Patents by Inventor Kouichiro Kamura

Kouichiro Kamura 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).

  • Radio information communication system using multi-carrier spread spectrum transmission system
    Patent number: 5561686
    Abstract: In a radio information communication system of this invention, at least part of a transmission data string is first divided into a plurality of bit strings when data is transmitted by radio in a radio station on the transmission side and a plurality of carrier waves of different frequencies are subjected to primary modulation by the divided bit strings. Then, the primary-modulated carrier waves are subjected to secondary modulation by the spread spectrum system such as the frequency hopping system or chirp system and modulated waves obtained by the secondary modulation are transmitted.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: October 1, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Kobayashi, Hideaki Haruyama, Motomitsu Yano, Kouichiro Kamura, Kazuyoshi Ozawa