Patents by Inventor Shmuel Frenkel

Shmuel Frenkel 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).

  • Delta modulator/demodulator with improved tracking of rapidly varying waveforms
    Patent number: 4633196
    Abstract: In a delta modulator/demodulator incorporating continuously variable slope circuitry (8, 9, 10), the current passed to an integrator (3) to increase its gain, is squared by a squaring circuit (13) in order to increase the sensitivity of the modulator/demodulator to fast rising and falling waveforms and high frequencies.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: December 30, 1986
    Assignee: Motorola, Inc.
    Inventors: Nahum Peled, Shmuel Frenkel