Patents by Inventor Clifford Chow

Clifford Chow 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).

  • Position determination system and method
    Patent number: 7783423
    Abstract: An improved position determination system and method are described. The method includes determining that a failure to generate an acceptable GNSS position fix has occurred. In response to determining that the failure to generate an acceptable GNSS position fix has occurred, terrestrial positioning information is accessed which is derived from at least one broadcast signal. A second position fix based upon the terrestrial positioning information is generated.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: August 24, 2010
    Assignee: Trimble Navigation Limited
    Inventors: Rajiv Kumar Verma, Clifford Chow, Gregory T. Janky, Dennis Workman
  • POSITION DETERMINATION SYSTEM AND METHOD
    Publication number: 20100149030
    Abstract: An improved position determination system and method are described. The method includes determining that a failure to generate an acceptable GNSS position fix has occurred. In response to determining that the failure to generate an acceptable GNSS position fix has occurred, terrestrial positioning information is accessed which is derived from at least one broadcast signal. A second position fix based upon the terrestrial positioning information is generated.
    Type: Application
    Filed: July 28, 2006
    Publication date: June 17, 2010
    Inventors: Rajiv Kumar Verma, Clifford Chow, Gregory T. Janky, Dennis Workman