireless module detects a received signal strength indicator value of the wireless connection,
wherein if the received signal strength indicator value is lower than a predetermined signal strength value, the first positioning module and the second positioning module are enabled to respectively generate plural wearable device position data and plural portable electronic device position data within a predetermined time period, and the second processing module calculates a displacement of the portable electronic device according to the plural wearable device position data and the plural portable electronic device position data and determines whether a warning mode is enabled according to the displacement.

US Pat. No. 9,959,990

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising: a key structure comprising a keycap and a stabilizer bar, wherein the keycap is exposed outside the keyboard device, the stabilizer bar is connected with the keycap, and comprises a linking bar part and a hook part, wherein the linking bar part is connected with the keycap, and the hook part is located at an end of the linking bar part; a switch circuit board located under the key structure, and comprising a key switch corresponding to the key structure, wherein when the key switch of the switch circuit board is triggered by the key structure, a key signal is generated; a base plate located under the switch circuit board, and supporting the key structure, wherein the base plate comprises a connecting structure, and the connecting structure is connected with the hook part, so that the stabilizer bar is connected with the base plate; and a buffering element coupled with the connecting structure, wherein the hook part and the connecting structure are separated from each other through the buffering element; wherein the buffering element comprises: an upper buffering part contacted with a top surface of the connecting structure, wherein when the keycap is depressed, the upper buffering part is contacted with the keycap to absorb an impact from the keycap; a lower buffering part contacted with a bottom surface of the connecting structure and arranged between the connecting structure and the hook part, wherein the hook part and the connecting structure are separated from each other through the lower buffering part; and an extension part arranged between the upper buffering part and the lower buffering part and connected with the upper buffering part and the lower buffering part.

US Pat. No. 10,061,968

METHOD FOR ASSEMBLING FINGERPRINT IDENTIFICATION MODULE AND FINGERPRINT SENSOR CUTTING METHOD

PRIMAX ELECTRONICS LTD., ...

1. A fingerprint sensor cutting method, comprising steps of:(A) cutting a sensing strip according to a predetermined size, so that plural unseparated fingerprint sensors are formed, wherein the plural unseparated fingerprint sensors are connected with each other through thin junction slices, and the thin junction slices are located near bottom surfaces of the plural unseparated fingerprint sensors;
(B) turning the cut sensing strip upside down and fixing the cut sensing strip on a fixing base, so that the bottom surfaces of the plural unseparated fingerprint sensors are exposed, wherein the fixing base comprises a plurality of recesses respectively corresponding to the unseparated fingerprint sensors, and one of the recesses has a portion having a width less than a width of one of the unseparated fingerprint sensors, and a top surface of the one of the unseparated fingerprint sensors is in contact with the portion; and
(C) cutting off the thin junction slices to produce plural individual fingerprint sensors and form plural concave structures in the bottom surfaces of the plural individual fingerprint sensors, wherein a size of the bottom surface of each individual fingerprint sensor is smaller than the predetermined size.

US Pat. No. 10,020,139

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a base plate;
an illumination module disposed on the base plate, and emitting a light beam; a switch circuit board disposed on the illumination module, wherein when the switch circuit board is triggered, a key signal is generated;
a metallic elastic element disposed on the switch circuit board, wherein the metallic elastic element is subjected to deformation to trigger the switch circuit board when the metallic elastic element is pressed, or the metallic elastic element provides an elastic force;
a supporting element made of a soft, deformable material and disposed on the switch circuit board, and located beside the metallic elastic element;
a metallic pressing plate, wherein an edge of the metallic pressing plate is fixed on the supporting element, and the supporting element is deformed and the metallic pressing plate is swung relative to the base plate to push the metallic elastic element in response to an external force, wherein the metallic pressing plate has an opening; and
a covering member covering the base plate, the illumination module, the switch circuit board, the metallic elastic element, the supporting element and the metallic pressing plate, wherein the covering member has a light-transmissible region corresponding to the opening, wherein the light beam passes through the switch circuit board, the opening and the light-transmissible region sequentially, so that the key structure is illuminated;
wherein the metallic pressing plate further comprises: a main body swingable relative to the base plate; a fixing part located at the edge of the metallic pressing plate and connected with the main body, wherein the fixing part is a bent structure relative to the main body, and the edge of the metallic pressing plate is fixed on the supporting element through the fixing part; and a triggering part disposed on a bottom surface of the main body and contacted with the metallic elastic element.

US Pat. No. 10,008,346

WATERPROOF KEYBOARD

Primax Electronics Ltd., ...

1. A waterproof keyboard, comprising:a keypad, comprising a compressive waterproof layer, a plate structure, and a plurality of through-holes, the compressive waterproof layer covering the plate structure, and the through-holes passing through the compressive waterproof layer and the plate structure;
a plurality of keys, passing through the through-hole, and each of the keys comprising:
a shell, an opening portion being formed on an upper surface of the shell, and a slot being formed on a lateral surface of the shell, wherein the shell passes through the compressive waterproof layer and the plate structure, and the compressive waterproof layer and the plate structure are clamped by the slot, to enable the shell to be sealed with the compressive waterproof layer; and
a trigger mechanism, passing through the opening portion of the shell, to receive an external force so as to move relative to the shell; and
a circuit board, located below the trigger mechanism, and to be triggered by movement of the trigger mechanism.

US Pat. No. 9,950,623

VEHICULAR PROJECTION SYSTEM

PRIMAX ELECTRONICS LTD., ...

1. A vehicular projection system for a vehicle, the vehicular projection system comprising:a first information collector issuing a first driving information and a first wireless transmission request corresponding to the first driving information;
a second information collector issuing a second driving information and a second wireless transmission request corresponding to the second driving information;
a time-division multiplexing device wirelessly connected with the first information collector and the second information collector, and determining a wireless transmission method of at least one of the first driving information and the second driving information according to a result of detecting the first wireless transmission request and the second wireless transmission request, wherein after the first driving information and the second driving information are received, the time-division multiplexing device generates a layout image according to the first driving information and the second driving information and outputs the layout image, wherein the time-division multiplexing device comprises:
a first storage element temporarily storing the first driving information and the second driving information;
a fist wireless transmission module connected with the first storage element, and receiving the first driving information or the second driving information according to a first wireless transmission technology;
a second wireless transmission module connected with the first storage element, and receiving the second driving information according to a second wireless transmission technology; and
a control unit connected with the first storage element, the first wireless transmission module and the second wireless transmission module, wherein the control unit determines the wireless transmission method of the at least one of the first driving information and the second driving information according to a receiving sequence of the first wireless transmission request and the second wireless transmission request, a file property of the first driving information corresponding to the second wireless transmission request, a file property of the second driving information corresponding to the second wireless transmission request, a wireless transmission capability information corresponding to the first wireless transmission request and wireless transmission capability information corresponding to the second wireless transmission request; and
a projection mechanism wirelessly connected with the time-division multiplexing device, and projecting the layout image onto a glass plate of the vehicle, wherein the layout image contains the first driving information and the second driving information.

US Pat. No. 10,095,322

MOUSE ROLLER MODULE

PRIMAX ELECTRONICS LTD., ...

1. A mouse roller module, comprising:a roller comprising a recess, wherein the recess has a toothed surface;
a swinging arm comprising a contacting part, a linking part and an adjusting part, wherein the contacting part is connected with a first elastic element, and the first elastic element provides an elastic force to the contacting part, so that the contacting part provides a pressing force to the toothed surface;
a movable block, wherein when the adjusting part is pushed by the movable block, the swinging arm performs a swinging motion by using the linking part as a fulcrum; and
an adjusting device for adjusting a position of a piston, wherein the movable block is pushed by the piston,
wherein while the position of the piston is adjusted by the adjusting device, the movable block is moved and the swinging arm performs the swinging motion, wherein the pressing force of the contacting part provided to the toothed surface is adjusted in response to the swinging motion.

US Pat. No. 10,061,962

FINGERPRINT IDENTIFICATION MODULE AND MANUFACTURING METHOD THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A method for manufacturing a fingerprint identification module, the method comprising steps of:(a) fixing plural fingerprint sensor dies on a substrate, wherein plural electrical contacts are formed on the substrate and arranged around each fingerprint sensor die;
(b) connecting the plural fingerprint sensor dies with the substrate by a wire-bonding process, so that the plural fingerprint sensor dies are electrically connected with the substrate;
(c) forming a covering adhesive layer on top surfaces of the plural fingerprint sensor dies, wherein the top surface of each fingerprint sensor die has a sensing region, the covering adhesive layer is formed on the corresponding sensing region, and the covering adhesive layer is not contacted with the plural wires;
(d) placing a cover plate on the covering adhesive layer;
(e) allowing the plural fingerprint sensor dies and the covering adhesive layer to be molded together through a mold compound layer, so that the distance between the top surface of the fingerprint sensor dies and the cover plate is kept unchanged;
(f) performing a cutting process to produce plural individual fingerprint sensor units;
(g) fixing the plural individual fingerprint sensor units on a flexible circuit board; and
(h) cutting the flexible circuit board, so that plural fingerprint identification modules are produced.

US Pat. No. 10,061,395

BUTTON STRUCTURE, MANUFACTURING METHOD THEREOF, AND GAME CONTROLLER USING THE SAME

PRIMAX ELECTRONICS LTD., ...

1. A button structure, comprising:a base, having an upper surface and made from a first material;
a graphic piece, integrally formed with the base and at least partially protruding out beyond the upper surface of the base, wherein the graphic piece is made from a second material; and
a transparent piece, wrapping the base and the graphic piece and made from a third material, wherein a heat resistance temperature of the third material is lower than a heat resistance temperature of the first material and a heat resistance temperature of the second material.

US Pat. No. 9,941,068

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a pedestal comprising a sliding groove;
an upper cover having an opening, wherein the pedestal is covered by the upper cover;
a triggering element disposed on the pedestal and partially penetrated through the opening, wherein when the triggering element is depressed, the triggering element is moved relative to the pedestal;
a spring strip movably disposed within the sliding groove, and located beside the triggering element, wherein as the triggering element is depressed and moved relative to the pedestal, the spring strip is contacted with the triggering element, so that the spring strip is moved within the sliding groove to collide with the upper cover and a sound is generated; and
a circuit board, wherein the circuit board is disposed under the pedestal, and the upper cover comprises;
a first triggering contact disposed on an inner surface of the upper cover and electrically connected with the circuit board; and
a second triggering contact disposed on the inner surface of the upper cover, separated from the first triggering contact, and electrically connected with the circuit board,
wherein when the spring strip is contacted with the first triggering contact and the second triggering contact, the first triggering contact and the second triggering contact are electrically connected with each other through the spring strip, so that the circuit board generates a key signal.

US Pat. No. 9,929,596

WIRELESS POWER TRANSMISSION DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A wireless power transmission device for transmitting an electric power to a receiver coil of an electronic device, the wireless power transmission device comprising:a main body, wherein the electronic device is placed on the main body; and
a transmitter coil plate disposed within the main body, and generating an electromagnetic effect, wherein in response to the electromagnetic effect, the transmitter coil plate outputs the electric power to the receiver coil, wherein the transmitter coil plate comprises:
a coil plate body comprising a top surface and a bottom surface;
a first transmitter coil structure disposed on the top surface of the coil plate body, wherein the first transmitter coil structure is swirled along a first direction, so that an electric current flows through the first transmitter coil structure along the first direction, wherein the first transmitter coil structure further comprises:
a first curvy segment;
a second curvy segment located at a side of the first curvy segment;
a first junction part disposed on the first curvy segment, and running through the top surface and the bottom surface of the coil plate body; and
a second junction part disposed on the second curvy segment, and running through the top surface and the bottom surface of the coil plate body; and
a second transmitter coil structure disposed on the bottom surface of the coil plate body, and connected with the first transmitter coil structure, wherein the second transmitter coil structure is swirled along the first direction, wherein plural ring-shaped closed coils are defined by the first transmitter coil structure and the second transmitter coil structure collaboratively, wherein the second transmitter coil structure further comprises:
a third curvy segment corresponding to the first curvy segment, wherein the third curvy segment is connected with the first junction part, and the first curvy segment and the third curvy segment are collaboratively defined as a first ring-shaped closed coil of the plural ring-shaped closed coils; and
a fourth curvy segment corresponding to the second curvy segment, wherein the fourth curvy segment is connected with the second junction part, and the second curvy segment and the fourth curvy segment are collaboratively defined as a second ring-shaped closed coil of the plural ring-shaped closed coils.

US Pat. No. 9,892,874

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:
a keypad module exposed to a top surface of the luminous keyboard;
at least one light-emitting element disposed under the keypad module, and emitting at least one light beam;
a light guide plate disposed under the keypad module, wherein the at least one light beam is subjected to total internal reflection
within the light guide plate and guided to the keypad module by the light guide plate; and

a reflecting plate disposed over or under the light guide plate, wherein a portion of the at least one light beam that is
not subjected to total internal reflection within the light guide plate is reflected by the reflecting plate, wherein the
reflecting plate has at least one light amount control structure, and the at least one light amount control structure is disposed
on a top surface or a bottom surface of the reflecting plate and located near the at least one light-emitting element, wherein
when the portion of the at least one light beam that is not subjected to total internal reflection within the light guide
plate is transferred through the at least one light amount control structure, a reflected fraction of the at least one light
beam is reduced by the at least one light amount control structure, wherein the at least one light amount control structure
has a corresponding texturing structure, wherein the texturing structure is disposed on a top surface or a bottom surface
of at least one light absorption structure, wherein the texturing structure increases a number of times the at least one light
beam is internally reflected so as to reduce the reflected fraction of the at least one light beam.

US Pat. No. 10,115,542

KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A keyboard, disposed in a notebook computer, wherein the keyboard comprises:a first baseboard;
a second baseboard, disposed at one side of the first baseboard;
a deformation element, disposed between the first baseboard and the second baseboard, separately connected to the first baseboard, the second baseboard, and a power supply circuit of the notebook computer, and configured to deform according to a voltage signal provided by the power supply circuit;
a key cap, located above the first baseboard, the second baseboard, and the deformation element and capable of moving relative to the first baseboard and the second baseboard; and
a connecting element, separately connected to the key cap, the first baseboard, and the second baseboard, wherein the deformation element drags the second baseboard to move in a first direction when the deformation element receives the voltage signal and therefore deforms to be in an extended state, so that the key cap is at a first height; and the deformation element pushes the second baseboard to move in a second direction when the deformation element does not receive the voltage signal and therefore deforms to be in a bent state, so that the key cap is at a second height that is shorter than the first height.

US Pat. No. 10,020,135

KEY STRUCTURE AND SCISSORS-TYPE CONNECTING MEMBER THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A scissors-type connecting member, comprising:a first frame comprising a rotating shaft, wherein the rotating shaft is disposed on an outer surface of the first frame; and
a second frame comprising a mounting part, wherein the mounting part is disposed on an inner surface of the second frame, and the mounting part comprises an entrance, a pivot hole and a stopper, wherein after the rotating shaft is introduced into the pivot hole through the entrance, the first frame is pivotally coupled to the second frame, wherein the stopper is located near the entrance or arranged between the entrance and the pivot hole, and a position of the rotating shaft is limited between the stopper and the pivotal hole by the stopper; wherein a top surface of the stopper is located near the entrance, and the stopper has a stopper width corresponding to an axial length of the rotating shaft, the entrance has an entrance width corresponding to the axial length of the rotating shaft; wherein the stopper width and the entrance width are both smaller than the axial length of the rotating shaft.

US Pat. No. 10,134,543

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:plural keys;
a membrane circuit board located under the plural keys, and comprising plural electrical contacts, wherein the plural keys are aligned with the plural electrical contacts, respectively, wherein when one of the plural keys is pressed by a user, the corresponding electrical contact is triggered;
a backlight module located under the membrane circuit board, and comprising a light-shading plate, a light guide plate and a reflecting plate, wherein the light-shading plate, the light guide plate and the reflecting plate are sequentially stacked on each other from top to bottom, the light-shading plate comprises a first cutting hole and at least one first cutting hole periphery around the first cutting hole, the light guide plate comprises a perforation, the reflecting plate comprises a second cutting hole and at least one second cutting hole periphery around the second cutting hole, and the first cutting hole, the perforation and the second cutting hole are aligned with each other, wherein the at least one first cutting hole periphery of the light-shading plate and the at least one second cutting hole periphery of the reflecting plate are made of a flexible material, and a top surface of the at least one second cutting hole periphery is attached on a bottom surface of the first cutting hole periphery through the perforation;
a supporting plate, and the supporting plate is arranged between the membrane circuit board and the backlight module, wherein the supporting plate includes plural fixing structures, and the plural fixing structures of the supporting plate are connected with scissors-type connecting elements of the corresponding keys through corresponding openings of the membrane circuit board; and
an operation element and a soft cable, and the operation element is fixed on the supporting plate, wherein while the soft cable is penetrated upwardly through the second cutting hole of the reflecting plate, the perforation of the light guide plate and the first cutting hole of the light-shading plate, the at least one first cutting hole periphery and the at least one second cutting hole periphery are pushed up by the soft cable, so that the soft cable is in communication with the operation element.

US Pat. No. 10,108,842

METHOD FOR ASSEMBLING FINGERPRINT IDENTIFICATION MODULE

PRIMAX ELECTRONICS LTD., ...

1. A method for assembling a fingerprint identification module, the method comprising steps of:(A) providing a sensing strip, wherein the sensing strip comprises plural unseparated fingerprint sensors, and the plural unseparated fingerprint sensors are connected with each other through junction parts, wherein the junction part has a first thickness;
(B) cutting a top surface of the sensing strip according to a predetermined size, so that plural unseparated fingerprint sensors are defined and the junction part has a second thickness, wherein the second thickness is smaller than the first thickness;
(C) performing a paint-spraying process to spray paint on the cut sensing strip;
(D) turning the cut sensing strip upside down and fixing the cut sensing strip on a fixing base, and removing the junction parts, so that plural individual fingerprint sensors are produced, wherein the fixing base comprises a plurality of recesses respectively corresponding to the unseparated fingerprint sensors, and one of the recesses has a portion having a width less than a width of one of the unseparated fingerprint sensors, and a top surface of the one of the unseparated fingerprint sensors is in contact with the portion; and
(E) combining one of the plural individual fingerprint sensor and a circuit board together, so that the fingerprint identification module is assembled.

US Pat. No. 10,131,226

HUMAN PERCEPTION TEST SYSTEM AND METHOD THEREOF

PRIMAX ELECTRONICS LTD., ...

1. A human perception test system, which performs a human perception test by using an electronic device, wherein the system comprises:a display module;
a micro control unit;
a memory unit, configured to store a human perception test program; and
a control unit, wherein
the micro control unit executes the human perception test program and presents on the display module a human perception test interface; the human perception test interface is configured to display a graphic box and an arbitrarily moving graphic; a user operates the control unit to control the graphic box, so that the graphic box and the graphic perform synchronous displacement; when the period of time of the synchronous displacement is equal to a preset time value, two moving speeds of the graphic box within the period of time of the synchronous displacement are acquired; and the micro control unit determines, according to an absolute value of a difference between the two moving speeds, whether the user succeeds in the human perception test.

US Pat. No. 10,108,276

MOUSE DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A mouse device in communication with a computer system for controlling movement of a cursor of the computer system, the mouse device comprising:a mouse casing comprising a casing opening and a supporting bracket, wherein the casing opening is formed in a bottom part of the mouse casing and runs through the bottom part of the mouse casing, and the supporting bracket is disposed on the bottom part of the mouse casing and disposed within the mouse casing;
a switching module disposed on the supporting bracket and located over the casing opening, wherein the switching module is rotatable relative to the mouse casing;
a main board disposed within the mouse casing and electrically connected with the switching module;
a first sensing module disposed on a first side of the switching module, wherein in response to rotation of the switching module, a part of the first sensing module is selectively exposed outside the casing opening; and
a second sensing module disposed on a second side of the switching module, wherein in response to rotation of the switching module, a part of the second sensing module is selectively exposed outside the casing opening,
wherein when one of the first sensing module and the second sensing module is exposed outside the casing opening under control of the switching module, a corresponding moving resolution of the mouse device is selected.

US Pat. No. 10,165,611

BLUETOOTH PAIRING SYSTEM AND OPERATING METHOD THEREOF

Primax Electronics Ltd., ...

1. A Bluetooth pairing system, comprising: an external device comprising a Bluetooth module, a first transmission interface, a USB controller and a non-volatile memory, wherein the first transmission interface is compatible with a USB transmission format, and the USB controller is connected with the Bluetooth module and the first transmission interface; and a host device comprising a second transmission interface and a processor, wherein the second transmission interface is compatible with the USB transmission format, and the processor is connected with the second transmission interface, wherein when the first transmission interface is connected with the second transmission interface, a standard handshaking message complying with a USB communication protocol is issued from the processor to the external device through the second transmission interface and the first transmission interface, wherein after the standard handshaking message is received by the USB controller of the external device, a device descriptor of the external device is transmitted from the USB controller to the host device to complete a handshaking operation, wherein the device descriptor contains a vendor identification code (VID), a product identification code (PID), a product string and a product type of the external device and a target communication address of the Bluetooth module; wherein when the external device is powered on, the USB controller acquires the target communication address from the Bluetooth module; and when the target communication address is different from a Bluetooth communication address in the non-volatile memory, the USB controller stores the target communication address in the non-volatile memory and records the target communication address in the device descriptor of the external device.

US Pat. No. 10,139,585

MULTI-LENS CAMERA MODULE AND ASSEMBLING PROCESS THEREOF

PRIMAX ELECTRONICS LTD., ...

8. A multi-lens camera module, comprising:a casing;
a first circuit board fixed on the casing and accommodated within the casing;
a first photosensitive element installed on a top surface of the first circuit board;
a first lens module fixed on the top surface of the first circuit board and aligned with a top side of the first photosensitive element, wherein the first lens module comprises a first lens element and a first lens holder, the first lens element is supported by the first lens holder, and the first lens element has a first optical axis;
a second circuit board fixed on the casing and accommodated within the casing;
a second photosensitive element installed on a top surface of the second circuit board; and
a second lens module fixed on the top surface of the second circuit board and aligned with a top side of the second photosensitive element, wherein the second lens module comprises a second lens element and a second lens holder, the second lens element is supported by the second lens holder, and the second lens element has a second optical axis, wherein the second optical axis of the second lens element is in parallel with the first optical axis of the first lens element,
wherein the second lens holder is penetrated through a receiving opening of the casing, a lower connection part of the second lens holder is located below the receiving opening and adhered onto the casing through a bottom glue, and an upper connection part of the second lens holder is located above the receiving opening and adhered onto the casing through a top glue.

US Pat. No. 10,139,886

INPUT MODULE

PRIMAX ELECTRONICS LTD., ...

1. A method for preventing a computer from entering a hibernation mode, comprising:operating an input device by a user, wherein the input device is in communication with the computer and comprises a processing unit, wherein when the input device is operated by a user, the processing unit issues a control signal to the computer, so that the computer executes a command corresponding to the control signal; and
running a control program installed in the computer, wherein if no control signal is issued to the computer by the processing unit for a predetermined time period after the control program is opened, the computer issues a command signal to the processing unit, wherein after the command signal is received by the processing unit, the processing unit issues at least one response signal to the computer so as to prevent the computer from entering a hibernation mode; wherein the at least one response signal contains a first trajectory moving signal and a second trajectory moving signal, wherein after the first trajectory moving signal has been issued for a specified time interval, the processing unit issues the second trajectory moving signal, wherein a direction corresponding to the first trajectory moving signal and a direction corresponding to the second trajectory moving signal are opposed to each other.

US Pat. No. 10,089,517

FINGERPRINT IDENTIFYING MODULE

PRIMAX ELECTRONICS LTD., ...

1. A fingerprint identifying module, comprising:a fingerprint identifying and sensing element, configured to detect a fingerprint image of a finger;
a support board, configured to bear the fingerprint identifying and sensing element thereon, wherein the support board comprises an accommodation groove; and
a metal ring, sleeved on the fingerprint identifying and sensing element and the support board, and partially exposed outside the fingerprint identifying module, wherein the metal ring comprises a fixing column which is formed by extending a lower surface of the metal ring, so as to extend into the accommodation groove to fix the metal ring on the support board.

US Pat. No. 10,141,135

KEYBOARD

PRIMAX ELECTRONICS LTD, ...

1. A keyboard, comprising: a key, comprising: a keycap, exposed outside the keyboard and comprising: a first hook, disposed on an inner surface of the keycap and located on an outer side of the keycap, wherein the first hook has a first opening; and a second hook, disposed on the inner surface of the keycap and located in a central area of the keycap, wherein the second hook has a second opening; and a balance bar, disposed below the keycap and fastened in the first opening and the second opening; a switch circuit board, located below the key and used to be triggered by the key to output a key signal; and a base plate, disposed below the switch circuit board, connected to the balance bar, and used to carry the key, wherein the first opening has a round shape, and the second opening has an elliptic shape; wherein a width of the first opening is less than a width of the second opening, so that the balance bar is fastened in the first opening and the second opening.

US Pat. No. 10,251,264

MEMBRANE CIRCUIT STRUCTURE WITH FUNCTION EXPANDABILITY

PRIMAX ELECTRONICS LTD., ...

1. A membrane circuit structure with function expandability, the membrane circuit structure comprising:a substrate comprising a first region and at least one second region, wherein the at least one second region is arranged near the first region;
a lower circuit layer printed on the first region, wherein the lower circuit layer is made of a first conductive material; and
a covering layer electroplated on a portion of a surface of the lower circuit layer, wherein the covering layer is made of a second conductive material and in contact with the lower circuit layer so as to enhance the electrical conductivity of the lower circuit layer,
wherein at least one expansion line is welded on the corresponding second region, and electrically connected with the covering layer and a corresponding function-expanding unit.

US Pat. No. 10,153,106

KEYBOARD STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard structure, comprising:a keycap;
a transparent membrane layer disposed under the keycap, comprising:
a first opening corresponding to the keycap;
a hard membrane layer, having at least one extension portion that is formed at an inner edge of the first opening; and
a spacer layer, disposed under the hard membrane layer and used for forming a gap; and
an elastic element, disposed between the keycap and the transparent membrane layer, and having a press portion;
wherein when the keycap is pressed with an external force, the elastic element is deformed to enable the press portion to move downward and abut against the at least one extension portion, so that the at least one extension portion generates a bending deformation in the gap; and when the external force is released, the elastic element is elastically recovered so that the press portion moves away from the at least one extension portion, and the at least one extension portion is elastically recovered and generates a sound.

US Pat. No. 10,141,237

FINGERPRINT RECOGNITION MODULE AND MANUFACTURING METHOD THEREFOR

PRIMAX ELECTRONICS LTD., ...

1. A manufacturing method for a fingerprint recognition module, comprising the following steps:(a) directly connecting and fixing a die to a flexible printed circuit (FPC) board, and electrically connecting the die to the FPC board;
(b) coating an adhesive layer on an upper surface of the die;
(c) covering the adhesive layer with a cover plate, to adhere the cover plate to the adhesive layer; and
(d) applying low pressure injection modeling encapsulation to an encapsulation space defined between the cover plate and the FPC board, so as to form an encapsulation layer in the encapsulation space, wherein step (d) further comprises the following steps:
(d1) placing the FPC board, the die, the adhesive layer, and the cover plate together into a mold;
(d2) adjusting pressure of the mold into a range of 1.5 to 40 bars; and
(d3) injecting a hot melt material into the mold to make the hot melt material flow into the encapsulation space and be cured in the encapsulation space to form the encapsulation layer, wherein the encapsulation layer seals the die.

US Pat. No. 10,133,367

AIR PRESSURE SENSING TYPE MOUSE

PRIMAX ELECTRONICS LTD., ...

1. An air pressure sensing type mouse, comprising:a housing having a top surface, wherein the top surface has a first opening, a second opening and a third opening;
a circuit board disposed within the housing;
plural air pressure sensors installed on the circuit board, and including a middle air pressure sensor, a right air pressure sensor and a left air pressure sensor, wherein the middle air pressure sensor is aligned with the first opening to sense an ambient airflow through the first opening and generate a first sensed value, the right air pressure sensor is aligned with the second opening to sense the ambient airflow through the second opening and generate a second sensed value, and the left air pressure sensor is aligned with the third opening to sense the ambient airflow through the third opening and generate a third sensed value;
a processor installed on the circuit board and electrically connected with the middle air pressure sensor, the right air pressure sensor and the left air pressure sensor, wherein the processor comprises a middle signal generator and a comparing unit, the middle signal generator is connected with the middle air pressure sensor to generate a first pressing signal or a vertical displacement signal, the comparing unit is connected with the middle air pressure sensor, the right air pressure sensor, the left air pressure sensor and the middle signal generator, and the comparing unit stores a threshold value; and
a vent, wherein the vent is formed in the top surface of the housing, and the ambient airflow that inputs into the housing further exits from the vent,
wherein when the airflow inputs into the housing through the first opening, the second opening and the third opening simultaneously, the comparing unit receives the first sensed value, the second sensed value and the third sensed value, and if the first sensed value, the second sensed value and the third sensed value are all higher than the threshold value, the comparing unit generates a switching command to the middle signal generator, wherein when only the middle signal generator receives the first sensed value, the middle signal generator generates the first pressing signal according to the first sensed value, wherein when the middle signal generator receives the switching command, the middle signal generator generates the vertical displacement signal according to the first sensed value.

US Pat. No. 10,254,467

BACKLIGHT STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A backlight structure, comprising:a light source module, having a first slant surface, wherein a slot is provided on the first slant surface, and the slot is configured to accommodate a light emitting element, wherein the slot divides the first slant surface into an upper guiding angle slant surface and a lower guiding angle slant surface;
a light guiding module, having a light guiding plate, a light shielding layer, and a reflecting layer, wherein a second slant surface is provided at a side of the light guiding module, and wherein the second slant surface is constructed by a slant surface of the light shielding layer, a slant light incident surface of the light guiding plate, and a slant surface of the reflecting layer; and
a baseplate, configured to bear the light source module and the light guiding module, wherein the light source module is engaged with the second slant surface of the light guiding module by means of the first slant surface and wherein the light shielding layer covers the top of the light source module, and the upper guiding angle slant surface of the light source module closely adjoins the slant surface of the light shielding layer and the slant light incident surface of the light guiding plate to form a closed structure having no slit, and wherein the lower guiding angle slant surface of the light source module closely adjoins the slant light incident surface of the light guiding plate and the slant surface of the reflecting layer to form a closed structure having no slit.

US Pat. No. 10,235,549

JIG AND MANUFACTURING METHOD FOR FINGERPRINT IDENTIFICATION MODULE

PRIMAX ELECTRONICS LTD., ...

1. A jig for a fingerprint identification module, the jig comprising:a base comprising plural accommodation spaces, wherein a circuit board and a fingerprint sensor fixed on the circuit board are accommodated within the corresponding accommodation space;
a top cover comprising plural perforations corresponding to the plural accommodation spaces, wherein when an output element is penetrated through a specified perforation of the plural perforations corresponding to the circuit board and moved within the specified perforation, an isolation material is outputted from the output element and placed on a periphery of a junction between the circuit board and the fingerprint sensor, wherein the top cover is fixed on the base in response to a magnetic attraction force; and
a rotating shaft connected with the base or the top cover, wherein when the rotating shaft is driven and rotated, the base and the top cover fixed on the base are synchronously rotated.

US Pat. No. 10,209,784

COMBINATION TYPE MOUSE

Primax Electronics Ltd., ...

1. A combination type mouse, comprising:a supporting plate having an installation surface, wherein the installation surface is located at a top side of the supporting plate;
a lower cover plate, wherein a bottom side of the supporting plate has a connection surface, and the lower cover plate is connected with the connection surface of the supporting plate;
a main circuit board installed on the installation surface;
plural main connectors disposed on the main circuit board and electrically connected with the main circuit board;
an input module comprising a first connector and a connecting recess, wherein the first connector is electrically connected with a first main connector of the plural main connectors, wherein the input module comprises a first shell, wherein the connecting recess is formed in a surface of the first shell, the first connector is disposed within the first shell, the first connector comprises a first insertion terminal, and the first insertion terminal is inserted into and electrically connected with the first main connector;
a control module comprising a second connector and a connecting part, wherein the second connector is electrically connected with a second main connector of the plural main connectors, and the connecting part is connected with the connecting recess, wherein the control module comprises a second shell, wherein the connecting part is protruded externally from the second shell, the second connector is disposed within the second shell, the second connector comprises a second insertion terminal, and the second insertion terminal is inserted into and electrically connected with the second main connector; and
a power module, comprising a third shell and a third connector, wherein the third shell is coupled with the second shell, the third connector is disposed within the third shell, the third connector comprises a third insertion terminal, and the third insertion terminal is inserted into and electrically connected with a third main connector of the plural main connectors;
wherein after the input module receives an input signal, the input signal is transmitted from the input module to the main circuit board through the first connector and the first main connector, and the input signal is further transmitted from the main circuit board to the control module through the second main connector and the second connector.

US Pat. No. 10,147,568

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:a base plate;
a connecting element located over the base plate and connected with the base plate; and
a keycap exposed outside the keyboard device and connected with the connecting element, wherein the keycap comprises an elastic hook that is connected with the connecting element, and the elastic hook is made of an elastic material,
wherein the connecting element comprises:
a first frame, wherein a first end of the first frame is connected with the elastic hook, and a second end of the first frame is connected with the base plate; and
a second frame combined with the first frame and swung relative to the first frame, wherein a first end of the second frame is connected with the base plate, and a second end of the second frame is connected with an open-type hook of the keycap.

US Pat. No. 10,146,327

INPUT SYSTEM AND OPERATING METHOD THEREOF

Primax Electronics Ltd., ...

1. An input system, comprising:a memory unit storing n hot-key profiles and n fingerprint files corresponding to the n hot-key profiles;
a fingerprint detecting unit reading a fingerprint of a first user and issuing a first data corresponding to the fingerprint of the first user;
an input interface receiving a first hot-key input of the first user; and
a processing unit connected with the memory unit, the fingerprint detecting unit and the input interface, wherein the processing unit recognizes the first user according to a result of comparing the first data with the n fingerprint files, selects a first hot-key profile corresponding to the first user from the n hot-key profiles, and converts the first hot-key input into a first function input according to the first hot-key profile;
wherein each of the n hot-key profiles records m hot-key settings, each of the m hot-key settings is a macro instruction corresponding to one hot-key input and one function input, and n and m are integers greater than 1; and
wherein each of the n hot-key profiles has a total of a function modes, and each of the plural function modes corresponds to b hot-key settings, wherein a and b are positive integers, a and/or b is greater than 1, and m=a×b.

US Pat. No. 10,083,808

LUMINOUS KEYBOARD WITH GAMING FUNCTION

PRIMAX ELECTRONICS LTD, ...

1. A luminous keyboard with a gaming function, the luminous keyboard comprising:a gaming program, wherein when the gaming program is executed, a game is performed;
plural keys exposed outside the luminous keyboard, wherein when one of the plural keys is pressed down, a corresponding pressing signal is generated;
plural light-emitting elements aligned with the plural keys, respectively, wherein when one of the plural light-emitting elements is turned on to emit a light beam, the corresponding key is illuminated; and
a control unit connected with the plural keys, the plural light-emitting elements and the gaming program, wherein the control unit turns on or turns off the plural light-emitting elements according to settings of the gaming program, or the control unit turns off the light-emitting element corresponding to the illuminated key when the control unit receives the pressing signal corresponding to the illuminated key, and while the gaming program is executed to perform the game and the control unit turns on the light-emitting element, the gaming program calculates a gaming score by judging whether the pressing signal corresponding to the illuminated key is received by the control unit within a predetermined time interval, wherein if the pressing signal corresponding to the illuminated key is received by the control unit within the predetermined time interval, the gaming program increases the gaming score and the control unit turns off the light-emitting element corresponding to the illuminated key, wherein if the pressing signal corresponding to the illuminated key is not received by the control unit within the predetermined time interval, the gaming program does not increase or decrease the gaming score and the control unit controls the light-emitting element corresponding to an unilluminated key to emit the light beam.

US Pat. No. 10,265,979

THERMOSENSITIVE PRINTING DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A thermosensitive printing device, comprising:a print roller;
a printhead module located over the print roller, wherein when a print medium is transferred through a region between the printhead module and the print roller, the print medium is printed by the printhead module;
a printhead pressure adjusting mechanism located over the printhead module and contacted with the printhead module, wherein the printhead pressure adjusting mechanism comprises an adjusting knob and an identification pattern, wherein when the adjusting knob is rotated, a pressure of the printhead pressure adjusting mechanism applied to the printhead module is adjusted and the pressure of the printhead pressure adjusting mechanism applied to the printhead module is recognized according to the identification pattern, wherein the identification pattern is formed on a top surface of the adjusting knob and rotated with adjusting knob, wherein the pressure of the printhead adjusting mechanism applied to the printhead module is recognized according to a rotation amount of the identification pattern;
a casing comprising a casing groove, wherein the printhead pressure adjusting mechanism is supported by the casing, at least a portion of the printhead pressure adjusting mechanism is penetrated through the casing groove and movable within the casing groove according to a width of the print medium; and
a top cover, wherein the top cover is located over the casing, and comprises a cover groove and an indication mark, wherein at least a portion of the printhead pressure adjusting mechanism is penetrated upwardly through the cover groove and movable within the cover groove, and the rotation amount of the identification pattern is recognized according to a relationship between the indication mark and the identification pattern.

US Pat. No. 10,242,818

KEY STRUCTURE EMPLOYING A DOME AND SCISSOR-TYPE SUPPORT

Primax Electronics Ltd., ...

1. A key structure, comprising:a switch circuit board;
a triggering assembly disposed over the switch circuit board, wherein the switch circuit board is triggered by the triggering assembly in response to an external force;
a keycap disposed over the triggering assembly, wherein when the external force is applied to the keycap, the keycap is moved; and
an elastic element arranged between the keycap and the triggering assembly and contacted with the keycap and the triggering assembly, wherein as the keycap is moved, the triggering assembly is pushed by the elastic element, so that the switch circuit board is triggered, wherein the elastic element comprises a concave part, and the concave part is located at a top end of the elastic element and contacted with the keycap, wherein when the elastic element is pushed by the keycap, the concave part is subjected to deformation, so that a movable distance of the keycap toward the switch circuit board is increased;
wherein the elastic element further comprises:
a supporting part located at a bottom side of the elastic element, wherein the supporting part is contacted with the triggering assembly, so that the elastic element is fixed on the triggering assembly; and
a pushing part disposed on an inner surface of the elastic element, wherein when the elastic element is pushed by the keycap, the triggering assembly is pushed by the pushing part, wherein the pushing part is continuously contacted with the triggering assembly.

US Pat. No. 10,242,819

MECHANICAL KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a supporting plate;
a triggering switch located over the supporting plate, wherein the triggering switch is triggered in response to an external force;
a keycap located over the triggering switch, wherein when the external force is received by the keycap, the triggering switch is pushed by the keycap; and
a soft element disposed on an inner surface of the keycap, wherein when the soft element is contacted with the triggering switch, the soft element is subjected to deformation, wherein
when the soft element is contacted with the triggering switch, a portion of the triggering switch is inserted into the deformed soft element to limit a sliding action of the triggering switch,
the triggering switch comprises a protrusion part,
the protrusion part is disposed on a top end of the triggering switch, and
the protrusion part is inserted into the deformed soft element to limit the sliding action of the triggering switch.

US Pat. No. 10,242,820

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:at least one key exposed outside the luminous keyboard;
a membrane switch circuit member located under the at least one key, and comprising an upper wiring plate, a lower wiring plate and a separation plate, wherein when the membrane switch circuit member is triggered by the at least one key, a corresponding key signal is generated, wherein the upper wiring plate is contacted with the at least one key, the lower wiring plate is located under the upper wiring plate, a separation layer is arranged between the upper wiring plate and the lower wiring plate, and the upper wiring plate and the lower wiring plate are separated from each other by the separation layer;
a supporting plate located under the membrane switch circuit member and connected with the at least one key; and
a backlight module located under the supporting plate, and generating a light beam and projecting the light beam to the at least one key, wherein a periphery region of at least one of the upper wiring plate, the lower wiring plate and the separation plate is extended over the supporting plate and bent to cover a periphery region of the supporting plate and a periphery region of the backlight module, so that the light beam is not leaked out through the periphery region of the backlight module,
wherein the at least one key comprises:
a keycap exposed outside the luminous keyboard, wherein the keycap comprises at least one light-outputting zone, and the light beam is transmitted through the at least one light-outputting zone;
a connecting element arranged between the supporting plate and the keycap, wherein the supporting plate is connected with the keycap through the connecting element, so that the keycap is movable upwardly or downwardly relative to the supporting plate; and
an elastic element arranged between the keycap and the upper wiring plate, wherein while the keycap is depressed to push the elastic element, the upper wiring plate is pressed by the elastic element, and
wherein the backlight module comprises:
a light guide plate located under the supporting plate to guide the light beam to the at least one light-outputting zone, wherein the light guide plate comprises a light guide plate opening;
a light-emitting element emitting the light beam;
a reflecting plate located under the light guide plate, wherein when a portion of the light beam is exited from the light guide plate, the light beam is reflected back into the light guide plate by the reflecting plate, wherein the reflecting plate comprises a reflecting plate opening;
a circuit board located under the reflecting plate and electrically connected with the light-emitting element, wherein the light-emitting element is supported on the circuit board, and the light-emitting element is inserted into the reflecting plate opening and the light guide plate opening, so that the light beam is introduced into the light guide plate; and
a light-sheltering plate, which is arranged between the light guide plate and the supporting plate to shelter the light beam, wherein the light-sheltering plate comprises at least one light-sheltering plate opening corresponding to the at least one light-outputting zone, and the light beam is transmitted through the at least one light-sheltering plate opening of the light-sheltering plate.

US Pat. No. 10,234,481

DETECTION DATA STORAGE DEVICE FOR DETECTION PROBE

PRIMAX ELECTRONICS LTD., ...

1. A detection data storage device, comprising:a detection probe generating a detection signal;
an inspection instrument electrically connected with the detection probe, wherein after the detection signal from the detection probe is received by the inspection instrument, a detection data is generated;
a processor electrically connected with the inspection instrument, and comprising a software component, wherein the software component receives the detection data from the inspection instrument, and the software component comprises a comparing unit and a storage unit, wherein the comparing unit contains a standard value, and the comparing unit generates a prompt signal when the detection data from the inspection instrument matches the standard value, wherein the detection data from the inspection instrument is permitted to be stored in the storage unit; and
a storage controller detachably installed on an outer shell of the detection probe and electrically connected with the processor, and comprising a key and a prompt lamp, wherein when the key is pressed by a user, a pressing signal is generated and transmitted to the software component of the processor, and the detection data from the inspection instrument is stored in the storage unit of the software component in response to the pressing signal, wherein in response to the prompt signal from the comparing unit, the prompt lamp emits a light beam to prompt the user to press the key of the storage controller, so that the detection data is stored in the storage unit of the software component.

US Pat. No. 10,236,880

LIGHT EMITTING SLIM KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a pedestal comprising a first pedestal opening;
an upper cover having an upper cover opening, wherein the pedestal is covered by the upper cover;
a first light-emitting element located under the pedestal, and emitting a first light beam, wherein the first light beam passes through the first pedestal opening;
a triggering element arranged between the pedestal and the upper cover, wherein when the triggering element is depressed, the triggering element is moved relative to the pedestal, wherein the triggering element comprises a reflecting part, and the first light beam is reflected by the reflecting part, wherein the triggering element further comprises:
a main body movable relative to the pedestal, wherein the reflecting part is extended externally from the main body;
a first coupling part located at the first end of the main body, penetrated through the upper cover opening, and connected with a keycap;
a second coupling part located a second end of the main body; and
a push part extended externally from the main body and located beside the second coupling part, wherein as the triggering element is moved relative to the pedestal, the spring strip is pushed by the push part;
an array-type sensing element located under the pedestal, and aligned with the first pedestal opening, wherein after the first light beam reflected by the reflecting part is received by the array-type sensing element, the array-type sensing element generates plural images, wherein the array-type sensing element comprises plural micro sensors that are arranged in an array;
a control unit electrically connected with the array-type sensing element, wherein the control unit generates a corresponding pressure sensing signal according to the plural images;
a circuit board, wherein the circuit board is located under the pedestal, and the first light-emitting element, the array-type sensing element and the control unit are supported on the circuit board; and
a second light-emitting element, wherein the second light-emitting element is disposed on the circuit board and emits a second light beam, wherein the second light beam is transmitted through the triggering element to illuminate the keycap, wherein the main body, the first coupling part, the second coupling part and a part of the keycap are made of a light-transmissible material or a light-guiding material.

US Pat. No. 10,236,141

KEY STRUCTURE

PRIMAX ELECTRONICS LTD., ...

1. A key structure, comprising:a membrane switch circuit member, wherein when the membrane switch circuit member is triggered, a key signal is generated;
a rubbery elastomer disposed on the membrane switch circuit member, wherein when the rubbery elastomer is depressed, the membrane switch circuit member is triggered by the rubbery elastomer;
a housing located over the rubbery elastomer, and comprising an opening and a receiving part, wherein the opening runs through the housing, and the receiving part is located beside an inner wall of the housing; a triggering element inserted into the opening and movable relative to the housing, wherein when the triggering element is pushed, the triggering element presses the rubbery elastomer the triggering element comprising:
a main body;
a connecting part protruded from a first end of the main body, and connected with a keycap; and
a positioning part disposed on a sidewall of the main body, wherein the positioning part is penetrated through a metallic elastic element, so that the metallic elastic element is fixed in the receiving part; and plural recesses located at a second end of the main body, wherein a portion of the metallic elastic element is accommodated within the plural recesses;
the metallic elastic element accommodated within the receiving part and contacted with the triggering element, wherein while the metallic elastic element is pushed by the triggering element, the metallic elastic element is swung to collide with the triggering element or the housing, so that a click sound is generated; and
the keycap coupled with the triggering element, wherein when the keycap is depressed, the triggering element is pushed by the keycap.

US Pat. No. 10,236,142

LUMINOUS KEYBOARD

PRIMAX ELECTRONICS LTD., ...

1. A luminous keyboard, comprising:a key structure exposed outside the luminous keyboard;
a supporting plate located under the key structure and connected with the key structure, wherein the supporting plate comprises a supporting plate opening;
a switch circuit board located over the supporting plate, wherein when the switch circuit board is triggered by the key structure, a key signal is generated;
a light guide plate located under the supporting plate, wherein the light guide plate comprises a light guide plate opening;
a top-view light-emitting element located under the key structure and inserted into the light guide plate opening, wherein the top-view light-emitting element emits a light beam; and
a reflecting element aligned with the top-view light-emitting element, and arranged between the key structure and the top-view light-emitting element, wherein after the light beam is transmitted through the supporting plate opening, the light beam is reflected to the light guide plate by the reflecting element and the light beam is guided to a periphery region of the key structure by the light guide plate,
wherein the key structure comprises:
a keycap located over the supporting plate and exposed outside the luminous keyboard, wherein the periphery region of the key structure is located at the keycap;
a connecting element arranged between the keycap and the supporting plate, wherein the keycap is connected with the supporting plate through the connecting element, so that the keycap is movable upwardly or downwardly relative to the supporting plate; and
a triggering element arranged between the keycap and the switch circuit board, wherein while the keycap is depressed to push the triggering element, the switch circuit board is triggered by the triggering element,
wherein the switch circuit board comprises:
an upper wiring board contacted with the triggering element, wherein the upper wiring board comprises an upper conductive part;
a lower wiring board located under the upper wiring board, wherein the lower wiring board comprises a lower conductive part; and
a separation layer arranged between the upper wiring board and the lower wiring board, wherein the upper conductive part and the lower conductive part are separated from each other by the separation layer, and the separation layer comprises a separation layer opening,
wherein when the upper wiring board is triggered by the triggering element, the upper conductive part is penetrated through the separation layer opening and contacted with the lower conductive part, so that the switch circuit board generates the key signal,
wherein the reflecting element is printed or coated on a top surface of the upper wiring board, and an area of the reflecting element is larger than an area of a light-outputting surface of the top-view light-emitting element.

US Pat. No. 10,192,698

INPUT DEVICE WITH ADJUSTABLE FORCE LEVEL

PRIMAX ELECTRONICS LTD., ...

1. An input device with an adjustable force level, comprising:a circuit board comprising a switch; and
a key structure located over the circuit board, and comprising:
a key body comprising a keycap and a triggering element, wherein the triggering element is connected with the keycap;
a casing located under the keycap and assembled with the circuit board, wherein the triggering element is inserted into an inner portion of the casing; and
a pressure-adjustable elastic receptacle partially or completely accommodated within the casing and contacted with the key body, wherein the pressure-adjustable elastic receptacle comprises a pressure-adjusting opening, and a pressure within the pressure-adjustable elastic receptacle is set through the pressure-adjusting opening, wherein when the key body is pressed down, a resisting force to resist the key body is provided by the pressure-adjustable elastic receptacle according to the pressure within the pressure-adjustable elastic receptacle,
wherein when the key structure is pressed down to a triggered position by a user, the switch of the circuit board is triggered by the triggering element.

US Pat. No. 10,175,280

ELECTRONIC DEVICE TEST SYSTEM AND METHOD THEREOF

PRIMAX ELECTRONICS LTD., ...

1. An electronic device test system, configured to test functions of an electronic device, wherein the electronic device test system comprises:a test computer, configured to execute an electronic device test program;
a scanning device, configured to scan a barcode number of the electronic device; and
an optical sensor module, configured to detect a connection status of the electronic device and the test computer, wherein
when the optical sensor module confirms the connection status, the electronic device test program starts a test function to test the electronic device, records a test result of the electronic device according to the barcode number, and subsequently generates a retest rate according to the test result.

US Pat. No. 10,162,434

MOUSE WITH INERTIA ROLLER MODULE

PRIMAX ELECTRONICS LTD., ...

1. A mouse with an inertial roller module, the mouse comprising:a main body; and
the inertial roller module installed in the main body, and comprising:
a supporting bracket fixed in the main body;
a roller pivotally coupled to the supporting bracket;
a gear assembly located beside a side of the supporting bracket that is away from the roller, wherein the gear assembly comprises a first gear and a second gear, the first gear is connected with the roller, the first gear is engaged with the second gear, and the number of teeth in the first gear is larger than the number of teeth in the second gear; and
an encoding element located beside a side of the roller that is away from the supporting bracket, wherein the encoding element is connected with the roller;
a supporting shaft, wherein a first side of the supporting shaft is connected with the roller, and a second side of the supporting shaft is penetrated through the supporting bracket and connected with the first gear, so that the roller is connected with the first gear through the supporting shaft, wherein the gear assembly further comprises a third gear and a fourth gear, wherein a side of the third gear is connected with an end of the supporting shaft that is away from the roller, the fourth gear is connected with the first gear and arranged between the supporting bracket and the first gear, and the roller is connected with the first gear through engagement between the third gear and the fourth gear.

US Pat. No. 10,146,982

METHOD FOR ASSEMBLING FINGERPRINT IDENTIFICATION MODULE

PRIMAX ELECTRONICS LTD., ...

1. A method for assembling a fingerprint identification module, the method comprising steps of:(A) combining a protective cover and a fingerprint sensing element together;
(B) placing the fingerprint sensing element on a first region of a circuit board, and placing a triggering element on a second region of the circuit board, wherein the fingerprint sensing element is located beside the triggering element;
(C) obtaining an adhesive thickness according to thicknesses of the protective cover, the fingerprint sensing element, the triggering element and the circuit board; and
(D) allowing an adhesive film corresponding to the adhesive thickness to be placed on the circuit board, and allowing the first region of the circuit board to be folded and stacked on the second region of the circuit board, so that the fingerprint identification module is assembled, wherein the adhesive film is arranged between the second region of the circuit board and the folded first region of the circuit board,
wherein after the step (A) and before the step (B), the method further comprises:
turning the protective cover upside down, and placing the protective cover on a thin film;
sheathing a metallic ring around the protective cover, wherein the thin film and the protective cover are disposed within an opening of the metallic ring;
fixing the metallic ring on the protective cover; and
removing the thin film from the opening of the metallic ring, so that there is a height difference between the metallic ring and the protective cover.

US Pat. No. 10,146,364

TOUCH PAD INPUT DEVICE

PRIMAX ELECTRONICS LTD., ...

1. An input device, comprising:a plate body;
a first sensing element disposed on the plate body and located at a first end of a diagonal of the plate body, wherein the first sensing element detects a first image corresponding to a touching object on or over the plate body;
a second sensing element disposed on the plate body and located at a second end of the diagonal of the plate body, wherein the second sensing element detects a second image corresponding to the touching object on/over the plate body; and
a control unit electrically connected with the first sensing element and the second sensing element, wherein the control unit acquires a position characteristic value according to the first image and acquires an auxiliary position characteristic value according to the second image, and the control units recognizes a position of the touching object according to the position characteristic value and the auxiliary position characteristic value and generates an output signal according to the position of the touching object, wherein the control unit defines plural first coordinates of the plate body, the plural first coordinates of the plate body are collaboratively formed as a first coordinate system with respect to the first sensing element, and the plural first coordinates of the plate body correspond to plural first predetermined position characteristic values, respectively, wherein the control unit defines plural second coordinates of the plate body, the plural second coordinates of the plate body are collaboratively formed as a second coordinate system with respect to the second sensing element, and the plural second coordinates of the plate body correspond to plural second predetermined position characteristic values, respectively, wherein the first image contains an object information corresponding to the touching object, a first size corresponding to the touching object and the position characteristic value corresponding to the touching object, and the second image contains the object information corresponding to the touching object, a second size corresponding to the touching object and the auxiliary position characteristic value corresponding to the touching object, wherein the control unit analyzes the second image to acquire the position characteristic value, and the control unit analyzes the second image to acquire the auxiliary position characteristic value, wherein each of the plural first predetermined position characteristic values is equal to the first size/((an X-axis scale of one of the plural first coordinates of the plate body+1)×(a Y-axis scale of one of the plural first coordinates of the plate body+1)), and each of the plural second predetermined position characteristic values is equal to the second size/((an X-axis scale of one of the plural second coordinates+1)×(a Y-axis scale of one of the plural second coordinates+1)).

US Pat. No. 9,941,076

ILLUMINATED KEYBOARD DEVICE

Primax Electronics Ltd, ...

1. An illuminated keyboard device, comprising:plural keys comprising plural keycaps and plural elastic elements, wherein the elastic elements are located under the keycaps, and each of the plural keycaps comprises at least one light outputting zone;
plural light-emitting elements located under the plural elastic elements, and emitting plural light beams to the at least one light outputting zone; and
a membrane switch circuit module located under the plural keys, wherein the plural elastic elements are disposed on the membrane switch circuit module, and the membrane switch circuit module comprises:
an upper wiring plate comprising plural upper contacts, wherein each of the plural upper contacts is located under a corresponding elastic element;
a lower wiring plate located under the upper wiring plate, and comprising plural lower contacts corresponding to the plural upper contacts; and
a spacer layer arranged between the upper wiring plate and the lower wiring plate, wherein the plural upper contacts and the plural lower contacts are separated from each other by the spacer layer, wherein the spacer layer comprises plural perforations corresponding to the plural upper contacts,
wherein each elastic element has a hollow protrusion, and the protrusion is disposed within the elastic element and located over a corresponding upper contact, wherein when one of the plural keycaps is depressed, the membrane switch circuit module is pressed by the protrusion, so that the corresponding upper contact and a corresponding lower contact are contacted with each other to generate a corresponding key signal, and
wherein the upper contacts, the protrusions, the lower contacts and the perforations are aligned ring-shaped structures, each having a center region, and wherein the light-emitting elements are is located over each center region of the upper contacts to directly provide light to the keycaps through the hollow protrusions.

US Pat. No. 10,310,629

JOYSTICK-TYPE MOUSE

PRIMAX ELECTRONICS LTD., ...

1. A joystick-type mouse, comprising:a main body comprising a controlling module; and
a mode detecting assembly comprising a coupling member, a posture sensor and a magnetic field sensor, wherein a pivotal part is located at a first side of the coupling member and pivotally coupled with the main body, a magnetic part is located at a second side of the coupling member, and the posture sensor and the magnetic field sensor are disposed within the main body and electrically connected with the controlling module,
wherein when the posture sensor detects that the main body is in an upright status and the magnetic field sensor detects that the magnetic part is rotated in a direction away from the main body, the main body enters a joystick mode under control of the controlling module.

US Pat. No. 10,312,036

KEYBOARD DEVICE

PRIMAX ELECTRONICS LTD., ...

1. A keyboard device, comprising:plural key structures exposed outside the keyboard device;
a switch circuit board located under the plural key structures, wherein when the switch circuit board is triggered by one of the plural key structures, a corresponding key signal is generated, wherein the switch circuit board comprises a hollow region;
an elastic cover disposed on the switch circuit board, wherein the hollow region is covered by the elastic cover, so that a foreign liquid is prevented from entering the switch circuit board; and
a seal element disposed on sidewalls of the switch circuit board, so that a sealed region is formed between the switch circuit board and the elastic cover to prevent the foreign liquid from entering the switch circuit board, wherein when a volume of an inner gas within the sealed region increases, the elastic cover is subjected to expansion in response to elasticity of the elastic cover and the volume of the inner gas, wherein when the volume of the inner gas within the sealed region decreases, the elastic cover is subjected to contraction in response to elasticity of the elastic cover and the volume of the inner gas; wherein the switch circuit board comprises:
an upper writing plate comprising a first opening and a first contact;
a lower wiring plate located under the upper wiring plate, and comprising a second contact corresponding to the first contact; and
a separation layer arranged between the upper wiring plate and the lower wiring plate, and comprising a second opening and a third opening, wherein the hollow region is defined by the first opening and the second opening collaboratively, and a key intersection is defined by the first contact, the second contact and the third opening collaboratively.