Patents by Inventor Mohinder Grewal

Mohinder Grewal 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).

  • Method and apparatus for wide area augmentation system having L1/L5 bias estimation
    Publication number: 20070067073
    Abstract: A wide area augmentation system (WAAS) includes L1/L5 bias estimation.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 22, 2007
    Inventors: Po-Hsin Hsu, Laura Cheung, Mohinder Grewal
  • Method and apparatus for wide area augmentation system having GEO uplink subsystem with enhanced clock steering
    Publication number: 20050190102
    Abstract: A system to provide navigation signals to a space vehicle includes an uplink system for a geostationary earth satellite having clock steering derived from smoothed receiver clock error, long term clock error average, and long term clock offset average information. A proportional-integral-differential controller can be used to generate clock adjustment commands to a frequency standard clock.
    Type: Application
    Filed: February 23, 2005
    Publication date: September 1, 2005
    Inventors: Po-Hsin Hsu, Mohinder Grewal