Patents by Inventor Wesley F. Marumo

Wesley F. Marumo 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).

  • Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver
    Patent number: 6480150
    Abstract: An autonomous Hardwired Tracking Loop (HWTL) ASIC comprising a HWTL coprocessor provided for implementing most of the receiver processing function for data acquisition and tracking functions of a radio receiver system in dedicated hardware. With the expanded functionality provided by an HWTL coprocessor in the autonomous HWTL ASIC, the interruption of CPU performing the navigation processing is significantly reduced to thereby maximize throughput and minimize power burden on the microprocessor. In the preferred embodiment, the HWTL ASIC also comprises the CPU and a correlator, wherein the correlator provides the high rate greater than approximately 1 KHz signal processing operations, the HWTL coprocessor providing the data acquisition and tracking (medium frequency signal processing) operations, and the CPU thereby freed to provide more bandwidth for lower frequency processing, i.e.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 12, 2002
    Assignee: SiRF Technology, Inc.
    Inventors: Henry D. Falk, Leon Kuo-Liang Peng, Wesley F. Marumo
  • Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver
    Publication number: 20010048388
    Abstract: An autonomous Hardwired Tracking Loop (HWTL) ASIC comprising a HWTL coprocessor provided for implementing most of the receiver processing function for data acquisition and tracking functions of a radio receiver system in dedicated hardware. With the expanded functionality provided by an HWTL coprocessor in the autonomous HWTL ASIC, the interruption of CPU performing the navigation processing is significantly reduced to thereby maximize throughput and minimize power burden on the microprocessor. In the preferred embodiment, the HWTL ASIC also comprises the CPU and a correlator, wherein the correlator provides the high rate greater than approximately 1 KHz signal processing operations, the HWTL coprocessor providing the data acquisition and tracking (medium frequency signal processing) operations, and the CPU thereby freed to provide more bandwidth for lower frequency processing, i.e.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 6, 2001
    Applicant: SiRF Technology, Inc.
    Inventors: Henry D. Falk, Leon Kuo-Liang Peng, Wesley F. Marumo
  • Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver
    Patent number: 6278403
    Abstract: An autonomous Hardwired Tracking Loop (HWTL) ASIC comprising a HWTL coprocessor provided for implementing most of the receiver processing function for data acquisition and tracking functions of a radio receiver system in dedicated hardware. With the expanded functionality provided by an HWTL coprocessor in the autonomous HWTL ASIC, the interruption of CPU performing the navigation processing is significantly reduced to thereby maximize throughput and minimize power burden on the microprocessor. In the preferred embodiment, the HWTL ASIC also comprises the CPU and a correlator, wherein the correlator provides the high rate greater than approximately 1 KHz signal processing operations, the HWTL coprocessor providing the data acquisition and tracking (medium frequency signal processing) operations, and the CPU thereby freed to provide more bandwidth for lower frequency processing, i.e.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: August 21, 2001
    Assignee: SiRF Technology, Inc.
    Inventors: Leon Kuo-Liang Peng, Henry D. Falk, Wesley F. Marumo