Patents Represented by Attorney, Agent or Law Firm Knoble & Yoshida, LLP
  • Patent number: 6650629
    Abstract: In the CDMA environment, a local call is directly made between two mobile stations (MS) without the involvement of a base station. The local direct calls do not interfere with any existing communication lines, and the implementation on the CDMA based units includes Master MS units and Slave MS units which selects one of currently unused offset values in a pilot signal for a local direct call in the CDMA environment.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: November 18, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Yousuke Takahashi, Kazuhito Ishida