Patents by Inventor Seizi Okamoto

Seizi Okamoto 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).

  • Stereo signal generator
    Patent number: 5418856
    Abstract: A stereo signal generator for generating stereo signals of a plurality of channels from a single channel input sound signal, which comprises input means for inputting positional information of a sound source, and modification means for dividing the input sound signal into at least two, and for modifying the frequency characteristics (and loudness level as needed) of the respective divided signals based on the positional information of the sound source. The stereo signal generator achieve more natural localization of a sound source.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: May 23, 1995
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventor: Seizi Okamoto