Patents by Inventor James Robert Kelton

James Robert Kelton 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).

  • Apparatus and method for synchronizing a rural wireless fixed access unit into a TDMA system
    Patent number: 5640396
    Abstract: A method of synchronizing a fixed access unit (16) into a time division multiple access (TDMA) system (10). The method includes the steps of receiving a first timing advance channel time slot (86) at the fixed access unit (16), sending a message advanced in time by an offset value over a second time slot (88), receiving an acknowledgment from the TDMA system (10) that the message was received, and advancing a subsequently transmitted communication based on the offset value.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: June 17, 1997
    Assignee: Motorola, Inc.
    Inventors: Mark Conrad Cudak, James Robert Kelton, Bruce Dale Mueller