Patents by Inventor Masanobu Funakoshi

Masanobu Funakoshi 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: 20210067788
    Abstract: An information processing apparatus includes an information obtaining unit configured to obtain information indicating a time code of a processing target video frame included in video data that is in accordance with a specific frame rate; a specifying unit configured to specify an acoustic signal block corresponding to the obtained time code among a plurality of acoustic signal blocks each of which collectively includes a fixed number of successive acoustic samples, the successive acoustic samples being included in acoustic data that is in accordance with a specific sampling rate, wherein a time interval corresponding to one video frame is different from a time interval corresponding to one acoustic signal block; and a processing unit configured to associate acoustic samples included in the specified acoustic signal block with the video frame corresponding to the obtained time code to perform processing.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 4, 2021
    Inventor: Masanobu Funakoshi
  • Patent number: 10734029
    Abstract: A signal processing apparatus for generating a playback audio signal to be played back together with a slow-motion image based on image capturing in a capturing target region, obtains a first audio signal containing a sound in the capturing target region, and based on sound acquisition in a first period shorter than a capturing period corresponding to the slow-motion image, obtains a second audio signal containing a sound in a peripheral region of the capturing target region, and based on sound acquisition in a second period longer than the capturing period, and synthesizes the first audio signal and the second audio signal, thereby generating the playback audio signal to be played back together with the slow-motion image.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Patent number: 10664128
    Abstract: An information processing apparatus acquires information about designation of a position of a virtual viewpoint related to a virtual viewpoint image generated based on image capturing by a plurality of cameras, and decides, based on the information, a virtual listening point for generating an audio signal based on sound pickup at a plurality of sound pickup points.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: May 26, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Publication number: 20190348066
    Abstract: Provided is an image processing apparatus comprising: a detection unit configured to perform a voice detection process on each of a plurality of audio signals captured by a plurality of microphones arranged at mutually different positions; a determination unit configured to determine a degree of similarity between two or more of the plurality of audio signals in which voice is detected by the detection unit; and a suppression unit configured to perform a process of suppressing the voice contained in at least one of the two or more audio signals, in response to a determination that the degree of similarity between the two or more audio signals is less than a threshold by the determination unit.
    Type: Application
    Filed: April 16, 2019
    Publication date: November 14, 2019
    Inventor: Masanobu Funakoshi
  • Publication number: 20190155483
    Abstract: An information processing apparatus acquires information about designation of a position of a virtual viewpoint related to a virtual viewpoint image generated based on image capturing by a plurality of cameras, and decides, based on the information, a virtual listening point for generating an audio signal based on sound pickup at a plurality of sound pickup points.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventor: Masanobu Funakoshi
  • Patent number: 10235010
    Abstract: An information processing apparatus acquires information about designation of a position of a virtual viewpoint related to a virtual viewpoint image generated based on image capturing by a plurality of cameras, and decides, based on the information, a virtual listening point for generating an audio signal based on sound pickup at a plurality of sound pickup points.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 19, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Publication number: 20180330759
    Abstract: A signal processing apparatus for generating a playback audio signal to be played back together with a slow-motion image based on image capturing in a capturing target region, obtains a first audio signal containing a sound in the capturing target region, and based on sound acquisition in a first period shorter than a capturing period corresponding to the slow-motion image, obtains a second audio signal containing a sound in a peripheral region of the capturing target region, and based on sound acquisition in a second period longer than the capturing period, and synthesizes the first audio signal and the second audio signal, thereby generating the playback audio signal to be played back together with the slow-motion image.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 15, 2018
    Inventor: Masanobu Funakoshi
  • Patent number: 10021483
    Abstract: A noise signal is estimated based on a captured audio signal captured from a sound capture unit. It is determined whether the estimated noise signal thus estimated is in a noiseless state. If it is determined that the estimated noise signal is in the noiseless state, the captured audio signal is analyzed as a target sound signal, and a characteristic obtained by the analysis is learned and modeled, thereby generating a target sound model.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 10, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Publication number: 20180035235
    Abstract: An information processing apparatus acquires information about designation of a position of a virtual viewpoint related to a virtual viewpoint image generated based on image capturing by a plurality of cameras, and decides, based on the information, a virtual listening point for generating an audio signal based on sound pickup at a plurality of sound pickup points.
    Type: Application
    Filed: July 7, 2017
    Publication date: February 1, 2018
    Inventor: Masanobu Funakoshi
  • Patent number: 9648411
    Abstract: An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity matrices. Bases in the basis spectrum matrix are classified into bases concerning a target sound and bases concerning noise. Bases in the activity matrix are classified into bases concerning the target sound and bases concerning the noise. Bases concerning the target sound are obtained from the bases concerning the noise classified from the basis spectrum matrix. A matrix including frequency amplitude values of the target sound is obtained using the bases concerning the target sound classified from the basis spectrum matrix, the bases concerning the target sound and noise classified from the activity matrix, and the obtained bases. The audio signal of the target sound is generated using the matrix.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 9, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Patent number: 9622012
    Abstract: An audio signal processing apparatus acquires a specific audio signal based on at least one of audio signals of multiple sound capturing channels captured by multiple microphones, cancels a signal corresponding to the specific audio signal in the audio signals of the sound capturing channels that are to be used in surround audio signal generation, and, using the specific audio signal and the audio signals in which the signal corresponding to the specific audio signal was canceled, generates a surround audio signal such that the sound source of the specific audio signal is located at a specified direction in the surround sound field.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: April 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Publication number: 20150208171
    Abstract: An audio signal processing apparatus acquires a specific audio signal based on at least one of audio signals of multiple sound capturing channels captured by multiple microphones, cancels a signal corresponding to the specific audio signal in the audio signals of the sound capturing channels that are to be used in surround audio signal generation, and, using the specific audio signal and the audio signals in which the signal corresponding to the specific audio signal was canceled, generates a surround audio signal such that the sound source of the specific audio signal is located at a specified direction in the surround sound field.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 23, 2015
    Inventor: Masanobu Funakoshi
  • Publication number: 20150208167
    Abstract: An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity matrices. Bases in the basis spectrum matrix are classified into bases concerning a target sound and bases concerning noise. Bases in the activity matrix are classified into bases concerning the target sound and bases concerning the noise. Bases concerning the target sound are obtained from the bases concerning the noise classified from the basis spectrum matrix. A matrix including frequency amplitude values of the target sound is obtained using the bases concerning the target sound classified from the basis spectrum matrix, the bases concerning the target sound and noise classified from the activity matrix, and the obtained bases. The audio signal of the target sound is generated using the matrix.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventor: Masanobu Funakoshi
  • Publication number: 20150139433
    Abstract: A noise signal is estimated based on a captured audio signal captured from a sound capture unit. It is determined whether the estimated noise signal thus estimated is in a noiseless state. If it is determined that the estimated noise signal is in the noiseless state, the captured audio signal is analyzed as a target sound signal, and a characteristic obtained by the analysis is learned and modeled, thereby generating a target sound model.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventor: Masanobu Funakoshi
  • Publication number: 20100303252
    Abstract: In a system in which a plurality of speakers are connected to an acoustic reproduction apparatus which reproduces an acoustic signal input from an external sound source by transmitting the acoustic signal to each speaker, the acoustic reproduction apparatus transmits a control signal by superimposing the control signal on an acoustic signal to be transmit to each speaker. Each speaker generates a predetermined response signal in accordance with the transmitted control signal. When reproducing the acoustic signal, acoustic control is executed in accordance with the generated response signal.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 2, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masanobu Funakoshi
  • Patent number: 7613605
    Abstract: An audio signal encoding apparatus includes a frame dividing unit (1), an auditory psychological arithmetic unit (2), a filter bank unit (3), a scale factor calculation unit (4) which weights the spectra in the respective frequency bands by an arithmetic result of the auditory psychological arithmetic unit (2), a quantization step determination unit (7) which determines a quantization step of the entire frame prior to spectrum quantization by subtracting an information size of all quantized spectra from an auditory information size of all the weighted spectra before quantization, and multiplying the difference by a coefficient obtained from a step width of a quantization coarseness, a spectrum quantization unit (8), and a bit shaping unit (9) which outputs a bitstream obtained by shaping quantized spectra. The quantization step determination unit predicts the information size of all the quantized spectra based on a bit size assigned to a frame to be encoded.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: November 3, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanobu Funakoshi
  • Publication number: 20070265836
    Abstract: An audio signal encoding apparatus includes a frame dividing unit (1), an auditory psychological arithmetic unit (2), a filter bank unit (3), a scale factor calculation unit (4) which weights the spectra in the respective frequency bands by an arithmetic result of the auditory psychological arithmetic unit (2), a quantization step determination unit (7) which determines a quantization step of the entire frame prior to spectrum quantization by subtracting an information size of all quantized spectra from an auditory information size of all the weighted spectra before quantization, and multiplying the difference by a coefficient obtained from a step width of a quantization coarseness, a spectrum quantization unit (8), and a bit shaping unit (9) which outputs a bitstream obtained by shaping quantized spectra. The quantization step determination unit predicts the information size of all the quantized spectra based on a bit size assigned to a frame to be encoded.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 15, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: MASANOBU FUNAKOSHI
  • Patent number: 7003505
    Abstract: In an information retrieval apparatus for retrieving, from a database, information of a predetermined number in the descending order to degree of matching with the entered retrieving condition, in displaying the images corresponding to the results of retrieval, the size and position of the image are so determined that the image becomes larger in size and closer to the center of the display unit with a higher degree of matching whereby the degree of matching can be directly understood. Also within the positions of a same distance from the center, the display position is so determined as to minimize the overlapping with other results of retrieval whereby the results can be displayed in an easily observable manner.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanobu Funakoshi