Patents by Inventor Pierre J. Goyard

Pierre J. Goyard 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).

  • Doppler radar for detection and localization of helicopters
    Patent number: 4346382
    Abstract: A monopulse radar system in which circuits are included for specific identification of echoes from helicopters vis-avis other echoes. The identification is based on either the large Doppler spectrum of a helicopter echo or the amplitude modulation thereof, or both. Embodiments are shown which utilize these criteria for identification as well as bearing refinement. The apparatus is effective, even when a helicopter is hidden from the full view of the radar by foliage.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: August 24, 1982
    Assignee: International Standard Electric Corporation
    Inventors: Henri J. Bosc, Pierre J. Goyard