Patents by Inventor Jean Choquer

Jean Choquer 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).

  • High frequency antenna tuning device
    Patent number: 4672686
    Abstract: The invention relates to a high frequency antenna tuning device. The antenna is connected to a power transmitter, which periodically supplies power signals at predetermined high frequencies. For each frequency, the tuning device comprises a tuning capacitor connected to a switch. These switches are connected to control means, which are in turn connected to identification outputs of the frequencies of the signals supplied by the generator. The device also comprises means for detecting power signals transmitted by the antenna, so as to prevent any switching throughout the duration of a power transmission by the antenna on one of the predetermined frequencies.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: June 9, 1987
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Daniel Raoux, Jean Choquer
  • Tuned band-switching loop antenna
    Patent number: 4617571
    Abstract: The invention relates to a loop antenna tuned by means of a variable capacitor.The antenna includes, in parallel with the variable capacitor (4), a switchable state variable inductor (11).The invention is particularly applicable to antennas for HF radio links at powers of up to 1 kW.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: October 14, 1986
    Assignee: Societe Technique d'Applicatioon et de Recherche Electronique
    Inventors: Jean Choquer, Thierry Gartner