Patents by Inventor Thomas Brian Wilborn

Thomas Brian Wilborn 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).

  • Apparatus and method of velocity estimation
    Patent number: 6529850
    Abstract: A velocity estimate is determined from a received signal by counting the number of times a signal in one multipath crosses a predetermined threshold in a given amount of time. A signal is received and a single multipath is extracted from the received signal. Instantaneous envelope values of the extracted multipath are calculated. A plurality of the instantaneous envelope values are used to calculate a running RMS value. A level crossing threshold is determined using the running RMS value. The number of times the instantaneous envelope value crosses the level crossing threshold is counted. The number of level crossings is mapped to a velocity estimate.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: March 4, 2003
    Inventors: Thomas Brian Wilborn, Shimman Patel, Gilbert C. Sih, Farrokh Abrishamkar
  • Apparatus and method of velocity estimation
    Publication number: 20020138229
    Abstract: A velocity estimate is determined from a received signal by counting the number of times a signal in one multipath crosses a predetermined threshold in a given amount of time. A signal is received and a single multipath is extracted from the received signal. Instantaneous envelope values of the extracted multipath are calculated. A plurality of the instantaneous envelope values are used to calculate a running RMS value. A level crossing threshold is determined using the running RMS value. The number of times the instantaneous envelope value crosses the level crossing threshold is counted. The number of level crossings is mapped to a velocity estimate.
    Type: Application
    Filed: February 1, 2001
    Publication date: September 26, 2002
    Inventors: Thomas Brian Wilborn, Shimman Patel, Gilbert C. Sih, Farrokh Abrishamkar