Patents by Inventor Roger J. Shawyer

Roger J. Shawyer 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).

  • Digitally controlled beam former for a spacecraft
    Patent number: 5543801
    Abstract: A digitally controlled beam former for a spacecraft which includes means for periodically calibrating the feed paths of the spacecraft's antenna array by measuring the apparent movement of the center of a reference signal and a nominal signal and utilising the measured data to compensate for at least the phase drift in the antenna feed paths. The measured data may also be used to compensate for amplitude and phase drift in the antenna feed paths.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: August 6, 1996
    Assignee: Matra Marconi Space UK Limited
    Inventor: Roger J. Shawyer