Patents by Inventor Leslie H. String

Leslie H. String 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).

  • Automatic gain control circuit for radio receiver
    Patent number: 3931576
    Abstract: An intermediate frequency amplifier stage includes a tuned circuit which is shunted by a transistor utilized as an emitter follower, the emitter follower being responsive to the amplitude of a detected signal to lower the "Q" of the tuned circuit as the amplitude of the detected signal increases and to increase the "Q" of the tuned circuit as the amplitude of the detected signal decreases, thus effecting the gain of the intermediate frequency amplifier stage inversely respective the amplitude of the detected signal.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: January 6, 1976
    Assignee: General Electric Company
    Inventors: Antal Csicsatka, Leslie H. String