US Pat. No. 9,274,567

PORTABLE ELECTRONIC DEVICE AND CONTROL METHOD THEREOF

QISDA (SUZHOU) CO., LTD.,...

1. A portable electronic device, comprising:
a display module for displaying an image;
a speed sensor for determining a moving speed of the portable electronic device;
a control module, coupled to the speed sensor and the display module, for determining a rotation sensitivity for the control
module to rotate the displayed image according to the moving speed of the portable electronic device;

a distance sensor, coupled to the control module, for determining a distance change between an object and the portable electronic
device; and

an angle sensor, coupled to the control module, for determining an angle of the portable electronic device with respect to
a reference direction,

wherein the control module rotates the displayed image with a first rotation sensitivity when the moving speed of the portable
electronic device is higher than a first speed and lower than a second speed,

wherein when the moving speed of the portable electronic device is lower than the first speed or higher than the second speed,
the control module determines the rotation sensitivity according to the distance change and the angle.

US Pat. No. 9,901,015

DISPLAY DEVICE

Qisda (Suzhou) Co., Ltd.,...

1. A display device comprising:
a casing comprising a front bezel with an opening;
a display panel disposed on a first side of the opening;
a transparent plate disposed on a second side of the opening such that a space is formed between the display panel and the
transparent plate, and the first side being opposite to the second side;

a fan disposed inside the casing;
a humidity sensor disposed in the space for sensing a humidity of the space;
a first temperature sensor disposed in the space for sensing a first temperature of the space;
a second temperature sensor disposed directly on the transparent plate for sensing a second temperature of the transparent
plate; and

a processing unit disposed in the casing and electrically connected to the fan, the humidity sensor, the first temperature
sensor and the second temperature sensor,

wherein when the processing unit determines that the humidity, the first temperature and the second temperature meet a predetermined
relationship according to a look-up table, the processing unit increases a rotational speed of the fan.

US Pat. No. 9,373,028

HANDWRITING INPUT SYSTEM AND HANDWRITING INPUT METHOD

Qisda (Suzhou) Co., Ltd, ...

1. A handwriting input system comprising:
a handwriting pen comprising a pen body, a first sensing unit and a first communication unit, the first sensing unit and the
first communication unit being disposed in the pen body, the first sensing unit sensing an action of the pen body to generate
a sensing data;

a handwriting plate comprising a touch unit, a display unit and a second communication unit, the touch unit sensing a contact
trajectory and a contact time while the handwriting pen contacts the handwriting plate, the first communication unit communicating
with the second communication unit; and

a processing unit selectively disposed in one of the handwriting pen and the handwriting plate, the processing unit calculating
a tilt angle of the pen body according to the sensing data, determining a contact shape according to the tilt angle, determining
an ink output amount according to the contact time, and determining a handwriting image according to the contact trajectory,
the contact shape and the ink output amount, and the display unit displaying the handwriting image.

US Pat. No. 9,651,427

PYROELECTRIC SENSING DEVICE

Qisda (Suzhou) Co., LTD.,...

1. A pyroelectric sensing device comprising:
two pyroelectric sensors;
a driving mechanism for driving the two pyroelectric sensors to shift; and
a movable base, wherein the two pyroelectric sensors are disposed on the movable base, the driving mechanism is connected
to the movable base, and the driving mechanism drives the movable base to shift so as to shift the two pyroelectric sensors,
and wherein the driving mechanism comprises a core, a magnetic member, a cone member and a coil, the magnetic member is fixed
on the core, the core has a protrusion part, a first end of the cone member is movably disposed on the protrusion part, the
coil is fixed on the first end, a second end of the cone member is connected to the movable base, the first end is opposite
to the second end, when an electric power is supplied to the coil so that a magnetic force is generated between the magnetic
member and the coil, the coil enables the cone member and the movable base to move toward a first direction, when the electric
power supplied to the coil is cut off, the cone member enables the movable base to move toward a second direction, and the
first direction is opposite to the second direction.

US Pat. No. 9,742,298

TRANSFORMER AND CONTROL METHOD THEREOF

Qisda (Suzhou) Co., LTD.,...

1. A transformer, comprising:
a first winding disposed at a primary side, having a first number of turns, comprising a first terminal coupled to an input
voltage terminal, and a second terminal coupled to a first ground;

a second winding disposed at a secondary side, having a second number of turns, comprising a first terminal, and a second
terminal coupled to a second ground;

a first current direction control unit comprising a first terminal coupled to the first terminal of the second winding, and
a second terminal coupled to an output voltage terminal;

a third winding disposed at the secondary side, having a third number of turns, comprising a first terminal and a second terminal;
a second current direction control unit comprising a first terminal coupled to the first terminal of the third winding, and
a second terminal coupled to the output voltage terminal;

a first switch comprising a first terminal coupled to the second terminal of the third winding, a second terminal coupled
to the first terminal of the second winding, and a control terminal configured to receive a first switch control signal;

a loading capacitor comprising a first terminal coupled to the output voltage terminal, and a second terminal coupled to the
second ground;

a fourth winding disposed at the secondary side, having a fourth number of turns and comprising a first terminal, and a second
terminal;

a third current direction control unit comprising a first terminal coupled to the first terminal of the fourth winding, and
a second terminal coupled to the output voltage terminal; and

a third switch comprising a first terminal coupled to the second terminal of the fourth winding, a second terminal coupled
to the first terminal of the first current direction control unit, and a control terminal configured to receive a third switch
control signal.

US Pat. No. 9,897,248

DISPLAY DEVICE

Qisda (Suzhou) Co., Ltd.,...

1. A display device, comprising:
a display;
a base, connected to the display via a flexible circuitry; and
a support frame assembly, disposed between the display and the base, the support frame assembly comprising:
an inner rail, connected to the base, the inner rail comprises a first sidewall, a second sidewall opposite to the first sidewall,
and a first wall disposed between the first sidewall and the second sidewall;

an outer rail, connected to the display, wherein the outer rail is movably connected to the inner rail so that the outer rail
is disposed at a first position or a second position relative to the base, and an accommodation space is formed between the
outer rail and the inner rail for accommodating the flexible circuitry, the outer rail comprises a third sidewall, a fourth
sidewall opposite to the third sidewall, and a second wall disposed between the third sidewall and the fourth sidewall, the
first sidewall is opposite to the third sidewall, the second sidewall is opposite to the fourth sidewall, the first wall is
opposite to the second wall, and the accommodation space is formed by the first sidewall, the second sidewall, the first wall
and the second wall; and

a first stop member, disposed between the inner rail and the outer rail and extending from the inner rail toward a direction
away from the accommodation space for restricting the outer rail to move along the inner rail between the first position and
the second position, wherein the first stop member comprises a first protrusion extending from the first sidewall toward the
third sidewall and a second protrusion extending from the second sidewall toward the fourth sidewall.

US Pat. No. 9,687,076

DISPLAY APPARATUS

Qisda (Suzhou) Co., LTD.,...

1. A display apparatus, comprising:
a display unit; and
a support device, connected to the display unit to support the display unit on a flat surface with a supporting angle, the
support device comprising:

a support bracket, having a pivot hole;
a pivot unit, pivotally connected to the pivot hole of the support bracket and connected to the display unit; and
a constant force spring, having a spring body mounted on the pivot unit and fixed to the support bracket, wherein when the
supporting angle changes in a predetermined range, an end portion of the spring body is movably connected to the support bracket.

US Pat. No. 10,038,630

NETWORK SYSTEM AND SOFTWARE UPDATING METHOD

Qisda (Suzhou) Co., Ltd.,...

1. A network system comprising:a terminal device;
a first router coupled to the terminal device;
a second router coupled to the terminal device;
a first border router coupled to the first router;
a second border router coupled to the second router; and
a server communicating with the first border router and the second border router through an Internet network,
wherein the server transmits a first updating software to the first border router and the second border router, respectively, through the Internet network, the first border router transmits the first updating software to the first router and the second border router transmits the first updating software to the second router, the first router transmits the first updating software to the terminal device and the second router transmits the first updating software to the terminal device, the terminal device determines whether a first version information of the first updating software received from the first router and a second version information received from the second router are identical, and when the first version information of the first updating software received from the first router and the second version information received from the second router are identical, the terminal device executes the updating software, or when the first version information of the updating software received from the first router and the second version information received from the second router are not identical, the terminal device does not execute the updating software.

US Pat. No. 9,826,592

LAMP HAVING ILLUMINATION MODULES WITH DIFFERENT PERCENTAGE OF LUMINANCE ADJUSTMENT

Qisda (Suzhou) Co., Ltd, ...

1. A lamp comprising:
a first illumination module comprising a first light-emitting surface;
a second illumination module comprising a second light-emitting surface connected to the first light-emitting surface; and
a control circuit coupled to the first illumination module and the second illumination module;
wherein a percentage of luminance increasing of the first illumination module is less than a percentage of luminance increasing
of the second illumination module when the control circuit increases the luminance of the first illumination module and the
luminance of the second illumination module; and

wherein the lamp is used on a desktop comprising an information-device-use area corresponding to the first light-emitting
surface and a reading-writing area corresponding to the second light-emitting surface.

US Pat. No. 9,772,148

DISPLAY DEVICE

Qisda (Suzhou) Co., Ltd.,...

1. A display device, comprising:
a display module having a back surface, wherein the back surface has a first heat dissipating block;
a support housing disposed opposite the back surface and sandwiches a mezzanine space with the back surface;
a first heat dissipating module disposed in the mezzanine space, the first heat dissipating module has:
a first heat dissipating body having a first heat exchange surface and a first pressure receiving surface facing away from
each other, wherein the first heat exchange surface is heat exchange connected to the first heat dissipating block;

a first elastic unit disposed compressed between the first pressure receiving surface and the support housing; and
a second heat dissipating module disposed in the mezzanine space, the second heat dissipating module has:
a second heat dissipating body having a second heat exchange surface and a second pressure receiving surface facing away from
each other, wherein the back surface includes a second heat dissipating block independent of the first heat dissipating block,
and the second heat dissipating block is heat exchange connected with the second heat dissipating block;

a second elastic unit disposed compressed between the second pressure receiving surface and the support housing;
wherein the first elastic unit provides the first pressure receiving surface a first pressing force with the support housing
as a source of reaction force, the second elastic unit provides the second pressure receiving surface with a second pressing
force with the support housing as a source of reaction force, and the second pressing force is greater than the first pressing
force.

US Pat. No. 9,696,959

DISPLAY DEVICE AND POSITIONING METHOD

Qisda (Suzhou) Co., LTD.,...

1. A display device receiving an image, the display device comprising:
a micro control unit; and
a plurality of transceivers, disposed in a plurality of corners of the display device respectively and connected with the
micro control unit, when the display device corporately displaying the image with a plurality of the display devices, the
transceivers in the display device detecting a detected information from transceivers in the adjacent display devices, a first
display device in the plurality of display devices has a starting coordinate position, the transceivers of the first display
device selectively transmit the starting coordinate position to a second display device in the plurality of display devices
in a X-axis direction and a Y-axis direction, the second display device is disposed adjacent to the first display device,
the second display device determines a second coordinate position of the second display device in accordance with the starting
coordinate position and a direction where the second display device receives the starting coordinate position from the first
display device, the micro control unit determining an absolute coordinate information of the display device according to the
detected information, a third display device of the plurality of display devices has a third coordinate position, the transceivers
of the third display device transmit the third coordinate position to a fourth display device adjacent to the third display
device selectively in the X-axis direction and the Y-axis direction, the fourth display device determines a fourth coordinate
position of the fourth display device according to the third coordinate position and a direction where the fourth display
device receives the third coordinate position from the third display device, the transceivers of the fourth display device
transmits the fourth coordinate position to a fifth display device adjacent to the fourth display device selectively in the
X-axis direction and the Y-axis direction, wherein the fourth coordinate position is not transmitted in the direction where
the fourth display device receives the third coordinate position, a fifth display device of the plurality of display devices
has a fifth coordinate position, the fifth display device transmits the fifth coordinate position to a sixth display device
adjacent to the fifth display device selectively in the X-axis direction and the Y-axis direction, the sixth display device
of the plurality of display devices has a sixth coordinate position, a first transceiver and a second transceiver of the sixth
display device transmit the sixth coordinate position of the sixth display device to a seventh display device in the X-axis
direction, wherein the seventh display device is adjacent to the sixth display device, the second transceiver and a third
transceiver of the sixth display device transmit the sixth coordinate position of the sixth display device to an eighth display
device in the Y-axis direction, wherein the eighth display device is adjacent to the sixth display device, the second transceiver
of the sixth display device transmits the sixth coordinate position of the sixth display device to a ninth display device
diagonally adjacent to the sixth display device, a seventh coordinate position of the seventh display device is determined
according to the sixth coordinate position and a direction where the seventh display device receives the sixth coordinate
position from the sixth display device, an eighth coordinate position of the eighth display device is determined according
to the sixth coordinate position and a direction where the eighth display device receives the sixth coordinate position from
the sixth display device, a ninth coordinate position of the ninth display device is determined according to the sixth coordinate
position and a direction where the ninth display device receives the sixth coordinate position from the sixth display device,
wherein the display device displays a portion of the image according to the absolute coordinate information of the display
device.

US Pat. No. 10,003,122

ANTENNA DEVICE AND COMMUNICATION DEVICE USING THE SAME

Qisda (Suzhou) Co., Ltd.,...

1. An antenna device, comprising:a radiation part, comprising:
a first sidewall;
a second sidewall, connected to a first end of the first sidewall;
a third sidewall, connected to a second end of the first sidewall, wherein the third sidewall is opposite to the second sidewall, and a containing space is formed by the first sidewall, the second sidewall and the third sidewall;
a first extension part, extending toward the third sidewall from the second sidewall; and
a first protrusion part, extending toward the first sidewall from the first extension part; and
a circuit board, disposed parallel to the first sidewall, the circuit board comprising:
a ground layer;
a feed point, electrically connected to the radiation part;
a clearance area, disposed in the containing space;
a first metal sheet, disposed in the clearance area and extending from the ground layer; and
a second metal sheet, disposed in the clearance area, wherein the second metal sheet is connected to the first metal sheet, parallel to the first extension part and connected to the first protrusion part,
wherein the second metal sheet extends toward the third sidewall from the first metal sheet and is connected to the first protrusion part at an end thereof,
wherein a first current path is formed by the feed point, the first sidewall, the second sidewall, the first extension part, the first protrusion part, the second metal sheet and the first metal sheet in sequence, and a length ratio of the first current path to the second metal sheet is ranged from 4.5 to 5.

US Pat. No. 9,772,064

DISPLAY WITH A SUPPORTING MECHANISM

Qisda (Suzhou) Co., Ltd.,...

1. A display with a supporting mechanism, comprising:
a portable electronic display module; and
a supporting device connecting the display module, the supporting device comprising:
a base for fixing the display module, the base comprising a first constraint structure; and
a rotatable support comprising a rotation member, a handle, and a connection member, the rotation member being pivotally connected
to the base, the handle and the rotation member being pivotally connected through the connection member so that the handle
can rotate toward and away from the base, the connection member comprising a second constraint structure, the second constraint
structure being either engaged with or disengaged from the first constraint structure, wherein when the rotation member is
located at a first position relative to the base, the first constraint structure and the second constraint structure are engaged
with each other and prevent the handle from rotating relative to the rotation member through the connection member.

US Pat. No. 9,400,534

ELECTRONIC DEVICE WITH ADJUSTABLE CURRENT SUPPLY CONNECTORS

Qisda Corporation, Taoyu...

1. An electronic device connecting to an external electronic device, the external electronic device comprising a connector,
the electronic device comprising:
a first connector;
a second connector;
a power supply unit for providing a first current to the first connector and a second current to the second connector;
a first switch unit coupling the first connector and the second connector; and
a control unit for controlling the first switch unit, wherein when the first connector connects the connector of the external
electronic device, the first switch unit selectively switches the second current providing to the first connector;
the electronic device further comprising:
a third connector, the power supply unit providing a third current to the third connector; and
a second switch unit coupling the first connector and the third connector, wherein the second switch unit is configured to
selectively switch the third current providing to the first connector or the third connector.

US Pat. No. 9,366,859

TOUCH PROJECTION SYSTEM

QISDA OPTRONICS (SUZHOU) ...

1. A touch projection system, comprising:
a screen;
a light source device for emitting projection light;
an image-capturing device for receiving image light from the screen;
a micromirror device for reflecting the projection light and the image light; and
a total internal reflection prism, comprising:
a main body having a first side surface, a second side surface, a third side surface, and a fourth side surface, the second
side surface being opposite to the first side surface, the third side surface and the fourth side surface being adjacent to
the second side surface, the second side surface facing the micromirror device, the projection light from the light source
device entering the main body through the third side surface, exiting out the main body through the second side surface, being
reflected by the micromirror device to enter the main body through the second side surface, and exiting out the main body
through the first side surface to be projected onto the screen; and

an optical path compensation structure fixedly disposed on the fourth side surface, the image light from the screen entering
the main body through the first side surface, exiting out the main body through the second side surface, being reflected by
the micromirror device to enter the main body through the second side surface, and exiting out the main body through the optical
path compensation structure to be received by the image-capturing device, wherein optical distances for the image light to
travel from entering the main body through different portions of the second side surface to exiting out the main body through
the optical path compensation structure are substantially equivalent.

US Pat. No. 9,857,670

POWER BOARD AND BALLAST MODULE AND PROJECTOR USING THE SAME

Qisda Optronics (Suzhou) ...

1. A projector comprising:
a casing comprising a containing tank;
an opto-mechanical module disposed in the casing;
a first electrical connector disposed in the containing tank, the opto-mechanical module being electrically connected to the
first electrical connector; and

a power board and ballast module, comprising:
a housing detachably disposed in the containing tank;
a power board disposed in the housing;
a ballast disposed in the housing and electrically connected to the power board; and
a second electrical connector disposed in the housing and exposed out of the housing, the power board and the ballast being
electrically connected to the second electrical connector respectively, wherein when the housing is disposed in the containing
tank, the first electrical connector is electrically connected to the second electrical connector.

US Pat. No. 9,048,736

POWER ADAPTOR WITH POWER-SAVING MECHANISM

Qisda Corporation, Taoyu...

1. A power adaptor with a power-saving mechanism, comprising:
an inverter configured to convert an input voltage into an output voltage according to a power conversion ratio and adjust
the power conversion ratio according to a feedback voltage associated with the output voltage, the inverter comprising:

a first winding coil disposed on a primary side of the power adaptor for receiving the input voltage; and
a second winding coil disposed on a secondary side of the power adaptor for providing the output voltage;
an output end for outputting the output voltage;
a feedback circuit configured to provide a reference voltage associated with the feedback voltage by voltage-dividing the
output voltage according to a specific ratio, the feedback circuit comprising:

a first resistor and a second resistor coupled in series between an input end of the feedback circuit and a ground for determining
the specific ratio;

a photo-coupling unit coupled in parallel with the first resistor for providing the reference voltage; and
a three-terminal voltage stabilizer for driving the photo-coupling unit according to the specific ratio;
an adjusting unit comprising:
a first switch including:
a control end;
a first end coupled between the first resistor and the second resistor; and
a second end; and
a third resistor coupled between the second end of the first switch and the ground, the adjusting unit configured to adjust
the specific ratio according to a loading variation of the output end by coupling the third resistor in parallel with the
second resistor when a voltage established across an impedance unit is greater than a predetermined value; and

a detecting unit coupled between the adjusting unit and the output end and configured to determine the loading variation according
to the output voltage or a loading current flowing through the output end, the detecting unit comprising:

a second switch including:
a control end coupled to the output end;
a first end coupled to the second winding coil; and
a second end coupled to the control end of the first switch; and
the impedance unit coupled between the control end of the second switch and the first end of the second switch.

US Pat. No. 9,638,991

PROJECTION DEVICE CAPABLE OF COLLECTING LIGHT DENSELY

Qisda Optronics (Suzhou) ...

1. A projection device, comprising:
a light splitter module configured to receive and split light beams into a plurality of display color lights; and
a light source module, comprising:
a first light source configured to emit a first light beam with a first polarization direction;
a second light source configured to emit a second light beam with a second polarization direction, wherein the first light
source and the second light source are disposed along a first axis and the first polarization direction is perpendicular to
the second polarization direction;

a first reflection module comprising at least one reflection mirror, the first reflection module disposed corresponding to
the first light source along the first axis, and configured to reflect the first light beam to a second axis, wherein the
first axis is perpendicular to the second axis; and

a first polarization module comprising at least one polarizer, the first polarization module disposed corresponding to the
second light source along the first axis and corresponding to the first reflection module along the second axis, and configured
to direct the first light beam to pass through the first polarization module along the second axis and reflect the second
light beam to the second axis and further into the light splitter module.

US Pat. No. 9,072,179

DISPLAY DEVICE

Qisda Corporation, Taoyu...

1. A display device, used on a working surface, comprising:
a body;
a support rotatably disposed on a back side of the body, the support comprising a first slip stopper;
a first elastic unit pivotally connected to the body and the support; and
an extending support disposed on the back side of the body opposite to the support and inrotatably with respect to the support,
an angle is included between the extending support and the support, wherein a first angle is included between the body and
the support when the body and the support are supported on the working surface, a second angle is included between the body
and the extending support when the body and the extending support are supported on the working surface, the second angle is
greater than the first angle;

wherein the display device is supported on the working surface by a bottom of the body and the first slip stopper, the first
elastic unit generates an elastic force to pull the support toward the body when the first slip stopper moves away from the
working surface.

US Pat. No. 9,860,496

PROJECTOR

Qisda Corporation, Taoyu...

1. A projector comprising:
a light source for emitting an incident light;
a digital micro-mirror device having a first side in a first direction and a second side in a second direction perpendicular
to the first direction, wherein the first side is longer than the second side, the digital micro-mirror device receives and
reflects the incident light as an image light;

a first prism disposed between the light source and the digital micro-mirror device for receiving and transmitting the incident
light, the first prism comprising:

a first plane faced to the light source for receiving the incident light;
a second plane adjoined to the first plane; and
an intermediate portion adjoined to the first plane and comprising a reflecting portion, wherein the incident light is transmitted
to the reflecting portion and is reflected by the reflecting portion, then, the incident light passes through the second plane;
and

a second prism disposed between the first prism and the digital micro-mirror device, the second prism comprising:
a fourth plane paralleled to the second plane for receiving the incident light and reflecting the image light;
a fifth plane adjoined to the fourth plane and paralleled to the digital micro-mirror device, wherein the fifth plane comprises
an adjoining side paralleled to the first side; and

a sixth plane adjoined to the fourth plane and the fifth plane, wherein the sixth plane is faced to a lens;
wherein the incident light is transmitted to the digital micro-mirror device through the fourth plane and the fifth plane,
the incident light is reflected by the digital micro-mirror device as the image light to the sixth plane, when the digital
micro-mirror device is operated in an OFF-state, the sixth plane reflects a leakage light of the image light along a predetermined
light path away from the prisms.

US Pat. No. 9,798,224

PROJECTOR

Qisda Optronics (Suzhou) ...

1. A projector comprising:
a light source for emitting an incident light;
a digital micro-mirror device having a first side in a first direction and a second side in a second direction perpendicular
to the first direction, wherein the first side is longer than the second side, the digital micro-mirror device receives and
reflects the incident light as an image light;

a first prism disposed between the light source and the digital micro-mirror device for receiving and transmitting the incident
light, the first prism comprising:

a first plane faced to the light source for receiving the incident light;
a second plane adjoined to the first plane; and
an intermediate portion adjoined to the first plane and comprising a reflecting portion and a third plane, wherein the reflecting
portion is a plano-convex lens, and the reflecting portion comprises:

a seventh plane adjoined to the third plane; and
an eighth surface opposite to the seventh plane and comprising a mirror coating for reflecting the incident light;
wherein the incident light is transmitted to the reflecting portion and is reflected by the reflecting portion, then, the
incident light passes through the second plane;

a second prism disposed between the first prism and the digital micro-mirror device for receiving and transmitting the incident
light and the image light, the second prism comprising:

a fourth plane paralleled to the second plane for receiving the incident light;
a fifth plane adjoined to the fourth plane and paralleled to the digital micro-mirror device, wherein the fifth plane comprises
an adjoining side paralleled to the first side; and

a sixth plane adjoined to the fourth plane and the fifth plane; and
a lens faced to the sixth plane for receiving and projecting the image light;
wherein the incident light is transmitted to the digital micro-mirror device through the fourth plane and the fifth plane,
the image light passes through the fifth plane and is reflected by the fourth plane, when the digital micro-mirror device
operates in an ON-state, the image light passes through the sixth plane.

US Pat. No. 10,192,514

DISPLAY DEVICE

Qisda (Suzhou) Co., Ltd.,...

1. A display device, comprising:a display panel comprising a display screen;
a color calibration module comprising a pivot end and a calibration end opposite to the pivot end, and
a sensor disposed on the calibration end,
wherein when the color calibration module rotates about the pivot end, the calibration end moves from a first position to a second position along a route unparallel to the display screen, and a distance between the second position and the display screen is shorter than a distance between the first position and the display screen, and
during the color calibration module rotates, a distance between the sensor and the pivot end is constant.

US Pat. No. 9,638,915

PROJECTOR AND COLOR WHEEL MODULE DUST REMOVING METHOD

QISDA OPTRONICS (SUZHOU) ...

1. A projector comprising:
a color wheel module comprising:
a color wheel comprising multiple color-filtering areas configured to provide multiple colors of light;
a shaft connected to the color wheel, configured to drive the color wheel to spin, comprising a reflecting surface and a mark;
a fixing part disposed corresponding to the shaft;
a light transceiver set on the fixing part, configured to emit light and receive the light reflected by the shaft; and
a vibrator set on the fixing part, configured to vibrate when meeting a vibrating condition so as to shake off dust on the
color wheel, the shaft and/or the light transceiver; and

a processing unit coupled to the light transceiver, configured to analyze a spinning angle of the color wheel according to
the light received by the light transceiver.

US Pat. No. 9,470,965

PROJECTION SYSTEM

Qisda Corporation, Taoyu...

1. A projection system, comprising:
a projection lens, configured to project an image light;
an image modulation device, comprising a panel width and configured to form the image light;
a light-guiding rod, configured to receive and homogenize a plurality of lights, the light-guiding rod being defined with
an axial direction and comprising a first end and a second end, the first end comprising a transmission surface and a first
reflection surface formed on a first side of the transmission surface, a normal direction of the first reflection surface
and the axial direction having a first angle formed therebetween, the transmission surface substantially being perpendicular
to the axial direction, the first reflection surface comprising a first width, the transmission surface comprising a second
width, both of a ratio of the first width to the panel width and a ratio of the second width to the panel width being from
0.13 to 0.35;

a first light source, configured to emit a first light, the first light being emitted into the light-guiding rod through the
transmission surface; and

a second light source, configured to emit a second light, the second light being incident onto a first side surface of the
light-guiding rod and reflected into the light-guiding rod through the first reflection surface,

wherein the first light and the second light are homogenized by the light-guiding rod and transmitted to the image modulation
device through the second end, and the projection lens projects the image light formed by the image modulation device.

US Pat. No. 10,139,954

DISPLAY DEVICE AND OPERATING METHOD THEREOF

Qisda Optronics (Suzhou) ...

1. A display device, comprising:a display panel;
at least one touch sensor, configured to sense and output a touch sensing signal;
a touch sensor controller, electrically coupled to the at least one touch sensor and configured to receive the touch sensing signal and generate a touch sensing result accordingly;
a display controller, electrically coupled to the display panel and the touch sensor controller and configured to receive graphic data to generate first display data and determine whether to adjust the first display data to second display data and transmit the second display data to the display panel according to the touch sensing result, wherein the first display data has a first display feature, the second display data has a second feature, and the first display feature is different from the second display feature, wherein the first display feature is a first brightness or a first color temperature, and the second display feature is a second brightness or a second color temperature;
at least one distance sensor, configured to output a distance sensing signal; and
a distance sensor controller, electrically coupled to the at least one distance sensor and the display controller and configured to receive the distance sensing signal, generate a distance sensing result according to the received distance sensing signal, and transmit the distance sensing result to the display controller, wherein the display controller is further configured to determine whether to adjust the first display data to the second display data according to the distance sensing result and the touch sensing result.

US Pat. No. 9,904,041

PROJECTION LENS AND PROJECTION DEVICE THEREOF

Qisda Optronics (Suzhou) ...

1. A projection lens applied to image projection of a projection device, the projection device being used for projecting images
to a screen and comprising an imaging unit, the projection lens comprising:
a first lens group having a negative diopter, the first lens group being adjacent to the screen and having a first lens, the
first lens having a first negative diopter; and

a second lens group having a positive diopter, the second lens group being adjacent to the imaging unit and comprising a second
lens, a third lens, a fourth lens, and a fifth lens, the second lens having a second negative diopter, the third lens and
the fourth lens being located between the first lens and the second lens, the fifth lens being located between the imaging
unit and the second lens, the fifth lens being an aspherical lens;

wherein a refractive index of the first lens is less than or equal to 1.64, an ABBE number of the first lens represents Vd1, an ABBE number of the second lens represents Vd2, 0.4?Vd2/Vd1?1.2, a refractive index of the second lens is larger than or equal to 1.64 and is less than or equal to 1.87, the ABBE number
of the second lens is larger than or equal to 20 and is less than or equal to 35, and Vd1<50.

US Pat. No. 9,201,460

ELECTRONIC DEVICE WITH TOUCH FUNCTION

Qisda Corporation, Taoyu...

1. An electronic device with touch function comprising:
a back casing;
a front casing combined with the back casing so as to form an accommodating space;
a display panel disposed in the accommodating space; and
a touch panel fixed to a second side of the front casing and departed from the display panel with a predetermined distance,
the second side is opposite to a first side of the front casing;

wherein the front casing has a frame located at the second side, a recess is formed within the frame, the touch panel comprises
a touch module and a substrate, and the substrate is located at a lower surface of the touch module and accommodated in the
recess;

wherein the frame comprises a first step-shaped structure and a second step-shaped structure, the recess comprises a first
recess portion and a second recess portion, the first step-shaped structure surrounds the first recess portion, the second
step-shaped structure surrounds the second recess portion, the touch module is accommodated in the first recess portion, and
the substrate is accommodated in the second recess portion.

US Pat. No. 9,983,465

PROJECTOR

Qisda Optronics (Suzhou) ...

1. A projector, comprising:a casing;
an optic engine disposed in the casing;
a light module disposed in the casing;
a control circuit module disposed in the casing;
a first fan module disposed in the casing, the first fan module being an axial-flow fan module and having a first air inlet and a first air outlet, the first air inlet being close to and toward the control circuit module, the first air outlet being close to and toward the light module, the first fan module generating an air flow flowing through the control circuit module, the first fan module, and the light module in order; and
a second fan module disposed in the casing, the second fan module having a second air outlet close to the optic engine;wherein the air flow enters the casing in a first direction, flows through the control circuit module, the first fan module, and the light module, and then flows out of the casing in a second direction, and the first direction is perpendicular to the second direction.

US Pat. No. 9,519,817

METHOD FOR DIGITIZING BARCODE IMAGE BY USING DYNAMIC THRESHOLD

BenQ CO., LTD., Shanghai...

1. A method for digitizing a barcode image comprising:
capturing the barcode image by using an image sensor;
generating at least one sample line according to the barcode image;
acquiring sample data of the at least one sample line;
generating a first reference line;
generating a second reference line according to the sample data;
generating an upper bound of the second reference line according to the a difference between the first reference line and
the second reference line and a first multiplier factor;

generating a lower bound of the second reference line according to the difference between the first reference line and the
second reference line and a second multiplier factor;

generating a first curve by interpolating all sample points of the sample data;
generating a plurality of effective sample shapes of the first curve according to the upper bound and the lower bound of the
second reference line;

identifying an internal point of each effective sample shape;
generating a second curve by interpolating all internal points; and
digitizing the barcode image to binary data by comparing the sample data with the second curve.

US Pat. No. 10,054,848

PROJECTOR AND OPTICAL LENS MECHANISM THEREOF

Qisda Corporation, Taoyu...

1. A projector comprising:a holding casing having a hole structure;
a projection lens movably disposed through the hole structure, a first engaging structure being formed on an external surface of the projection lens;
a containing casing detachably fixed to the holding casing for forming a containing space;
an image projection module disposed in the containing space for performing image projection cooperatively with the projection lens; and
a flexible washer jacketing the projection lens and having a first ring structure, a connection ring structure, and a second ring structure, the first ring structure having a second engaging structure formed thereon corresponding to the first engaging structure, the first engaging structure being engaged with the second engaging structure for positioning the first ring structure on the projection lens when the flexible washer jackets the projection lens, the connection ring structure extending from the first ring structure to the second ring structure, the second ring structure being clamped between the holding casing and the containing casing for sealing the containing space cooperatively with the connection ring structure and the first ring structure when the containing casing is fixed to the holding casing.

US Pat. No. 9,785,816

BARCODE DECODING METHOD

Qisda Corporation, Taoyu...

1. A barcode decoding method, comprising:
capturing a target image of a target barcode by a barcode reader;
setting a target scanning line on the target image;
analyzing a relative relationship between at least two characteristic points of a gray level distribution of the target scanning
line to obtain at least one reference characteristic parameter;

determining a current distance between the barcode reader and the target barcode being a relatively long distance when the
at least one reference characteristic parameter fits to at least one first predetermined characteristic parameter;

dividing the gray level distribution of the target scanning line into at least one bar area and at least one space area according
to a predetermined gray level when the current distance is the relatively long distance;

setting a gray level region according to the predetermined gray level and locating at least one peak point and/or at least
one valley point located within the gray level region from the gray level distribution of the target scanning line;

interpolating a space corresponding to the peak point into the bar area when the peak point is located within the bar area;
and

interpolating a bar corresponding to the valley point into the space area when the valley point is located within the space
area.

US Pat. No. 9,668,329

METHOD FOR OPERATING AN ELECTRONIC DEVICE TO INCREASE LIGHT DENSITY AND ELECTRONIC DEVICE THEREOF

Qisda Corporation, Taoyu...

1. An electronic device, comprising:
a first light module configured to emit a first light;
a second light module configured to emit a second light;
a primary driver having a first control terminal configured to turn on the first light module during a first duration, and
a second control terminal configured to turn on the second light module during a second duration; and

a first secondary driver configured to turn on the first light module during the second duration.

US Pat. No. 9,664,991

PROJECTOR WITH LIGHT POLLUTION SHIELD FUNCTION AND LIGHT POLLUTION SHIELDING METHOD THEREOF

Qisda Corporation, Taoyu...

1. A light pollution shielding method for a projector, the projector comprising a projector body, a plurality of lens modules,
a lens disassembly sensing module, a light-emitting module and a control module, the projector body comprising a light-permissive
aperture, the plurality of lens modules being individually provided for an assembly to the light-permissive aperture of the
projector body, the lens disassembly sensing module being disposed in the projector body and corresponding to the light-permissive
aperture, the light-emitting module being disposed in the projector body and configured to emit lights toward the light-permissive
aperture, the control module being signally connected to the lens disassembly sensing module and the light-emitting module,
and the light pollution shielding method comprising steps of:
a) configuring the control module to sense, through the lens disassembly sensing module, whether any one of the plurality
of lens modules is being disassembled from the light-permissive aperture; and

b) configuring the control module to modulate a lighting intensity of the light-emitting module when the control module senses
that any of the plurality of lens modules is being disassembled from the light-permissive aperture.

US Pat. No. 9,531,426

ELECTRONIC DEVICE AND ANTENNA MODULE CAPABLE OF ADJUSTING ANTENNA CHARACTERISTICS DYNAMICALLY

Qisda Corporation, Taoyu...

1. An electronic device capable of adjusting antenna characteristics dynamically comprising:
a flexible antenna;
a sensing unit for sensing a curvature information of the flexible antenna, wherein the sensing unit comprises a first gravity
sensor and a second gravity sensor, the first gravity sensor is disposed adjacent to a middle part of the flexible antenna,
the second gravity sensor is disposed adjacent to an end part of the flexible antenna, the first gravity sensor is for sensing
a first movement information of the middle part, the second gravity sensor is for sensing a second movement information of
the end part, and the curvature information comprises the first movement information and the second movement information;

an antenna tuner, electrically connected to the flexible antenna;
a storage unit for storing a look-up table, wherein the look-up table records a plurality of curvature ranges and a plurality
of predetermined setting parameters, and each of the predetermined setting parameters is corresponding to one of the curvature
ranges; and

a processing unit, electrically connected to the sensing unit, the antenna tuner and the storage unit, the processing unit
is for calculating a curvature level of the flexible antenna based on the curvature information, compare the curvature level
with the curvature ranges to select a setting parameter corresponding to the curvature level from the predetermined setting
parameters, and set the antenna tuner according to the selected setting parameter.

US Pat. No. 10,003,548

DATA TRANSMISSION METHOD USING MULTIPLE WIRELESS NETWORKS

Qisda Corporation, Taoyu...

1. A data transmission method comprising:linking a first mobile device to a first wireless network with a first linking quality;
linking the first mobile device to a second wireless network with a second linking quality;
acquiring a sum of first bandwidth requirements of application programs currently running in the first mobile device;
acquiring a sum of second bandwidth requirements of application programs currently running in the first mobile device;
acquiring a bandwidth allocation result according to the first linking quality, the second linking quality, the sum of first bandwidth requirements, and the sum of second bandwidth requirements by the first mobile device;
establishing a data link to the first wireless network and/or the second wireless network from the first mobile device according to the bandwidth allocation result; and
performing data transmission between the application programs and the first wireless network and/or the second wireless network;
wherein the sum of second bandwidth requirements is greater than the sum of first bandwidth requirements, the bandwidth allocation result corresponds to a value of bandwidth utilization, and the value of bandwidth utilization is between the sum of first bandwidth requirements and the sum of second bandwidth requirements.

US Pat. No. 10,036,939

BIAXIALLY-TILTED DIGITAL MICROMIRROR PROJECTOR

Qisda Optronics (Suzhou) ...

1. A projector, comprising:an illumination system, adapted for illuminating an incident light;
a biaxially-tilted digital micromirror device (DMD), adapted for receiving the incident light and converting the incident light into an image light, the biaxially-tilted DMD being a first rectangular face comprising two opposite first long sides and two opposite first short sides;
a first prism, disposed between the illumination system and the biaxially-tilted DMD, the first prism comprising a first face and a second face connected and adjacent to the first face, and the incident light passing through the first face and the second face sequentially;
a second prism, disposed between the first prism and the biaxially-tilted DMD, the second prism comprising a third face, a fourth face, and a fifth face, the third face being connected and adjacent to the fourth face and the fifth face, the fourth face facing the biaxially-tilted DMD, the incident light passing through the third face and the fourth face sequentially and being transmitted to the biaxially-tilted DMD, the image light passing through the fourth face, being reflected by the third face, passing through the fifth face and being transmitted to a lens, wherein the fourth face of the second prism is a second rectangular face comprising two opposite second long sides and two opposite second short sides, the second long sides are parallel to the first long sides, and the second short sides are parallel to the first short sides; and
the lens, disposed opposite to the fifth face and adapted for receiving and projecting the image light;
wherein a refractive index of the first prism is smaller than a refractive index of the second prism.

US Pat. No. 10,036,804

ULTRASOUND SCANNING METHOD AND SYSTEM

Qisda Corporation, Taoyu...

1. An ultrasound scanning method comprising steps of:emitting N sets of ultrasound signals onto a target from N different angels and receiving the N sets of ultrasound signals reflected and/or scattered by the target, wherein each of the N sets of ultrasound signals corresponds to one of the N different angles and N is a positive integer greater than 1;
converting the N sets of ultrasound signals into N ultrasound input images;
binarizing the N ultrasound input images to obtain N binarized images;
comparing the N binarized images to determine whether a noise exists in at least one of the N binarized images;
when the noise exists in an i-th binarized image of the N binarized images, removing the noise from an i-th ultrasound input image corresponding to the i-th binarized image, wherein i is a positive integer smaller than or equal to N; and
compounding the N ultrasound input images into an ultrasound output image,
wherein the step of binarizing the N ultrasound input images to obtain N binarized images further comprises:
selecting one of the N ultrasound input images as a reference image;
dividing each of the N ultrasound input images into M blocks wherein M is a positive integer;
averaging all pixels for each of the M blocks of the reference image to obtain M binarized thresholds; and
binarizinq the M blocks for each of the N ultrasound input images by the M corresponding binarized thresholds to obtain the N binarized images, and
the step of comparing the N binarized images to determine whether a noise exists in at least one of the N binarized images further comprises:
comparing the M corresponding blocks for each of the binarized images corresponding to the ultrasound input images other than the reference image individually with the M corresponding blocks for the binarized image corresponding to the reference image; and
when a pixel difference between two corresponding blocks is greater than a noise filtering threshold, determining that the noise exists in the block corresponding to the ultrasound input image other than the reference image.

US Pat. No. 9,885,822

DISPLAY DEVICE

Qisda Corporation, Taoyu...

1. A display device comprising:
a display panel having an active area, a first edge, a second edge, a third edge and a fourth edge surrounding the active
area, the first edge is adjacent to the second edge and the third edge, the first edge is opposite to the fourth edge; and

a backlight module, the display panel being disposed on the backlight module, the backlight module comprising:
a light guide plate comprising a plurality of first diffusion dots and a plurality of second diffusion dots, the first diffusion
dots being arranged corresponding to the active area, the second diffusion dots being arranged corresponding to a periphery
of the active area, the second edge and the third edge, a diameter of the second diffusion dot being smaller than a diameter
of the first diffusion dot;

a light converting film disposed on the light guide plate; and
a side-emitting light source disposed only beside the light guide plate corresponding to the first edge, the side-emitting
light source emitting a first color light into the light guide plate;

wherein the first diffusion dots and the second diffusion dots guide the first color light to the light converting film uniformly,
and the light converting film converts the first color light into a second color light.

US Pat. No. 10,114,278

LIGHT SPLITTING MODULE AND PROJECTION APPARATUS THEREOF

Qisda Corporation, Taoyu...

1. A light splitting module comprising:at least one first light source for emitting a first color light, the first color light comprising a first primary color light and a second primary color light;
at least one second light source for emitting a second color light, the second color light comprising a third primary color light;
a color wheel aligned with the first light source and the second light source for splitting the first color light and the second color light into a plurality of image forming lights in a duty cycle, the color wheel having a first color section, a second color section and a transparent section formed thereon, the first color section allowing the second color light and the first primary color light to pass through, the second color section allowing the second color light and the second primary color light to pass through; and
a modulator coupled to the first light source, the second light source and the color wheel for selectively modulating a first incidence time of the first color light on the first color section to adjust a first output ratio of the first primary color light in the plurality of image forming lights, modulating a second incidence time of the first color light on the second color section to adjust a second output ratio of the second primary color light in the plurality of image forming lights and modulating a third incidence time of the first color light on the transparent section to perform brightness adjustment of the plurality of image forming lights.

US Pat. No. 10,197,788

PROJECTOR

Qisda Optronics (Suzhou) ...

1. A projector, comprising:a color wheel module for producing a color light, the color wheel module comprising:
a rotation device comprising a rotary part having a rotary surface rotating in a rotation direction;
a mount comprising an anti-dust structure having a curved surface, the rotation device being fixed on the mount, the curved surface being a continuous surface, the curved surface being opposite to the rotary surface and extending in the rotation direction, the curved surface having a first section and a second section in order in the rotation direction, the first section and the rotary surface forming a first distance therebetween in a direction perpendicular to a rotation axis of the rotary part, the second section and the rotary surface forming a second distance therebetween in a direction perpendicular to the rotation axis of the rotary part, the first distance being larger than the second distance;
a color wheel fixed on the rotary part; and
an optical sensor fixed on the mount and having a sensing surface toward the rotary surface, the curved surface and the sensing surface being arranged in order in the rotation direction; and
an optical engine for receiving the color light.

US Pat. No. 10,108,074

OPTICAL ENGINE MODULE

Qisda Corporation, Taoyu...

1. An optical engine module comprising:a casing having an accommodating space and a baffle, the baffle being located in the accommodating space;
a bracket, a first end of the bracket having at least one first block portion, the bracket being disposed in the accommodating space, a second end of the bracket being oriented towards the baffle, the first end being opposite to the second end, an inner surface of the bracket having a retaining portion adjacent to the second end;
a light pipe disposed in the bracket and abutting against the at least one first block portion, the retaining portion retaining the light pipe in the bracket;
a cover disposed on the second end of the bracket and abutting against the baffle; and
a resilient member configured to generate an elastic force to push the bracket towards the baffle.

US Pat. No. 9,528,964

METHOD OF DETECTING A STATE OF A COATED GEL

Qisda Corporation, Taoyu...

1. A method of detecting a state of a coated gel coated on an ultrasound probe, the method comprising:
coating a gel on the ultrasound probe;
scanning and generating a scanned image;
dividing the scanned image into a strong echo area and a weak echo area; and
detecting signal variation in the strong echo area of the scanned image to determine the state of the coated gel coated on
the ultrasound probe.

US Pat. No. 10,085,715

ULTRASONIC SCANNING SYSTEM

Qisda Corporation, Taoyu...

1. An ultrasonic scanning system comprising:a host device;
an ultrasonic probe electrically connected to the host device for performing an ultrasonic scanning operation toward a detecting region to generate a scanning signal and transmitting the scanning signal to the host device;
a first sleeving member having a frame portion and an arm portion, the frame portion having an opening to expose an ultrasonic signal detecting surface of the ultrasonic probe, the arm portion extending from the frame portion toward the ultrasonic probe and being detachably connected to the ultrasonic probe, the frame portion further having a first frame structure and a second frame structure, the first frame structure being telescopically connected to the second frame structure to form the opening cooperatively with the second frame structure, and the first frame structure being slidable relative to the second frame structure for adjusting an area of the opening; and
at least two electrodes attached to the frame portion and connected to the first frame structure and the second frame structure respectively, the at least two electrodes being connected to the host device for detecting a physiological signal of the detecting region and transmitting the physiological signal to the host device.

US Pat. No. 10,091,473

DRIVER CIRCUIT HAVING LIGHT SOURCE DRIVER AT PRIMARY SIDE

Qisda Corporation, Taoyu...

1. A driver circuit comprising:a first voltage converter configured to convert a first voltage to a second voltage, comprising:
a first terminal configured to receive the first voltage; and
a second terminal configured to output the second voltage;
a light source driver configured to convert the second voltage to a third voltage, comprising:
a third terminal coupled to the second terminal of the first voltage converter; and
a fourth terminal configured to output the third voltage to a light source for providing light;
a second voltage converter configured to convert the second voltage to a fourth voltage, comprising:
a fifth terminal coupled to the second terminal of the first voltage converter; and
a sixth terminal configured to output the fourth voltage; and
a control circuit coupled to the sixth terminal of the second voltage converter and configured to output a first control signal to control the light source driver to control the light source;
wherein the first voltage is lower than the second voltage, the second voltage is higher than the third voltage, and the second voltage is higher than the fourth voltage,
wherein the light source driver configured to receive a second control signal generated according to the first control signal,
the driver circuit further comprises a photo coupler coupled between the control circuit and the light source driver, and configured to provide electrical isolation and generate the second control signal according to the first control signal.

US Pat. No. 9,952,487

PROJECTOR

Qisda Corporation, Taoyu...

1. A projector, comprising:a casing having a top plate and a bottom plate, the top plate having a plurality of top holes, the bottom plate having a plurality of bottom holes;
an optical engine disposed in the casing and between the top plate and the bottom plate, the optical engine comprising a light source module, an image-forming module, and a light pipe connected between the light source module and the image-forming module;
a plurality of heat sinks disposed around the optical engine, each heat sink having a plurality of fins and a plurality of air channels formed between the fins of the plurality of heat sinks, the plurality of heat sinks including a first heat sink, a second heat sink, and a third heat sink respectively disposed on three sides of the light source module, so that the plurality of fins of the plurality of heat sinks are arranged parallel to each other along the three sides, wherein the top holes are aligned and communicate with the bottom holes through the air channels straightly; and
an auxiliary heat sink disposed on top of the image-forming module, the auxiliary heat sink having a plurality of fins parallel to each other and extending toward the top plate to form a plurality of auxiliary air channels between the fins of the auxiliary heat sink.

US Pat. No. 9,891,034

COORDINATE SENSING SYSTEM, COORDINATE SENSING METHOD AND DISPLAY SYSTEM

Qisda Corporation, Taoyu...

1. A device control system comprising:
a handheld device comprising:
a magnetic member having a magnetic dipole moment, a Z direction of the handheld device is parallel to a direction of the
magnetic dipole moment; and

a direction sensor for sensing a direction of the magnetic dipole moment;
a magnetic sensor for sensing a magnetic field of the magnetic member; and
a processor communicating with the direction sensor and electrically connected to the magnetic sensor, the processor being
used for calculating a distance between the magnetic member and the magnetic sensor and calculating a direction of the distance
according to the magnetic dipole moment, the direction of the magnetic dipole moment and the magnetic field, the processor
being further used for calculating a 3D coordinate of the magnetic member according to the distance and the direction of the
distance relative to a line from the magnetic member to the magnetic sensor, and a display device executes a predetermined
function according to the 3D coordinates of the magnetic member.

US Pat. No. 10,162,251

LIGHT INTEGRATING SYSTEM AND PROJECTION APPARATUS THEREOF

Qisda Corporation, Taoyu...

11. A projection apparatus comprising:a light integrating system comprising:
an integrator rod having a light-integrating axis, a first light-entrance surface, a second light-entrance surface, a first reflection inclined surface, and a first light-exit surface, the first light-entrance surface and the first reflection inclined surface being opposite to each other and connected to two sides of the second light-entrance surface respectively, the second light-entrance surface and the first light-exit surface being opposite to each other and perpendicular to the light-integrating axis;
a triangular prism adjacent to the second light-entrance surface, the triangular prism having a third light-entrance surface, a second light-exit surface, and a second reflection inclined surface, the second light-exit surface facing the second light-entrance surface and being perpendicular to the light-integrating axis, the second reflection inclined surface being connected to the third light-entrance surface and the second light-exit surface respectively;
a first light source facing the first light-entrance surface, light of the first light source being incident into the integrator rod through the first light-entrance surface and being reflected by the first reflection inclined surface to emit out of the first light-exit surface along the light-integrating axis; and
a second light source facing the third light-entrance surface to be misaligned with the first light source, light of the second light source being incident into the triangular prism through the third light-entrance surface and being reflected by the second reflection inclined surface to emit out of the first light-exit surface through the second light-exit surface and the second light-entrance surface sequentially along the light-integrating axis for forming a light beam cooperatively with the light of the first light source;
a light splitting system adjacent to the first light-exit surface for receiving the light beam and then splitting the light beam into image forming lights; and
a projector lens system receiving the image forming lights for projecting a color image.

US Pat. No. 9,894,331

PROJECTOR DEVICE AND HEAT DISSIPATION SYSTEM THEREOF

Qisda Corporation, Taoyu...

1. A projector device heat dissipation system, comprising:
a heat dissipating target chip having a bottom surface, the bottom surface has a heat dissipating area; and
a heat dissipating module having:
a heat dissipating body having a connection end opposite the bottom surface; and
a heat passage extending from the connection end and heat exchange connected to the heat dissipating area, and the heat passage
has a first wall surface connected between the heat dissipating area and the heat dissipating body, and at least a portion
of the first wall surface extends slanted outwards toward the heat dissipating body;

wherein the heat passage has a first cross-section and a second cross-section parallel to the heat dissipating area, the second
cross-section is farther away than the first cross-section to the heat dissipating area, and an area of the second cross-section
is greater than the area of the first cross-section.

US Pat. No. 10,338,457

ELECTRONIC DEVICE CASING AND PROJECTOR

Qisda Corporation, Taoyu...

1. An electronic device casing, comprising:a first casing member, having a first indentation; and
a second casing member, comprising a casing member body and a detachable part attached to the casing member body, the detachable part having a second indentation, the first casing member and the second casing member being engaged with each other to form an internal accommodating space and an exposed recess, the first indentation and the second indentation are oppositely disposed to form a component installation opening connected to the internal accommodating space at the exposed recess, the casing member body comprising a bottom wall, the detachable part and the bottom wall forming an air flow bypass passage between the exposed recess and the bottom wall, two ends of the air flow bypass passage being connected to the internal accommodating space, the two ends being located at two sides of the exposed recess.

US Pat. No. 10,255,842

DISPLAYING SYSTEM HAVING A FUNCTION OF SENSING DISPLAYING PROPERTIES

Qisda Corporation, Taoyu...

1. A displaying system having a function of sensing displaying properties, the displaying system comprising:a displaying panel having a displaying surface, the displaying surface comprising a presentation area and a first function area, the first function area being at a first side of the displaying panel, the first function area having a first length in pixels parallel to the first side, the presentation area having a second length in pixels parallel to the first side, the first length in pixels being longer than or equal to the second length in pixels;
a controlling module electronically connected to the displaying panel, the controlling module controlling the displaying panel to display a presentation image in the presentation area and a first image for inspection in the first function area;
a first optical sensor electronically connected to the controlling module and disposed over the first function area, the first optical sensor directly facing a portion of the first function area and sensing a first sub-image of the first image for inspection to generate a first inspection signal relative to the first sub-image; and
at least one second optical sensor electrically connected to the controlling module and disposed over the first function area, each second optical sensor directly facing another portion of the first function area and sensing a second sub-image of the first image for inspection to generate a corresponding second inspection signal relative to the second sub-image;
wherein the controlling module controls the first optical sensor and the at least one second optical sensor to simultaneously sense the first sub-image and the at least one second sub-image respectively, and the controlling module receives the first inspection signal and the at least one second inspection signal from the first optical sensor and the at least one second optical sensor respectively and controls the displaying panel to display the presentation image in the presentation area according to the first inspection signal and the at least one second inspection signal individually;
wherein the corresponding portions of the first image for inspection sensed by the first optical sensor and the at least one second optical sensor are identical, and the controlling module compares the first inspection signal and the at least one second inspection signal.

US Pat. No. 10,462,930

FAN DEVICE AND ELECTRONIC DEVICE

Qisda Corporation, Taoyu...

1. An electronic device, comprising:a housing having a plurality of heat sinks disposed on an external surface of the housing; and
a fan, comprising:
a stator unit disposed inside the housing; and
a rotor unit disposed outside the housing corresponding to the stator unit, the rotor unit comprising a fan wheel, wherein the rotor unit is isolated from the stator unit by the housing, the fan wheel is disposed on the housing, and the fan wheel and the plurality of heat sinks are on the same side of the housing.

US Pat. No. 10,306,497

METHOD FOR DETERMINING STABILITY OF A WIRELESS SIGNAL AND SYSTEM THEREOF

Qisda Corporation, Taoyu...

1. A method for determining stability of a wireless signal comprising:transmitting a plurality of transmitted testing signals periodically during a time interval;
receiving the plurality of transmitted testing signals and identifying at least one received testing signal from the plurality of transmitted testing signals; and
generating a first signal stability indicator according to a time weighting of each received testing signal of the at least one received testing signal;
wherein the time weighting is a positive real value equal to ?kth power of an absolute time difference, the absolute time difference is an absolute value of a time difference between an arrival time of the each received testing signal and a current time, k is a positive integer, and a time weighting of a received testing signal later identified is greater than a time weighting of a received testing signal previously identified.

US Pat. No. 10,228,286

DISPLAY DEVICE

Qisda Corporation, Taoyu...

1. A display device, comprising:a housing;
a display module disposed on the housing, wherein the display module exposes a display plane facing a first direction vertical to the display plane;
a carrier movably connected to the housing and disposed outside the housing or on a back side of the display module, wherein the back side faces to a second direction opposite to the first direction; and
a color correction module disposed on the carrier and having a sensing face,
wherein, the carrier is selectively disposed at a first position or a second position with respect to the housing, and when the carrier is at the second position, the sensing face of the color correction module is moved to face the display plane.

US Pat. No. 10,429,725

PRISMLESS, NON-TELECENTRIC PROJECTOR

Qisda Corporation, Taoyu...

1. A prismless, non-telecentric projector, comprising:a light source module for providing an incident light;
a biaxially-tilted digital micro mirror device (DMD) for receiving and converting the incident light into an imaging light;
a lens set, disposed between the light source module and the biaxially-tilted DMD, for transmitting the incident light to the biaxially-tilted DMD, wherein the lens set is composed of a first lens group and a second lens group and an effective focal length ratio of the second lens group to the first lens group is greater than or equal to 1.4 and smaller than or equal to 1.8, wherein the first lens group is composed of two spherical lenses; and
an imaging lens for receiving and projecting the imaging light.

US Pat. No. 10,398,504

ULTRASOUND CATHETER AND MEDICAL SYSTEM USING THE SAME

Qisda Corporation, Taoyu...

1. An ultrasound catheter, comprising:a hollow body constructed by a flexible circuit board; and
a plurality of ultrasound sensing regions disposed on a periphery of the hollow body, wherein each of the ultrasound sensing regions is made of a piezoelectric material, each of the ultrasound sensing regions comprises a plurality of channels, and the channels of the ultrasound sensing regions are arranged along an axial direction of the hollow body.

US Pat. No. 10,399,120

ULTRASOUND PROBE

Qisda Corporation, Taoyu...

1. An ultrasound probe, comprising:a matching element;
a backing layer;
a piezoelectric element disposed between the matching element and the backing layer and having a variable thickness along a short axis; and
a driver;
wherein the driver generates an adjustable coding wave inputted to the piezoelectric element, such that the piezoelectric element outputs a focusing sonic wave field correspondingly modulated according to the adjustment of the coding wave and the thickness of the piezoelectric element;
wherein the piezoelectric element comprises an edge portion and a middle portion, the piezoelectric element has a thickness diminishing in a direction towards the middle portion from the edge portion, the coding wave comprises a high frequency wave-pattern and a low frequency wave-pattern, and the time sequence of the coding wave changes to the high frequency wave-pattern from the low frequency wave-pattern; and
wherein the piezoelectric element has a concave surface and a plane opposite to the concave surface, the concave surface backs to a detecting direction, and the plane faces the detecting direction.

US Pat. No. 10,382,803

DISPLAY DEVICE AND SIGNAL SOURCE SWITCHING METHOD

Qisda Corporation, Taoyu...

1. A display device comprising:a USB Type-C connector module comprising a USB Type-C connector, a configuration channel logic IC, and a channel switching multiplexer, the USB Type-C connector being electrically connected to the configuration channel logic IC and the channel switching multiplexer, the configuration channel logic IC being electrically connected to the channel switching multiplexer;
an audio/video signal switching unit electrically connected to the channel switching multiplexer;
a processing unit electrically connected to the configuration channel logic IC, the channel switching multiplexer, and the audio/video signal switching unit; and
a display unit electrically connected to the processing unit;
wherein the audio/video switching unit comprises a digital decoder and an audio/video signal multiplexer, the digital decoder is electrically connected to the channel switching multiplexer, the audio/video signal multiplexer is electrically connected to the digital decoder and the processing unit, the processing unit selectively reads a channel setting state from one of the configuration channel logic IC and the channel switching multiplexer and determines whether the channel setting state comprises an audio/video channel; when the processing unit determines that the channel setting state comprises the audio/video channel, the processing unit controls the audio/video switching unit to switch a signal source of the display unit to a signal source of the USB Type-C connector module.

US Pat. No. 10,378,706

TABLE LAMP CAPABLE OF CORRECTING READING HABITS

Qisda Corporation, Taoyu...

1. A table lamp comprising:an infrared light sensor configured to detect infrared light;
a first distance detection unit configured to detect a first distance between an external object and the first distance detection unit when the infrared light is beyond a predetermined intensity range;
a light source configured to emit light; and
a control unit configured to control the light source at least according to intensity of the infrared light detected by the infrared light sensor and the first distance;
wherein the control unit turns on the light source when the intensity of the infrared light is beyond the predetermined intensity range and the first distance is smaller than a predetermined value.

US Pat. No. 10,460,142

BARCODE IDENTIFICATION METHOD FOR IMPROVING DECODING RELIABILITY BY CORRECTING IMAGE DISTORTION

Qisda Corporation, Taoyu...

1. A barcode identification method comprising:generating a binarization barcode by using a binarization process from a sampled barcode;
acquiring a first region from the binarization barcode;
acquiring a first narrow element width from the first region;
acquiring a second region from the binarization barcode;
acquiring a second narrow element width from the second region;
generating an extension region by extending the second region when the second narrow element width is smaller than the first narrow element width;
generating a plurality of binarization sequences corresponding to the extension region;
eliminating a binarization sequence of the plurality of binarization sequences when at least one value of the binarization sequence is inconsistent with the first narrow element width;
decoding at least one of the binarization sequences for generating at least one decoded sequence by using a lookup table; and
verifying the at least one decoded sequence for generating a verified sequence by using a checksum code.

US Pat. No. 10,459,072

ULTRASOUND PROBE AND ULTRASOUND SYSTEM

Qisda (Suzhou) Co., Ltd.,...

1. An ultrasound probe comprising:a casing;
a first transmitting unit for transmitting a first push beam, the first push beam having a first transmitting frequency;
a second transmitting unit for transmitting a second push beam, the second push beam having a second transmitting frequency, the first transmitting frequency being different from the second transmitting frequency;
a receiving unit having a receiving frequency, the receiving unit being used for selectively receiving a reflective wave of the first push beam and the second push beam, the receiving frequency being covered with the first transmitting frequency and the second transmitting frequency, the receiving unit, the first transmitting unit and the second transmitting unit being disposed in the casing side by side; and
a matching layer disposed on the receiving unit, the first transmitting unit and the second transmitting unit;
wherein the receiving frequency is two times the first transmitting frequency and the second transmitting frequency is four times the first transmitting frequency, such that a thickness of the receiving unit is ½ times a thickness of the first transmitting unit, a thickness of the second transmitting unit is ¼ times the thickness of the first transmitting unit, and a thickness of the matching layer is uniform.

US Pat. No. 10,379,433

PROJECTOR AND RELATED METHOD FOR PROJECTING A LIGHT BEAM

Qisda Corporation, Taoyu...

1. A method for projecting a light beam with a projector, the projector comprising a light source, a phosphor wheel and a digital mirror device (DMD), the phosphor wheel having a plurality of color sections, the method comprising:the light source projecting a light source beam with a first intensity onto a first color section of the plurality of color sections when the DMD is operated at a first duty cycle;
generating first real brightness of the light beam;
determining whether a first difference between the first real brightness and first target brightness of the light beam is less than a first threshold;
if the first difference is less than the first threshold, continuing to operate the DMD at the first duty cycle and to use the light source to project the light source beam onto the phosphor wheel at the first intensity when the light source is projecting the light source beam onto the first color section; and
if the first difference is greater than the first threshold, using the light source to project the light source beam onto the first color section at a second intensity, and operating the DMD at a second duty cycle when the light source is projecting the light source beam onto the first color section;
wherein the second duty cycle is different from the first duty cycle or the second intensity is different from the first intensity.

US Pat. No. 10,264,357

AUDIO FREQUENCY GENERATING DEVICE AND AUDIO FREQUENCY GENERATING METHOD

Qisda Corporation, Taoyu...

7. An audio frequency generating method comprising steps of:selecting M fundamental frequencies from N fundamental frequencies of at least one of at least one chord, wherein N is a positive integer larger than one and M is a positive integer larger than one and smaller than or equal to N;
using the M fundamental frequencies to generate a first audio frequency;
using a frequency difference to adjust each of the M fundamental frequencies to generate a second audio frequency; and
outputting the first audio frequency and the second audio frequency.