Patents by Inventor Seiko Shimogawa

Seiko Shimogawa 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).

  • Base station controller and mobile station
    Patent number: 6975604
    Abstract: A base station controller and a mobile station to achieve high speed transmission and effective use of radio resources in a radio communications system. A communication system includes a plurality of base stations in order to provide communication among a mobile station, another mobile station and a communication link. The communication links for use in the communication are selected base on the channel quality of the communications links. The communication information is then demultiplexed for each selected link, and the data is sent parallel by way of the demultiplexed communication information along the selected communication links to allow high speed transmission.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: December 13, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhito Ishida, Shiro Mazawa, Seiko Shimogawa, Toshiaki Kurokawa, Tsutomu Yamaguchi