Patents by Inventor Yuta Kusaka

Yuta Kusaka 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).

  • Sound source separating device, sound source separating method, and program
    Patent number: 10839823
    Abstract: A sound source separating device includes: a signal acquiring unit that acquires the sound signal including mixed sounds from a plurality of sound sources; a start information acquiring unit that acquires start information representing a start timing of at least one sound source among the plurality of sound sources; and a sound source separating unit that separates a specific sound source from the sound signal by setting a binary mask controlling presence of the sound source using a variable of “0” and “1” and using a Markov chain for the activation on the basis of the start information and decomposing the spectrogram generated from the sound signal into the base spectrum and the activation through non-negative matrix factorization using the set binary mask S.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 17, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kazuhiro Nakadai, Yuta Kusaka, Katsutoshi Itoyama, Kenji Nishida
  • SOUND SOURCE SEPARATING DEVICE, SOUND SOURCE SEPARATING METHOD, AND PROGRAM
    Publication number: 20200273480
    Abstract: A sound source separating device includes: a signal acquiring unit that acquires the sound signal including mixed sounds from a plurality of sound sources; a start information acquiring unit that acquires start information representing a start timing of at least one sound source among the plurality of sound sources; and a sound source separating unit that separates a specific sound source from the sound signal by setting a binary mask controlling presence of the sound source using a variable of “0” and “1” and using a Markov chain for the activation on the basis of the start information and decomposing the spectrogram generated from the sound signal into the base spectrum and the activation through non-negative matrix factorization using the set binary mask S.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 27, 2020
    Inventors: Kazuhiro Nakadai, Yuta Kusaka, Katsutoshi Itoyama, Kenji Nishida