Patents by Inventor Richard James Weston

Richard James Weston 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).

  • Dual positioning location system
    Patent number: 5644317
    Abstract: An automatic vehicle location system (10) includes a radio positioning system receiver (14) which receives GPS radio signals (18) and includes a two-gimbaled gyroscope (22), which is used by a dead-reckoning positioning system. A controller (43) determines position based upon the radio positioning system when the radio signals (18) are available and upon dead-reckoning when the radio signals (18) are not available. The dead-reckoning process is based upon a compensation factor which is established in response to data received from the radio positioning system (14). The compensation factor acts as an adjustment to an inner gimbal angle to compensate for a minor drift away from level by the inner gimbal (32).
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: July 1, 1997
    Assignee: Motorola, Inc.
    Inventors: Richard James Weston, Bruce Edward Geren