Patents by Inventor MacLellan Emshwiller

MacLellan Emshwiller 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).

  • Synchronizing circuit
    Patent number: 4039968
    Abstract: A circuit for synchronizing a microwave oscillator with a reference source of known frequency. The synchronizing circuit includes a phase-lock loop which compares the output of a free-running, crystal-controlled, voltage-controlled oscillator with the output of a burst oscillator. The output of the burst oscillator has a comb spectrum comprising harmonics of the reference frequency and the phase-lock loop locks onto a selected one of the comb harmonics.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: August 2, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: MacLellan Emshwiller