Patents Assigned to Trimble Navigation, Inc.
  • Global positioning system course acquisition code receiver
    Patent number: 4754465
    Abstract: A GPS satellite receiver is disclosed in which the frequency of the received satellite signal is down converted in a single step by a balanced mixer driven by a half-frequency local oscillator and the down-converted satellite signal is converted from analog-to-digital form by a hard limiter.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: June 28, 1988
    Assignee: Trimble Navigation, Inc.
    Inventor: Charles R. Trimble