Patents by Inventor Yoshiaki Ohshima

Yoshiaki Ohshima 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).

  • System for embedding additional information in audio data
    Patent number: 6526385
    Abstract: A method and a system is provided for embedding and detecting additional information, such as copyright information, in audio data, so that a modification in the sonic quality due to the embedding is imperceptible to human beings, and does not drastically deteriorate the sonic quality.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: February 25, 2003
    Assignee: International Business Machines Corporation
    Inventors: Seiji Kobayashi, Dean D. Chen, Yoshiaki Ohshima, Shuichi Shimizu, Norishige Morimoto