Patents by Inventor Jean-Marie Nef

Jean-Marie Nef 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).

  • Distortion corrector for wide-band transistorized amplification stages
    Patent number: 4119923
    Abstract: Corrector consisting in arranging, in the circuit of an electrode of a transistor, or between two transistorized stages, of an amplifier to be corrected, a circuit equipped with at least one varactor in parallel with a resistance and fed by the current flowing through the transistor or transistors under a source impedance which is sufficiently low by comparison with that of this circuit, the effects of the variation in the capacitance of the varactor or varactors, in dependence upon the signal, compensating those due to this varactor effect.
    Type: Grant
    Filed: November 15, 1977
    Date of Patent: October 10, 1978
    Assignee: Thomson-CSF
    Inventors: Philippe Legendre, Jean-Marie Nef