Patents by Inventor Gerard Charlet

Gerard Charlet 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).

  • Voltage controlled crystal oscillator having wide frequency range
    Patent number: 4484157
    Abstract: To extend the variation range of a controlled frequency oscillator comprising a piezoelectric element, a lithium tantalate or lithium niobate element is used in parallel with which there is connected a linearization circuit comprising an inductance in series with a parallel circuit comprising a resistor and a capacitor.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: November 20, 1984
    Assignee: Compagnie d'Electronique et de Piezo-Electricite
    Inventors: Jacques Helle, Gerard Charlet