Patents by Inventor Lex Scott

Lex Scott 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).

  • Preset network for a phase lock loop
    Patent number: 4238739
    Abstract: A phase lock loop (10) includes a frequency and phase preset network for presetting a local oscillator (20) in substantial synchronism with a carrier signal. The preset network utilizes time delayed output signals from split or double correlators (32, 34, 36, 38) to determine a change in the phase angle between the local oscillator signal and the carrier signal for a known time period to determine the frequency of the local oscillator signal relative to the carrier signal frequency. The preset network determines the phase of the local oscillator signal relative to the carrier signal phase utilizing the summed output of one split correlator (32 and 34) and of another split correlator (36 and 38).
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: December 9, 1980
    Assignee: E-Systems, Inc.
    Inventors: William H. Mosley, Carl F. Andren, Lex Scott