Patents by Inventor Andres Clarence Salazar

Andres Clarence Salazar 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).

  • Differential phase shift keying demodulator
    Patent number: 3991377
    Abstract: Disclosed is a Differential Phase Shift Keying demodulator employing a Hjlbert filter. Filtered and unfiltered signals are sampled at the symbol rate of an incoming signal, and the sampled signals are each applied to a delay element having a one-symbol period delay. The delayed and the undelayed replicas of the two sampled signals are linearly combined to form the demodulator's output signals.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: November 9, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Andres Clarence Salazar, Jean-Jacques Werner