Patents by Inventor Rick Cooley

Rick Cooley 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).

  • High precision hardware carrier frequency and phase aiding in a GPS receiver
    Patent number: 6067328
    Abstract: A GPS system (12) including an antenna (12), a GPS receiver (14), and a baseband subsystem (16) is disclosed. The receiver (14) includes a reference clock (20), a down converter (22), and a baseband detector (24). The baseband detector (24) is coupled with the output of the down converter (22) and includes a numerically controlled oscillator (30), an adder circuit (32), a code generator (34), a code mixer (36), and a carrier mixer (38). The adder (32) corrects errors caused by clock errors generated by the receiver's reference clock (20) as they occur by adding a clock correction frequency to the oscillator (30) signals.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: May 23, 2000
    Assignee: AlliedSignal
    Inventors: Guy Lewellen, Rick Cooley