Patents by Inventor Roger Granek

Roger Granek 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).

  • Device for detecting the tuning frequency of a frequency modulation radio receiver
    Patent number: 4403345
    Abstract: A device comprising a demodulator, equipped with a frequency synthesizer for synthesizing different tuning frequencies, for use in radio receivers. The device further comprises a counter for counting the number of "clicks" at the demodulator output, for each tuning frequency. A microprocessor is provided for identifying the tuning frequency for which there is a minimum of "clicks," this being the correct tuning frequency. The microprocessor acts on the synthesizer for tuning the frequency of the synthesizer at the correct tuning frequency.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: September 6, 1983
    Assignee: Thomson-CSF
    Inventors: Roger Granek, Jean Hybre, Michel Drobecq