Patents by Inventor Jean-Claude A. M. Cadet

Jean-Claude A. M. Cadet 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).

  • Angle coder with variable input angle
    Patent number: 4240069
    Abstract: An electronic angular coder for theodolites or the like, comprising a rotng disk bearing a series of engraved radial markings, a stationary detector, and a mobile detector. An approximate measure of the offset angle between a stationary detector and a mobile detector is accomplished by counting the markings passing in front of the heads. Fine measures of the shift in phase between the passage of a marking in front of the mobile detector and the fixed detector are also obtained.
    Type: Grant
    Filed: October 17, 1978
    Date of Patent: December 16, 1980
    Assignee: Societe d'Etudes, Recherches et Constructions Electroniques SERCEL
    Inventors: Francois M. L. Hullein, Jean-Claude A. M. Cadet