Patents by Inventor Susumu Takumai

Susumu Takumai 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).

  • Patent number: 10728665
    Abstract: An audio device comprising: at least one processing circuit configured to implement stored instructions and execute a plurality of tasks, wherein the plurality of tasks include: a reading task that, from a medium that stores channel information, reads the channel information; an obtaining task that obtains individual identification information of an own device; a transmitting task that transmits the channel information read from the medium and the individual identification information to a content output device that outputs content including a plurality of channels; and a receiving task that receives at least one channel in the content.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: July 28, 2020
    Assignee: Yamaha Corporation
    Inventor: Susumu Takumai
  • Publication number: 20200015014
    Abstract: A content output device includes a connector, an outputter, and an assigner. The connector connects the content output device with a plurality of audio devices. The assigner assigns a plurality of channels to the plurality of audio devices. The outputter outputs the plurality of channels to the at least one communicator for output to the plurality of audio devices in accordance with the assignment of the plurality of channels in the assigning task.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventor: Susumu TAKUMAI
  • Publication number: 20180279046
    Abstract: An audio device comprising: at least one processing circuit configured to implement stored instructions and execute a plurality of tasks, wherein the plurality of tasks include: a reading task that, from a medium that stores channel information, reads the channel information; an obtaining task that obtains individual identification information of an own device; a transmitting task that transmits the channel information read from the medium and the individual identification information to a content output device that outputs content including a plurality of channels; and a receiving task that receives at least one channel in the content.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 27, 2018
    Inventor: Susumu TAKUMAI
  • Patent number: 10038963
    Abstract: A speaker apparatus includes an input portion to which audio signals of a plurality of channels are input, a plurality of speakers, a directivity controlling portion that delays the audio signals of the plurality of channels input to the input portion and distributes the delayed audio signals to the plurality of speakers so that the plurality of speakers output a plurality of sound beams, and a localization adding portion that applies a filtering processing based on a head-related transfer function to at least one of the audio signals of the plurality of channels input to the input portion and inputs the processed audio signal to the plurality of speakers.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 31, 2018
    Assignee: Yamaha Corporation
    Inventors: Masaki Katayama, Susumu Takumai, Keiichi Imaoka
  • Patent number: 9736577
    Abstract: A speaker array apparatus includes an apparatus housing having a disposition plane, and a speaker array which includes a plurality of speakers disposed at least in a vertical direction on the disposition plane of the apparatus housing that is opposite to a listening position. The speaker array apparatus receives and distributes a sound signal input from an outside to all of or a part of the speakers of the speaker array, and outputs the distributed sound signal as a sound beam by controlling an output timing of each sound output from the all or part of the speakers. Each speaker of the speaker array has an appropriate output direction in an elevation angle, the appropriate output direction indicating a direction having largest sound pressure in a sound pressure distribution when the sound is output from the speaker.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: August 15, 2017
    Assignee: Yamaha Corporation
    Inventors: Masaki Yamamoto, Susumu Takumai, Kazunori Tanaka, Yuichi Sugisaki
  • Publication number: 20170201846
    Abstract: A speaker apparatus includes an input portion to which audio signals of a plurality of channels are input, a plurality of speakers, a directivity controlling portion that delays the audio signals of the plurality of channels input to the input portion and distributes the delayed audio signals to the plurality of speakers so that the plurality of speakers output a plurality of sound beams, and a localization adding portion that applies a filtering processing based on a head-related transfer function to at least one of the audio signals of the plurality of channels input to the input portion and inputs the processed audio signal to the plurality of speakers.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 13, 2017
    Inventors: Masaki KATAYAMA, Susumu Takumai, Keiichi Imaoka
  • Patent number: 9674609
    Abstract: A speaker apparatus includes an input portion to which audio signals of a plurality of channels are input, a plurality of speakers, a directivity controlling portion that delays the audio signals of the plurality of channels input to the input portion and distributes the delayed audio signals to the plurality of speakers so that the plurality of speakers output a plurality of sound beams, and a localization adding portion that applies a filtering processing based on a head-related transfer function to at least one of the audio signals of the plurality of channels input to the input portion and inputs the processed audio signal to the plurality of speakers.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: June 6, 2017
    Assignee: Yamaha Corporation
    Inventors: Masaki Katayama, Susumu Takumai, Keiichi Imaoka
  • Patent number: 9571924
    Abstract: A speaker array apparatus includes a speaker array, a beam forming portion that is configured to cause the speaker array to output the sound beam, a beam control portion that is configured to sweep with the test sound beam in a predetermined angle range in a vertical direction with respect to a horizontal direction, a microphone, a distance obtaining portion that is configured to obtain a distance between the speaker array and the microphone, and a storage portion that is configured to store pickup sound data that is associated with the output angle. The beam control portion sets a minimum output angle of the angle range to be larger as the distance obtained by the distance obtaining portion is smaller.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 14, 2017
    Assignee: Yamaha Corporation
    Inventor: Susumu Takumai
  • Patent number: 9560450
    Abstract: A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, 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 that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: January 31, 2017
    Assignee: Yamaha Corporation
    Inventors: Susumu Takumai, Kenichiro Takeshita
  • Patent number: 9456278
    Abstract: A speaker device includes a signal processing section and a speaker array that includes a first speaker units group and a second speaker units group. The signal processing section performs a first signal process in which sound based on an audio signal of a first channel is set to output from the first speaker units group and a first virtual focus of the sound is set to an opposite side of the speaker array opposite to a sound output direction of the first speaker units group, and sound based on an audio signal of a second channel is set to output from the second speaker units group and a second virtual focus of the sound based on the audio signal of the second channel is set to an opposite side of the speaker array opposite to a sound output direction of the second speaker units group.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: September 27, 2016
    Assignee: YAMAHA CORPORATION
    Inventors: Kazunori Tanaka, Susumu Takumai
  • Publication number: 20160255434
    Abstract: A speaker array apparatus includes an apparatus housing having a disposition plane, and a speaker array which includes a plurality of speakers disposed at least in a vertical direction on the disposition plane of the apparatus housing that is opposite to a listening position. The speaker array apparatus receives and distributes a sound signal input from an outside to all of or a part of the speakers of the speaker array, and outputs the distributed sound signal as a sound beam by controlling an output timing of each sound output from the all or part of the speakers. Each speaker of the speaker array has an appropriate output direction in an elevation angle, the appropriate output direction indicating a direction having largest sound pressure in a sound pressure distribution when the sound is output from the speaker.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Inventors: Masaki YAMAMOTO, Susumu TAKUMAI, Kazunori TANAKA, Yuichi SUGISAKI
  • Publication number: 20160182996
    Abstract: A speaker array apparatus includes a speaker array, a beam forming portion that is configured to cause the speaker array to output the sound beam, a beam control portion that is configured to sweep with the test sound beam in a predetermined angle range in a vertical direction with respect to a horizontal direction, a microphone, a distance obtaining portion that is configured to obtain a distance between the speaker array and the microphone, and a storage portion that is configured to store pickup sound data that is associated with the output angle. The beam control portion sets a minimum output angle of the angle range to be larger as the distance obtained by the distance obtaining portion is smaller.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventor: Susumu TAKUMAI
  • Publication number: 20150382108
    Abstract: A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, 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 that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Susumu TAKUMAI, Kenichiro TAKESHITA
  • Patent number: 9167369
    Abstract: A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, 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 that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 20, 2015
    Assignee: Yamaha Corporation
    Inventors: Susumu Takumai, Kenichiro Takeshita
  • Patent number: 9124978
    Abstract: A speaker array apparatus for outputting sound beams of a plurality of channels based on audio signals of the plurality of channels, includes a directivity control section that controls a directivity of at least one of the sound beams of the channels so as to generate one or more pairs of the sound beams of the channels having roughly the same directivity, and a frequency characteristic applying section that applies a frequency characteristic to the audio signal corresponding to one of the sound beams of the channels in the one or more pairs to change a sound image localization position of the one of the sound beams of the channels in the one or more pairs.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: September 1, 2015
    Assignee: YAMAHA CORPORATION
    Inventors: Yusuke Konagai, Susumu Takumai, Kazunori Tanaka
  • Publication number: 20150237446
    Abstract: A speaker apparatus includes an input portion to which audio signals of a plurality of channels are input, a plurality of speakers, a directivity controlling portion that delays the audio signals of the plurality of channels input to the input portion and distributes the delayed audio signals to the plurality of speakers so that the plurality of speakers output a plurality of sound beams, and a localization adding portion that applies a filtering processing based on a head-related transfer function to at least one of the audio signals of the plurality of channels input to the input portion and inputs the processed audio signal to the plurality of speakers.
    Type: Application
    Filed: August 19, 2014
    Publication date: August 20, 2015
    Inventors: Masaki Katayama, Susumu Takumai, Keiichi Imaoka
  • Publication number: 20140126753
    Abstract: A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, 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 that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 8, 2014
    Applicant: Yamaha Corporation
    Inventors: Susumu Takumai, Kenichiro Takeshita
  • Patent number: 8428268
    Abstract: An array speaker apparatus includes an array speaker in which plural speaker units are arranged in a single body, a sound source localization adding unit which generates left and right audio signals by performing localization processing for adding sound characteristics to audio signals of a front-left channel and a front-right channel on the basis of head transfer functions, and a sound emitting direction control unit which distributes the left and right audio signals to one or plural speaker units of the array speaker, and controls timing with which the speaker units output the audio signals so that a left sound emitted from the array speaker forms the same sound wavefront formed by a sound emitted from one of virtual point sound sources and that a right sound emitted from the array speaker forms the same sound wavefront formed by a sound emitted from the other of the virtual point sound sources.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: April 23, 2013
    Assignee: Yamaha Corporation
    Inventors: Yusuke Konagai, Kenichiro Takeshita, Susumu Takumai
  • Patent number: 8422704
    Abstract: To provide a speaker array apparatus and a method for setting audio beams in a speaker array apparatus, in which the degree of freedom in the place where the speaker array apparatus is installed is high, and a user can set audio beams easily. A speaker array apparatus 1 sweeps a range of from 0 degree to 180 degrees in front of a speaker array 10 with audio beams based on an audio signal limited to a band where the angles of the audio beams can be adjusted. The speaker array apparatus 1 collects direct sounds or reflected sounds of the audio beams through a nondirectional microphone 2. The speaker array apparatus 1 analyzes the collected audio data, detects peaks not lower than a threshold value, and checks symmetry among the peaks. When there is a symmetry, the angles where the peaks were detected are set as angles with which audio beams of respective channels of a surround-sound should be output.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 16, 2013
    Assignee: Yamaha Corporation
    Inventor: Susumu Takumai
  • Patent number: 8391521
    Abstract: In a system capable of outputting an audio signal as beams from an array speaker and performing multi-channel reproduction, a plurality of beam setting patterns (reproduction modes) are stored in the memory of a controller. The beam setting patterns include a single basic pattern and a plurality of deformed patterns that use the beam control data of the basic pattern. When the user specifies a reproduction mode via an interface, the beam setting pattern corresponding to the mode is read and set to the signal processor of each channel.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: March 5, 2013
    Assignee: Yamaha Corporation
    Inventor: Susumu Takumai