Patents by Inventor Rodney Keith McPherson

Rodney Keith McPherson 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).

  • Patent number: 7990929
    Abstract: A wireless communications device may include a path searcher for detecting signal peak locations in a received spread-spectrum signal, and a RAKE finger stage. The RAKE finger stage may include a plurality of RAKE fingers for determining symbol values from the received spread-spectrum signal based upon the detected peak locations. Each RAKE finger may include at least one de-spreader for de-spreading time-staggered versions of the received spread-spectrum signal and operating at a signal rate of the received spread-spectrum signal, and a frequency corrector downstream from the at least one de-spreader comprising a phase lock loop (PLL) operating at a rate that is less than the signal rate.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: August 2, 2011
    Assignee: Harris Corporation
    Inventor: Rodney Keith McPherson
  • Patent number: 7592956
    Abstract: A location determining system for a wireless transmitter is carried by a platform movable relative to the wireless transmitter. The location determining system may include an antenna, and a receiver coupled to the antenna. The location determining system may also include a location determining processor coupled to the receiver to collect, during movement relative to the wireless transmitter, a series of range measurements and a corresponding series of received signal measurements, and to estimate a location of the wireless transmitter based upon the range measurements weighted using the received signal measurements.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: September 22, 2009
    Assignee: Harris Corporation
    Inventors: Rodney Keith McPherson, David James Lanza
  • Publication number: 20090201208
    Abstract: A location determining system for a wireless transmitter is carried by a platform movable relative to the wireless transmitter. The location determining system may include an antenna, and a receiver coupled to the antenna. The location determining system may also include a location determining processor coupled to the receiver to collect, during movement relative to the wireless transmitter, a series of range measurements and a corresponding series of received signal measurements, and to estimate a location of the wireless transmitter based upon the range measurements weighted using the received signal measurements.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Applicant: Harris Corporation
    Inventors: Rodney Keith MCPHERSON, David James LANZA
  • Publication number: 20090135799
    Abstract: A wireless communications device may include a path searcher for detecting signal peak locations in a received signal. The path searcher may include a common coherent correlator for performing a common coherent correlation operation on the received signal, and a plurality of peak detection frequency bin correlators may be arranged in parallel downstream from the common coherent correlator. The wireless communications device may further include a RAKE finger stage for determining symbol values from the received signal based upon the detected signal peak locations.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Applicant: Harris Corporation
    Inventors: Rodney Keith McPherson, Steven Dennis Halford, Eric Jonathan Salyers, Daniel L. Boritzki
  • Publication number: 20090135800
    Abstract: A wireless communications device may include a path searcher for detecting signal peak locations in a received spread-spectrum signal, and a RAKE finger stage. The RAKE finger stage may include a plurality of RAKE fingers for determining symbol values from the received spread-spectrum signal based upon the detected peak locations. Each RAKE finger may include at least one de-spreader for de-spreading time-staggered versions of the received spread-spectrum signal and operating at a signal rate of the received spread-spectrum signal, and a frequency corrector downstream from the at least one de-spreader comprising a phase lock loop (PLL) operating at a rate that is less than the signal rate.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Applicant: Harris Corporation
    Inventor: Rodney Keith McPherson