Patents by Inventor Kunihiro Kumagai

Kunihiro Kumagai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230386501
    Abstract: A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Yuta YUYAMA, Kunihiro KUMAGAI, Ryotaro AOKI
  • Patent number: 11763837
    Abstract: A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: September 19, 2023
    Assignee: YAMAHA CORPORATION
    Inventors: Yuta Yuyama, Kunihiro Kumagai, Ryotaro Aoki
  • Publication number: 20210225390
    Abstract: A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 22, 2021
    Inventors: Yuta YUYAMA, Kunihiro KUMAGAI, Ryotaro AOKI
  • Patent number: 11004460
    Abstract: A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: May 11, 2021
    Assignee: YAMAHA CORPORATION
    Inventors: Yuta Yuyama, Kunihiro Kumagai, Ryotaro Aoki
  • Patent number: 10536778
    Abstract: An information processing apparatus includes a processor that performs a separate process to separate a content signal into a primary component which is an objective sound and a secondary component which is other than the objective sound, a speaker that outputs the primary component, and a transmitter that transmits the secondary component to another apparatus.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: January 14, 2020
    Assignee: Yamaha Corporation
    Inventors: Kohei Sekiguchi, Yuta Yuyama, Kunihiro Kumagai
  • Publication number: 20190362739
    Abstract: A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 28, 2019
    Inventors: Yuta YUYAMA, Kunihiro KUMAGAI, Ryotaro AOKI
  • Publication number: 20190253798
    Abstract: An information processing apparatus includes a processor that performs a separate process to separate a content signal into a primary component which is an objective sound and a secondary component which is other than the objective sound, a speaker that outputs the primary component, and a transmitter that transmits the secondary component to another apparatus.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Inventors: Kohei SEKIGUCHI, Yuta YUYAMA, Kunihiro KUMAGAI
  • Patent number: 9743214
    Abstract: A sound processing apparatus includes a processing unit that is configured to acquire an audio signal, perform a correction processing on the acquired audio signal and output the correction-processed audio signal to a sound emitting unit. The correction processing includes an indirect sound adjusting processing in which a given signal processing is performed on an audio signal so as to adjust an influence of an indirect sound to be heard at a sound receiving point, and a frequency characteristic adjusting processing in which a frequency characteristic of an audio signal is adjusted. In the correction processing, a frequency characteristic for the frequency characteristic adjusting processing is determined based on a frequency characteristic of the indirect sound adjusting processing.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 22, 2017
    Assignee: YAMAHA CORPORATION
    Inventors: Kunihiro Kumagai, Masaya Kano
  • Patent number: 9407983
    Abstract: A microphone device includes: a housing having an opening section in an upper face thereof; and a non-directional microphone unit incorporated in the housing and provided inside the opening section. The upper face of the housing has a shape in which a distance from an edge defined as a boundary between the upper face and a side face or a bottom face to the opening section throughout a whole circumference of the upper face changes in ½ or more of the whole circumference of the edge and an average value of the distance from the edge to the opening section is shorter than ½ of a wavelength of a sound wave in a frequency range in which an auditory sensitivity of humans is low.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 2, 2016
    Assignee: Yamaha Corporation
    Inventors: Kunihiro Kumagai, Yasuo Shiozawa, Shuichi Esaki, Hirofumi Onitsuka, Kiyohiko Goto, Yoshiaki Tsutsui
  • Publication number: 20150373438
    Abstract: A microphone device includes: a housing having an opening section in an upper face thereof; and a non-directional microphone unit incorporated in the housing and provided inside the opening section. The upper face of the housing has a shape in which a distance from an edge defined as a boundary between the upper face and a side face or a bottom face to the opening section throughout a whole circumference of the upper face changes in ½ or more of the whole circumference of the edge and an average value of the distance from the edge to the opening section is shorter than ½ of a wavelength of a sound wave in a frequency range in which an auditory sensitivity of humans is low.
    Type: Application
    Filed: February 14, 2013
    Publication date: December 24, 2015
    Applicant: Yahama Corporation
    Inventors: Kunihiro KUMAGAI, Yasuo SHIOZAWA, Shuichi ESAKI, Hirofumi ONITSUKA, Kiyohiko GOTO, Yoshiaki TSUTSUI
  • Publication number: 20150312690
    Abstract: An audio processing apparatus includes a measuring unit adapted to output a measure-test sound from a plurality of speaker devices and measure an arriving direction of an indirect sound for the output measure-test sound, a generator adapted to generate an adjustment sound for adjusting the indirect sound, and an adjustment sound adder adapted to add the adjustment sound into a sound to be output from at least one of the plurality of speaker devices by a distribution ratio which is set based on the arriving direction of the indirect sound.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 29, 2015
    Inventors: Yuta YUYAMA, Masaya KANO, Kunihiro KUMAGAI
  • Patent number: 8923526
    Abstract: An audio device (e.g. an AV amplifier), with a plurality of audio output terminals according to the HDMI standard, converts audio data of a source device into audio signals suited to audio reproduction abilities (e.g. channel counts) of sink devices. The audio device stores a plurality of audio reproduction ability information describing the predetermined channel count thereof and the channel counts of sink devices, wherein arbitrary audio reproduction ability information precluding audio reproduction ability information of a sink device with the smallest channel count is provided to a source device. The audio device performs down-mixing on audio signals with respect to a sink device whose channel count is smaller than the predetermined channel count, while the audio device performs signal processing on audio signals with respect to a sink device whose channel count is larger than the predetermined channel count.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: December 30, 2014
    Assignee: Yamaha Corporation
    Inventors: Masaya Kano, Toshihito Uchiyama, Kunihiro Kumagai, Kazunobu Fujiwara
  • Patent number: 8660272
    Abstract: A method of setting a parameter for an audio apparatus including a delay processing unit which applies a delaying process and an amplifying process on an input audio signal in accordance with the set parameter, includes: performing a measuring process including: causing an outputting device to output measurement sound; and measuring a first impulse response at a sound receiving point; performing a specifying process including: analyzing the measured first impulse response; calculating a second impulse response at the sound receiving point when the outputting device outputs sound in case where a parameter is set in the audio apparatus and an audio signal indicative of the measurement sound is input to the audio apparatus; and specifying a parameter in accordance with the calculated second impulse response; and performing a setting process of setting the specified parameter in the delay processing unit.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 25, 2014
    Assignee: Yamaha Corporation
    Inventor: Kunihiro Kumagai
  • Patent number: 8565451
    Abstract: Under the control of a controller, a DSP supplies audio signals received from a switch circuit to a main zone DAC, subjects the audio signals received from the aforementioned switch circuit (i.e., audio signals for main zone use) to down-mixing processing so that the number of channels matches the number of output terminals assigned to each zone, and respectively supplies the audio signals subjected to down-mixing processing to the respective switch circuits of each zone. Each of the aforementioned switch circuits supplies the audio signals received from the subzone DAC to the respective volume adjustor of each zone.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 22, 2013
    Assignee: Yamaha Corporation
    Inventors: Masaya Kano, Hironari Kawai, Tatsuya Takahashi, Daigo Sugiura, Hideyuki Suzuki, Kunihiro Kumagai
  • Publication number: 20120294460
    Abstract: A sound processing apparatus includes a processing unit that is configured to acquire an audio signal, perform a correction processing on the acquired audio signal and output the correction-processed audio signal to a sound emitting unit. The correction processing includes an indirect sound adjusting processing in which a given signal processing is performed on an audio signal so as to adjust an influence of an indirect sound to be heard at a sound receiving point, and a frequency characteristic adjusting processing in which a frequency characteristic of an audio signal is adjusted. In the correction processing, a frequency characteristic for the frequency characteristic adjusting processing is determined based on a frequency characteristic of the indirect sound adjusting processing.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicant: YAMAHA CORPORATION
    Inventors: Kunihiro KUMAGAI, Masaya KANO
  • Publication number: 20120128179
    Abstract: An audio device (e.g. an AV amplifier), with a plurality of audio output terminals according to the HDMI standard, converts audio data of a source device into audio signals suited to audio reproduction abilities (e.g. channel counts) of sink devices. The audio device stores a plurality of audio reproduction ability information describing the predetermined channel count thereof and the channel counts of sink devices, wherein arbitrary audio reproduction ability information precluding audio reproduction ability information of a sink device with the smallest channel count is provided to a source device. The audio device performs down-mixing on audio signals with respect to a sink device whose channel count is smaller than the predetermined channel count, whilst the audio device performs signal processing on audio signals with respect to a sink device whose channel count is larger than the predetermined channel count.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 24, 2012
    Applicant: Yamaha Corporation
    Inventors: Masaya Kano, Toshihito Uchiyama, Kunihiro Kumagai, Kazunobu Fujiwara
  • Patent number: 8150060
    Abstract: A surround sound outputting device includes a receiving portion which receives signals on a plurality of channels, a storing portion which stores measuring sound data representing a sound, an outputting portion which outputs a sound produced based on the signals on the plurality of channels or the measuring sound data in a controlled direction and in a beam shape, a controlling portion which controls a direction of the sound output from the outputting portion, a sound collecting portion which picks up the sound output from the outputting portion to produce picked-up sound data representing the picked-up sound, an impulse response specifying portion which specifies impulse responses in respective directions from respective sound data, a path characteristic specifying portion which specifies path distances of the paths through which the sounds output in the respective directions arrive at the sound collecting portion from the outputting portion and levels of the impulse responses based on the impulse responses
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: April 3, 2012
    Assignee: Yamaha Corporation
    Inventors: Koji Suzuki, Kunihiro Kumagai, Susumu Takumai
  • Publication number: 20110243340
    Abstract: A method of setting a parameter for an audio apparatus including a delay processing unit which applies a delaying process and an amplifying process on an input audio signal in accordance with the set parameter, includes: performing a measuring process including: causing an outputting device to output measurement sound; and measuring a first impulse response at a sound receiving point; performing a specifying process including: analyzing the measured first impulse response; calculating a second impulse response at the sound receiving point when the outputting device outputs sound in case where a parameter is set in the audio apparatus and an audio signal indicative of the measurement sound is input to the audio apparatus; and specifying a parameter in accordance with the calculated second impulse response; and performing a setting process of setting the specified parameter in the delay processing unit.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicant: YAMAHA CORPORATION
    Inventor: Kunihiro KUMAGAI
  • Publication number: 20090214046
    Abstract: A surround sound outputting device includes a receiving portion which receives signals on a plurality of channels, a storing portion which stores measuring sound data representing a sound, an outputting portion which outputs a sound produced based on the signals on the plurality of channels or the measuring sound data in a controlled direction and in a beam shape, a controlling portion which controls a direction of the sound output from the outputting portion, a sound collecting portion which picks up the sound output from the outputting portion to produce picked-up sound data representing the picked-up sound, an impulse response specifying portion which specifies impulse responses in respective directions from respective sound data, a path characteristic specifying portion which specifies path distances of the paths through which the sounds output in the respective directions arrive at the sound collecting portion from the outputting portion and levels of the impulse responses based on the impulse responses
    Type: Application
    Filed: February 25, 2009
    Publication date: August 27, 2009
    Applicant: YAMAHA CORPORATION
    Inventors: Koji Suzuki, Kunihiro Kumagai, Susumu Takumai
  • Publication number: 20090060227
    Abstract: Under the control of a controller, a DSP supplies audio signals received from a switch circuit to a main zone DAC, subjects the audio signals received from the aforementioned switch circuit (i.e., audio signals for main zone use) to down-mixing processing so that the number of channels matches the number of output terminals assigned to each zone, and respectively supplies the audio signals subjected to down-mixing processing to the respective switch circuits of each zone. Each of the aforementioned switch circuits supplies the audio signals received from the subzone DAC to the respective volume adjustor of each zone.
    Type: Application
    Filed: August 6, 2008
    Publication date: March 5, 2009
    Applicant: Yamaha Corporation
    Inventors: Masaya Kanoh, Hironari Kawai, Tatsuya Takahashi, Daigo Sugiura, Hideyuki Suzuki, Kunihiro Kumagai