Patents by Inventor Gilles Robichon

Gilles Robichon 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).

  • Controllable frequency, temperature compensated piezoelectric oscillator of high spectral purity
    Patent number: 4833426
    Abstract: A temperature-compensated piezoelectric oscillator of high-spectral purity, capable of being controlled in frequency, consists of a compensation circuit, a processing circuit, a phase-shifting circuit, containing the piezoelectric resonator, and an oscillating circuit. To obtain high spectral purity, it is proposed to use a low-pass filter, placed between the compensation circuit and one of the inputs of the processing circuits, to process the signal coming from the compensation circuit. This filter eliminates the influence of the temperature noise coming from the compensation circuit. The invention can be applied to controllable frequency, temperature compensated piezoelectric oscillators where high spectral purity is sought.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: May 23, 1989
    Assignee: Compagnie D'Electronique et De Piezo-Electricite C.E.P.E.
    Inventors: Gilles Robichon, Didier Parly