Patents by Inventor William Kerry Keal

William Kerry Keal 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).

  • SIGNAL PROCESSING PROVIDING LOWER DOWNSAMPLING LOSSES
    Publication number: 20080204288
    Abstract: Methods and devices for processing GPS signals are provided. The device includes: means for storing one or more lookup tables, each lookup table comprising a plurality of entries, each entry comprising an input segment and an output segment, wherein the output segment is a system response to the corresponding input segment; and processing means for receiving an input data sequence comprising one or more input segments, and for each of the input segments, retrieve from one of the lookup tables the output segments corresponding to the input segment, wherein the processing means is further configured to perform a time-shifted sum of one or more output segments to produce an output sequence that is a downsampled representation of the input data sequence.
    Type: Application
    Filed: April 7, 2008
    Publication date: August 28, 2008
    Inventors: Erik Anderson, Paul Eric Beckmann, William Kerry Keal
  • Signal processing providing lower downsampling losses
    Patent number: 7355535
    Abstract: Methods and devices for processing GPS signals are provided. The device includes: means for storing one or more lookup tables, each lookup table comprising a plurality of entries, each entry comprising an input segment and an output segment, wherein the output segment is a system response to the corresponding input segment; and processing means for receiving an input data sequence comprising one or more input segments, and for each of the input segments, retrieve from one of the lookup tables the output segments corresponding to the input segment, wherein the processing means is further configured to perform a time-shifted sum of one or more output segments to produce an output sequence that is a downsampled representation of the input data sequence.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: April 8, 2008
    Assignee: SiRF Technology, Inc.
    Inventors: Erik Anderson, Paul Eric Beckman, William Kerry Keal
  • Signal processing providing lower downsampling losses
    Patent number: 7145487
    Abstract: Methods and devices for processing GPS signals are provided. The device includes: a memory for storing one or more lookup tables, each lookup table including a plurality of entries, each entry including an input segment and an output segment, wherein the output segment is a system response to the corresponding input segment. The device further includes a processor configured to receive an input data sequence including one or more input segments, and for each of the input segments, retrieve from one of the lookup tables the output segments corresponding to the input segment. The processor is further configured to perform a time-shifted sum of one or more output segments to produce an output sequence that is a downsampled representation of the input data sequence.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: December 5, 2006
    Assignee: SiRF Technology, Inc.
    Inventors: Erik Anderson, Paul Eric Beckmann, William Kerry Keal
  • Adapative noise compensation for dynamic signal enhancement
    Publication number: 20030223597
    Abstract: The present invention includes methods and devices useful for dynamic gain control. Particular aspects of the present invention are described in the claims, specification and drawings.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Inventors: Sunil Puria, William Kerry Keal