US Pat. No. 9,473,847

ACOUSTIC APPARATUS

Yamaha Corporation, Hama...

1. An acoustic apparatus comprising:
a cabinet;
a vibration part configured to generate an acoustic vibration;
a first tube having a cavity that faces the vibration part; and
at least one second tube, the second tube being an open tube and being connected to the first tube via a first open end and
a second open end,

wherein a length of the at least one second tube is an integer-fold of a half of a wavelength of a standing wave produced
in the first tube,

wherein the first open end is positioned at an anti-node of the standing wave produced in the first tube, and
wherein the vibration part, the first tube and the at least one second tube are housed in the cabinet.

US Pat. No. 9,432,767

HEADPHONE WITH MICROPHONES THAT PROCESSES EXTERNAL SOUND PICKUP BY THE MICROPHONES AND INPUTS EXTERNAL SOURCE SOUND SIGNAL

YAMAHA CORPORATION, Hama...

1. A headphone comprising:
a pair of earphone units each including a speaker and a plurality of microphones arranged at a back side of the speaker in
a given pattern and through which external sounds are picked up;

a directional sound pickup signal generator configured to generate a plurality of sound pickup signals each having a given
directivity, using a plurality of signals output from the plurality of microphones;

an external source sound signal generator through which an external source sound signal from an external source is input;
and

a sound emission signal generator configured to:
receive a designation of a bearing;
select at least one sound pickup signal from the plurality of sound pickup signals based on the received bearing;
generate an individual bearing sound pickup signal having a directivity corresponding to the received bearing using the selected
sound pickup signal;

combine the individual bearing sound pickup signal and the external source sound signal to generate sound emission signals
to be input to the speakers of the earphone units.

US Pat. No. 9,327,644

SOUND GENERATING DEVICE FOR VEHICLE, AND SOUND GENERATING METHOD FOR VEHICLE

YAMAHA HATSUDOKI KABUSHIK...

1. A sound generating device for a vehicle that transmits an air intake sound of an engine of a vehicle to an occupant inside
the vehicle, the sound generating device comprising:
a plurality of pressure sensors that detect pressures of air intake pulsation of the engine and outputting the pressures as
pressure signals,

the plurality of pressure sensors being provided at an interval in a circumferential direction of an outer periphery of an
air intake duct at positions on an air cleaner side of the air intake duct with respect to a center of the air intake duct,

the air intake duct connecting the air cleaner to an air amount control valve,
the air cleaner being provided on an air inlet side of the air intake duct on which outside air is to be taken in,
the air amount control valve being provided on the engine side of the air intake duct;
a signal processor that performs processing of changing the pressure signals in accordance with a driving condition of the
vehicle; and

a loudspeaker installed inside the vehicle that outputs a sound pressure signal processed by the signal processor as the air
intake sound of the engine.

US Pat. No. 9,103,484

CONNECTION DEVICE

Yamaha Corporation, Hama...

1. A connection device comprising: a pedestal having a placement face; a connector provided in the placement face of the pedestal;
a support provided adjacent to the pedestal and extended in a direction crossing the placement surface of the pedestal and
having a face to define a space for placing a portable terminal on the connector and on a contact portion in the face of the
support, wherein the contact portion is movable and the support is rotatable in a direction away from the portable terminal
when the contact portion contacts the portable terminal to change an inclination of the support with respect to the pedestal,
and an amount of movement of the contact portion and an amount of rotation of the support are changed depending on a thickness
of the portable terminal; and an elastic member that is deformed by the movement of the contact portion and the rotation of
the support and applies an elastic force generated by the deformation of the elastic member in a direction of blocking the
movement of the contact portion and the rotation of the support.

US Pat. No. 9,479,851

VEHICLE SOUND GENERATION APPARATUS, AND VEHICLE SOUND GENERATION METHOD

YAMAHA HATSUDOKI KABUSHIK...

1. A vehicle sound generation apparatus for transmitting an intake sound of an engine of a vehicle to an occupant in the vehicle,
characterized by comprising:
a first pressure sensor which is provided on an intake duct, the intake duct connects an air cleaner provided on a side of
the intake duct toward an intake port that introduces external air and a throttle body provided on a side of the intake duct
toward the engine, the first pressure sensor being located on the air cleaner side of a midpoint between the air cleaner and
a throttle valve provided in the throttle body, detecting pressure of intake pulsation of the engine, and outputting a pressure
signal representing the detected pressure;

a second pressure sensor which is provided between the engine and the throttle valve and which detects the pressure of the
intake pulsation of the engine and outputs a pressure signal representing the detected pressure;

a signal processor which performs processing of changing the pressure signals output from the first and second pressure sensors
in accordance with an operation state of the vehicle;

a speaker disposed in the vehicle and outputting the pressure signals processed by the signal processor as the intake sound
of the engine; and

a noise gate processor which performs noise gate processing on the pressure signals before being processed by the signal processor.

US Pat. No. 9,424,816

ELECTRIC STRINGED INSTRUMENT HAVING A PIVOTABLE BODY

YAMAHA CORPORATION, Hama...

1. An electric stringed instrument comprising:
an instrument main body that includes front and rear sides, and a rotating axis extending in a longitudinal direction of the
instrument main body, the front side including a structure configured to hold a string; and

a pair of first and second frames connected to the instrument main body,
wherein the first frame is rotatable about the rotating axis toward the second frame while going around the rear side of the
instrumental main body, and

wherein the instrument main body has a first lateral side and second lateral side that is different from the first lateral
side,

wherein the second frame is immovably fixed to the instrument main body and disposed at the second lateral side,
wherein the first frame is rotatable from the first lateral side to the second lateral side so that the first frame becomes
disposed at the second lateral side together with the second frame.

US Pat. No. 9,190,040

BASS DRUM

Yamaha Corporation, Hama...

1. A bass drum, comprising:
a hollow cylindrical shell;
a drumhead extending across an open end of the shell, wherein the drumhead includes a striking surface having an outer periphery
located adjacent the shell, and wherein the striking surface extends across a center of the drumhead, and wherein the drumhead
has an opposing surface facing the striking surface; and

an elastic sheet coupled to the opposing surface at one or more fixing locations which are located within the outer periphery
of the striking surface, the elastic sheet extending radially inward from the fixing locations across the center of the drumhead.

US Pat. No. 9,613,608

KEYBOARD UNIT

YAMAHA CORPORATION, Hama...

20. A keyboard unit comprising:
a key;
a hammer; and
a plurality of members, including the key and the hammer, that cause the hammer to be moved, and each having an engagement
section that is engageable with another engagement section of another member, among the plurality of members, so that the
engagement section and the another engagement section come into contact with each other, an engagement state thereof being
changeable by a movement of the key and at least a pair of engagement sections that come into contact with each other having
a conductive portion;

a detector configured to detect the engaged state of the pair of engagement sections by detecting a conduction state between
the conductive portions of the pair of the engagement sections that are in contact with each other; and

a processor configured to implement instructions stored in a memory and perform a determining task that determines a musical
sound parameter based on a detection result of the detector.

US Pat. No. 9,431,986

SOUND PROCESSING APPARATUS AND SOUND PROCESSING METHOD

Yamaha Corporation, Hama...

1. A sound processing apparatus, comprising:
an information acquisition unit which acquires control information including at least one of mode information for designating
a reproduction mode of the sound processing apparatus and attribute information for designating an attribute of an audio content
represented by a sound signal;

a frequency band expansion unit which performs frequency band expansion processing for adding an expanded component generated
from the sound signal to the sound signal, wherein the frequency band expansion processing is performed based on the sound
signal having undergone sound compression; and

a control unit which changes parameters to be applied to the frequency band expansion processing in accordance with the control
information acquired by the information acquisition unit, wherein

the frequency band expansion unit shifts a fundamental component by a given shift amount in a specified frequency band of
the sound signal on a frequency domain to generate the expanded component, and

the control unit controls a frequency range of the specified frequency band and the given shift amount of the fundamental
component in accordance with the control information acquired by the information acquisition unit.

US Pat. No. 9,251,774

SIGNAL PROCESSOR FOR MUSICAL PERFORMANCE OF WIND INSTRUMENT USING A MUTE

Yamaha Corporation, Hama...

1. A signal processor for use in musical performance of a wind instrument using a mute for reducing volume of a sound generated
by the wind instrument, the signal processor comprising:
a signal processing circuit which receives an electric signal converted from a sound generated in a state where the mute is
used, processes the received electric signal to cancel changes in frequency characteristic of the sound caused by the mute,
and then outputs the processed electric signal, wherein

the signal processing circuit is formed of a FIR filter for performing convolution operation on a received electric signal,
and a filtering coefficient memory storing filtering coefficients that is to be used for the convolution operation performed
by the FIR filter to determine a transfer function.

US Pat. No. 9,390,703

MASKING SOUND GENERATING APPARATUS, STORAGE MEDIUM STORED WITH MASKING SOUND SIGNAL, MASKING SOUND REPRODUCING APPARATUS, AND PROGRAM

Yamaha Corporation, Hama...

15. A masking sound generating apparatus comprising:
a non-transitory recording medium containing a program; and
a processor that, when executing the program, is caused to perform:
acquiring a sound signal sequence Xacq which represents a speech;
extracting plural sound signal sequences in different intervals of a subject sound signal sequence Xsubj, the subject sound
signal sequence Xsubj based on the acquired sound signal sequence Xacq;

superimposing the extracted sound signal sequences on each other on the time axis into a superimposed sound signal sequence
Xsuperimp such that the order of phonemes in each of the different intervals remains the same as in the acquired sound signal
sequence Xacq; and

generating a masking sound signal based on the superimposed sound signal sequence Xsuperimp.

US Pat. No. 9,341,475

GEOMAGNETISM MEASUREMENT APPARATUS

Yamaha Corporation, Hama...

1. A geomagnetism measurement apparatus mounted in an instrument containing a part having a soft magnetic material, the geomagnetism
measurement apparatus comprising:
a three-dimensional magnetic sensor configured to detect magnetic components in three directions, the magnetic components
being influenced by a magnetic field produced by the soft magnetic material, and wherein the three-dimensional magnetic sensor
is configured to output magnetic data representing a vector of three-dimension composed of the detected magnetic components;
and

a central processing unit configured to execute program instructions to realize a plurality of functional sections comprising:
an ellipsoid generation section configured to calculate coordinates representing an ellipsoidal central point of each of at
least two ellipsoids selected from among a first ellipsoid, a second ellipsoid, and a third ellipsoid, each of which has a
different shape, wherein coordinates indicated by a plurality of the magnetic data are distributed in the vicinity of a surface
of each of the at least two ellipsoids;

an ellipsoidal central point decision section configured to decide whether or not a distance between the coordinates representing
the ellipsoidal central points of the at least two ellipsoids is equal to or less than a threshold value; and

a correction value generation section configured to calculate an ellipsoidal correction matrix for converting coordinates
on an ellipsoid into coordinates on a sphere based on a coefficient matrix representing a shape of the at least one of the
at least two ellipsoids and also configured to calculate coordinates of a central point based on the coordinates representing
the ellipsoidal central point of the at least one ellipsoid, using values of the ellipsoidal correction matrix and the central
point to calculate a direction of the geomagnetism based on the magnetic data outputted from the three-dimensional magnetic
sensor, in accordance with a decision result of the ellipsoidal central point decision section.

US Pat. No. 9,343,051

PERFORMANCE INFORMATION OUTPUT CONTROL APPARATUS, KEYBOARD INSTRUMENT AND CONTROL METHOD THEREOF

YAMAHA CORPORATION, Hama...

1. A performance information output control apparatus comprising:
a detection part that detects a plurality of positions of a music performance interface during a single stroke with respect
to an operator of a keyboard instrument, the music performance interface including a mechanism that interlocks with the operator
of the keyboard instrument;

an estimated music-sound generation time analysis part that:
calculates an estimated music-sound generation time point representing a time point at which music sound according to the
single stroke with respect to the operator is estimated to be generated, based on a detection result of the positions of the
music performance interface by the detection part; and

determines an output timing at which music performance information representing music performance contents corresponding to
the single stroke with respect to the operator is output by dynamically changing a time period by a detection by the detection
part to an output of the music performance information according to a speed of the mechanism that interlocks with the operator
obtained from the detection result from the detection part; and

a music performance information output part that outputs the music performance information at the output timing determined
by the estimated music-sound generation time analysis part prior to the calculated estimated music-sound generation time point.

US Pat. No. 9,332,341

AUDIO SIGNAL PROCESSING SYSTEM AND RECORDING METHOD

Yamaha Corporation, Hama...

1. An audio signal processing system comprising:
a mixer apparatus; and
a processing apparatus configured to be communicatively connected with said mixer apparatus and having an audio recording
function, said processing apparatus configured to record in real time audio signals of one or more channels output from said
mixer apparatus,

wherein said mixer apparatus is configured to transmit, to said processing apparatus, a command for setting a given parameter,
in response to a snapshot change in the mixer apparatus for collectively changing a state of a set of signal-processing setting
data, said set of signal-processing setting data including a plurality of signal processing parameters, said given parameter
different in type from said plurality of signal processing parameters, and

said processing apparatus is configured to, upon receipt of the command, set the given parameter, instructed by the received
command, into a project that is recording in real time the audio signals of one or more channels.

US Pat. No. 9,331,801

OPERATION PANEL STRUCTURE AND CONTROL METHOD AND CONTROL APPARATUS FOR MIXING SYSTEM

Yamaha Corporation, Hama...

1. A mixing system comprising:
a plurality of input channels including an input channel A and an input channel B;
a plurality of mixing buses for mixing signals from the input channels, the plurality of mixing buses including mixing bus
P and mixing bus Q; and

a plurality of level operators including a level operator X and a level operator Y;
wherein each level operator of the plurality of level operators is associated with a respective mixing bus of the plurality
of mixing buses, and

wherein, for input channel A:
level operator X is configured for
controlling a send level to its respective mixing bus P from input channel A and
adjusting an output level of its respective mixing bus P, and
level operator Y is configured for
controlling a send level to its respective mixing bus Q from input channel A and
adjusting an output level of its respective mixing bus Q, and
wherein, for input channel B:
level operator X is configured for
controlling a send level to its respective mixing bus P from input channel B and
adjusting an output level of its respective mixing bus P, and
level operator Y is configured for
controlling a send level to its respective mixing bus Q from input channel B and
adjusting an output level of its respective mixing bus Q.

US Pat. No. 9,319,016

LEVEL ADJUSTMENT DEVICE

Yamaha Corporation, Hama...

1. A method for attenuating an audio signal comprising:
entering a first operation mode;
determining that a first level adjustment value of a level adjustment parameter is within a range of a first switching point,
the level adjustment parameter associated with a gain control controlling a gain level of the input channel for the audio
signal, the input channel comprising a switchable attenuation pad and an amplifier;

in response to said determining,
transitioning a state of the switchable attenuation pad and
determining a second switching point, wherein the second switching point is based on the state of the switchable attenuation
pad after said transitioning, wherein the state of the switchable attenuation pad transitions when the level adjustment parameter
has a level adjustment value that reaches or crosses the second switching point, and wherein the separation between the first
level adjustment value and the second switching point is greater than the separation between the first level adjustment value
and the first switching point;

applying a variable gain level to the amplifier based on the level adjustment parameter and the state of the switchable attenuation
pad; and

entering a second operation mode, wherein the state of the switchable attenuation pad transitions during the second operation
mode when the level adjustment parameter has a level adjustment value that reaches or crosses a second operation mode switching
point.

US Pat. No. 9,449,083

PERFORMANCE DATA SEARCH USING A QUERY INDICATIVE OF A TONE GENERATION PATTERN

Yamaha Corporation, Hama...

1. An apparatus for searching through a non-transitory first storage medium for searched-out result part performance data
matching an input search query, the first storage medium storing therein a plurality of performance data sets each comprising
part performance data of one or more performance parts, each of the one or more performance parts being associated with one
performance part from among a plurality of different candidate performance parts of an ensemble, said apparatus configured
to communicate with an input device providing a plurality of individually user-operable input regions, said apparatus comprising:
a non-transitory processor-readable second storage medium configured to store instructions; and
a processor, when executing the instructions, configured to:
identify at least one of the different candidate performance parts as a search-object performance part by referencing a correspondence
relationship table in accordance with one or more of the user-operable input regions that has been operated on the input device,
the correspondence relationship table storing therein correspondence relationship between individual ones of the different
candidate performance parts and individual ones of the plurality of user-operable input regions of the input device;

acquire a searching query pattern from the input search query as a search-object query pattern; and
search the first storage medium, on the basis of both the search-object performance part and the search-object query pattern,
for the searched-out result part performance data matching the input search query, wherein the searched-out result part performance
data matches the identified performance part and matches the acquired searching query pattern.

US Pat. No. 9,356,572

SOUND PROCESSING APPARATUS, SOUND SYSTEM AND SOUND PROCESSING METHOD

Yamaha Corporation, Hama...

1. A sound processing apparatus which processes a first sound signal and a second sound signal, the sound processing apparatus
comprising:
a first adjustor which adjusts a volume of the first sound signal;
a second adjustor which adjusts a volume of the second sound signal; and
a control unit which causes the first adjustor and the second adjustor to adjust the first sound signal gradually changed
over a first gradually-change time period and the second sound signal gradually changed over a second gradually-change time
period, wherein the second gradually-change time period is shorter than and included in the first gradually-change time period.

US Pat. No. 9,106,988

ELECTROACOUSTIC TRANSDUCER

Yamaha Corporation, Hama...

1. An electroacoustic transducer, comprising:
a diaphragm comprising: a wing-pair portion comprising a pair of convex surfaces comprising respectively convex surfaces of
a pair of longitudinal split tubular members, a valley being formed between one side portions of the pair of convex surfaces;
and a cone portion surrounding an outer peripheral portion of the wing-pair portion and extending in a conical shape;

a converter configured to convert between a vibration of the diaphragm in a depth direction of the valley and an electric
signal corresponding to the vibration; and

a supporter supporting an outer peripheral portion of the cone portion of the diaphragm so as to allow the diaphragm to vibrate
in a direction of the vibration.

US Pat. No. 9,489,938

SOUND SYNTHESIS METHOD AND SOUND SYNTHESIS APPARATUS

Yamaha Corporation, Hama...

1. A sound synthesis method using an apparatus connected to a display device, the sound synthesis method comprising:
a first step of displaying a plurality of lyrics on a screen of the display device;
a second step of selecting a lyric among the plurality of the lyrics displayed on the screen in response to an operation of
a selecting member after the first step is completed, the lyric including a plurality of sections;

a third step of inputting a pitch based on an operation of a user;
a fourth step of selecting one section among the plurality of sections of the lyric in response to an operation of the selecting
member;

a fifth step of converting the selected section into a piece of a synthetic singing sound data with the inputted pitch; and
a sixth step of generating a whole of the synthetic singing sound data representing the displayed lyric by conducting the
fifth step with respect to another section of the lyric in an arrangement order of the plurality of sections of the lyric
every time the pitch is inputted.

US Pat. No. 9,355,628

VOICE ANALYSIS METHOD AND DEVICE, VOICE SYNTHESIS METHOD AND DEVICE, AND MEDIUM STORING VOICE ANALYSIS PROGRAM

Yamaha Corporation, Hama...

1. A voice analysis method, comprising:
generating a time series of a relative pitch Prel,
wherein the relative pitch Prel is a difference between a pitch Ptrack generated from music track data, which continuously
fluctuates on a time axis, and a pitch Pref of a reference voice,

wherein the music track data designate respective notes of a music track in time series,
wherein the reference voice is a voice of a singing of the music track, and
wherein, when the reference voice includes a voiceless section and when no pitch is detected from the voiceless section, the
pitch Pref of the reference voice is set by an interpolation processing for the voiceless section; and

generating singing characteristics data that define a model for expressing the generated time series of the relative pitch
Prel.

US Pat. No. 9,323,240

REMOTE CONTROL SYSTEM AND METHOD

Yamaha Corporation, Hama...

1. A system comprising a plurality of control devices and at least one controlled device connected to each other via a communication
network,
the controlled device comprising a first memory adapted to store a parameter for controlling an operation of the controlled
device, the controlled device configured to change a value of the parameter stored in the first memory based on a change command
transmitted from any one of the control devices,

each of the plurality of control devices comprising a second memory adapted to store a parameter corresponding to the parameter
stored in the first memory of the controlled device, each of the plurality of control devices configured to change a value
of the parameter stored in the second memory in response to a user's operation and transmit the change command corresponding
to the change in the value of the parameter to the controlled device,

wherein the controlled device further comprises a change notification transmitting unit adapted to, in response to reception
of the change command from any one of the control devices, transmit a change notification to the plurality of control devices,
the change notification including first data indicative of the one of the control devices as a transmission source of the
change command and second data indicative of a value of the parameter stored in the first memory which is changed based on
the change command, and

wherein each of the plurality of control devices further comprises a change notification receiving unit adapted to, in response
to reception of the change notification from the controlled device, update the value of the parameter stored in the second
memory based on the second data of the received change notification when the first data included in the received change notification
does not indicate the control device, whereas the change notification receiving unit does not update the value of the parameter
stored in the second memory when the first data indicates the control device.

US Pat. No. 9,473,252

MODULATION APPARATUS, DEMODULATION APPARATUS, AUDIO TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD

YAMAHA CORPORATION, Hama...

1. A demodulation apparatus comprising:
a separation unit configured to use a frame corresponding to one unit of transmission data and having a transmission start
timing delayed by a predetermined time period to separate an audio signal of sound emitted according to a modulated signal
generated by modulating a carrier wave in a frequency band that is different depending on the transmission start timing into
signal components belonging to the respective frequency bands; and

a frame generation unit configured to demodulate a block forming a part of the frame based on a part of the signal component
separated by the separation unit, select and demodulate a block forming a remaining part of the frame according to a prescribed
selection-procedure, and connect the demodulated blocks to generate the frame,

wherein the prescribed selection procedure includes a plurality of different procedures relating to a block selection, and
wherein in a case where an error in demodulating an entirety of the frame in one of the plurality of procedures occurs, the
frame generation unit performs a subsequent procedure among the plurality of different procedures.

US Pat. No. 9,378,719

TECHNIQUE FOR ANALYZING RHYTHM STRUCTURE OF MUSIC AUDIO DATA

Yamaha Corporation, Hama...

1. An apparatus for analyzing a rhythm structure of a music audio data set, comprising:
a beat position acquisition section configured to acquire beat position information indicating individual estimated beat positions
of the music audio data set to be analyzed;

a division section configured to:
divide the music audio data set into a plurality of first possible pattern segments on the basis of provisional beat positions
coinciding with the beat positions indicated by the acquired beat position information, each of the plurality of first possible
pattern segments constituted by a number of the provisional beat positions, and provide a plurality of sets of first possible
pattern segments by dividing the music audio data set in accordance with first individual division models of a plurality of
division models so that a first beat position of each of the first possible pattern segments is shifted with respect to each
other;

divide the music audio data set into a plurality of second possible pattern segments on the basis of beat positions indicated
by the beat position information equal in number to an integral multiple of the number of the provisional beat positions constituting
the first possible pattern segments, and also provide a plurality of sets of second possible pattern segments by dividing
the music audio data set in accordance with second individual division models of the plurality of division models so that
a first beat position of each of the second possible pattern segments is shifted with respect to each other; and

divide the music audio data set into a plurality of third possible pattern segments on the basis of beat positions indicated
by the beat position information equal in number to an integral submultiple of the number of the provisional beat positions
constituting the first possible pattern segments, and also provide a plurality of sets of third possible pattern segments
by dividing the music audio data set in accordance with third individual division models of the plurality of division models
so that a first beat position of each of the third possible pattern segments is shifted with respect to each other;

a reference performance pattern acquisition section configured to acquire a plurality of reference performance patterns;
a matching section configured to make comparisons between individual possible pattern segments with individual reference performance
patterns for each of the sets of first, second, and third possible pattern segments and, on the basis of each comparison,
determine, for each of the possible pattern segments of the set, at least one respective reference performance pattern that
matches the possible pattern segment;

a selection section configured to identify at least one combination of reference performance patterns on the basis of the
at least one respective reference performance pattern determined by said matching section for each of the possible pattern
segments, wherein each of the possible pattern segments within each of the sets of first, second, and third possible pattern
segments is associated with one respective reference performance pattern, and the selection section further configured to
select one optimal combination of reference performance patterns from among the at least one combination of reference performance
patterns identified for the sets of first, second, and third possible pattern segments; and

a beat position correction section configured to correct the beat positions in response to the selection of the one optimal
combination of reference performance patterns by the selection section, wherein the beat positions are indicated by the beat
position information acquired by said beat position acquisition section, and

wherein said beat position correction section is configured to correct the beat positions if the one optimal combination of
reference performance patterns selected by said selection section is a combination related to the second or third possible
pattern segments.

US Pat. No. 9,326,083

AUDIO SIGNAL PROCESSING SYSTEM

Yamaha Corporation, Hama...

1. An audio signal processing system for recording a sound inputted into one of a plurality of channels of a mixer which receives
a plurality of audio signals, processes the audio signals in the plurality of channels and outputs the processed signals,
and reproducing the recorded sound for adjusting parameters of the mixer, comprising:
a record instructor that instructs to record;
a reproduction instructor that instructs to reproduce;
a channel selector that selects a channel among the plurality of channels as a target;
a recorder that, when the channel selector selects a first arbitrary channel among the plurality of channels while the record
instructor is instructing to record, records an audio signal inputted to the selected first arbitrary channel of the mixer
with relation information indicating the selected first arbitrary channel; and

a reproducer that, when the channel selector selects a second arbitrary channel among the plurality of channels while the
reproduction instructor is instructing to reproduce, reproduces an audio signal which has been stored with relation information
indicating the selected second arbitrary channel, and sends the reproduced audio signal to the selected second arbitrary channel
of the mixer.

US Pat. No. 9,472,176

PERFORMANCE RECORDING SYSTEM, PERFORMANCE RECORDING METHOD, AND MUSICAL INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A musical instrument comprising:
an operation section configured to accept a playing operation;
a generation section configured to generate performance information representative of the accepted playing operation;
a detection section configured to detect a connection of a portable terminal to the detection section; and
a control section configured to start, in response to detection of the connection of the portable terminal to the detection
section, processing of recording at least one of the performance information generated by the generation section and a video
obtained by shooting a scene where the playing operation is performed, into at least one of the musical instrument and the
portable terminal.

US Pat. No. 9,384,717

TONE GENERATION ASSIGNING APPARATUS AND METHOD

YAMAHA CORPORATION, Hama...

1. A tone generation assigning apparatus comprising:
a reception section configured to receive one or more tone generation instructions designating one or more tone pitches; and
a plurality of assigners each configured to assign a tone color to the one or more tone pitches designated by the one or more
tone generation instructions received by said reception section,

each of said plurality of assigners configured to determine whether the one or more tone pitches designated by the one or
more tone generation instructions received by said reception section include one or more target tone pitches to which the
tone color is to be assigned by the respective assigner and to select, from among the one or more tone pitches designated
by the one or more tone generation instructions received by said reception section, the one or more target tone pitches to
which the tone color is to be assigned by the respective assigner, and

each of said plurality of assigners configured to determine, on the basis of a priority order set for the respective assigner,
from among the selected one or more target tone pitches, one or more tone pitches of which tones are to be generated with
the tone color assigned by the respective assigner.

US Pat. No. 9,380,612

COMMUNICATION TERMINAL, WIRELESS DEVICE, PROVIDER SERVER, AND WIRELESS COMMUNICATION SYSTEM

Yamaha Corporation, Hama...

2. A communication terminal comprising:
a wireless communication unit;
an acquisition unit configured to acquire a sound signal representing a sound wave;
an extraction unit configured to extract information from the sound signal acquired by the acquisition unit, wherein the information
defines establishment information used for establishing a wireless communication channel between the communication terminal
and a wireless device; and

a communication control unit configured to:
transmit the establishment information that is defined by the information extracted by the extraction unit through the wireless
communication to establish the wireless communication channel; and

control the wireless communication unit to conduct a communication through the established wireless communication channel,
wherein the wireless communication unit communicates with a provider server that is configured to provide the establishment
information through a wireless communication network,

wherein the communication control unit requests the provider server to transmit the establishment information defined by the
extracted information to the communication terminal through the wireless communication unit, and

wherein, upon receiving the establishment information provided by the provider server through the wireless communication unit
in response to the request, the communication control unit establishes the wireless communication channel with use of the
received establishment information.

US Pat. No. 9,357,303

SPEAKER APPARATUS

Yamaha Corporation, Hama...

1. A speaker apparatus comprising:
a speaker operable to emit a sound;
a receiver operable to receive an operation signal for operating an external apparatus;
a relay section;
a storage operable to store correspondence between operation information and operation signals that includes a first operation
signal and a second operation signal; and

a controller configured to:
operate the speaker apparatus in accordance with operation information that corresponds to the first and second operation
signals;

refer to the storage and determine whether the operation signal received by the receiver is the first operation signal or
the second operational signal;

when the operation signal received by the receiver is determined to be the first operation signal, cause the relay section
to transmit the operation signal received by the receiver to the external apparatus; and

when the operation signal received by the receiver is determined to be the second operation signal, prevent the relay section
from transmitting the operation signal received by the receiver to the external apparatus.

US Pat. No. 9,351,074

AUDIO SYSTEM AND AUDIO CHARACTERISTIC CONTROL DEVICE

Yamaha Corporation, Hama...

1. An audio system comprising:
plural speakers; and
a controller configured to supply audio signals to the plural speakers respectively,
wherein the plural speakers include a planar speaker configured to emit a plane wave on the basis of a respective audio signal
of the supplied audio signals and a speaker configured to emit a non-plane wave on the basis of another respective audio signal
of the supplied audio signals; and

wherein the controller is configured to set signal levels of the audio signals to be supplied to the planar speaker and the
speaker configured to emit a non-plane wave in accordance with a control signal specifying a perceived distance of sound to
be heard by a listener such that the signal level of the audio signal supplied to the planar speaker becomes larger, as the
perceived distance of sound heard by the listener is closer.

US Pat. No. 9,325,439

AUDIO SIGNAL PROCESSING DEVICE

Yamaha Corporation, Hama...

1. An audio signal processing device comprising:
a plurality of input channels for inputting audio signals;
a mixing bus for mixing the inputted audio signals into a mixed audio signal;
an output channel for receiving the mixed audio signal onto a first signal path as an output channel audio signal, the output
channel comprising:

a first level adjustment module for performing signal processing on audio signals on the first signal path and
a first ON/OFF control module for performing signal processing on audio signals on the first signal path,
wherein each of a plurality of output points is respectively provided before or after a signal processing module on the first
signal path in the output channel;

a direct output module for receiving the output channel audio signal onto a second signal path as a direct output module audio
signal, the direct output module comprising:

a selector for selecting one of the plurality of output points, wherein the output channel audio signal is supplied as the
direct output module audio signal to the second signal path at the selected output point,

a second level adjustment module for performing signal processing on audio signals on the second signal path, wherein the
signal processing of the second level adjustment module is the same as the signal processing of the first level adjustment
module,

a second ON/OFF control module for performing signal processing on audio signals on the second signal path, wherein the signal
processing of the second ON/OFF control module is the same as the signal processing of the first ON/OFF control module, and

a switch, for the second level adjustment module, for switching whether or not signal processing of the second level adjustment
module is performed on the direct output module audio signal,

a switch, for the second ON/OFF control module, for switching whether or not signal processing of the second ON/OFF control
module is performed on the direct output module audio signal; and

an output device for outputting the direct output module audio signal from the direct output module.

US Pat. No. 9,311,904

WOODWIND INSTRUMENT AND AIRFLOW ADJUSTER

Yamaha Corporation, Hama...

1. A woodwind instrument comprising:
a tube having a plurality of tone holes; and
an airflow adjuster statically disposed in a selected tone hole of the plurality of the tone holes,
wherein the airflow adjuster is a film member bent at a plurality of positions.

US Pat. No. 9,286,880

MASKING SOUND OUTPUTTING DEVICE AND MASKING SOUND OUTPUTTING METHOD

YAMAHA CORPORATION, Hama...

1. A masking sound outputting device comprising:
a sound inputting device having an A/D converter that receives a picked-up sound signal corresponding to a picked-up sound;
a sound outputting device having a D/A converter that outputs a masking sound;
a memory storing a plurality of masking sounds and a correspondence table indicating correspondence relationships between
an acoustic feature amount and the plurality of masking sounds;

at least one processor configured to execute:
an extracting task that extracts an acoustic feature amount from the picked-up sound signal;
an instruction receiving task that receives an instruction for starting an output of a masking sound; and
a masking sound selecting task that, when the instruction receiving task receives the instruction for starting an output,
selects a masking sound, among a plurality of masking sounds corresponding to the acoustic feature amount extracted by the
extracting task, based on the correspondence table, and outputs the selected masking sound to the sound outputting device,

wherein the masking sound selecting task randomly selects the masking sound, among the plurality of masking sounds corresponding
in the correspondence table, to change the masking sound output to the sound outputting device.

US Pat. No. 9,241,211

TUBULAR BODY, BASS REFLEX PORT, AND ACOUSTIC APPARATUS

Yamaha Corporation, Hama...

1. A tubular body having an air flow passage therein,
wherein an area of a perpendicular cross section of a space enclosed with an inner wall of the tubular body increases toward
an open end of the tubular body, the perpendicular cross section being a cross section of the space in a direction perpendicular
to a tube axis of the tubular body,

wherein, when the inner wall in a cross section of an end portion of the tubular body in the direction perpendicular to the
tube axis is viewed from the tube axis, a convex portion at which the inner wall protrudes in a direction away from the tube
axis and a concave portion at which the inner wall is recessed in a direction toward the tube axis are repeatedly formed along
a circumferential direction of the inner wall, and

wherein, in each of the convex portion and the concave portion, a curvature of the inner wall of the tubular body near the
open end is increased and decreased along the circumferential direction of the inner wall.

US Pat. No. 9,472,175

DRUM HEAD AND DRUM

YAMAHA CORPORATION, Hama...

1. An apparatus, comprising:
a drum head comprising a skin, the skin comprising an inner skin and an outer skin formed integrally with an outer edge of
the inner skin,

wherein the inner skin comprises a plurality of openings arranged in a circumferential direction of the inner skin, and
wherein an outline of each of the plurality of openings comprises an inner end portion in a radial direction of the skin in
plan view, and the inner end portion protrudes and tapers inward in the radial direction.

US Pat. No. 9,351,286

WIRELESS AUDIO TRANSMISSION METHOD

Yamaha Corporation, Hama...

1. A wireless audio transmission method for transmitting audio packets through first wireless communication between a transmitter
and a receiver using a plurality of channels shared with second wireless communication, the wireless audio transmission method
comprising:
(step 1) by the transmitter and the receiver, selecting one channel;
(step 2) by the transmitter, performing carrier sense for the selected channel and detecting that the selected channel has
become idle, and then;

(step 3) by the transmitter, standing by for only a first stand-by time shorter than a shortest packet space stipulated in
a specification of the second wireless communication, and transmitting an audio packet;

(step 4) by the receiver, after completing reception of the audio packet, standing by for only a second stand-by time shorter
than the shortest packet space, and transmitting a response signal;

(step 5) after receiving the response signal by the transmitter, when transmission/reception of a predetermined number of
audio packets is not completed, returning to the step 3 to transmit a next audio packet; and

(step 6) when the transmission/reception of the predetermined number of audio packets is completed, by the transmitter and
the receiver, switching the selected channel and selecting another channel, and returning to the step 2;

wherein the predetermined number for each assigned channel is further determined at the step 1 based on the usage state of
each of the channels.

US Pat. No. 9,336,765

PICKUP DEVICE

YAMAHA CORPORATION, Hama...

1. A pickup device comprising:
a speed detector configured to detect a speed of vibration of a soundboard of an acoustic musical instrument; and
a signal generator configured to generate an audio signal from the speed detected by the speed detector and to output the
audio signal,

wherein the speed detector includes:
an acceleration sensor configured to detect an acceleration of the vibration of the soundboard of the acoustic musical instrument
and output a first component of the acceleration, a second component of the acceleration, and a third component of the acceleration;

an adder configured to add the first component of the acceleration, the second component of the acceleration, and the third
component of the acceleration and to output an addition signal indicating the result of the addition; and

an integrator configured to integrate the addition signal.

US Pat. No. 9,460,203

SOUND PROCESSING APPARATUS

YAMAHA CORPORATION, Hama...

1. A terminal apparatus that communicates with a sound processing apparatus via a network, the terminal apparatus comprising:
a storage device that stores audio data;
an input device;
a control device, including a processor, configured to execute:
a displaying task that displays on a screen of the terminal apparatus, an operator that variably indicates either a proxy
mode or a self-processing mode, the operator being manipulable by a user using the input device to alternate displaying between
the proxy mode and the self-processing mode;

a setting task that sets:
the proxy mode in a case where the proxy mode is selected to be displayed by the user using the input device; and
the self-processing mode in a case where the self-processing mode is selected to be displayed by the user using the input
device; and

a processing task that:
transmits the audio data stored in the storage device to the sound processing apparatus, which executes a first sound processing
program, in a case the setting task sets the proxy mode; and

executes a second sound processing program to process the audio data in a case where the setting task sets the self-processing
mode.

US Pat. No. 9,330,650

SOUND MASKING DEVICE AND SOUND MASKING METHOD

YAMAHA CORPORATION, Hama...

1. A sound masking device comprising:
a sound pick-up unit configured to pick up a sound, and produce a picked-up sound signal based on the sound;
a masking sound signal producing unit configured to produce a masking sound signal from the picked-up sound signal, the masking
sound signal causing the sound picked up by the sound pick-up unit to be hardly hearable by a third person;

a sound emitting unit configured to emit a masking sound based on the masking sound signal; and
an echo cancelling unit configured to perform an echo cancelling process on the picked-up sound signal by performing an adaptive
filtering process on the masking sound signal and by subtracting the filtered masking sound signal from the picked-up sound
signal,

wherein the produced masking sound signal has a level corresponding to an amplitude level of the picked-up sound signal that
has been subjected to the echo cancelling process.

US Pat. No. 9,275,612

KEYBOARD INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A keyboard instrument comprising:
an instrument body having a front face and at least one sound emitting opening disposed in the front face;
a keyboard extending horizontally;
at least one speaker; and
at least one acoustic pipe configured to collect a sound emitted from the at least one speaker and guide the sound to the
at least one sound emitting opening,

wherein the at least one acoustic pipe includes:
a vertical portion extending vertically from a rear of the keyboard, with a lower end thereof positioned below the keyboard
and an upper end thereof positioned above the keyboard; and

a first horizontal portion extending from the upper end of the vertical portion,
wherein the vertical portion is configured to guide the sound emitting from the at least one speaker to the first horizontal
portion, and

wherein the first horizontal portion is configured to guide the sound to the at least one sound emitting opening.

US Pat. No. 9,376,845

HINGE DEVICE AND HOUSING

Yamaha Corporation, Hama...

1. A hinge device that supports a first member and a second member so as to allow the first and second members to be rotatable,
the hinge device comprising:
a first guide groove and a second guide groove formed on the first member;
a first pin provided on the second member and is slidably engaged with the first guide groove; and
a second pin provided on the second member and is slidably engaged with the second guide groove, wherein
the first guide groove and the second guide groove respectively include a first linear groove portion and a second linear
groove portion substantially parallel to each other in a first direction,

the first guide groove includes a first end portion being continuous from the first linear groove portion and extending in
a second direction relative to the first direction, wherein the first pin rotatably comes into contact with the first end
portion, and

the second guide groove includes a second end portion being continuous from the second linear groove portion and extending
substantially parallel to the second direction, wherein the second end portion includes a movement space in which the second
pin rotates about the first pin disposed at the first end portion of the first guide groove, and

the first and second linear groove portions having respective longitudal axes that gradually approach toward each other from
a side corresponding to the first and second end portions.

US Pat. No. 9,355,634

VOICE SYNTHESIS DEVICE, VOICE SYNTHESIS METHOD, AND RECORDING MEDIUM HAVING A VOICE SYNTHESIS PROGRAM STORED THEREON

Yamaha Corporation, Hama...

1. A voice synthesis device, comprising:
a processor for executing a program, stored in storage, to cause the processor to be configured, the processor configured
to:

generate sequence data SeqDi including a plurality Pkp of kinds of parameters for controlling vocalization of a voice to be
synthesized based on music information and lyrics information;

a sound system configured to output a singing voice SVi based on the sequence data SeqDi;
wherein the processor is configured to:
acquire a plurality Ppci of pieces of processing content information in response to single piece SMI1 of singing manner information specified by a user, the plurality Ppci associated with the single piece SMI1 among a plurality Ppsmi of pieces of preset singing manner information,

wherein each piece PCIx of the plurality Ppci of pieces of processing content information indicates respective contents Cepx
of edit processing for all or part of the plurality Pkp of kinds of parameters,

generate a plurality Ppsd of pieces of sequence data based on the acquired plurality Ppci of pieces of processing content
information,

wherein each piece SeqDpx of the plurality Ppsd of pieces of sequence data is generated by editing, based on a respective
piece PCIx, all or part of the plurality Pkp of kinds of parameters included in the sequence data SeqDi according to respective
contents Cepx,

such that the plurality Ppsd of pieces of sequence data are generated based on the plurality Ppci of pieces of processing
content information acquired in response to the single piece SMI of singing manner information, which is specified by the
user, among the plurality Ppsmi of pieces of preset singing manner information.

US Pat. No. 9,311,905

INSTALLATION STRUCTURE FOR ACOUSTIC TRANSDUCER AND MUSICAL INSTRUMENT

Yamaha Corporation, Hama...

1. An installation structure for an acoustic transducer configured to vibrate a vibrated body of a musical instrument in a
first direction so as to permit the vibrated body to generate sounds, comprising:
the acoustic transducer having a main body and a vibrating portion configured to vibrate in the first direction with respect
to the main body;

a support portion to be fixed to a housing of the musical instrument so as to support the main body of the acoustic transducer;
and

a cover member fixed to the support portion so as to cover the acoustic transducer,
wherein the support portion includes a base plate portion to be held in surface contact with the housing so as to be fixed
thereto, a first fixing portion to which the main body of the acoustic transducer is fixed and which is configured to support
the main body, and a second fixing portion to which the cover member is fixed, and

wherein the first fixing portion and the second fixing portion are connected to the base plate portion independently of each
other.

US Pat. No. 9,304,734

MUSIC SYSTEM CONTROL METHOD

Yamaha Corporation, Hama...

1. A music system control method for controlling a plurality of devices and a plurality of music software processes connected
one another via a network so as to make some of the devices and some of the music software processes operate as one music
system of a plurality of music systems operating on the network, comprising:
a first step of receiving heartbeat signals regularly transmitted from each of the plurality of devices and the plurality
of music software processes by broadcast or multicast, each heartbeat signal including a unique identifier of a corresponding
device or a music software process, identification information of a music system of the plurality of music systems to which
each of the plurality of devices or the plurality of music software processes which sent the heartbeat signals belongs to;

a second step of presenting, based on the heartbeat signals received in the first step, each of the plurality of devices and
the plurality of music software processes which sent the heartbeat signals such that it is possible for a user to differentiate
which of the plurality of devices and the plurality of music software processes belong to any of the plurality of music systems
and which do not belong to any of the plurality of music systems;

a third step of accepting, from a user, selection of a device or music software process among the plurality of devices or
the plurality of music software processes not belonging to any music system presented in the second step, and registering
the selected device or music software process as a device or music software process belonging to the one music system; and

a fourth step of accepting, from a user, operation to the one music system, and controlling the device or music software process
belonging to the one music system according to the accepted operation.

US Pat. No. 9,207,255

SIGNAL PROCESSING DEVICE AND AMPLIFIER

Yamaha Corporation, Hama...

1. A signal processing device, comprising:
an amplifier, a bandwidth of which can be switched; and
a controller which is configured to perform control to operate the amplifier in a wide bandwidth for a constant time after
start of a signal input to the amplifier and then operate the amplifier in a narrow bandwidth thereafter,

wherein the controller is configured to select each of a plurality of sensors as a signal input source for the amplifier,
and to perform control to operate the amplifier in the wide bandwidth in response to start of a signal input from the selected
signal input source.

US Pat. No. 9,406,284

KEYBOARD DEVICE AND KEY UNIT

YAMAHA CORPORATION, Hama...

1. A keyboard device, comprising:
a plurality of key units each comprising a plurality of keys, a plurality of hinges, a common mounting portion which are molded
in one piece, a plurality of the common mounting portions of the plurality of key units being superposed on each other and
secured to a key frame,

wherein the plurality of keys are arranged in a right and left direction and each extends in a front and rear direction,
wherein the common mounting portion is elongated in the right and left direction,
wherein each of the plurality of hinges is provided between the common mounting portion and a rear end of a corresponding
one of the plurality of keys and has a planar plate shape in which a plate surface of each of the plurality of hinges is substantially
horizontal,

wherein the plurality of key units comprise a particular key unit comprising an uppermost common mounting portion of the plurality
of the common mounting portions,

wherein each of at least one of the plurality of hinges of the particular key unit comprises:
a hinge thick portion connected to a rear surface of a corresponding one of the plurality of keys; and
a hinge thin portion connected to a rear surface of the hinge thick portion and connected to a front surface of the uppermost
common mounting portion, the hinge thin portion being less in thickness than the hinge thick portion in an up and down direction,
and

wherein a protrusion protruding outward is provided on at least one of opposite outer ends of the hinge thick portion in the
right and left direction.

US Pat. No. 9,294,833

SOUND COLLECTION DEVICE

YAMAHA CORPORATION, Hama...

1. A sound collection device comprising:
a single integrally-molded body having a plurality of interconnecting parts;
a plurality of unidirectional microphones each fitted on the single integrally-molded body;
a plurality of gain adjustment units configured to adjust gains of sounds collected by the respective plurality of unidirectional
microphones; and

an adder configured to add the gain-adjusted sounds to one another,
wherein the plurality of unidirectional microphones are arranged on one plane on a circle,
wherein each of the plurality of interconnecting parts is disposed between a pair of adjacent unidirectional microphones,
among the plurality of unidirectional microphones, with no other unidirectional microphone disposed between the pair of adjacent
unidirectional microphones,

wherein each of the plurality of unidirectional microphones is disposed so that a maximum sensitivity direction thereof is
directed toward one of the plurality of interconnecting parts and intersects a center of the circle.

US Pat. No. 9,212,895

FLEXIBLE STRAINED SENSOR WITH PROTECTIVE COATING

YAMAHA CORPORATION, Hama...

1. A strain sensor comprising:
a substrate which is flexible along a first axis;
a CNT film which is made of a plurality of CNT fibers aligned in an orientation direction which is transverse to the first
axis and which are formed on a surface of the substrate, the CNT film, and with it the contact between the CNT fibers, being
expanded or compressed along the first axis as the substrate is expanded or compressed along the first axis;

a pair of electrodes which are formed at opposite ends of the CNT film along the first axis; and
a protective coat, made of a water based emulsion containing resin, protecting the CNT film, wherein the protective coat is
placed in contact with at least part of the CNT fibers on the surface of the CNT film but is not impregnated in the CNT film,
and

wherein the plurality of CNT fibers includes a first group of CNT fibers and a second group of CNT fibers, and the second
group of CNT fibers is arranged over the first group of CNT fibers, such that the plurality of CNT fibers forms a two-sided
beam structure, the first group of CNT fibers being located at one side of the beam structure, the second group of CNT fibers
being located at another side of the beam structure, and the sides of the beam structure being opposed to each other in a
direction that is perpendicular to the first axis.

US Pat. No. 9,087,494

MUSICAL INSTRUMENT EQUIPPED WITH A PEDAL, AND METHOD THEREFOR

YAMAHA CORPORATION, (JP)...

1. A musical instrument comprising:
a pedal configured to be displaceable in response to user's operation;
a driven member configured to be displaceable in interlocked relation to displacement of said pedal;
a control member configured to vary in its position relative to a sounding member, in response to displacement of said driven
member, to thereby control the sounding member;

a drive section configured to drive said driven member;
a sensor configured to detect a position of said driven member;
a first database storing therein correspondency relationship between positions of said pedal and positions of said driven
member;

a second database storing therein correspondency relationship between the positions of said pedal and control values; and
a first output section configured to:
acquire, from said first database, a position of said pedal corresponding to a position of said driven member detected by
said sensor;

acquire, from said second database, a control value corresponding to the acquired position of said pedal; and
output the acquired control value as pedal operation information.

US Pat. No. 9,070,370

TECHNIQUE FOR SUPPRESSING PARTICULAR AUDIO COMPONENT

Yamaha Corporation, Hama...

1. An audio processing apparatus for generating, for each of unit segments of an audio signal, a processing coefficient train
having coefficient values set for individual frequencies such that a target component of the audio signal is suppressed, said
audio processing apparatus comprising:
a processor configured to:
generate a basic coefficient train where basic coefficient values corresponding to individual frequencies included within
a particular frequency band range are each set at a suppression value that suppresses the audio signal while basic coefficient
values corresponding to individual frequencies outside the particular frequency band range are each set at a pass value that
maintains the audio signal;

process the generated basic coefficient train in such a manner that, when a sound generation point of any one of frequency
components included within the particular frequency band range is detected, the basic coefficient values corresponding to
a frequency of the one frequency component are each set at the pass value over a predetermined time period from the detected
sound generation point; and

generate the processing coefficient train for each of the unit segments by changing, to the pass value, each of the basic
coefficient values included in the processed basic coefficient train and corresponding to individual frequencies other than
the target component among said basic coefficient values corresponding to the individual frequencies included within the particular
frequency band range.

US Pat. No. 10,111,318

CIRCUIT SUBSTRATE, AND NOISE REDUCTION METHOD FOR CIRCUIT SUBSTRATE

Yamaha Corporation, Hama...

1. A circuit substrate comprising:a core substrate;
a reinforcing dielectric layer that is provided on one surface of the core substrate;
a first electromagnetic band gap structure that is provided on one surface side of the reinforcing dielectric layer and configured to reduce electromagnetic noise in a predetermined first frequency propagating through the core substrate; and
an auxiliary pattern that is formed at a predetermined distance from an outer circumference of a conductive pattern which forms the first electromagnetic band gap structure.

US Pat. No. 9,224,380

AUDIO DEVICE, AND METHODS FOR DESIGNING AND MAKING THE AUDIO DEVICES

Yamaha Corporation, Hama...

12. A method for making a plurality of types of sound absorbing panels each provided with at least one of first and second
Helmholtz resonators, said method comprising:
a step of forming a cavity of each of the Helmholtz resonators individually for each of the types of sound absorbing panels,
a volume of the cavity being same between the first and second Helmholtz resonators; and

a step of forming a neck, communicating with the cavity, of each of the Helmholtz resonators, wherein, whereas a cross-sectional
area of the neck is same between the first and second Helmholtz resonators, a cross-sectional shape of the neck is different
between the first and second Helmholtz resonators,

wherein the cross-sectional shape of the neck of each of the Helmholtz resonators is an elliptical or perfect circular shape,
and wherein an eccentricity e obtained by substituting, into a mathematical expression of e={(MAX2?MIN2)2)1/2}/ MAX, minimum and maximum values of distances between a center of gravity of a cross section of the neck and individual
points defining an outer periphery of the cross section is different between each of the Helmholtz resonators, where MIN denotes
the minimum value and MAX denotes the maximum value.

US Pat. No. 9,155,949

GOLF CLUB MEASURING SYSTEM AND GOLF CLUB MEASURING METHOD

Yamaha Corporation, Hama...

1. A golf club measuring system for dynamically measuring physical qualities of a golf club shaft as it is being swung, comprising:
a sensor wiring substrate in the form of a flexible ribbon that can be helically wound externally about a predetermined length
of the shaft, the sensor wiring substrate having a plurality of wires embedded therein;

a plurality of sensors, each sensor being electrically coupled to a respective set of the wires and sensing the physical qualities
of the shaft as it is swung; and

a storage device electrically coupled to the wires and receiving and storing information about the output of the plurality
of sensors when the sensors are placed at respective positions on the shaft and the shaft is swung so as to allow a determination
of the physical qualities of the shaft to be determined based upon the stored information.

US Pat. No. 9,167,369

SPEAKER ARRAY APPARATUS

Yamaha Corporation, Hama...

1. A speaker array device comprising:
a first speaker array configured to have plural first speaker units arranged in a first surface and output a first sound that
is directed to a particular first direction from the plural first speaker units such that an angle of the first direction
with respect to an arrangement direction of the plural first speaker units is adjustable; and

a second speaker array configured to have plural second speaker units arranged in a second surface that is different from
the first surface and output a second sound that is directed to a particular second direction from the plural second speaker
units such that an angle of the second direction with respect to an arrangement direction of the plural second speaker units
is adjustable,

wherein when the second speaker array is installed together with the first speaker array in a room having a ceiling which
functions as a sound reflection surface, the second speaker array is installed in such a manner that a normal direction to
the second surface is match with a direction in which the second sound emitted from the second speaker array reaches, only
indirectly, through reflection or diffraction, a sound receiving point or a direction in which the second sound reaches the
sound receiving point such that a sound pressure ratio of a sound pressure of the second sound that reaches the sound receiving
point after being reflected by the ceiling to a sound pressure of the second sound that reaches the sound receiving point
directly is larger than or equal to a prescribed value, the sound receiving point being located in a normal direction to the
first surface and being set as a position for listening to the first sound.

US Pat. No. 9,142,202

ELECTRONIC PERCUSSION PAD AND METHOD OF MANUFACTURING ELECTRONIC PERCUSSION PAD

Yamaha Corporation, Hama...

1. An electronic percussion pad comprising:
a pad layer that includes a striking surface on a front surface of the pad layer; and
a holding layer that holds a back surface of the pad layer,
wherein the pad layer is formed of polyurethane foam laminated on a front surface of the holding layer, and at least a surface
of the holding layer on which the polyurethane foam is laminated is formed of metal.

US Pat. No. 9,087,500

NOTE SEQUENCE ANALYSIS APPARATUS

Yamaha Corporation, Hama...

1. A note sequence analysis apparatus comprising:
one or more processors programmed to:
calculate a similarity index based on similarity between a designated sequence of notes designated by a user and a reference
sequence of notes for each of a plurality of reference pieces of music;

select a reference piece of music from among the plurality of reference pieces of music based on the similarity index calculated
for each of the plurality of reference pieces of music;

specify an evaluation index of the designated sequence of notes based on the similarity index calculated for the selected
reference piece of music; and

output the specified evaluation index of the designated sequence of notes to a display.

US Pat. No. 9,286,870

PEDAL DEVICE FOR ELECTRONIC PERCUSSION INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A pedal device for an electronic percussion instrument, the pedal device comprising:
a base placed on a floor surface;
a foot board pivotably supported at one end portion thereof with respect to the base and configured to pivot in a pivotable
range between a lower limit position in a depression direction and an upper limit position in a direction opposite to the
depression direction; and

an elastically holding mechanism configured to elastically support the foot board in an equilibrium state at an initial position
within the pivotable range in a non-operated state in which the foot board is not operated,

a cover member extending upwardly from one end portion of the base and having a ceiling portion;
a stopper formed of a buffer member disposed on an underside of the ceiling portion;
a limit plate extending from an opposite end portion of the foot board that is opposite from the one end portion where the
foot board is pivotably supported and extending downwardly from the foot board and includes an abutting surface configured
to abut the stopper,

wherein the limit plate, including the abutting surface, does not contact the stopper at a standstill state of the foot board
where the foot board is not operated, and

wherein the opposite end portion of the foot board is disposed above the ceiling portion while the abutting surface is disposed
below the ceiling portion when the abutting surface abuts the stopper.

US Pat. No. 9,204,224

ELECTROSTATIC SPEAKER

Yamaha Corporation, Hama...

1. An electrostatic speaker comprising:
a first electrode formed of a sheet-like member, having a first face including a plurality of protrusions and a second face
opposite the first face, and having conductivity and flexibility, the plurality of protrusions each having a through hole
passing through the first face and the second face of the first electrode;

a second electrode formed of a sheet-like member, disposed so as to be opposed to the second face, and having conductivity
and flexibility; and

an oscillator formed of a flexible sheet-like member, and disposed between the first electrode and the second electrode, at
least one face of which has conductivity.

US Pat. No. 9,099,062

KEYBOARD MUSICAL INSTRUMENT, METHOD OF CONTROLLING ACTUATOR IN THE KEYBOARD MUSICAL INSTRUMENT, AND NON-TRANSITORY RECORDING MEDIUM STORING PROGRAM FOR CONTROLLING THE ACTUATOR

YAMAHA CORPORATION, (JP)...

1. A keyboard musical instrument comprising:
a key;
a hammer configured to be driven by a depressing operation of the key;
an actuator configured to drive at least one of the key or the hammer in a movement direction of a key depression stroke;
a key detector configured to detect a key-motion related value that relates to a motion of the key;
a hammer detector configured to detect a hammer-motion related value that relates to a motion of the hammer;
a trajectory generator configured to generate a target trajectory of the at least one of the key or the hammer based on automatic
performance information that defines a motion target value of the at least one of the key or the hammer;

a phase specifier configured to specify a current phase among a plurality of phases in a key depression-release stroke based
on at least the hammer-motion related value in the automatic performance detected by the hammer detector;

a contribution-proportion determiner configured to determine a feedback contribution proportion of each of the detected hammer-motion
related value and the detected key-motion related value in accordance with the current phase specified by the phase specifier;

a feedback-value generator configured to generate a feedback value based on the determined feedback contribution proportion,
the detected hammer-motion related value, and the detected key-motion related value; and

a controller configured to servo-control the actuator based on the target trajectory generated by the trajectory generator
and the feedback value generated by the feedback-value generator.

US Pat. No. 9,082,378

SUPPORTING STRUCTURE FOR ELECTRONIC PAD OF PERCUSSION INSTRUMENT

YAMAHA CORPORATION, (JP)...

3. A supporting structure for an electronic pad of a percussion instrument, the supporting structure comprising:
a pad member configured to be struck;
a support member rotatably supporting the pad member about a rotation center;
a first engaging part arranged independently of the pad member or unified with the pad member;
a second engaging part engaging the first engaging part, and arranged independently of the support member or unified with
the support member, wherein the second engaging part is configured to rotate about the rotation center via the first engaging
part in response to a rotary force applied to the pad member; and

a connecting part that establishes at least one of a connection between the pad member and the first engaging part or a connection
between the support member and the second engaging part,

wherein the connecting part is configured to connect a first object and a second object to relatively rotate about the rotation
center,

wherein the connecting part includes a reaction generator that generates a reactive force against the rotary force by which
the second object disposed at an initial position relative to the first object is displaced from the initial position in a
rotating direction, and

wherein, when the rotary force is released, the connecting part allows the second object to be restored to the initial position
using the reactive force generated by the reaction generator;

a rotation-regulating unit that regulates a rotational displacement of the second object within a predetermined regulation
range when a rotational torque less than a predetermined value is applied to the second object disposed at the initial position
relative to the first object,

wherein, when the rotational torque above the predetermined value is applied to the second object disposed at the initial
position, the rotational displacement of the second object becomes higher than the predetermined regulation range, thus shifting
the regulation range of the rotation-regulating unit, and

wherein, when the rotational torque above the predetermined value is released, the rotation-regulating unit allows the second
object to be restored to a new initial position that is shifted from the initial position.

US Pat. No. 9,386,389

AUDIO SIGNAL PROCESSING DEVICE

YAMAHA CORPORATION, Hama...

15. An audio signal processing device comprising:
an input interface configured to receiving a plurality of audio signals of 5.1 channels;
a first signal generating device configured to mix a left-channel signal and a right-channel signal among the plurality of
audio signals of 5.1 channels and generate a main signal;

a second signal generating device configured to mix the left-channel signal and the right-channel signal and generate a surround
signal;

a first phase-shift processor configured to change a frequency characteristic regarding a phase of the main signal;
a first frequency processor configured to change a frequency characteristic regarding a gain of the surround signal; and
an output interface configured to mix output signals of the first phase-shift processor and the frequency processor and output
a monaural signal,

wherein the frequency processor changes a frequency characteristic regarding a gain while indicating a frequency characteristic
regarding a phase corresponding to a frequency characteristic regarding a phase of the first phase-shift processor.

US Pat. No. 9,489,006

REACTION FORCE GENERATOR

YAMAHA CORPORATION, Hama...

1. A reaction force generator comprising:
a base member mountable directly or indirectly on a supporter supporting an operating member pivotably;
a dome member protruding from the base member; and
a top member integral with the dome member and provided on a protruding-side distal end of the dome member and configured
to be pressed by the operating member toward the base member,

wherein the dome member is configured to be elastically deformed to produce a reaction force when the top member is pressed
by the operating member,

wherein the dome member is configured so that:
a basal-end-side plane and a distal-end-side plane intersect each other at a line of intersection located on a first side
of the dome member nearer to a pivot fulcrum of the operating member, the basal-end-side plane being a plane that includes
a line of intersection between the base member and the dome member and the distal-end-side plane being a plane that includes
a line of intersection between the dome member and the top member; and

when the top member is pressed by the operating member, a rate of an amount of deformation in the first side of the dome member
is generally the same as a rate of an amount of deformation in a second side of the dome member, the first side of the dome
member being nearer to the pivot fulcrum of the operating member than the second side of the dome member.

US Pat. No. 9,130,577

PLL CIRCUIT

Yamaha Corporation, Hama...

1. A PLL (phase locked loop) circuit receiving an external clock which is a sampling clock supplied together with a digital
audio signal from an outside, and generating a generated clock which is a sampling clock in synchronization with the external
clock, comprising:
a first detector for detecting whether or not a phase of the generated clock is in synchronization with a phase of the external
clock;

a measuring device for measuring at least one of a high time from a rise to a fall of the external clock and a low time from
a fall to a rise thereof;

a second detector for detecting:
a fluctuation of the high time greater than or equal to a predetermined level based on a latest value of the high time measured
by the measuring device and one or more values of the high time measured by the measuring device previously, or

a fluctuation of the low time greater than or equal to a predetermined level based on a latest value of the low time measured
by the measuring device and one or more values of the low time measured by the measuring device previously; and

a holding device for fixing, when the second detector detects the fluctuation during a state in which the first detector detects
synchronization of the generated clock and the external clock, a frequency of the generated clock to a first frequency at
a present time point, and continuing output of the generated clock having the first frequency.

US Pat. No. 9,449,586

KEYBOARD DEVICE

Yamaha Corporation, Hama...

1. A keyboard device, comprising:
a plurality of key units each comprising (i) a plurality of white keys or a plurality of black keys and (ii) a coupler elongated
so as to extend in a key arrangement direction in which the plurality of white keys or the plurality of black keys are arranged,
rear ends of the plurality of white keys or the plurality of black keys being coupled to the coupler, the plurality of white
keys or the plurality of black keys and the coupler being coupled in one unit; and

a key frame supporting a plurality of couplers of the plurality of key units, the plurality of couplers being stacked on each
other, the plurality of key units being assembled to the key frame,

the coupler of one key unit of the plurality of key units being provided with a hook extending in an up and down direction,
the hook comprising an engaging portion at an end portion of the hook, the hook being configured to fit within a length of
the coupler of the one key unit,

the plurality of key units comprising at least one other key unit other than the one key unit, the coupler of each of the
at least one other key unit comprising a through hole formed through the coupler in the up and down direction at a position
corresponding to the hook,

the key frame comprising a through hole formed through the key frame in the up and down direction at a position corresponding
to the hook,

the plurality of couplers of the plurality of key units being secured on the key frame using the engaging portion in a state
in which the hook extends through the through hole of the coupler of each of the at least one other key unit and the through
hole of the key frame.

US Pat. No. 9,230,537

VOICE SYNTHESIS APPARATUS USING A PLURALITY OF PHONETIC PIECE DATA

Yamaha Corporation, Hama...

1. An apparatus for synthesizing a voice signal using a plurality of phonetic piece data each indicating a phonetic piece
which contains at least two phoneme sections corresponding to different phonemes, the apparatus comprising;
a voice synthesis processor configured to produce a voice signal for output of a sound wave from a sound output unit, wherein
the voice synthesis processor includes

a phonetic piece adjustment part that forms a target section from a first phonetic piece and a second phonetic piece so as
to connect the first phonetic piece and the second phonetic piece to each other such that the target section is formed of
a rear phoneme section of the first phonetic piece corresponding to a consonant phoneme and a front phoneme section of the
second phonetic piece corresponding to the consonant phoneme, and that carries out an expansion process for expanding the
target section by a target time length to form an adjustment section such that a central part of the target section is expanded
at an expansion rate higher than that of a front part and a rear part of the target section, to thereby create synthesized
phonetic piece data of the adjustment section having the target time length and corresponding to the consonant phoneme; and

a voice synthesis part that creates a voice signal from the synthesized phonetic piece data created by the phonetic piece
adjustment part,

wherein the phonetic piece adjustment part carries out the expansion process in case that the consonant phoneme of the target
section belongs to one type including fricative sound and semivowel sound, and carries out another expansion process in case
that the consonant phoneme of the target section belongs to another type including plosive sound, affricate sound, nasal sound
and liquid sound for inserting an intermediate section between the rear phoneme section of the first phonetic piece and the
front phoneme section of the second phonetic piece in the target section.

US Pat. No. 9,439,018

AUDIO DATA PROCESSING DEVICE AND AUDIO DATA PROCESSING METHOD

Yamaha Corporation, Hama...

1. An audio data processing device comprising:
a first input unit that receives input of first audio data representative of a first sound;
a second input unit that receives input of second audio data representative of a second sound;
a mixing unit that mixes the first audio data and the second audio data to generate mixed audio data;
a first output unit that outputs, to a first speaker, audio data being the first audio data and not having undergone the mixing
by the mixing unit;

a second output unit that outputs, to a second speaker, the mixed audio data generated by the mixing unit;
a processor that is provided between a point of branching to the mixing unit and the first output unit on a transmission path
between the first input unit and the first output unit, or between the mixing unit and the second output unit, and performs
processing of adding an acoustic effect to the audio data; and

a delay unit that is provided between the branching point and the first output unit on the transmission path between the first
input unit and the first output unit, or between the mixing unit and the second output unit, and delays the audio data so
that a relationship of timing between input, to the first speaker, of the audio data output from the first output unit and
input, to the second speaker, of the audio data output from the second output unit coincides with a relationship of timing
of input between the first audio data at the first input unit and the second audio data at the second input unit,

wherein a transmission speed of an audio data transmission path from the second output unit to the second speaker is lower
than a transmission speed of an audio data transmission path from the first output unit to the first speaker, and

the processor is provided between the branching point and the first output unit on the transmission path between the first
input unit and the first output unit.

US Pat. No. 9,564,981

AUDIO MIXING CONSOLE

Yamaha Corporation, Hama...

1. An audio mixing console for performing operation pertaining to signal processing on audio signals of a plurality of channels,
said audio mixing console comprising:
a display device; and
a processor configured to:
receive a display instruction for displaying a pop-up screen on the display device;
ascertain whether or not a plurality of pop-up screens are to be displayed on the display device, each of the plurality of
pop-up screens adapted to simultaneously display pieces of information of one group of a predetermined plurality of the plurality
of channels; and

1) when the plurality of pop-up screens are not displayed on the display device, display only one pop-up screen and a one-pop-up-screen
channel selection switch on the display device, said one-pop-up-screen channel selection switch adapted to select a group
of the predetermined plurality of the plurality of channels whose pieces of information are to be displayed on said one pop-up
screen, and 2) when the plurality of pop-up screens are displayed on the display device, display the plurality of pop-up screens
and a plurality-of-pop-up-screen channel selection switch, said plurality-of-pop-up-screen channel selection switch adapted
to collectively select a predetermined plurality of groups of the predetermined plurality of the plurality of channels whose
pieces of information are to be displayed on the plurality of pop-up screens, said plurality-of-pop-up-screen channel selection
switch adapted to collectively select the predetermined plurality of groups from among a plurality of groups of the predetermined
plurality of the plurality of channels,

wherein said one-pop-up-screen channel selection switch is operable to display, on the display device, channel strip images
representative of channel strips corresponding to the predetermined plurality of the plurality of channels selected through
the operation of the one-pop-up-screen channel selection switch, and

said plurality-of-pop-up-screen channel selection switch is operable to display, on the display device, channel strip images
representative of channel strips corresponding to the predetermined plurality of groups of the predetermined plurality of
the plurality of channels selected through the operation of the plurality-of-pop-up-screen channel selection switch.

US Pat. No. 9,318,126

VOICE CLARIFICATION APPARATUS

YAMAHA CORPORATION, Hama...

1. A voice clarification apparatus comprising:
a microcomputer;
a memory including a program;
a plurality of band-pass filters that respectively extract a plurality of band components, which are included in a voice band,
from an input audio signal to output a plurality of feedforward, extracted band components;

a gain determination unit that determines a gain according to a level of a signal of a band component which is extracted by
a band-pass filter;

a level adjustment unit that adjusts levels of signals of the plurality of feedforward, extracted band components using the
gain; and

a first addition unit that adds a signal which is based on the input audio signal to a signal including the adjusted levels
of signals of the plurality of feedforward, extracted band components and excluding any feedback components of the extracted
band components, and outputs a signal obtained through the addition,

wherein the plurality of band-pass filters, the gain determination unit, the level addition unit, and the first addition unit
are implemented by the microcomputer executing the program.

US Pat. No. 9,245,509

RECORDING AND REPRODUCTION OF WAVEFORM BASED ON SOUND BOARD VIBRATIONS

YAMAHA CORPORATION, Hama...

1. A musical instrument comprising:
a plurality of performance operation keys;
a plurality of sounding members provided in corresponding relation to said plurality of performance operation keys;
a sound board;
a plurality of striking members provided in corresponding relation to said plurality of performance operation keys and each
configured to physically vibrate a corresponding one of the sounding members in response to an operation of the corresponding
one of the performance operation keys;

a plurality of transmission joints provided in corresponding relation to said plurality of sounding members and each disposed
to physically transmit vibrations of a corresponding one of the sounding members to said sound board;

an operation detector configured to detect respective operations of said plurality of performance operation keys;
a vibration waveform device configured to:
detect a vibration waveform corresponding to vibrations of at least one of said sound board or the transmission joints; and
vibrate said sound board in accordance with an input waveform signal;
a controller configured to
control storing of the vibration waveforms detected by said vibration waveform detector, in response to respective operations
of the performance operation keys, in a memory in association with individual ones of the performance operation keys; and

read out, from the memory, the vibration waveform corresponding to the performance operation key whose operation has been
detected by said operation detector and input a waveform signal based on the read-out vibration waveform to said vibration
waveform device to induce physical vibrations to said sound board according to the input waveform signal.

US Pat. No. 9,171,532

SOUND SIGNAL ANALYSIS APPARATUS, SOUND SIGNAL ANALYSIS METHOD AND SOUND SIGNAL ANALYSIS PROGRAM

YAMAHA CORPORATION, (JP)...

1. A sound signal analysis apparatus comprising:
a non-transitory memory device;
a processor;
a sound signal input portion for inputting a sound signal indicative of a musical piece;
a feature value calculation portion for calculating a first feature value indicative of a feature relating to existence of
a beat in one of sections of the musical piece and a second feature value indicative of a feature relating to tempo in one
of the sections of the musical piece; and

an estimation portion for concurrently estimating a beat position and a change in tempo in the musical piece by selecting,
from among a plurality of probability models described as sequences of states classified according to a combination of a physical
quantity relating to existence of a beat in one of the sections of the musical piece and a physical quantity relating to tempo
in one of the sections of the musical piece, a probability model whose sequence of observation likelihoods each indicative
of a probability of concurrent observation of the first feature value and the second feature value in corresponding one of
the sections of the musical piece satisfies a certain criterion,

wherein the sound signal input portion, the feature value calculation portion, and the estimation portion are implemented
at least in part by the processor executing at least one program recorded on the non-transitory memory device.

US Pat. No. 9,398,623

COMMUNICATION TERMINAL, WIRELESS DEVICE, PROVIDER SERVER, AND WIRELESS COMMUNICATION SYSTEM

Yamaha Corporation, Hama...

2. A communication terminal comprising:
a wireless communication unit;
an acquisition unit configured to acquire a sound signal representing a sound wave;
an extraction unit configured to extract information from the sound signal acquired by the acquisition unit, wherein the information
defines establishment information used for establishing a wireless communication channel between the communication terminal
and a wireless device; and

a communication control unit configured to:
transmit the establishment information that is defined by the information extracted by the extraction unit through the wireless
communication to establish the wireless communication channel; and

control the wireless communication unit to conduct a communication through the established wireless communication channel,
wherein the wireless communication unit communicates with a provider server that is configured to provide the establishment
information through a wireless communication network,

wherein the communication control unit requests the provider server to transmit the establishment information defined by the
extracted information to the communication terminal through the wireless communication unit, and

wherein, upon receiving the establishment information provided by the provider server through the wireless communication unit
in response to the request, the communication control unit establishes the wireless communication channel with use of the
received establishment information.

US Pat. No. 9,294,861

AUDIO SIGNAL PROCESSING DEVICE

YAMAHA CORPORATION, Hama...

5. An audio signal processing device comprising:
a generation unit configured to generate n (where n is a natural number equal to or greater than 2) virtual process audio
signals by processing at least one input audio signal so as to localize the input audio signal at a virtual position;

an output unit configured to output the n virtual process audio signals generated by the generation unit to n speakers as
first output signals and to output the n virtual process audio signals generated by the generation unit to a subwoofer as
second output signals;

a hiqh-pass filter configured to attenuate a component of a frequency band lower than a predetermined cutoff frequency of
the first output signals; and

a low-pass filter configured to have the same order as the high-pass filter and to attenuate a component of a frequency band
greater than the predetermined cutoff frequency of the second output signals,

wherein the second output signals are delayed by a predetermined time from a timing of the first output signals.

US Pat. No. 9,368,156

OPERATION DEVICE

Yamaha Corporation, Hama...

1. An operation device comprising:
a channel strip to which is allocatable, as a channel allocation, any one of a plurality of signal processing channels, the
plurality of signal processing channels including a first channel and a second channel;

a first notification user-interface for the channel strip, the first notification user-interface configured to notify channel
indicative information about the signal processing channel allocated to said channel strip;

a second notification user-interface for the channel strip, the second notification user-interface configured to notify parameter
value information about the signal processing channel allocated to said channel strip;

a continuous operation user-interface for the channel strip, the continuous operation user-interface configured to detect
a continuous operation indicating a user's instruction for switching the channel allocation of said channel strip from the
first channel to the second channel;

a processor configured to:
while said continuous operation user-interface is detecting the continuous operation, continuously update the channel indicative
information, notified by said first notification user-interface, in response to detection of the continuous operation, such
that the first notification user-interface indicates progression of a shifting of the first channel to the second channel,
and maintain, without updating, the parameter value information notified by said second notification user-interface, such
that the second notification user-interface indicates parameter value information about the first channel during the continuous
operation; and

upon completion of the continuous operation having been detected by said continuous operation user-interface, update the parameter
value information, notified by said second notification user-interface, in response to the completion of the continuous operation,
such that the second notification user-interface indicates parameter value information about the second channel after the
completion of the continuous operation.

US Pat. No. 9,123,348

SOUND PROCESSING DEVICE

Yamaha Corporation, Hama...

1. A signal processing device for processing a plurality of observed signals at a plurality of frequencies, the plurality
of the observed signals being produced by a plurality of sound receiving devices which receive a mixture of a plurality of
sounds, the signal processing device comprising:
a storage unit that stores observed data of the plurality of the observed signals, the observed data representing a time series
of magnitude of each frequency in each of the plurality of the observed signals;

an index calculation unit that calculates an index value from the observed data for each of the plurality of the frequencies,
the index value indicating significance of learning of a separation matrix using the observed data of each frequency of the
plurality of the frequencies and representing a total number of bases that are axis lines of regions in which observed vectors
obtained from the observed data are distributed, each observed vector including, as elements, respective magnitudes of a corresponding
frequency in the plurality of the observed signals, the separation matrix being used for separation of the plurality of the
sounds;

a frequency selection unit that selects at least one frequency from the plurality of the frequencies according to the index
value of each frequency calculated by the index calculation unit by selecting one or more frequencies at which the total number
of the bases represented by the index value is larger than a total number of bases represented by index values at other frequencies;
and

a learning processing unit that determines the separation matrix by learning with a given initial separation matrix using
the observed data of the frequency selected by the frequency selection unit among the plurality of the observed data stored
in the storage unit.

US Pat. No. 9,674,611

INFORMATION PROCESSOR, AUDIO PROCESSOR, AUDIO PROCESSING SYSTEM, PROGRAM, AND VIDEO GAME PROGRAM

YAMAHA CORPORATION, Hama...

1. An information processor configured to be connected to an audio processor through a plurality of channels in parallel,
the information processor comprising:
a generator that is configured to generate original sound data indicating an original sound as a basis for a processed sound
to be heard by a user and a parameter indicating a content of processing on the original sound data;

an original sound data output section that is configured to output the original sound data generated by the generator from
some channels of the plurality of channels; and

a control signal output section that is configured to output a control signal in parallel with the original sound data from
a channel of the plurality of channels other than the channels from which the original sound data is output, the control signal
including the parameter indicating the content of processing on the original sound data and a correspondence relationship
between the parameter and at least one of the channels from which the original sound data to be processed by way of the parameter
is output; and

a video game progressing section that is configured to progress a video game,
wherein the generator is configured to generate the original sound data according to a progress of the video game progressed
by the video game progressing section and the parameter for the original sound data, and

wherein the information processor and the audio processor are separate and discrete units.

US Pat. No. 9,286,906

VOICE PROCESSING APPARATUS

Yamaha Corporation, Hama...

1. A voice processing apparatus comprising one or more of processors configured to:
adjust, in the time domain, a fundamental frequency of a first voice signal corresponding to a voice having target voice characteristics
to a fundamental frequency of a second voice signal corresponding to a voice having initial voice characteristics different
from the target voice characteristics; and

sequentially generate a processed spectrum based on a spectrum of the first voice signal and a spectrum of the second voice
signal by:

dividing the spectrum of the first voice signal into a plurality of harmonic band components after the fundamental frequency
of the first voice signal has been adjusted to the fundamental frequency of the second voice signal;

allocating each harmonic band component obtained by dividing the spectrum of the first voice signal to each harmonic frequency
associated with the fundamental frequency of the second voice signal; and

adjusting an envelope and phase of each harmonic band component according to an envelope and phase of the spectrum of the
second voice signal.

US Pat. No. 9,813,753

CORE DEVICE, AUDIO/VIDEO CONTROL SYSTEM, PORTABLE TERMINAL DEVICE, AUDIO/VIDEO CONTROL PROGRAM, AND AUDIO/VIDEO CONTROL METHOD

Yamaha Corporation, Hama...

1. An audio/video control system comprising:
a plurality of audio/video devices that include a core device and a first device different from the core device, the core
device and the first device being interconnected by a digital audio/video interface, both of the core device and the first
device being connected to a network without using the digital audio/video interface, the digital audio/video interface and
the network being different from each other; and

a portable terminal device that is connected to the network,
wherein the core device includes a first processor for executing stored instructions to:
collect interface-connected device information of at least the first device from at least the first device via the digital
audio/video interface, the interface-connected device information including at least unique identification information;

generate a connection device table using the collected interface-connected device information; and
transfer the connection device table to the portable terminal device; and
the portable terminal device includes a second processor for executing stored instructions to:
search the network and acquires network-compatible device information including network addresses and unique identification
information of devices on the network;

generate a network compatible device table using the acquired network compatible device information;
directly communicate with the core device via the network without using the first device to acquire, from the core device,
the interface-connected device information of at least the first device;

compare and associate the network-compatible device information included in the network compatible device table and the interface-connected
device information included in the connection device table to resolve a network address of at least the first device;

display an optional screen that accepts an operation by a user on the portable terminal device; and
directly transmit, to the first device, a control command for controlling the first device via the network using the resolved
network address of the first device without the control command passing through the core device.

US Pat. No. 9,508,324

SOUNDBOARD ACOUSTIC TRANSDUCER

YAMAHA CORPORATION, Hama...

1. A soundboard acoustic transducer, comprising:
a main body; and
a vibrator configured to vibrate a soundboard in response to a sound signal input thereto,
wherein the main body is supported by a member different from the soundboard, via a fixture formed by a metal plate,
wherein the fixture is configured to vibrate in a perpendicular direction with respect to a plate surface thereof in a frequency
range at least from 4 kHz to 15 kHz,

wherein the fixture has a first plate portion fixed to the main body and a second flat plate portion fixed to the member,
wherein the first flat plate portion has at least one extending portion that is supported by the first flat plate portion
and that extends in a substantially perpendicular direction with respect to the first flat plate portion, and

wherein each of the at least one extending portion is provided so as to be spaced apart from the second flat plate portion.

US Pat. No. 9,369,945

WIRELESS NETWORK SYSTEM AND WIRELESS COMMUNICATION METHOD FOR SWITCHING A WIRELESS NETWORK MODE

Yamaha Corporation, Hama...

1. A wireless network system comprising:
an access point for relaying communications in a wireless network mode;
a user device; and
a client for communicating with the wireless network mode through the access point, wherein:
the user device comprises:
a storage section which stores network information for setting the wireless network mode, wherein the network information
comprises a first network name and an encryption key; and

a first hardware processor that is configured to:
automatically monitor and detect a second network name from the client for setting the wireless network in a second mode while
the user device is connecting in the wireless network in the first mode through the access point;

switch a wireless network mode of the user device from the first mode to the second mode for communicating with the client
when the first hardware processor has detected the second network name, and

transmit the network information to the client,
the client comprises:
a network information storage section which stores the second network name to start the wireless network in the second mode;
and

a second hardware processor that is configured to:
send out the second network name when the client is operated in a specific manner by a user to start the wireless network
in the second mode; and

switch a wireless network mode of the client from the second mode to the first mode based on the network information upon
reception of the network information from the user device through the wireless network in the second mode; and

wherein the first mode is an infrastructure mode and the second mode is an AdHoc mode.

US Pat. No. 9,053,696

SEARCHING FOR A TONE DATA SET BASED ON A DEGREE OF SIMILARITY TO A RHYTHM PATTERN

Yamaha Corporation, Hama...

1. A tone data processing apparatus comprising:
a storage section storing therein tone data sets, each representative of a plurality of sounds in a predetermined time period,
and tone rhythm patterns, each representative of a series of sound generation times of the plurality of sounds, in association
with each other;

a notification section which not only causes designated times in the time period to progress in accordance with passage of
time but also notifies a user of the designated times;

an acquisition section which, on the basis of operation input by a user while the designated times are being notified by said
notification section, acquires an input rhythm pattern representative of a series of the designated times corresponding to
a pattern of the operation input by the user; and

a search section which searches the tone data sets stored in said storage section for a tone data set associated with a tone
rhythm pattern whose degree of similarity to the input rhythm pattern satisfies a predetermined condition,

wherein said storage section stores therein categories of rhythms, determined on the basis of the sound generation time intervals
represented by the tone rhythm patterns, in association with the tone rhythm patterns,

wherein said tone data processing apparatus further comprises: a determination section which, on the basis of intervals between
the designated times represented by the input rhythm pattern, determines a category of rhythm the input rhythm pattern belongs
to; and a calculation section which calculates a distance between the input rhythm pattern and each of the tone rhythm patterns,
and

wherein said search section calculates a degree of similarity between the input rhythm pattern and each of the tone rhythm
patterns on the basis of relationship between the category of rhythm the input rhythm pattern belongs to and a category of
rhythm the tone rhythm pattern belongs to, and

the tone data set identified by said search section is a tone data set associated with a tone rhythm pattern of which the
degree of similarity to the input rhythm pattern, calculated by said search section, satisfies a predetermined condition.

US Pat. No. 9,460,699

ELECTRONIC PERCUSSION INSTRUMENT

YAMAHA CORPORATION, Hama...

1. An electronic percussion instrument comprising:
a frame;
a head fixed to the frame and made of an elastic material with a higher flexibility than the frame, wherein the head includes
a main strike area, which is disposed in a front side of the frame and mainly subjected to a striking operation, and a fixing
part fixed to the frame;

an impact sensor that converts a vibration occurring on the main strike area subjected to a striking operation into an electric
signal; and

a vibration-damping plate composed of a hard resin harder than the head or metal and fixed directly to the head and configured
to surround the main strike area and attenuate impulse sound caused by the main strike area being struck,

wherein a portion of the head engages an outer periphery of the frame.

US Pat. No. 9,384,720

KEYBOARD MUSICAL INSTRUMENT, AND METHOD FOR RECORDING HALF PERFORMANCE OF PEDAL OR KEY DAMPER ON KEYBOARD MUSICAL INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A keyboard musical instrument comprising:
a plurality of keys each configured to control generation and deadening of a corresponding sound in response to an operation
of the key;

a plurality of dampers each provided in corresponding relation to one of the keys and configured to be driven, in response
to an operation of the corresponding key, to control deadening of a sound corresponding to the key;

a pedal configured to collectively drive the plurality of dampers;
a sensor configured to detect a stroke position of the pedal; and
a processor configured to execute:
an acquisition task that acquires information identifying one half region or half point in a stroke of the pedal, the one
half region or half point being determined based on a plurality of half pedal regions or half pedal points, in the stroke
of the pedal, specific to individual ones of the dampers;

a performance data generation task that generates performance data including data instructing a pedal operation, based on
the one half region or half point identified by the information and the stroke position detected by the sensor; and

a recording task that records the performance data including data instructing a pedal operation generated by the performance
data generation task.

US Pat. No. 9,456,278

SPEAKER DEVICE

YAMAHA CORPORATION, Hama...

1. A speaker device comprising:
a signal processing section that performs a signal process with respect to audio signals of a plurality of channels; and
a speaker array having a plurality of speaker units, including a first speaker units group having first speaker units, among
the plurality of speaker units, and a second speaker units group having a second speaker units, among the plurality of speaker
units, for outputting sounds according to the audio signals of the plurality of channels, the second speaker units group being
different from the first speaker units group,

wherein the signal processing section performs a first signal process in which:
sound based on an audio signal of a first channel, among the plurality of channels, is set so as to be output only from the
first speaker units group and a first virtual focus that is a virtual output position of the sound based on the audio signal
of the first channel is set to an opposite side of the speaker array, which is opposite to a sound output direction of the
first speaker units group with respect to the speaker array;

sound based on an audio signal of a second channel, which is different from the first channel, among the plurality of channels,
is set so as to be output only from the second speaker units group and a second virtual focus that is a virtual output position
of the sound based on the audio signal of the second channel is set to the opposite side of the speaker array, which is opposite
to a sound output direction of the second speaker units group with respect to the speaker array;

the first virtual focus is set to the opposite side of the speaker array that is separated in a normal direction normal to
an arrangement direction of the speaker array from a center portion of the first speaker units group, and the second virtual
focus is set to the opposite side of the speaker array that is separated in the normal direction from a center portion of
the second speaker units group; and

the audio signals of the first and second channel are output from the respective first and second speaker units groups as
radiated sound,

wherein the number of each of the first and second speaker units is less than a total number of the plurality of speaker units
of the speaker array to limit overlap of sound emission areas of the first and second channels, and

wherein the signal processing section processes the first signal process so that:
the audio signal of the first channel is output only from the first speaker units group as radiated sound that is symmetrically
distributed with respect to a first imaginary line intersecting the first virtual focus and extending in a direction perpendicular
to an arrangement direction of the first speaker units of the first speaker units group; and

the audio signal of the second channel is output only from the second speaker units group as radiated sound that is symmetrically
distributed with respect to a second imaginary line intersecting the second virtual focus and extending in a direction perpendicular
to an arrangement direction of the second speaker units of the second speaker units group.

US Pat. No. 9,288,549

TERMINAL DEVICE

Yamaha Corporation, Hama...

1. A terminal apparatus comprising:
a communication interface configured to transmit a first request message, which includes an identifier to identify content
and requests the content, to a server apparatus, and to receive encoded content data of a plurality of blocks sequentially
transmitted in a streaming format from the server apparatus in response to the first request message;

a reproduction device configured to reproduce the content by decoding the content data received by the communication interface;
and

a control unit configured to
measure an actual processing time from a time when the first request message is transmitted to a time when decoding of the
content data in a first period is ended after reception of the content data transmitted in response to the first request message
is started; and

control the communication interface to transmit a second request message, which requests content to be reproduced next to
the content being reproduced by the reproduction device, to the server apparatus at a time earlier than a reproduction end
time of the content requested by the first request message by at least the processing times;

wherein the control unit controls the communication interface to transmit the second request message to the server apparatus
at the time earlier than the reproduction end time by at least the processing time and at the time later than a time when
decoding of all the content data is completed.

US Pat. No. 9,099,963

SELECTOR AND AMPLIFIER DEVICE THEREFOR

Yamaha Corporation, Hama...

1. An amplifier device comprising:
a selector unit; and
a remote controller that wirelessly sends an operation signal representing user's operation to the selector unit,
wherein the remote controller includes
an operation part that receives the user's operation to generate the operation signal,
a transmitter that wirelessly transmits the operation signal to the selector unit, and
a display part that displays a predetermined content in response to a control signal from the selector unit,
and wherein the selector unit includes
an input part including a plurality of input terminals for receiving signals output from an external device,
a selector that selectively outputs one of the received signals received at the plurality of input terminals,
an analyzer that analyzes the received signal of each input terminal at a predetermined timing so as to determine whether
or not the received signal is a playback signal,

a storage that stores a determination result determined by the analyzer for each input terminal, and
a controller that compares a new determination result, currently determined by the analyzer, with the stored content of the
storage, thus controlling the selector to select the input terminal receiving a newly determined playback signal.

US Pat. No. 9,269,335

INSTALLATION STRUCTURE FOR ACOUSTIC TRANSDUCER

Yamaha Corporation, Hama...

1. An installation structure for an acoustic transducer configured to operate in accordance with an audio signal and to push
and pull a vibrated body in predetermined directions for thereby vibrating the vibrated body, so as to permit the vibrated
body to generate sounds, comprising:
a magnetic-path forming portion fixedly disposed relative to a fixedly supporting portion and forming a magnetic path;
a vibrating unit having an electromagnetic coupling portion electromagnetically coupled to the magnetic-path forming portion,
the vibrating unit being configured to vibrate in the predetermined directions when the electromagnetic coupling portion is
driven by the magnetic-path forming portion in response to a drive signal based on the audio signal;

a connector having at least one joint portion configured to connect two members such that axes of the two members are inclined
relative to each other by bending at the at least one joint portion, the connector connecting (a) a part of the vibrated body
or a fixed portion fixed to the vibrated body and (b) the vibrating unit,

wherein a first member that is connected to the at least one joint portion on one of opposite sides thereof nearer to the
fixedly supporting portion is provided with a pushing-side driving portion to drive the vibrated body in a pushing direction
of the predetermined directions and a pulling-side driving portion to drive the vibrated body in a pulling direction of the
predetermined directions,

wherein a second member that is connected to the at least one joint portion on the other of the opposite sides thereof nearer
to the vibrated body is provided with a pushing-side driven portion to be driven by the pushing-side driving portion in the
pushing direction and a pulling-side driven portion to be driven by the pulling-side driving portion in the pulling direction,
and

wherein the at least one joint portion has an urging portion configured to generate an urging force by which the pushing-side
driven portion is urged by the pushing-side driving portion in the pushing direction and an urging force by which the pulling-side
driven portion is urged by the pulling-side driving portion in the pulling direction.

US Pat. No. 9,269,336

OPERATING ELEMENT DEVICE

YAMAHA CORPORATION, (JP)...

1. An operating element device comprising:
a pivoting body pivotally supported so that the pivoting body is pivotable about a pivot axis in response to a force directly
or indirectly exerted on the pivoting body by an operator; and

a reaction force generation member that becomes elastically deformed by a depression exerted in an axis line direction and
generates a reaction force against the depression, the reaction force generation member increasing the reaction force from
a beginning with an increasing amount of elastic deformation by the depression, and buckling to reduce the reaction force
after a peak of the reaction force; and

a fastened member,
wherein one of the pivoting body or the fastened member includes a depression portion,
wherein the reaction force generation member is disposed on one of the fastened member or the pivoting body, opposed to the
depression portion, so that the depression portion depresses the reaction force generation member in an axis line direction
in response to pivoting of the pivoting body,

wherein the depression portion and the reaction force generation member are configured so that the axis line direction of
the reaction force generation member exists within an angle between a first normal line of a plane including the pivot axis
and a depression point of the depression portion at a first point in time when the depression portion comes into contact with
the reaction force generation member, and a second normal line of the plane including the pivot axis and the depression point
of the depression portion at a second point in time when the depression portion finishes depressing the reaction force generation
member.

US Pat. No. 9,812,108

SUPPORT ASSEMBLY AND KEYBOARD APPARATUS

Yamaha Corporation, Hama...

1. A support assembly comprising:
a support rotatably disposed with respect to a frame;
a repetition lever hinge mounted to the support; and
a repetition lever supported by the repetition lever hinge and rotatably disposed with respect to the support, wherein
the repetition lever has a contact surface and the contact surface contacts a hammer shank roller provided to a hammer shank
for rotating a hammer, and

the repetition lever hinge is mounted to the support in a mounting direction that crosses with a tangent-line direction of
a line tangent to the hammer shank roller at the contact between the hammer shank roller and the contact surface.

US Pat. No. 9,473,869

AUDIO SIGNAL PROCESSING DEVICE

Yamaha Corporation, Hama...

1. An audio signal processing device comprising:
an input section to which an audio signal is input;
a bias processing section configured to add a bias signal to the audio signal;
a bias amount calculation section configured to calculate an unwanted bias signal;
a calculation section configured to perform a power calculation on, and to eliminate the unwanted bias signal from, the audio
signal to which the bias signal has been added by the bias processing section; and

an adding unit configured to add the audio signal on which the power calculation is performed by the calculation section and
from which the unwanted bias signal is eliminated by the calculation section, to the audio signal having been input to the
input section.

US Pat. No. 9,275,615

INFORMATION PROCESSING TERMINAL THAT DISPLAYS INFORMATION RELATED TO A FUNCTION SELECTED BASED ON A POSITIONAL RELATION, AND SYSTEM

YAMAHA CORPORATION, Hama...

1. An information processing terminal which communicates with an electronic device, the electronic device including a casing
having a detection area defined thereon, the information processing terminal comprising:
a specifying device for specifying a positional relation between the electronic device and the information processing terminal,
wherein the positional relation includes a position of the information processing terminal on the detection area;

a display for displaying a screen;
a function selector for selecting a function from among a plurality of functions of the electronic device by referring to
function assignment information which denotes a correspondence between the positional relation specified by the specifying
device and a function of the plurality of functions of the electronic device, wherein the function assignment information
denotes a correspondence to different functions for different specified positional relations,

a display controller for controlling the display such that the display displays an information related to the function selected
by the function selector;

a control information generator for generating control information for controlling the electronic device based on an operation,
by a user, on function-related information displayed on the display; and

a control information transmitter for transmitting the control information generated by the control information generator
to the electronic device; wherein the electronic device is an electronic musical instrument.

US Pat. No. 9,203,360

AUDIO OUTPUT AMPLIFIER

Yamaha Corporation, Hama...

1. An audio output amplifier, comprising:
a plurality of amplification circuits that drive a plurality of electroacoustic conversion devices, respectively, wherein
each of the plurality of amplification circuits includes:
a current detection resistance that is provided between a path of a current which is supplied to the corresponding electroacoustic
conversion device; and

a current controller that generates a voltage between both ends of the current detection resistance, the voltage being proportional
to a voltage value of an audio input signal supplied to the corresponding amplification circuit, wherein

each of the plurality of amplification circuits further includes a signal converter that converts the audio input signal supplied
to the corresponding amplification circuit to a first phase audio signal and a second phase audio signal which have a voltage
difference proportional to a difference between the voltage value of the audio input signal supplied to the corresponding
amplification circuit and a reference voltage, wherein

the current controller in each of the plurality of amplification circuits generates a voltage between the both ends of the
current detection resistance, the voltage being proportional to the voltage difference between the first phase audio signal
and the second phase audio signal output by the signal converter of the corresponding amplification circuit; and

the current controller includes:
an operational amplifier having an inverting input terminal, a non-inverting input terminal and an output terminal;
a first resistance that is provided between a node to which the first phase audio signal is output and the inverting input
terminal of the operational amplifier;

a second resistance that is provided between the inverting input terminal of the operational amplifier and the output terminal
of the operational amplifier;

a third resistance that is provided between a node to which the second phase audio signal is output and the non-inverting
input terminal of the operational amplifier; and

a fourth resistance that is provided between the non-inverting input terminal of the operational amplifier and the corresponding
electroacoustic conversion device, wherein

the current detection resistance has one end connected to the output terminal of the operational amplifier and the other end
connected to an end of the fourth resistance at a side of the electro acoustic conversion device.

US Pat. No. 9,049,504

SOUND EMISSION AND COLLECTION DEVICE

YAMAHA CORPORATION, (JP)...

1. A sound emission and collection device comprising:
a plurality of unidirectional microphones each having a sound collecting side; and
a plurality of speakers each having a sound emitting side,
wherein the plurality of unidirectional microphones are circumferentially arranged along a first circle with the sound collecting
sides thereof facing a center of the first circle,

wherein the plurality of speakers are circumferentially arranged along a second circle,
wherein the second circle is concentric with the first circle,
wherein each of the plurality of speakers is associated with a corresponding unidirectional microphones, among the plurality
of the unidirectional microphones, with the speaker and corresponding unidirectional microphone being disposed on the same
radius from the center and being located at different distances from the center, and

wherein the sound emitting side of each of the plurality of speakers faces away from the sound collecting side of the corresponding
unidirectional microphone.

US Pat. No. 9,508,325

WHITE KEY OF KEYBOARD INSTRUMENT

Yamaha Corporation, Hama...

1. A white key of a keyboard instrument, the white key comprising:
an upper wall elongated in a front and rear direction; and
a pair of side walls extending downward respectively from right and left edges of the upper wall and each elongated in the
front and rear direction,

the upper wall and the pair of side walls defining an inner space opening downward,
the upper wall and the pair of side walls comprising a narrow portion and a wide portion that is greater than the narrow portion
in width in a right and left direction,

the white key comprising right and left portions located respectively to right and left of a center line of the narrow portion
in the right and left direction,

a one-side portion as one of the right and left portions and an other-side portion as another of the right and left portions
being different from each other in construction to adjust a balance of load between the right and left portions with respect
to the center line.

US Pat. No. 9,214,148

ACOUSTIC STRUCTURE

Yamaha Corporation, Hama...

1. An acoustic structure, comprising a first pipe and a second pipe each having a plurality of cavities that are partitioned
by a partition, each of the plurality of cavities extending in a first direction that is a longitudinal direction of the first
and second pipes, the plurality of cavities of the first pipe and the second pipe being arranged in a second direction that
is perpendicular to the first direction,
wherein the first pipe has a plurality of openings which permit the plurality of cavities of the first pipe to communicate
with an exterior of the first pipe, the plurality of openings being arranged in the second direction and being provided for
at least two cavities, which are adjacent to each other in the second direction, of the plurality of cavities of the first
pipe, a position of each of the plurality of openings in the first direction being a first position,

wherein the second pipe has a plurality of openings which permit the plurality of cavities of the second pipe to communicate
with an exterior of the second pipe, the plurality of openings being arranged in the second direction and being provided for
at least two cavities, which are adjacent to each other in the second direction, of the plurality of cavities of the second
pipe, a position of each of the plurality of openings in the first direction being a second position that is different from
the first position,

wherein lengths of the plurality of cavities of the first pipe in the first direction are the same as each other,
wherein the plurality of openings of the first pipe are formed such that each of the plurality of cavities of the first pipe
has a first resonance frequency, and

wherein the plurality of openings of the second pipe are formed such that each of the plurality of cavities of the second
pipe has a second resonance frequency that is different from the first resonance frequency.

US Pat. No. 9,196,237

ELECTRONIC PERCUSSION INSTRUMENT

YAMAHA CORPORATION, (JP)...

1. An electronic percussion instrument comprising:
a stand;
a pad member having a head configured to be struck with a beater;
an impact sensor configured to convert a vibration occurring on the head subjected to a striking operation into an electric
signal;

a cover member having a cylindrical portion which covers at least an external circumference of the pad member; and
a fixing member which is a part of the stand or which is not a part of the pad member but fixed to the stand,
wherein the cover member is attached to the fixing member without contacting the pad member such that when the head is struck
with the beater, the vibration occurring on the head is prevented from being directly transmitted to the cover member.

US Pat. No. 9,166,816

NETWORK SYSTEM AND AUDIO SIGNAL PROCESSOR

Yamaha Corporation, Hama...

1. A network system comprising a series of a plurality of connected nodes, each node having two interface sets of receivers
and transmitters, each of the receivers and the transmitters performing communication in a single direction respectively,
the plurality of nodes are connected in such a manner that one interface set including a receiver and a transmitter in one
node is connected with one interface set including a transmitter and a receiver in a next node, respectively, in the series
wherein each one node X in the series which receives a frame from one next node Y via the receiver in one interface set S1 in the node X, if the node X is positioned at the end of the series only the one interface set S1 of the two interface sets S1 and S2 in the node X is connected to the one next node Y, transmits the received frame back to the one next node Y via the transmitter
in the one interface set S1 and, if the node X is positioned at the middle of the series the two interface sets S1 and S2 in the node X are connected to the one next node Y and another next node Z, transmits the received frame ahead to the another
next node Z via the transmitter in another interface set S2 in the node X, thereby a ring transmission route is formed among said nodes connected in the series,

one of the plurality of nodes operates as a master node which generates and transmits an audio transport frame at a constant
period, the audio transport frame circulates along said formed ring transmission route at said constant period, said audio
transport frame including a plurality of storage regions for audio signals, and each of said nodes writes audio signals to
or reads audio signals from the audio transport frame to thereby transport the audio signals among said nodes connected in
series,

said master node operates in a single mode and in a twin mode, the master node in the single mode transmits the audio transport
frame generated by the master node from the transmitter in one interface set SM1 among the two interface sets in the master node at said constant period, and the master node in the twin mode transmits two
frames from the respective transmitters in the two interface sets in the master node at said constant period, at least one
of said two frames including the audio transport frame generated by the master node,

said master node comprises:
a first judging device that judges whether or not the master node receives, within a first predetermined time after transmitting
an audio transport frame from the transmitter in said one set SM1, the audio transport frame by the receiver in the same set SM1;

a second judging device that judges whether or not the master node receives, within a second predetermined time after transmitting
an audio transport frame from the transmitter in said one set SM1, the audio transport frame by the receiver in another set SM2; and

a mode shifting device that shifts the master node into the twin mode, if judgment by said first judging device is negative
and judgment by said second judging device is positive.

US Pat. No. 9,105,259

MUSIC INFORMATION DISPLAY CONTROL METHOD AND MUSIC INFORMATION DISPLAY CONTROL APPARATUS

Yamaha Corporation, Hama...

1. A music information display control method comprising:
displaying, on a display device, a musical note sequence image in which a plurality of musical note iconic images corresponding
to musical notes are disposed in a musical score area where a time axis is set;

disposing an operation iconic image in a vicinity of one of the musical note iconic images;
accepting an instruction from a user on the operation iconic image; and
changing a display length or a display position of the musical note iconic image in a direction of the time axis according
to the instruction to move the operation iconic image

wherein the operation iconic image is disposed in the vicinity of only the musical note iconic image selected among from the
musical note iconic images by the user, and the operation iconic image is not disposed in a vicinity of the musical note iconic
image being not selected among from the musical note iconic images by the user.

US Pat. No. 9,054,028

MAGNETIC SENSOR AND MANUFACTURING METHOD THEREFOR

Yamaha Corporation, Hama...

1. A manufacturing method for a magnetic sensor comprising:
forming a planation layer that provides planation by covering a wiring layer of a semiconductor substrate;
forming a passivation film on the planation layer;
forming a thick film on the passivation film;
forming a resist film on the thick film;
partially removing the resist film;
performing etching on the resist film and the thick film, thus forming a plurality of channels in the thick film;
forming an opening in the thick film to form a via;
forming a wiring film on a planar surface of the thick film as well as slopes, top portions, and bottom portions of the channels;
connecting the wiring film to a conductive portion of the via;
forming magneto-sensitive elements on the slopes of the channels; and
connecting the wiring film to the magneto-sensitive elements.

US Pat. No. 10,075,803

SPEAKER DEVICE

Yamaha Corporation, Hama...

1. A speaker device, comprising:a cabinet having a first surface and a second surface, the first surface being different from the second surface;
a first speaker unit provided at the first surface and configured to emit a sound corresponding to a first acoustic signal that is input into the first speaker unit and a second speaker unit provided at the second surface and configured to emit a sound corresponding to a second acoustic signal that is input into the second speaker unit;
the cabinet being configurable in a first installed state or a second installed state, wherein the first speaker unit faces a listening position in the first installed state and the second speaker unit faces the listening position in the second installed state; and
at least one processor for executing stored instructions to:
determine whether the cabinet is in the first installed state or the second installed state, and
perform processing on a frequency band of the first acoustic signal or the second acoustic signal depending on whether the cabinet is in the first installed state or the second installed state.

US Pat. No. 9,558,728

SETTING AND EDITING TONE SETTING INFORMATION VIA LINK

YAMAHA CORPORATION, Hama...

1. An apparatus for setting tone setting information, which comprises:
a storage device storing a plurality of sets of tone setting information, each of the plurality of sets of tone setting information
including one or more tone setting parameters, said storage device also storing, for each of the plurality of sets of tone
setting information, a link ID identifying a link associated with a respective set of tone setting information; and

a processor configured to cause, in response to an editing of a first set of tone setting information, settings of the tone
setting parameters of a plurality of sets of the tone setting information having the same link ID as the link ID of the first
set of tone setting information to match the edited first set of tone setting information.

US Pat. No. 9,373,311

METHOD OF MANUFACTURING ELECTRONIC PERCUSSION PAD

Yamaha Corporation, Hama...

1. An electronic percussion pad comprising:
a pad main body that is formed of a foaming elastomer, and
a composite layer that is laminated on a front surface of the pad main body, the composite layer being a layer in which the
foaming elastomer of the pad main body is impregnated into an expandable fiber sheet; wherein bubbles are formed in the composite
layer by allowing the foaming elastomer impregnated into the expandable fiber sheet to foam; wherein the average value;

of cross-sectional area of the bubbles is 2,500 ?m2 to 40,000 ?m2.

US Pat. No. 9,313,566

ACOUSTIC EQUIPMENT

Yamaha Corporation, Hama...

1. An audio device detachably attachable to a pole of a stand, comprising:
an abutting section constructed in such a manner that a distal end of the pole abuts against said abutting section when said
audio device is attached to the pole;

a pressing member constructed to be operable to pivot in tightening and loosening directions, said pressing member having
a pressing surface that presses a side surface portion of the pole toward a central axis of the pole as said pressing member
is operated to pivot in the tightening direction with said audio device attached to the pole; and

a stopping/engaging section provided opposite from the pressing surface of said pressing member across the central axis, said
stopping/engaging section engaging and supporting the pole pressed by the pressing surface,

wherein said pressing member is constructed in such a manner that, as said pressing member is operated to pivot in the tightening
direction, a position of the pressing surface pressing a side surface portion of the pole gradually gets closer to the central
axis of the pole so that pressing force applied from the pressing surface increases.

US Pat. No. 9,305,531

ONLINE REAL-TIME SESSION CONTROL METHOD FOR ELECTRONIC MUSIC DEVICE

YAMAHA CORPORATION, Hama...

1. An online real-time session control method adapted to an electronic music device including an interface for establishing
a connection with a counterpart electronic music device via a communication network and a display, the method comprising the
steps of:
displaying a plurality of performance operators on the display;
detecting a user's operation applied to a performance operator among the plurality of performance operators displayed on the
display of the electronic music device;

transmitting operation data representing the detected user's operation to the counterpart electronic music device;
receiving another operation data representing another user's operation from the counterpart electronic music device;
discriminating whether the user's operation corresponds to a short press where the performance operator is pressed for a short
time or a long press where the performance operator is held for a long time longer than a predetermined threshold;

controlling the electronic music device to generate sound based on the detected operation data representing the user's operation
detected on the display and the received operation data representing another user's operation applied to the performance operator
of the counterpart electronic music device, wherein the controlling step controls the electronic music device to generate
sound when the short press is given to the performance operator;

setting a tone-generation point to the performance operator pertaining to the long press; and
further controlling the electronic music device to change a display manner of the performance operator designated by the user's
operation on the display and the received operation data representing another user's operation.

US Pat. No. 9,275,616

ASSOCIATING MUSICAL SCORE IMAGE DATA AND LOGICAL MUSICAL SCORE DATA

YAMAHA CORPORATION, (JP)...

1. A computer-implemented method for analyzing a musical score based on musical score image data representing an image of
a musical score of a given music piece and logical musical score data logically representing the musical score of the given
music piece, the method comprising:
identifying, based on the musical score image data of a first type file, an image note sequence that is a time series of a
plurality of notes included in the image of the musical score of the given music piece;

identifying, based on the logical musical score data of a second type file different from the first type file, a logical note
sequence that is a time series of a plurality of notes included in the musical score of the given music piece; and

generating musical score analysis data defining a correspondence relationship between individual ones of the notes in the
image note sequence and individual ones of the notes in the logical note sequence by comparing the image note sequence and
the logical note sequence,

wherein said comparing the image note sequence and the logical note sequence compares a time series of vector data of the
image note sequence and a time series of vector data of the logical note sequence.

US Pat. No. 9,224,406

TECHNIQUE FOR ESTIMATING PARTICULAR AUDIO COMPONENT

Yamaha Corporation, Hama...

1. An audio processing apparatus comprising:
a frequency detection section which identifies, for each of unit segments of an audio signal, a plurality of fundamental frequencies;
a first processing section which identifies, through a path search based on a dynamic programming scheme, an estimated train
that is a series of fundamental frequencies, each selected from the plurality of fundamental frequencies of a different one
of the unit segments, arranged over a plurality of the unit segments and that has a high likelihood of corresponding to a
time series of fundamental frequencies of a target component of the audio signal;

a second processing section which identifies, through a path search based on a dynamic programming scheme, a state train that
is a series of sound generation states, each indicative of one of a sound-generating state and non-sound-generating state
of the target component in a different one of the unit segments, arranged over the plurality of the unit segments; and

an information generation section which generates frequency information for each of the unit segments, the frequency information
generated for each unit segment corresponding to the sound-generating state in the state train being indicative of one of
the fundamental frequencies in the estimated train that corresponds to the unit segment, the frequency information generated
for each unit segment corresponding to the non-sound-generating state in the state train being indicative of no sound generation
for the unit segment.

US Pat. No. 9,183,824

TIMBRE SELECTOR, MUSICAL INSTRUMENT, AND TIMBRE SELECTING METHOD

Yamaha Corporation, Hama...

1. A timbre selector comprising:
a first signal processing unit that includes a first input terminal, a first filter and a first output terminal, the first
input terminal receiving a first tone signal, the first filter processing the first tone signal to generate a first processed
signal, the first output terminal outputting the first processed signal;

a second signal processing unit that includes a second input terminal, a second filter and a second output terminal, the second
input terminal receiving a second tone signal, the second filter processing the second tone signal to generate a second processed
signal, the second output terminal outputting the second processed signal; and

a first switch that switches between a plurality of positions including first, second and third positions, the first switch
being connected to the first output terminal at the first position, the first switch being connected to the first and second
output terminals at the second position, the first switch being connected to the second output terminal at the third position,

the first switch outputting the first processed signal at the first position, the first switch outputting the first and second
processed signals at the second position, the first switch outputting the second processed signal at the third position.

US Pat. No. 9,142,198

SILENCER

Yamaha Corporation, Hama...

1. A silencer comprising:
a hollow main body to be inserted in a bell of a wind instrument and comprising a rear end portion serving as an opening portion,
and a front end portion serving as a closing portion; and

a flow-path adjuster supported by the main body in the bell and configured to narrow a path through which a breath of a player
of the wind instrument is delivered into the main body,

wherein the front end portion of the main body is located in a vicinity of a frontmost portion of the bell or at a rear of
the frontmost portion in a state in which the main body is mounted in the bell.

US Pat. No. 9,130,578

PLL CIRCUIT

Yamaha Corporation, Hama...

1. A PLL circuit that operates in synchronization with an operating clock and generates and outputs a generated clock in synchronization
with an external clock, which is an inputted clock signal having substantially constant cycles, the PLL circuit comprising:
a multi-phase clock generating unit that generates multi-phase clocks including n clocks which have a same first frequency
and each of which differs in phase from one another, one of the n clocks included in the multi-phase clocks being the operating
clock;

a frequency signal generating unit that outputs a frequency signal based on a phase difference signal from a phase comparator;
an oscillating unit that generates and outputs the generated clock oscillating with a second frequency corresponding to the
frequency signal, wherein the first frequency of the operating clock is larger than the second frequency of the generated
clock; and

the phase comparator that measures, based on the n clocks included in the multi-phase clocks, a time difference, wherein the
time difference is measured between a rising time of the inputted external clock and a rising time of the generated clock
generated in the oscillating unit or between a falling time of the inputted external clock and a falling time of the generated
clock generated in the oscillating unit, and outputs the phase difference signal indicating the time difference, wherein n
is an integer number.

US Pat. No. 9,123,318

OBJECT BASED MUSICAL COMPOSITION PERFORMANCE APPARATUS AND PROGRAM

Yamaha Corporation, Hama...

1. A musical performance apparatus comprising:
a processor configured to:
display a plurality of time lines on a display along a time axis according to an operation, each time line being an image
representing a period of a phrase and being independently adjustable in position, length or period thereof according to an
operation;

allocate a plurality of objects to at least one of the plurality of time lines on the display according to an operation, each
object being a symbol corresponding to and representing a sound to be generated, a first object of the plurality of objects
being allocated as a common object belonging to at least two of the plurality of time lines on the display, wherein one or
more objects allocated to a time line forms a phrase; and

generate, independently for each time line and repeatedly at a period corresponding to each time line, sound corresponding
to the one or more objects allocated to a time line at a timing determined according to a position of each of the one or more
objects in a longitudinal direction of the time line so as to repeat sound generation of a plurality of phrases corresponding
to the plurality of time lines along the time axis,

wherein at least a portion of at least one of the plurality of phrases is overlapped with one or more of the others of the
plurality of phrases in the time axis.

US Pat. No. 9,082,382

MUSICAL PERFORMANCE APPARATUS AND MUSICAL PERFORMANCE PROGRAM

YAMAHA CORPORATION, (JP)...

1. A musical performance apparatus comprising:
waveform data storing portion storing a plurality of basic waveform data sets indicative of waveforms of a plurality of different
tones corresponding to a plurality of different digital signals and containing frequency components included in a predetermined
frequency band; and

reproducing portion that selects two or more tones from among the plurality of tones in accordance with a control signal for
controlling an external apparatus, reads out the basic waveform data indicative of the selected tones from the waveform data
storing portion, and reproduces a control tone that corresponds to the control signal,

wherein the control tone includes a combination of the selected tones.

US Pat. No. 9,659,549

SUPPORT ASSEMBLY AND KEYBOARD APPARATUS

Yamaha Corporation, Hama...

1. A support assembly of a keyboard apparatus activated in accordance with pressing of a key to rotate a hammer provided at
one end of a hammer shank, the support assembly comprising:
a support rotatably disposed with respect to a frame; and
a jack rotatably disposed with respect to the support and having one end including a rib which makes contact with a hammer
shank roller provided to the hammer shank.

US Pat. No. 9,520,107

KEYBOARD MUSICAL INSTRUMENT

Yamaha Corporation, Hama...

1. A method of manufacturing a fall board, the method comprising:
mixing a foaming agent, which produces gas when being heated, with a base resin to form a mixed resin material; supplying
the mixed resin material to a molding die;

heating the molding die to allow a plurality of air bubbles to be formed inside the mixed resin material and to thereby obtain
a resin foamed plate having a plurality of hollow portions therein; and

laminating a resin surface layer on a surface of the resin foamed plate.

US Pat. No. 9,424,825

KEYBOARD APPARATUS FOR AN ELECTRONIC MUSICAL INSTRUMENT

Yamaha Corporation, Hama...

9. A keyboard apparatus for an electronic musical instrument, the keyboard apparatus comprising:
a plurality of keys composed of white keys and black keys, each key pivoting about a corresponding pivot axis so that a front
end thereof is movable up and down; and

a plurality of reaction force generation members each provided for one of the plurality of keys, and made of an elastic body,
wherein each of the plurality of reaction force generation members is depressable by a depression of the corresponding key
to generate a reaction force against the depression of the corresponding key,

wherein each of the reaction force generation members has a dome portion, which is thin and having a dome shape, the dome
portion being elastically deformed by depression, and a base portion, which is thick and integral with the dome portion to
support the dome portion, extending downwardly and radially outwardly from a lower end of the dome portion, and

wherein the lower end of the body portion of one of the white keys is displaced in a vertical direction from the lower end
of the body portion of one of the black keys.

US Pat. No. 9,407,983

MICROPHONE DEVICE

Yamaha Corporation, Hama...

1. A microphone device comprising: a housing having an opening section in an upper face thereof and having a polygonal planar
shape; and a non-directional microphone unit incorporated in the housing and provided inside the opening section, wherein
the housing includes the upper face, a side face and a bottom face,
an edge is defined as a boundary between the upper face, and the side face or the bottom face,
the opening section is located at a center of a circumscribed circle of a planar shape of the upper face, and
the upper face of the housing has a shape in which an average value of a distance from the edge to the microphone unit throughout
a whole circumference of the upper face is shorter than ½ of a wavelength of a sound wave of 10 kHz and in which a ratio of
a longest distance to a shortest distance, from the edge to the microphone unit, is two or more in each side of the polygonal
shape.

US Pat. No. 9,379,679

SELF-OSCILLATING CLASS-D AMPLIFIER AND SELF-OSCILLATING FREQUENCY CONTROL METHOD FOR SELF-OSCILLATING CLASS-D AMPLIFIER

Yamaha Corporation, Hama...

1. A self-oscillating class-D amplifier comprising:
a self-oscillation frequency varying element which is placed in a self-oscillation loop of the self-oscillating class-D amplifier
and varies a self-oscillation frequency of the self-oscillation loop, the self-oscillation loop receiving an input signal;
and

a frequency control loop which:
extracts a self-oscillation signal of the self-oscillating class-D amplifier or a signal corresponding to the self-oscillation
signal,

performs frequency comparison, cycle comparison, or phase comparison between the extracted signal and a reference frequency
signal having a prescribed reference frequency, wherein the reference frequency signal is independent of the input signal
to the self-oscillation loop, and

controls the self-oscillation frequency varying element in accordance with a result of the comparison and thereby performs
a control of causing a frequency of the self-oscillation signal or the signal corresponding to the self-oscillation signal
to follow the reference frequency.

US Pat. No. 9,374,639

AUDIO APPARATUS AND METHOD OF CHANGING SOUND EMISSION MODE

Yamaha Corporation, Hama...

1. An audio apparatus comprising:
a main body;
a plurality of speakers provided in the main body;
a receiving section on the main body configured to receive an external device and receive posture information of the external
device from the external device, the external device providing audio signals to said plurality of speakers and including a
posture detector configured to generate the posture information;

a storage section configured to store a conversion table which indicates a correspondence between postures of the external
device and control contents of audio signals to be supplied to the speakers; and

a control section configured to refer to the conversion table of the storage section, and control the audio signals to be
supplied to the speakers in accordance with the posture information of the external device received by the receiving section.

US Pat. No. 9,270,242

SOUND VOLUME ADJUSTING APPARATUS

Yamaha Corporation, Hama...

1. A sound volume adjuster comprising:
a storage which stores a first value of a volume setting value and an allowable maximum change amount;
a communication interface operatively configured to receive a change request indicating a second value of the volume setting
value;

a comparison device operatively configured to, when a change amount of the volume setting value between the first value and
the second value exceeds the allowable maximum change amount, determine that the change request is an excessive request; and

a volume controller operatively configured to, when the comparison device determines that the change request is the excessive
request:

change the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change
amount to set a third value of the volume setting value; and

adjust a sound volume by the third value, wherein
the communication interface receives the change request indicating the second value from an external apparatus in which the
second value is set, and

when the comparison device determines that the change request is the excessive request, the comparison device transmits the
third value stored in the storage to the external apparatus.

US Pat. No. 9,257,111

MUSIC ANALYSIS APPARATUS

Yamaha Corporation, Hama...

1. A music analysis apparatus comprising:
a first analyzer configured to calculate a first similarity index based on an edit distance between a designated sequence
of notes designated by a user and a reference sequence of notes of a reference piece of music,

wherein the first analyzer calculates the edit distance by setting a substitution cost between a first note in the designated
sequence of notes and a second note in the reference sequence of notes to a first value when one of the first note and the
second note corresponds to any of a plurality of notes contained in a tolerance interval containing the other of the first
note and the second note, and by setting the substitution cost to a second value different from the first value when one of
the first note and the second note does not correspond to any of the plurality of notes contained in the tolerance interval.

US Pat. No. 9,232,300

BASS REFLEX PORT AND TUBULAR BODY

Yamaha Corporation, Hama...

1. A bass reflex port which has a tubular shape and through which air flows,
wherein an angle of a first inner radial line with respect to a reference plane that includes a center axis of the bass reflex
port differs from an angle of a second inner radial line with respect to the reference plane, the first inner radial line
being orthogonal to the center axis and passing through a first characteristic point located on an inner circumference of
the bass reflex port in a first transverse cross section perpendicular to the center axis, the second inner radial line being
orthogonal to the center axis and passing through a second characteristic point corresponding to the first characteristic
point and located on the inner circumference in a second transverse cross section perpendicular to the center axis, the first
transverse cross section and the second transverse cross section differing from each other in position in a direction of extension
of the center axis.

US Pat. No. 9,153,220

ELECTRONIC PERCUSSION INSTRUMENT

YAMAHA CORPORATION, (JP)...

1. An electronic percussion instrument comprising:
a frame having a head-attaching portion;
a head, which is made of an elastic material with a higher flexibility than the frame, which includes a main strike area which
is disposed on a surface and mainly subjected to a striking operation, and whose periphery is directly fixed to the head-attaching
portion of the frame or whose periphery is fixed to the head-attaching portion of the frame via a joint member; and

an impact sensor which converts a vibration occurring on the main strike area subjected to a striking operation into an electric
signal,

wherein an opening which allows air to transmit there through at the striking operation is formed in a portion of the head
circumventing the main strike area such that the main strike area is opening-free.

US Pat. No. 9,124,978

SPEAKER ARRAY APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM

YAMAHA CORPORATION, (JP)...

1. A speaker array apparatus for outputting sound beams of a plurality of channels based on audio signals of the plurality
of channels, the speaker array apparatus comprising:
a directivity control section configured to:
set directivities of a pair of a first sound beam of a first channel to travel at a first path and a second sound beam of
a second channel to travel at a second path different from the first path, among the plurality of channels; and

control the directivity of the first sound beams so that the first sound beam takes the second path instead of the set first
path; and

a frequency characteristic applying section configured to apply a frequency characteristic to the audio signal corresponding
to the first sound beam whose directivity has been controlled by the directivity control section to take the second path to
change a sound image localization position of the first sound beam,

wherein the frequency characteristic corresponds to an arriving direction of the first sound beam traveling at the set first
path toward a predetermined listening position.

US Pat. No. 9,836,615

MUSIC-CONTENT USING APPARATUS CAPABLE OF MANAGING COPYING OF MUSIC CONTENT, AND PROGRAM THEREFOR

Yamaha Corporation, Hama...

1. A music-content using apparatus comprising:
a communication interface for acquiring music content including first additional information, the acquired music content based
on replication from first replicated-from content, the first additional information including:

first information indicating that the music content is based on replication and
first replication source information identifying a first replicated-from source at which the first replicated-from content
is located; and

a processor that is configured to perform:
first searching, through a memory system accessible by the music-content using apparatus, to find the first replicated-from
content on the basis of the first replication source information included in the first additional information included by
the music content acquired via said communication interface, said first searching based on the first replication source information
identifying the first replicated-from source at which the first replicated-from content is located,

wherein the first replicated-from content is original music content or not original music content,
wherein, when the first replicated-from content is not original music content, the first replicated-from content includes
second additional information, the first replicated-from content based on replication from second replicated-from content,
the second additional information including:

second information indicating that the first replicated-from content is based on replication and
second replication source information identifying a second replicated-from source at which the second replicated-from content
is located,

wherein, when the second additional information including the second replication source information is included by the first
replicated-from content that has been found by the first searching, the processor is configured to perform:

second searching, through the memory system, to find the second replicated-from content on the basis of the second replication
source information included in the second additional information included by the first replicated-from content,

wherein the second replicated-from content is original music content or not original music content,
wherein, when the second replicated-from content that has been found by the second searching is not original music content,
the processor is configured to perform:

 sequentially repeating said second searching one or more times to sequentially find one or more previous replicated-from
content based on respective replication source information included in respective additional information included by the second
and previous replicated-from content;

determining a determination indicating that the original music content has been successfully found by said first or second
searching or the subsequently-repeated second searching; and

permitting use of the acquired music content based on said determination indicating that the original music content has been
successfully found by said first or second searching or the subsequently-repeated second searching.

US Pat. No. 9,685,146

DRUM BEATER AND DRUM FOOT PEDAL APPARATUS

YAMAHA CORPORATION, Hama...

1. A drum beater comprising:
a beater head for striking a drum;
a beater rod having the beater head mounted thereon at one-end side;
a retention member mounted on the beater rod and displaceable in an axial direction of the beater rod, the retention member
having an operating section configured to be operable with a hand of a human operator; and

a weight member attached to the beater rod and sandwiched between the retention member and the beater head,
wherein the retention member is disposed closer to an opposite-end side of the beater rod than the beater head.

US Pat. No. 9,590,568

POWER AMPLIFIER

Yamaha Corporation, Hama...

1. A power amplifier comprising:
a class D amplification section that includes an input section and a switching section serving as an output stage and switched
depending on a signal input to the input section, and that outputs current from a power source to a load via the switching
section;

a load current feedback circuit that feeds back a current flowing in the load to a negative terminal of the input section
of the class D amplification section; and

a filter current feedback circuit that feeds back a current flowing in a filter to the negative terminal of the input section
of the class D amplification section;

wherein the filter is interposed between the output stage of the class D amplification section and the load;
wherein the filter comprises an inductor and a capacitor;
wherein the inductor is inserted between an output terminal of the output stage and the load so as to be connected in series
to the output stage and the load; and

wherein one terminal of the capacitor is connected to a node between the inductor and the load.

US Pat. No. 9,583,079

SILENCER FOR WIND INSTRUMENT

Yamaha Corporation, Hama...

1. A silencer for a wind instrument, comprising a hollow pipe whose one end in a direction along an axis of the pipe is a
large-diameter end and serves as a closed end,
the pipe comprising an outer wall on which a plurality of recessed portions or at least one protruding portion are formed
in a vicinity of the closed end,

the outer wall comprising a conical side wall which defines a side end of an inner space of the pipe, and a bottom wall which
closes one end of the side wall such that the bottom wall defines a bottom end of the inner space of the pipe,

wherein the plurality of recessed portions are formed on the outer wall and arranged around the axis of the pipe,
wherein each of the plurality of recessed portions extends continuously from an outer surface of the bottom wall to an outer
surface of the side wall, and

wherein the plurality of recessed portions are formed on an outer edge of the bottom wall by a connection of the large-diameter
end of the pipe to the outer surface of the bottom wall while keeping a shape of the plurality of recessed portions formed
on the outer wall of the pipe.

US Pat. No. 9,502,014

ACTUATOR CONTROL IN AUTOMATIC PERFORMANCE OF MUSICAL INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A musical instrument comprising:
a performance operator;
an actuator configured to actuate the performance operator, the actuator including a movable member that, when moving, abuts
against the performance operator to move the performance operator;

a first sensor configured to detect motion of the performance operator;
a second sensor configured to detect motion of the movable member of the actuator; and
a processor configured to determine, based on outputs of the first and second sensors, whether or not the performance operator
and the movable member of the actuator are currently in a mutually separated state, and, upon determination that the performance
operator and the movable member are currently in the mutually separated state, control the actuator in such a manner that
the performance operator and the movable member are in contact with each other.

US Pat. No. 9,454,956

SOUND PROCESSING DEVICE

Yamaha Corporation, Hama...

1. A sound processing device for processing a sound signal, comprising:
a non-transitory storage medium storing a program;
a processor, when executing the program, configured to:
calculate a first index value that follows change of the sound signal at a first following degree and a second index value
that follows the change of the sound signal at a second following degree which is lower than the first following degree;

calculate an adjustment value effective to adjust a reverberation component of the sound signal based on difference between
the first index value and the second index value; and

apply the adjustment value to the sound signal.

US Pat. No. 9,437,178

UPDATING MUSIC CONTENT OR PROGRAM TO USABLE STATE IN COOPERATION WITH EXTERNAL ELECTRONIC AUDIO APPARATUS

YAMAHA CORPORATION, Hama...

1. An apparatus operating in cooperation with an external electronic audio apparatus, comprising:
a storage section storing therein one or more sets of music content, at least a part of the one or more sets of music content
being set in a non-usable state at least in an initial state;

a reception section configured to receive a signal, which includes a tone signal portion representing music piece data, performance
data, or both the music piece data and the performance data and a control signal portion, transmitted by the external electronic
audio apparatus;

a determination section configured to determine whether the control signal portion of the signal received by said reception
section satisfies a predetermined condition; and

a state update section configured to, when said determination section has determined that the control signal portion of the
signal satisfies the predetermined condition, update, to a usable state, at least a part of the sets of music content, stored
in said storage section, that is currently set in the non-usable state.

US Pat. No. 9,432,799

PROXIMITY COMMUNICATION SYSTEM AND PROXIMITY COMMUNICATION APPARATUS

Yamaha Corporation, Hama...

1. A proximity communication system comprising:
a first device which is configured to reproduce audio data, the first device including a first proximity communication section
which is configured to perform proximity communication; and

a third device which includes:
a second proximity communication section which is configured to perform proximity communication;
a high-speed communication section which is configured to perform high-speed communication, which is faster than the proximity
communication, with a second device which is configured to reproduce the audio data;

a storage section in which authentication information for authenticating the first device is stored; and
a control section which is configured to authenticate the first device by using the authentication information when the second
proximity communication section starts communication with the first proximity communication section of the first device, and
which is configured to relay communication between the first device and the second device by using the second proximity communication
section and the high-speed communication section in response to the authentication being successful, wherein

when the communication between the first device and the second device is relayed by the third device, a control section of
the first device transmits, to the second device via the third device, at least one of operation information indicating an
operation state at a time when the communication between the first device and the second device is relayed by the third device
and setting information indicating a function setting state at the time,

when receiving the at least one of the operation information and the setting information, a control section of the second
device starts operation based on the received information, and

the control section of the first device stops operation based on the information transmitted to the second device.

US Pat. No. 9,412,113

PERFORMANCE DATA SEARCH USING A QUERY INDICATIVE OF A TONE GENERATION PATTERN

Yamaha Corporation, Hama...

1. An apparatus for searching through a first non-transitory storage medium for searched-out result part performance data
matching an input search query, the first non-transitory storage medium storing therein a plurality of performance data sets
each comprising part performance data of one or more performance parts, each of the one or more performance parts being associated
with one performance part from among a plurality of different candidate parts of an ensemble, said apparatus adapted to communicate
with an operable input device, said apparatus comprising:
a second non-transitory processor-readable storage medium adapted to store instructions:
a processor, when executing the instructions, adapted to:
determine a style of operation performed on the input device;
identify, on the basis of the determined style of operation, at least one of the different candidate performance parts as
a search-object performance part;

acquire a searching query pattern from the input search query as a search-object query pattern; and
search the first non-transitory storage medium on the basis of both the search-object performance part and the search-object
query pattern, for the searched-out result part performance data matching the input search query, wherein the searched-out
result part performance data matches the identified performance part and matches the acquired searching query pattern.

US Pat. No. 9,379,831

ACOUSTIC CONTROLLER

Yamaha Corporation, Hama...

1. An acoustic controller comprising a housing comprising: an upper cover; a lower casing constituted by a shielding member;
and a lower cover mounted on an opposite side of the lower casing from the upper cover,
the lower casing partitioning an interior of the housing into (i) an upper space defined by a lower-side surface of the upper
cover and an upper-side surface of the lower casing and (ii) a lower space defined by a lower-side surface that is opposite
the upper-side surface of the lower casing and an upper-side surface of the lower cover,

a first circuit board being disposed in the upper space and being interposed between the lower-side surface of the upper cover
and the upper-side surface of the lower casing, a second circuit board being disposed in the lower space and being interposed
between the lower-side surface of the lower casing and the upper-side surface of the lower cover.

US Pat. No. 9,318,085

AUTOMATIC PLAYER MUSICAL INSTRUMENT, AUTOMATIC PLAYING SYSTEM INCORPORATED THEREIN AND OVERHEAT PROTECTOR FOR AUTOMATIC PLAYING SYSTEM

Yamaha Corporation, Hama...

1. An automatic playing system of the type that operates a mechanical tone generator operable through a plurality of solenoid-operated
actuators that have a critical temperature corresponding to an overheat state at which said actuators are damaged, comprising:
an automatic player responsive to pieces of music data expressing a performance so as to produce said driving signal expressed
as a variable electric current having a mean current value on the basis of said pieces of music data and selectively supplying
said driving signal to said plural solenoid-operated actuators and

an overheat protector for preventing said plural solenoid-operated actuators from overheating, the overheat protector having:
a temperature sensor provided in the vicinity of said plural solenoid-operated actuators, and producing a temperature detecting
signal representative of an environmental temperature around said plural solenoid-operated actuators in both of said energized
state and non-energized state; and

an information processor connected to said temperature sensor and connected to said automatic player to obtain said mean current
value,

wherein the information processor has read-write memory and is programmed to periodically populate a table stored in said
memory to store, for each of a plurality of solenoids, the mean current value associated with that solenoid-operated actuator;

said information processor is further programmed to periodically calculate and store in said table, for each of said plurality
of solenoid-operated actuators, an increment of temperature value indicative of the temperature rise attributable to the present
current in that solenoid-operated actuators as represented by said stored mean current value;

said information processor is further programmed to periodically calculate for each of said plurality of solenoid-operated
actuators a temperature rise value based on the accumulation of present and past calculated increment of temperature values
for that solenoid-operated actuators;

said information processor is further programmed to reduce the calculated temperature rise value, for each of said plurality
of solenoid-operated actuators, by a temperature drop value that corresponds to the heat loss during both energized and non-energized
states of a solenoid-operated actuator and thereby calculate an adjusted temperature rise value;

said information processor is further programmed to read a stored data value indicative of ambient temperature in the vicinity
of said plurality of solenoid-operated actuators and to add said ambient temperature to the adjusted temperature rise value
and thereby calculate an ambient-adjusted operating temperature for each of said plurality of solenoid-operated actuators;

said information processor is further programmed to compare at least one of the ambient-adjusted operating temperature for
each of said plurality of solenoids with said critical temperature and based on said comparison to inhibit operation of said
plurality of solenoid actuators if said at least one of said plurality of solenoid actuators is in said overheat state.

US Pat. No. 9,281,795

ACOUSTIC SIGNAL PROCESSING APPARATUS

Yamaha Corporation, Hama...

1. An acoustic signal processing apparatus which is configured to receive an input acoustic signal and to output an output
acoustic signal, the acoustic signal processing apparatus comprising:
a band separation portion for separating the input acoustic signal into a high frequency component, a middle frequency component
and a low frequency component;

a first level control portion for controlling a level of the high frequency component in accordance with a first control signal
to output the controlled high frequency component;

a second level control portion which controls a level of the low frequency component in accordance with a second control signal
to output the controlled low frequency component;

a mixing portion for mixing the high frequency component output from the first level control portion, the middle frequency
component output from the band separation portion and the low frequency component output from the second level control portion
to output a mixed signal;

a first control signal generation portion which is configured to detect a volume level of the mixed signal to generate the
first control signal in accordance with the detected volume level; and

a second control signal generation portion which is configured to detect a volume level of a low frequency component of the
mixed signal to generate the second control signal in accordance with the detected volume level.

US Pat. No. 9,148,730

ELECTROSTATIC SPEAKER

Yamaha Corporation, Hama...

1. An electrostatic speaker comprising:
an oscillator formed of a sheet-like member and having conductivity and flexibility;
a first cushioning material layer and a second cushioning material layer, each formed of a sheet-like member and having insulation
property, air permeability and elasticity;

a first electrode and a second electrode, each formed of a sheet-like member and having conductivity, air permeability and
flexibility; and

a first cover layer and a second cover layer, each formed of a sheet-like member and having insulation property, wherein
the oscillator is disposed between the first cushioning material layer and the second cushioning material layer,
the first cushioning material layer is disposed between the oscillator and the first electrode, and the second cushioning
material layer is disposed between the oscillator and the second electrode,

the first electrode is disposed between the first cushioning material layer and the first cover layer, and the second electrode
is disposed between the second cushioning material layer and the second cover layer,

a laminated body includes a plurality of layers including at least the first cover layer and the second cover layer,
the laminated body includes: a first region including an outer edge end of the laminated body; and a second region inside
the first region,

in the second region, two adjacent layers of the plurality of layers included in the laminated body are fixed to each other,
and

strength at the outer edge end in the first region is higher than strength in the second region.

US Pat. No. 9,147,388

AUTOMATIC PERFORMANCE TECHNIQUE USING AUDIO WAVEFORM DATA

Yamaha Corporation, Hama...

1. An automatic performance apparatus comprising:
a storage section configured to store therein: waveform data; reference position information indicative of reference positions,
in the waveform data, corresponding to reference timing specifying a plurality of predetermined time points within a predetermined
time length of the waveform data; and correction position information indicative of correction positions in the waveform data
that are different from the reference positions;

a reproduction section configured to reproduce the waveform data, stored in said storage section, in accordance with the passage
of time;

a measurement section configured to evaluate, in response to arrival of the reference timing, a deviation between a current
reproduction position of the waveform data currently reproduced by said reproduction section and the reference position indicated
by the reference position information; and

a correction section configured to, in response to the current reproduction position of the waveform data arriving at the
correction position indicated by the correction position information, correct the current reproduction position of the waveform
data, currently reproduced by said reproduction section, in accordance with the deviation evaluated by said measurement section.

US Pat. No. 9,099,075

STANDING WAVE ATTENUATION DEVICE

Yamaha Corporation, Hama...

1. A standing wave attenuation device comprising:
a first closed loop including an acoustic vibration input device which converts sound, including a standing wave component
occurring in a compartment of a vehicle wherein there are fluctuations in vibration directions and frequencies, into a sound
signal, a feedback comb filter which processes the sound signal to pass the standing wave component therethrough, and an acoustic
vibration output device which provides an output signal based on the processing result of the feedback comb filter;

a first phase adjustment part, involved in the first closed loop, which adjusts a phase difference, between an input phase
of the standing wave component input to the acoustic vibration input device and an output phase of the standing wave component
output from the acoustic vibration output device, to match an odd-numbered multiple of a prescribed value relating to a period
of the standing wave component;

a second closed loop involving the feedback comb filter with an adder which introduces the output signal of the acoustic vibration
input device into the second closed loop; and

a second phase adjustment part, involved in the second closed loop, which adjusts a phase difference, between a phase of the
standing wave component input to the adder via the acoustic vibration input device and a phase of the standing wave component
fed back to the adder via the second closed loop, to match an odd-numbered multiple of the prescribed value,

wherein the second phase adjustment part, involved in the second closed loop, includes a first delay element with a first
delay time corresponding to a difference between the total of transmission delays in the second closed loop and an odd-numbered
multiple of a half period of the standing wave component, a second delay element with a second delay time corresponding to
a difference between the first delay time of the first delay element and the odd-numbered multiple of the half period of the
standing wave component, and a coefficient multiplier for performing phase inversion, and wherein the first phase adjustment
part, involved in the first closed loop, includes a delay element with a delay time corresponding to a difference between
the total of transmission delays in the first closed loop and the odd-numbered multiple of the half period of the standing
wave component.

US Pat. No. 9,076,491

AUDIO DATA INPUTTING APPARATUS AND AUDIO DATA OUTPUTTING APPARATUS

Yamaha Corporation, Hama...

1. An audio data outputting apparatus for receiving, from a host apparatus at predetermined frame periods, audio data supplied
via a communication bus, performing processing, and then outputting the audio data, the audio data outputting apparatus comprising:
a receiving portion which has a first-in, first-out reception buffer, and performs, in accordance with a request for output
transmitted from the host apparatus to the audio data outputting apparatus via the communication bus at the predetermined
frame periods, a receiving operation of receiving a plurality of samples of audio data for a plurality of channels transmitted
from the host apparatus via the communication bus, and writing the received audio data for the channels into the reception
buffer;

a reproducing portion which has a first-in, first-out reproduction buffer and performs a reproducing operation of reading
out one sample of the audio data for the channels stored in the reproduction buffer to output the read data at predetermined
sampling periods;

a processor which controls at least part of the audio data outputting apparatus; and
a controller which controls respective operations of the receiving portion and the reproducing portion in accordance with
an instruction from the processor, the processor

providing, when receiving, from the host apparatus via the communication bus, a parameter relating to audio data which is
to be received, the parameter to the controller; and

instructing, when receiving, from the host apparatus via the communication bus, an instruction to start output of audio data,
the controller to start operating;

wherein the controller is configured for clearing, in accordance with the instruction from the processor to start operating,
the reception buffer and the reproduction buffer, enabling the receiving operation of the receiving portion, and stopping
the reproducing operation of the reproducing portion, and thereafter at the predetermined frame periods,

transferring, if the receiving portion has received audio data with the reproducing operation of the reproducing portion being
stopped, the received audio data from the reception buffer to the reproduction buffer, and instructing, when audio data stored
in the reproduction buffer reaches a threshold amount, the reproducing portion to start the reproducing operation;

transferring, if the receiving portion has received audio data with the reproducing portion being in the reproducing operation,
the received audio data from the reception buffer to the reproduction buffer;

stopping, if the receiving portion is not receiving audio data, the reproducing operation of the reproducing portion; and
stopping, if the receiving portion has received audio data with the reproduction buffer being full or short of data, the reproducing
operation of the reproducing portion, clearing audio data stored in the reproduction buffer, and transferring the received
audio data from the reception buffer to the reproduction buffer as an automatic recovery process.

US Pat. No. 9,613,635

AUTOMATED PERFORMANCE TECHNOLOGY USING AUDIO WAVEFORM DATA

Yamaha Corporation, Hama...

1. An automatic performance apparatus comprising:
a storage section storing waveform data of a music performance based on a desired reference tempo;
an acquisition section configured to acquire information designating a variable performance tempo;
a determination section configured to determine, in accordance with relationship between the performance tempo and the reference
tempo, whether reproduction of the waveform data is to be limited or not; and

an audio reproduction section configured to reproduce the waveform data stored in said storage section, said audio reproduction
section performing, in order to reproduce the waveform data in accordance with the performance tempo, time axis expansion/contraction
control on the waveform data to be reproduced in accordance with the relationship between the performance tempo and the reference
tempo, wherein, when the determination section has determined that the reproduction of the waveform data is to be limited,
the audio reproduction section performs one of an operation for stopping the reproduction of the waveform data and an operation
for continuing the reproduction of the waveform data with a resolution of a reproduction process lowered.

US Pat. No. 9,591,400

INSTALLATION STRUCTURE FOR ACOUSTIC TRANSDUCER

Yamaha Corporation, Hama...

1. An installation structure for an acoustic transducer configured to operate in accordance with an audio signal for thereby
vibrating a vibrated body in a first direction, so as to permit the vibrated body to generate sounds, comprising:
a magnetic-path forming portion fixedly disposed relative to a fixedly supporting portion and forming a magnetic path;
a movable unit having an electromagnetic coupling portion electromagnetically coupled to the magnetic-path forming portion,
the movable unit being configured to vibrate in the first direction when the electromagnetic coupling portion is driven by
the magnetic-path forming portion in response to a drive signal based on the audio signal;

a connector fixed to the vibrated body, the connector connecting the movable unit to the vibrated body for transmitting vibration
of the movable unit to the vibrated body; and

at least two restricting mechanisms fixedly disposed relative to the fixedly supporting portion and configured to restrict
a movement of the movable unit in a second direction that intersects the first direction.

US Pat. No. 9,497,542

SIGNAL PROCESSING SYSTEM AND SIGNAL PROCESSING METHOD

YAMAHA CORPORATION, Hama...

1. A signal processing system comprising:
a plurality of microphone units configured to be connected in series;
each of the plurality of microphone units having a microphone for picking up sound, a temporary storage memory, and a processing
section for processing the sound picked up by the microphone;

a host device configured to be connected to at least one of the microphone units,
the host device having a non-volatile memory in which a sound signal processing program for the microphone units is stored;
the host device configured to transmit the sound signal processing program read from the non-volatile memory to each of the
plurality of microphone units; and

each of the plurality of microphone units configured to temporarily store the sound signal processing program in the temporary
storage memory,

wherein the processing section performs a process corresponding to the sound signal processing program temporarily stored
in the temporary storage memory and transmits the processed sound to the host device.

US Pat. No. 9,466,440

SWITCH DEVICE WITH ERRONEOUS OPERATION PREVENTER AND THE ERRONEOUS OPERATION PREVENTER

Yamaha Corporation, Hama...

1. A switch device with an erroneous operation preventer, comprising:
a switch main body attached to an opening portion of a wall and having a switch member pivotally supported by a shaft that
is parallel to the wall, the switch main body being configured such that pushing a first end portion of the switch member
causes a second end portion thereof to protrude from the wall and such that an on state and an off state of the switch main
body are changed by pushing one of the first end portion and the second end portion of the switch member; and

an erroneous operation preventer configured to prevent an erroneous operation on the first end portion of the switch member,
the first end portion taking a protruding posture in which the first end portion protrudes from the wall when the switch Main
body is in one of the on state and the off state,

wherein the switch member is supported by the shaft in a casing fixed to the opening portion,
wherein the casing has a flange portion disposed around a periphery of the switch member and engaged with a periphery of the
opening portion of the wall,

wherein the erroneous operation preventer is formed in a frame shape and disposed outwardly of the flange portion, and
wherein the erroneous operation preventer has a pair of side protective walls that extend in a longitudinal direction of the
switch member so as to cover a surface of the flange portion on both sides of the first end portion of the switch member.

US Pat. No. 9,385,824

DIGITAL MIXER

YAMAHA CORPORATION, Hama...

1. A digital mixer comprising:
a signal processor comprising:
a plurality of input channels that receive audio signals input to the signal processor;
a first bus that mixes the input audio signals supplied thereto from the plurality of input channels; and
a plurality of second buses that mix audio signals supplied thereto from the plurality of input channels; and
a memory device storing, for each of the plurality of input channels, a first parameter indicating an ON/OFF state and a second
parameter indicating a send level,

wherein each of the plurality of input channels includes:
at least one sound controller that controls sound characteristics of one audio signal, among the input audio signals, input
thereto;

a first controller that controls supply of the controlled one audio signal to the first bus; and
a second controller that controls supply of the controlled one audio signal to at least one of the second buses based on the
stored first and second parameters of the input channel to be supplied to the at least one second bus, and

wherein the second controller:
controls a level of the controlled one audio signal supplied to the at least one second bus, in accordance with the send level
indicated by the stored second parameter of the input channel to be supplied to the at least one second bus and supplies the
level controlled one audio signal to the at least one second bus when the stored first parameter of the input channel to be
supplied to the at least one second bus indicates the ON state; and

supplies the controlled one audio signal to the at least one second bus, without controlling the level thereof, when the stored
first parameter of the input channel to be supplied to the at least one second bus indicates the OFF state.

US Pat. No. 9,367,284

RECORDING DEVICE, RECORDING METHOD, AND RECORDING MEDIUM

YAMAHA CORPORATION, Hama...

1. A recording device, comprising:
a recording unit configured to:
perform recording; and
record recording data indicating a recorded content in a recording medium; and
a stop control unit configured to:
stop the recording in accordance with a recording stop instruction;
and restart the recording in accordance with a recording restart instruction after reproducing a trailing part of the recorded
content that is recorded before the stop,

wherein, in a case where the recording is restarted, the recording data includes information indicating a timing at which
the recording is restarted.

US Pat. No. 9,344,799

AUDIO APPARATUS

Yamaha Corporation, Hama...

1. An audio apparatus comprising:
a receiver which receives audio data transmitted by a broadcast method directly from an external apparatus;
a sound emitter which performs sound emission of the audio data received by the receiver;
a detector which detects connection with other apparatus which can receive the audio data transmitted by the broadcast method
directly from the external apparatus;

a generator included with the receiver which generates sound emission control information relating to sound emission of the
other apparatus when the detector detects the connection with the other apparatus; and

a transmitter which transmits the sound emission control information generated by the generator to the other apparatus,
wherein the sound emission control information includes information on at least one of band and volume.

US Pat. No. 9,294,854

INFORMATION PROCESSOR, AUDIO PROCESSOR, AUDIO PROCESSING SYSTEM AND PROGRAM

YAMAHA CORPORATION, Hama...

1. An audio processor connectable to a sound emission device that emits a sound according to supplied data, the audio processor
comprising:
an acquisition unit having an interface configured to acquire:
processed sound data, which is original sound data having been processed according to a content of processing defined so that
determined first sound is emitted under a standard sound emission condition, wherein the processed sound data is acquired
in association with the sound emission device; and

a control signal including at least one of a parameter indicating the content of processing on the original sound data or
information indicating a configuration of the processed sound data corresponding to the original sound data processed using
the parameter;

a connection unit having a detector configured to detect a device sound emission condition of the sound emission device connected
to the audio processor; and

a control unit connected to a memory and configured to execute:
a sound emission condition acquiring task that acquires, from the connection unit, the device sound emission condition based
on the detected device sound emission condition from the detector;

a processed sound data acquiring task that acquires the processed sound data from the acquisition unit;
a control signal acquiring task that acquires the control signal from the acquisition unit;
an identifying task that identifies a correction content of the processed sound data based on (i) a difference between the
acquired device sound emission condition and the standard sound emission condition, (ii) the control signal acquired by the
control signal acquiring task, and (iii) the processed sound data acquired in association with the sound emission device by
the processed sound data acquiring task to generate a second sound, which is to be emitted by the sound emission device under
the acquired device sound emission condition, close to the determined first sound or a third sound defined to be different
from the determined first sound;

a correction task that corrects the processed sound data according to the correction content identified by the identifying
task; and

a supplying task that supplies the processed sound data corrected by the correcting task to the sound emission device via
the connection unit.

US Pat. No. 9,135,909

SPEECH SYNTHESIS INFORMATION EDITING APPARATUS

Yamaha Corporation, Hama...

1. A speech synthesis information editing apparatus comprising:
a phoneme storage unit configured to store phoneme information that designates a duration of each phoneme of speech to be
synthesized;

a feature storage unit configured to store feature information that designates a time variation in a feature of the speech;
an expansion/compression rate storage unit configured to store a phoneme expansion/compression rate that is set for each phoneme;
an edition processing unit configured to change a duration of each phoneme designated by the phoneme information in accordance
with an expansion/compression degree that is provided for each phoneme, wherein

the expansion/compression degree is obtained according to the feature designated by the feature information for the phoneme
and the phoneme expansion/compression rate that corresponds to the phoneme; and

a display control unit configured to display a phoneme indicator having a length set according to the duration of each phoneme
designated by the phoneme information, and configured to update the displayed length of the phoneme indicator based on the
duration of each phoneme changed by the edition processing unit.

US Pat. No. 9,117,436

SOUND PROCESSING APPARATUS AND SOUND PROCESSING METHOD

YAMAHA CORPORATION, (JP)...

1. A sound processing apparatus comprising:
an inputting section that inputs a sound signal;
an analyzing section that analyzes the input sound signal;
an analysis result storing section that stores the analysis result for a predetermined time period;
a storing section that stores a general-purpose masking sound;
a masking sound producing section that, based on a result of the analysis by the analyzing section, processes the general-purpose
masking sound stored in the storing section to produce an output masking sound;

an outputting section that outputs the output masking sound,
wherein the masking sound producing section compares the result of the analysis by the analyzing section with the analysis
result stored in the analysis result storing section, and when a different analysis result is calculated therebetween, stops
the production of the output masking sound that is based on the result of the analysis by the analyzing section.

US Pat. No. 9,111,514

DELAYED REGISTRATION DATA READOUT IN ELECTRONIC MUSIC APPARATUS

Yamaha Corporation, Hama...

1. An electronic music apparatus comprising:
a storage section storing a plurality of sets of registration data, a first set of registration data of the plurality of sets
of registration data comprising a plurality of tone setting parameters, wherein:

at least a first tone setting parameter of the plurality of tone setting parameters is associated with first readout timing
data,

at least a second tone setting parameter of the plurality of tone setting parameters is associated with second readout timing
data, and

the first set of registration data is used for setting a plurality of parameters of an electronic musical instrument;
an instruction section configured to instruct readout of the first set of registration data from said storage section; and
a control section, in response to an instruction issued by said instruction section at a first time for reading out the first
set of registration data:

setting, at a first readout timing, at least a first parameter of the plurality of parameters of the electronic musical instrument
based on at least the first tone setting parameter associated with the first readout timing data, and

setting, at a second readout timing, later than the first readout timing, at least a second parameter of the plurality of
parameters of the electronic musical instrument based on at least the second tone setting parameter associated with the second
readout timing data, wherein the second readout timing is based on the second readout timing data.

US Pat. No. 9,087,502

SOUND PROCESSING APPARATUS AND SOUND PROCESSING SYSTEM

YAMAHA CORPORATION, (JP)...

1. A sound processing apparatus for communicating with a terminal apparatus through a communication network, wherein the terminal
apparatus generates a processing request for a processing file, which is divided into a plurality of waveform data, and successively
transmits the plurality of waveform data, the sound processing apparatus comprising:
a communication device configured to:
successively receive the plurality of waveform data, each with the processing request from the terminal apparatus; and
successively transmit a response notification to the terminal apparatus in response to each of the received plurality of waveform
data;

a storage device; and
a sound processing control device configured to:
successively process each of the plurality of received waveform data and store the processed data in the storage device;
generate the response notification, which includes at least error information indicating presence or absence of an error relating
to a communication of the processing request, in response to the received processing request, for each received waveform data,

wherein the response notification further includes the processed data and data length information indicating a size of the
processed data when the processed data is stored in the storage device regardless of whether the error information includes
presence or absence of an error,

wherein the error information includes presence of an error when the processing request contains an error regardless of whether
any processed data is stored in the storage device, and

wherein the error information includes absence of an error even when the processed data for a currently received waveform
data is not yet processed and stored in the storage device, as long as the communication device successfully received the
processing request.

US Pat. No. 9,590,678

MANAGING INPUT/OUTPUT PORTS IN MIXER SYSTEM USING VIRTUAL PORT DATA

Yamaha Corporation, Hama...

1. A computer-implemented method for managing a plurality of ports in a first mixer system, the first mixer system comprising:
the plurality of ports each configured to input a signal or output a signal and to process the signal according to a parameter;
and a plurality of processing channels each configured to process a signal, the method comprising:
a step of maintaining, for each of the plurality of ports, real port data which includes a parameter for processing the signal;
a step of maintaining, for each of the plurality of processing channels, virtual port data which includes a parameter for
a port of the plurality of ports to be connected with the processing channel;

a step of connecting, in response to a given connection instruction, between a selected one of the plurality of ports and
a selected one of the plurality of processing channels;

a step of setting, in response to the given connection instruction, a value of the real port data maintained for the selected
port connected with the selected processing channel to a value of the virtual port data maintained for the selected processing
channel;

a step of accepting an operation to change a value of the real port data maintained for the selected port;
a step of placing the selected port under control of the first mixer system; and
a step of releasing a port unconnected with the selected processing channel from control of the first mixer system.

US Pat. No. 9,571,040

AUDIO AMPLIFIER AND POWER SUPPLY VOLTAGE SWITCHING METHOD

Yamaha Corporation, Hama...

1. An audio amplifier comprising:
an amplifier configured to amplify an input audio signal in a range of a power supply voltage;
a power supply configured to generate a plurality of power supply voltages;
a relay configured to select one of the power supply voltages as a power supply voltage to be supplied to the amplifier;
a determiner configured to determine whether a condition for switching from one selected power supply voltage to another power
supply voltage to be selected by the relay is satisfied;

a detector configured to detect a period of no audio signal in the input audio signal which is equal to or greater than a
required time to switch the relay; and

a controller configured to switch from the one selected power supply voltage to the another power supply voltage by the relay
if said condition is satisfied and said period of no audio signal is detected, wherein

the another power supply voltage has a magnitude other than 0V.

US Pat. No. 9,570,054

MUSICAL BAR FOR MUSICAL INSTRUMENT

Yamaha Corporation, Hama...

1. A musical bar for a musical instrument, the musical bar comprising:
a striking surface; and
a back surface which is a back side of the musical bar from the striking surface,
wherein when the striking surface is struck, the musical bar is vibrated to produce a musical tone with a unique pitch as
a pitch of a fundamental tone,

wherein an insertion hole is formed in the musical bar so as to extend substantially in a widthwise direction thereof, and
a supporter via which the musical bar is supported by the musical instrument is inserted in the insertion hole, and

wherein, in addition to the insertion hole, a recess is formed, in the longitudinal direction, in an area including a node
of vibration of the fundamental tone.

US Pat. No. 9,570,058

AUDIO SIGNAL PROCESSING DEVICE AND PARAMETER ADJUSTING METHOD

Yamaha Corporation, Hama...

1. An audio signal processing device comprising:
a channel processor having a plurality of channels each of which performs signal processing on an audio signal based on a
value of a parameter by channel;

a channel strip module having a plurality of channel strips, one channel strip having controls including at least one setting
control and one edit button, and the plurality of channel strips being divided into a first group and a second group;

a channel parameter adjustor for allocating any of the channels of the channel processor to the respective channel strips
of the channel strip module, and adjusting, in accordance with an operation of a control other than the setting control and
the edit button of the channel strip, a value of a parameter of a channel allocated to the channel strip;

a first display controller for, in accordance with operations of the edit buttons of any two channel strips, controlling a
predetermined display to display a two-channel screen to display respective pluralities of parameters of two channels allocated
to the two channel strips;

a first parameter adjustor for allocating each of a plurality of parameters of one channel of the two channels displayed on
the two-channel screen to the setting controls of the respective channel strips of the first group of the channel strip module,
allocating each of a plurality of parameters of another channel of the two channels displayed on the two-channel screen to
the setting controls of the respective channel strips of the second group of the channel strip module, and adjusting values
of the parameters allocated to the respective setting controls in accordance with operations on the respective setting controls;

a third display controller for, in accordance with an operation of the edit button of any one channel strip, controlling the
display to display a one-channel screen to display a plurality of parameters of one channel allocated to the one channel strip;
and

a third parameter adjustor for allocating each of a plurality of parameters of the one channel displayed on the one-channel
screen to the setting controls of the respective channel strips of the first and second groups of the channel strip module,
and adjusting values of the parameters allocated to the respective setting controls in accordance with operations of the respective
setting controls.

US Pat. No. 9,502,004

SUPPORT ASSEMBLY AND KEYBOARD APPARATUS

Yamaha Corporation, Hama...

1. A support assembly comprising:
a support rotatably disposed with respect to a frame;
a repetition lever hinge mounted to the support configured to hinge bendably from a straight line to a curve line; and
a repetition lever supported by the repetition lever hinge and rotatably disposed with respect to the support, wherein
the repetition lever has a contact surface and the contact surface contacts a hammer shank roller provided to a hammer shank
for rotating a hammer, and

the repetition lever hinge is mounted to the support in a mounting direction that crosses with a tangent-line direction of
a line tangent to the hammer shank roller at the contact between the hammer shank roller and the contact surface.

US Pat. No. 9,438,220

STATE DETECTING CIRCUIT, KEY-PRESS DETECTOR, AND MUSICAL INSTRUMENT

YAMAHA CORPORATION, Hama...

1. A state detecting circuit comprising:
a plurality of switch circuits, each of the plurality of switch circuits comprising at least one switch which switches between
an ON state and an OFF state in response to a change in a physical amount which is a target of detection, each of the plurality
of switch circuits configured to output a state signal which changes according to an ON/OFF state of the switch included in
the switch circuit itself,

wherein the plurality of the switch circuits include one or a plurality of three-state switch circuit comprising two switches
in which thresholds of the physical amount at which the switch switches between the ON state and the OFF state are different
from each other, configured to invert the state signal when the physical amount exceeds a smaller one of the thresholds of
the two switches, and further configured to invert the state signal when the physical amount exceeds a larger one of the thresholds
of the two switches,

wherein the plurality of switch circuits include at least one two-state switch circuit having a threshold between the thresholds
of the two switches of the three-state switch circuit, and configured to invert the state signal when the physical amount
exceeds the threshold.

US Pat. No. 9,435,926

LIGHT GUIDE BODY, RELAY APPARATUS, AND SPEAKER APPARATUS

Yamaha Corporation, Hama...

1. A relay apparatus comprising:
a housing;
a light signal receiving unit, provided on a first face of the housing, and receiving a light signal from an outside of the
housing;

a light emitting unit emitting light depending on the light signal received by the light signal receiving unit, and
a light guide body including a long light guide portion, the light guide body comprising:
an incident portion which is provided at a first end portion in a longitudinal direction of the light guide portion, and through
which light enters;

a first outgoing portion which is adapted to irradiate the light guided by the light guide portion from a first portion provided
along the longitudinal direction to an outside; and

a second outgoing portion which is provided at a second end portion in the longitudinal direction of the light guide portion,
and which is adapted to irradiate the light to be guided toward the second end portion to the first portion, wherein

the light guide body is provided on a second face different from the first face of the housing, and
the light emitted by the light emitting unit enters the incident portion.

US Pat. No. 9,311,902

METHOD OF FABRICATING BOW STICK OF STRINGED INSTRUMENT AND BOW STICK OF STRINGED INSTRUMENT

Yamaha Corporation, Hama...

1. A method of fabricating a hollow bow stick body which is used in a stringed instrument and which is formed of fiber-reinforced
plastics, the method comprising:
winding a prepreg, in which a fiber is impregnated with a resin, on a mandrel having a diameter which gradually decreases
toward a distal end to form a semi-fabricated product;

placing the semi-fabricated product and the mandrel, into a mold;
molding the semi-fabricated product in a shape corresponding to a cavity formed between the mold and the mandrel by heating
and pressurizing the semi-fabricated product in the mold to form a molded product;

removing the mandrel from the molded product to acquire a long and hollow bow stick body; and
adjusting at least one of a weight distribution, a center of gravity, and a weight of the bow stick body by changing a shape
of the cavity using the mandrel of which the diameter or a diameter variation is gradually changed in an axis direction.

US Pat. No. 9,240,174

ELECTRIC STRINGED MUSICAL INSTRUMENT AND METHOD OF DESIGNING THE SAME

Yamaha Corporation, Hama...

1. An electric stringed musical instrument comprising:
a bridge;
a body for supporting a string via the bridge;
a pickup sensor for detecting a vibration which has propagated from the string and outputting an electric signal as a function
thereof;

a supporter having a spring structure which supports the bridge with respect to the body; and
a damper for damping a vibration of the bridge, the damper being constituted by an elastic member and a weight fixed to the
elastic member, the damper being spaced apart from the string such that the damper does not contact the string, the damper
being directly mounted on at least one of the supporter and the bridge.

US Pat. No. 9,214,914

AUDIO DEVICE CONTROL PROGRAM, MOBILE TELEPHONE, RECORDING MEDIUM, AND CONTROL METHOD

Yamaha Corporation, Hama...

1. A non-transitory storage medium for storing therein an audio device control program that causes a control unit of a mobile
telephone equipped with a telephone communication unit to function as:
an operation detector that detects a user operation;
an incoming call detector that detects an incoming telephone call to the telephone communication unit;
a command transmitter that communicates with an audio device that outputs a reproduced sound, wherein the command transmitter
transmits a command message containing control contents corresponding to the user operation to the audio device when the operation
detector detects the user operation, and transmits a command message for controlling the reproduced sound to the audio device
when the incoming call detector detects the incoming telephone call; and

an operation state obtainer that obtains an operation state of the audio device, the operation state including an audio source
selected in the audio device, wherein

the command transmitter transmits a command message containing control contents corresponding to the audio source selected
in the audio device at that time when the incoming call detector detects the incoming telephone call.

US Pat. No. 9,142,203

MUSIC DATA GENERATION BASED ON TEXT-FORMAT CHORD CHART

YAMAHA CORPORATION, (JP)...

1. A music data generation apparatus comprising:
a processor; and
a memory storing computer code that, when executed by the processor, causes the apparatus to:
acquire text-based data representative of a chord progression;
acquire musical meter information indicative of a musical meter of music data to be generated;
extract individual chords and bar lines from the acquired text-based data; and
generate chord progression information by allocating in-bar relative time positions to the extracted individual chords in
accordance with the musical meter indicated by the acquired musical meter information and the extracted bar lines.

US Pat. No. 9,099,069

SIGNAL PROCESSING DEVICE

Yamaha Corporation, Hama...

1. A signal processing device comprising:
an acquire part which is configured to acquire an audio signal from a musical instrument;
a calculation part which is configured to calculate and adjust a transfer characteristic, representing a resonance characteristic
of the musical instrument, based on a test signal and the audio signal which is fed back from the musical instrument receiving
a test sound corresponding to the test signal, wherein the signal processing device is connected to a speaker which is configured
to produce the test sound based on the test signal;

a memory configured to store a first transfer characteristic, corresponding to the transfer characteristic calculated by the
calculation part, and at least one second transfer function which is measured in advance; and

a parameter setting part which is configured to set a parameter based on the first transfer characteristic and the at least
one second transfer characteristic read from the memory.

US Pat. No. 9,088,844

SOUND IMAGE LOCALIZATION CONTROL APPARATUS

Yamaha Corporation, Hama...

1. A sound image localization control apparatus comprising:
a distributing unit configured to produce first and second audio signals which have a time difference, from an input audio
signal, and configured to supply the first audio signal to one of a plurality of speakers, the distributing unit including:

a delaying unit configured to provide a delay to one of the first and second audio signals to provide the time difference;
and

gain controllers, gains in the gain controllers corresponding to the first and second audio signals, respectively; and
a virtual-sound source processing unit configured to produce a virtual-sound source signal for localizing a sound source at
a virtual sound source position in a space where the plurality of speakers are disposed, which is to be supplied to the plurality
of speakers, based on the second audio signal, wherein

a reference value is one of the gains in the gain controllers in a case where a sound image is localized between a position
of one of the plurality of speakers and a position which is the virtual sound source position; and

the distributing unit determines the gains in the gain controllers so that one of the gains in the gain controllers corresponding
to a succeeding one of the first and second audio signals to which the delay is provided has a value larger than the reference
value.

US Pat. No. 10,134,374

SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING APPARATUS

YAMAHA CORPORATION, Hama...

1. A signal processing method comprising the steps of:specifying a first section among a duration of a singing voice of a music based on a temporal change of a pitch of singing voice data representing the duration of the singing voice of the music or a temporal change of a pitch in a score of the music; and
modifying a first part of the singing voice data representing the first section of the singing voice of the music, wherein a temporal change of at least one of the pitch, a volume, and a spectral envelope of the first part of the singing voice data is modified based on the first part of the singing voice data to be modified in the modifying step.

US Pat. No. 10,038,416

SELF-OSCILLATING CLASS D AMPLIFIER

YAMAHA CORPORATION, Hama...

1. A self-oscillating class D amplifier comprising:an integration circuit configured to integrate an input signal and output a result of the integration as an integrated signal;
a comparator, having a non-inverting input terminal being grounded and an inverting input terminal, and configured to receive the integrated signal at the inverting input terminal and output a pulse width modulation signal by comparing a ground voltage of the grounded non-inverting input terminal and a voltage of the inverting input terminal;
a switching circuit configured to power-amplify the pulse width modulation signal output from the comparator;
a low-pass filter configured to extract an amplified output signal from the power-amplified pulse width modulation signal;
a first feedback circuit configured to feed back the output signal of the low-pass filter to the inverting input terminal of the comparator; and
a second feedback circuit configured to feed back the output signal of the low-pass filter to the integration circuit.
US Pat. No. 9,909,234

CELLULOSE FIBER, COMPOSITE MATERIAL, AND METHOD OF PRODUCING THE CELLULOSE FIBER

YAMAHA CORPORATION, Hama...

1. A cellulose fiber comprising:
a matrix phase; and
needle-shaped phases comprised in the matrix phase,
wherein the matrix phase comprises a cellulose II crystal structure,
wherein the needle-shaped phases comprise a cellulose I crystal structure, and
wherein the needle-shaped phases are oriented along an axial direction.

US Pat. No. 9,805,701

PARAMETER CONTROLLER AND METHOD FOR CONTROLLING PARAMETER

YAMAHA CORPORATION, Hama...

1. A parameter controller configured to control a parameter used by a tone generator unit to generate an audio signal, the
parameter controller comprising:
a manual control device; and
a controller configured to:
set, according to an operation of the manual control device of one increase and decrease control or one combination of an
increase control and a decrease control, a first effect or a second effect that is different from the first effect, and a
degree of effect thereof to be given to the audio signal depending on a position of the manual control device; and

change, when the controller detects an operation of the manual control device to further decrease the degree of effect of
the first effect to be given to the audio signal to less than zero, from the first effect to the second effect to be given
to the audio signal.

US Pat. No. 9,770,572

DEVICE, METHOD, MEDIUM FOR GUIDING A USER TO A DESIRED SLEEP STATE

Yamaha Corporation, Hama...

1. A device, comprising:
at least one processor;
at least one memory device that stores a plurality of instructions, which when executed by the at least one processor, causes
the at least one processor to:

acquire sleep depth data indicating a sleep depth of a user in a state in which a sound is being emitted;
generate a plurality of pieces of influence data indicating an influence exerted on a variation with time of the sleep depth
of the user by the sound based on a variation with time of the sleep depth indicated by the acquired sleep depth data and
a variation with time of the sleep depth serving as a reference relating to the user;

store the plurality of pieces of the influence data;
acquire sleep state data indicating a current sleep state of the user;
select at least one piece of sound data from among a plurality of pieces of sound data based on the sleep state data and the
plurality of pieces of the influence data that are respectively associated with the plurality of pieces of sound data that
indicates a plurality of pieces of sound; and

output the selected sound data to a sound emitting device.

US Pat. No. 9,613,607

KEYBOARD UNIT

YAMAHA CORPORATION, Hama...

1. A keyboard unit comprising:
a key;
at least one displacement member which is configured to be driven directly or indirectly with the key by a pressing operation
of the key to be moved in a forward stroke direction;

a detector including, as object detection sections, at least three detection sections including:
a detection section, a state of which becomes a state change detection state when detecting a change in a state of the key;
and

a detection section, a state of which becomes a state change detection state when detecting a change in a state of the displacement
member; and

a generator, in a case that states of all the object detection sections become the state change detection state in the forward
stroke of a key pressing operation, which is configured to obtain detection results of at least two sets of the detection
sections, each set including two object detection sections, which is configured to select at least one of the obtained detection
results of the at least two sets of the detection sections, and which is configured to generate sound generation indication
information based on the selected at least one of the detection results.

US Pat. No. 9,601,105

SOUND SYNTHESIZING APPARATUS AND METHOD, SOUND PROCESSING APPARATUS, BY ARRANGING PLURAL WAVEFORMS ON TWO SUCCESSIVE PROCESSING PERIODS

Yamaha Corporation, Hama...

1. A sound synthesizing apparatus comprising:
a waveform storage configured to store a plurality of unit waveforms extracted from different positions, on a time axis, of
a single sound waveform which indicates a voiced sound and is temporally continued, wherein each of the plurality of unit
waveforms is shorter in time length than the single sound waveform; and

one or more first circuits configured to implement the functionality of:
a waveform generator configured to generate, for each of a first processing period and a second processing period, a synthesized
waveform by arranging the plurality of unit waveforms on the time axis, wherein the second processing period is an immediately
succeeding processing period after the first processing period,

wherein, for the first processing period,
a first unit waveform for the first processing period and a second unit waveform for the first processing period are selected
from among the plurality of unit waveforms extracted from the single sound waveform, the second unit waveform for the first
processing period being different from the first unit waveform for the first processing period,

a plurality of instances of the first unit waveform for the first processing period is arranged in a first waveform series
for the first processing period so that intensities thereof increase with time in the first processing period,

a plurality of instances of the second unit waveform for the first processing period is arranged in a second waveform series
for the first processing period so that intensities thereof decrease with time in the first processing period,

the synthesized waveform for the first processing period is a sum of the first waveform series for the first processing period
and the second waveform series for the first processing period, the first waveform series for the first processing period
and the second waveform series for the first processing period being cross-faded in the synthesized waveform for the first
processing period, and

each of the first unit waveform for the first processing period and the second unit waveform for the first processing period
is shorter in time length than the single sound waveform,

wherein, for the second processing period,
a first unit waveform for the second processing period and a second unit waveform for the second processing period are selected
from among the plurality of unit waveforms extracted from the single sound waveform, the second unit waveform for the second
processing period being different from the first unit waveform for the second processing period,

a plurality of instances of the first unit waveform for the second processing period is arranged in a first waveform series
for the second processing period so that intensities thereof increase with time in the second processing period, and

a plurality of instances of the second unit waveform for the second processing period is arranged in a second waveform series
for the second processing period so that intensities thereof decrease with time in the second processing period,

the synthesized waveform for the second processing period is a sum of the first waveform series for the second processing
period and the second waveform series for the second processing period, the first waveform series for the second processing
period and the second waveform series for the second processing period being cross-faded in the synthesized waveform for the
second processing period, and

each of the first unit waveform for the second processing period and the second unit waveform for the second processing period
is shorter in time length than the single sound waveform.

US Pat. No. 9,535,102

TEST SIGNAL SUPPLYING DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT

Yamaha Corporation, Hama...

1. A test signal supplying device, comprising:
a first external terminal;
a second external terminal being applied with a predetermined electric potential;
an internal load;
a first terminal that is connected to the first external terminal through the internal load;
a second terminal that is connected to the first external terminal without passing through the internal load;
a test signal generating section that generates a test signal and supplies the test signal to the second terminal;
a detecting section that detects an amplitude of the test signal;
a controlling section that measures an impedance of a sound emitter connected to the first and second external terminals based
on the detected amplitude of the test signal; and

an amplifying section that amplifies a sound signal and outputs the amplified sound signal to the first terminal,
wherein the controlling section controls a gain of the amplifying section based on the measured impedance of the sound emitter;
and

wherein the internal load protects the sound emitter.

US Pat. No. 9,424,831

VOICE SYNTHESIZING HAVING VOCALIZATION ACCORDING TO USER MANIPULATION

Yamaha Corporation, Hama...

1. A voice synthesizing method comprising:
determining a manipulation position which is moved according to a user's manipulation for moving the manipulation position,
wherein the user's manipulation is made on a manipulation device;

generating, in response to an instruction to generate a voice in which a second phoneme follows a first phoneme, a voice signal
so that vocalization of the first phoneme starts before the moving manipulation position reaches a reference position and
that vocalization from the first phoneme to the second phoneme is made when the moving manipulation position reaches the reference
position; and

predicting an instruction time point when the moving manipulation position reaches the reference position on the basis of
a movement speed of the moving manipulation position.

US Pat. No. 9,412,352

RECORDING AUDIO IN ASSOCIATION WITH DISPLAY CONTENT

Yamaha Corporation, Hama...

1. A computer-implemented method comprising:
displaying, on a display device, display content representative of a temporal transition of a music performance;
recording input audio;
receiving, during recording of the input audio, a first user input designating a desired time position on the display content
displayed on the display device;

storing, into a storage device, a recording time of the input audio based on a time point at which the first user input has
been received and the time position on the display content designated by the first user input, in association with each other;
and

adding, to the display content displayed on the display device, a mark related to the time position designated by the first
user input.

US Pat. No. 9,373,314

INSTALLATION STRUCTURE FOR ACOUSTIC TRANSDUCER

YAMAHA CORPORATION, Hama...

1. An installation structure for an acoustic transducer configured to operate in accordance with an audio signal to vibrate
a vibrated body in a first direction, the installation structure comprising:
a magnetic-path forming portion forming a magnetic path;
a movable unit having an electromagnetic coupling portion electromagnetically coupled to the magnetic-path forming portion,
the movable unit being configured to vibrate in the first direction when the electromagnetic coupling portion is driven by
the magnetic-path forming portion in response to a drive signal based on the audio signal;

an attachment portion that attaches the magnetic-path forming portion to a fixed portion;
a connector connected to the vibrated body, the connector connecting the movable unit to the vibrated body fixedly in the
first direction for transmitting vibration of the movable unit to the vibrated body and having at least one contact surface
and a chuck member; and

a displacement permitting mechanism configured to, when the connector is displaced with respect to the fixed portion within
a predetermined range in an intersecting direction that intersects the first direction, permit electromagnetic coupling between
the magnetic-path forming portion and the electromagnetic coupling portion to be maintained and permit the vibration of the
movable unit to be transmitted to the vibrated body,

wherein the displacement permitting mechanism is provided at at least one of the movable unit or the connector,
wherein the movable unit comprises a rod member having a first end portion connected to the electromagnetic coupling portion,
and a second end portion connected to the connector and having a spherical portion,

wherein the displacement permitting mechanism comprises:
the spherical portion; and
the at least one contact surface held in contact with the spherical portion when the connector is displaced with respect to
the magnetic-path forming portion within the predetermined range in the intersecting direction, and

wherein the chuck member holds the spherical portion so that the spherical portion is held in contact with the at least one
contact surface.

US Pat. No. 9,117,432

APPARATUS AND METHOD FOR DETECTING CHORD

YAMAHA CORPORATION, (JP)...

1. A chord detection apparatus comprising:
a processor configured to execute:
a musical piece selecting task that selects a musical piece to be performed by a player;
a musical piece information retrieval task that retrieves musical piece information corresponding to the selected musical
piece;

a chord tendency information retrieval task that retrieves chord tendency information indicative of degrees of likelihood
or unlikelihood of chords appearing in the selected musical piece based on the retrieved musical piece information;

a musical performance data retrieval task that retrieves musical performance data of musical performance performed by the
player; and

a chord detection task that detects a chord based on the musical performance data retrieved by the musical performance data
retrieval task and the chord tendency information retrieved by the chord tendency information retrieval task.

US Pat. No. 9,087,501

SOUND SIGNAL ANALYSIS APPARATUS, SOUND SIGNAL ANALYSIS METHOD AND SOUND SIGNAL ANALYSIS PROGRAM

YAMAHA CORPORATION, (JP)...

1. A sound signal analysis apparatus comprising:
at least one non-transitory memory device;
at least one processor;
a sound signal input portion for inputting a sound signal indicative of a musical piece;
a tempo detection portion for detecting a tempo of each of sections of the musical piece by use of the input sound signal;
a judgment portion for judging stability of the tempo; and
a control portion for controlling a certain target in accordance with a result judged by the judgment portion,
wherein the tempo detection portion has:
a feature value calculation portion for calculating a first feature value indicative of a feature relating to existence of
a beat and a second feature value indicative of a feature relating to tempo for each of the sections of the musical piece;
and

an estimation portion for concurrently estimating a beat position and a change in tempo in the musical piece by selecting,
from among a plurality of probability models described as sequences of states classified according to a combination of a physical
quantity relating to existence of a beat in each of the sections and a physical quantity relating to tempo in each of the
sections, a probability model whose sequence of observation likelihoods each indicative of a probability of concurrent observation
of the first feature value and the second feature value in the each section satisfies a certain criterion,

wherein the sound signal input portion, the tempo detection portion, the judgment portion, and the control portion are implemented
at least in part by the at least one processor executing at least one program recorded on the at least one non-transitory
memory device.