Patents by Inventor Tatsuki Kashitani

Tatsuki Kashitani 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).

  • Chord estimation apparatus and method
    Patent number: 7411125
    Abstract: A chord estimation apparatus includes: frequency-component extraction means for extracting a frequency component from an input music signal; scale-component information generation means for mapping the frequency component extracted by the frequency-component extraction means onto each tone and generating scale-component information including each tone and loudness thereof; folding means for folding the scale-component information generated by the scale-component information generation means for each two octaves to generate scale-component information including 24 tones; and chord estimation means for inputting the scale-component information including 24 tones into a Bayesian network in order to estimate a chord.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: August 12, 2008
    Assignee: Sony Corporation
    Inventors: Keiichi Yamada, Tatsuki Kashitani
  • Chord estimation apparatus and method
    Publication number: 20070289434
    Abstract: A chord estimation apparatus includes: frequency-component extraction means for extracting a frequency component from an input music signal; scale-component information generation means for mapping the frequency component extracted by the frequency-component extraction means onto each tone and generating scale-component information including each tone and loudness thereof; folding means for folding the scale-component information generated by the scale-component information generation means for each two octaves to generate scale-component information including 24 tones; and chord estimation means for inputting the scale-component information including 24 tones into a Bayesian network in order to estimate a chord.
    Type: Application
    Filed: June 11, 2007
    Publication date: December 20, 2007
    Inventors: Keiichi Yamada, Tatsuki Kashitani