Patents by Inventor Wayne Cox

Wayne Cox 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).

  • Using FFT engines to process decorrelated GPS signals to establish frequencies of received signals
    Patent number: 6806827
    Abstract: The correlation circuitry of the present invention operates in communication with a controller and transform circuitry to concurrently search a range of frequencies by correlating a received signal from the global positioning system (GPS) with a generated frequency and a generated code at a plurality of time offsets. The output of the correlation circuitry is provided to the transform circuitry, such as fast Fourier transform (FFT) circuitry, that transforms the output of the correlation circuitry. The results from the transformation circuitry are used by a GPS receiver to determine a frequency of the received GPS signal and a time offset associated with a ranging code carried in the received GPS signal.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: October 19, 2004
    Assignee: RF Micro Devices, Inc.
    Inventors: Andreas Warloe, Richard Keegan, Wayne Cox, Steve Francis Colborne, Richard Najarian
  • Saving power in a GPS receiver by controlling domain clocking
    Publication number: 20040095272
    Abstract: The controller of the present invention is incorporated in a global positioning system (GPS) receiver and operates to control the power consumed by the receiver by controlling the clocking of numerous domains. Each domain includes circuitry associated with different functions of the receiver. For example, the receiver of the present invention includes domains for each channel, where the channels are used to locate and track GPS signals. When one or more of the channels are not in use, the controller deactivates the clock signal to the one or more unused channels, thereby minimizing the power consumed by the receiver.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Andreas Warloe, Wayne Cox
  • Using FFT engines to process decorrelated GPS signals to establish frequencies of received signals
    Publication number: 20040095275
    Abstract: The correlation circuitry of the present invention operates in communication with a controller and transform circuitry to concurrently search a range of frequencies by correlating a received signal from the global positioning system (GPS) with a generated frequency and a generated code at a plurality of time offsets. The output of the correlation circuitry is provided to the transform circuitry, such as fast Fourier transform (FFT) circuitry, that transforms the output of the correlation circuitry. The results from the transformation circuitry are used by a GPS receiver to determine a frequency of the received GPS signal and a time offset associated with a ranging code carried in the received GPS signal.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Andreas Warloe, Richard Keegan, Wayne Cox, Steve Colborne, Richard Najarian