Patents by Inventor Denis Gombault

Denis Gombault 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).

  • Method of coherent modulation and demodulation for high frequency data transmission at high bit rate
    Patent number: 5572548
    Abstract: The method is of the type featuring a parallel transmission, over a predetermined number of transmission frequencies at a low bit rate, of useful information signals modulated at a predetermined phase shift keying. A parallel transmission on all the frequencies of the frames of useful signals and of frames of reference signals is performed, a frame of reference signals being inserted between two neighboring useful frames, and each reference signals being alternated with a useful signal in each frame of the reference signals. Such a method finds particular application to the digital transmission of speech.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 5, 1996
    Assignee: THOMSON-CSF
    Inventors: Didier Pirez, Denis Gombault