Patents by Inventor Xavier Guitton

Xavier Guitton 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).

  • Monolithically integrable frequency demodulator device
    Patent number: 5903187
    Abstract: Frequency modulated signals are demodulated through a limiter circuit that chops the signal to give pulses whose occurrence frequency is proportional to the instant frequency of the received signal. The invention is devoted to a new processing of those pulses. The leading edges of the pulses are time integrated. The obtained signal is then as usual, low pass filtered to give the demodulated signal. The main advantage of this new processing is that the circuit that makes this processing does not implement delay lines and can then be made as a single chips.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: May 11, 1999
    Assignee: Thomson Broadcast Systems
    Inventors: Claude Claverie, Xavier Guitton