Patents by Inventor Richard E. Olney

Richard E. Olney 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).

  • Electronic device for subtracting signals and associated system employing such device
    Patent number: 4236048
    Abstract: An electronic device comprises separate channels for receiving input signals representative of an undesired signal and a composite signal, envelope detectors for detecting amplitude envelopes of signals representative of the input signals, and an electronic subtractor for determining the electronic difference between the envelope signals to produce an output signal indicative of a desired signal. The device is employed particularly for cancelling the effect of the telephone sidetone signal in a telephone to yield an output signal indicative of the telephone maintone signal.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: November 25, 1980
    Assignee: Fairchild Camera & Instrument Corporation
    Inventor: Richard E. Olney