Patents by Inventor Katuhide Koshino

Katuhide Koshino 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).

  • Digital mobile data communication system
    Patent number: 5822367
    Abstract: A digital mobile data communication system includes a protocol converter in an exchange which simultaneously activates an FEC protocol receiver in a radio communication zone for modem communications at a rate of 2.4 Kbps and an ARQ protocol receiver in the radio communication zone for modem communications at a rate of 9.6 Kbps, and selects whichever one of the FEC protocol receiver or ARQ protocol receiver that has established receiving synchronization and the corresponding protocol transmitter.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: October 13, 1998
    Assignee: NEC Corporation
    Inventors: Katuhide Koshino, Masayuki Sakata