Patents by Inventor Monique Dechambre

Monique Dechambre 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).

  • Frequency measurement method and device
    Patent number: 4670712
    Abstract: For measuring the frequency of a sine shaped signal accompanied by noise, for example Gaussian noise, in an input signal, that input signal is applied to two measuring arms, possibly after heterodyning. One arm includes a counter for counting the zero crossings of the signal. The other arm includes a derivator and a second counter for counting zero crossings. A processing circuit determines the frequency and the signal-to-noise ratio from the measurements.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: June 2, 1987
    Assignee: Etat Francais
    Inventors: Jacques Lavergnat, Monique Dechambre