Patents by Inventor Alan Entenman

Alan Entenman 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).

  • Phase modulated data transmission system
    Patent number: 4217551
    Abstract: A data transmission system, particularly useful for transmission of computer data by radio frequency cables, makes use of a phase demodulator which eliminates the usual requirement for a coherent local oscillator for use in the demodulation process. The demodulator performs a phase-shifting operation on a phase modulated signal to arrive at an unmodulated carrier signal. The unmodulated carrier is sustained by use of a resonant circuit and used to demodulate the phase modulated signal.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: August 12, 1980
    Assignee: Intech Laboratories, Inc.
    Inventor: Alan Entenman