Patents by Inventor Robert Vallet

Robert Vallet 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).

  • Patent number: 4656648
    Abstract: The present invention relates to a process for the noncoherent demodulation of a linearly modulated digital signal with energy by constant symbol and a demodulator for performing this process. The process consists of demodulating a linearly modulated signal by a sequence of information symbols .alpha..sub.0, . . . , .alpha..sub.N-1 to which has been added a Gaussian white noise. The signal received is processed by the demodulator in order to obtain sequences of blocks of L data, containing all the information of the received signal. By means of a recursive algorithm, from said data is deduced a sequence of symbols .alpha..sub.0, . . . , .alpha..sub.N-1, maximizing an approximate probability function. The invention more particularly applies to satellite links and to vehicle radio communications.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: April 7, 1987
    Inventor: Robert Vallet