Patents by Inventor Jacques Drevet

Jacques Drevet 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 device for compensating for the speed of clutter in a coherent doppler radar with variable blind speed
    Patent number: 4972194
    Abstract: In a doppler radar, in order to compensate for the speed of moving clutter, one first establishes during a burst of order (i) the phase variation .phi.r.sub.i from one period to the next and which is due to clutter in a given range cell. Then, this phase variation .phi.r.sub.i is memorized and is used during the course of each of the periods of repetition of the next burst to modify the phase of the signal received from the clutter from the same range cell in a maner as to displace its Doppler frequency towards the zero frequencies band, and band which corresponds to the rejection zone of the fixed echoes eliminating filter.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: November 20, 1990
    Assignee: Thomson-CSF
    Inventors: Bruno Carrara, Jean-Claude Guillerot, Hubert Joncour, Jacques Drevet