Patents by Inventor John Eric Ruetz

John Eric Ruetz 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).

  • Slow transition time phase frequency detector and method
    Patent number: 5805002
    Abstract: A phase frequency detection circuit and method in a phase lock loop circuit uses delay circuits to limit the period of expression of up and down signals which adjust the output frequency of a voltage controlled oscillator. The pulse frequency detection circuit includes cross-linked latches to drive logic gates which produce output signals for adjusting the output frequency of a voltage controlled oscillator and delay circuitry connected to the outputs of particular logic gates for selective nullification of up and down control signals to a voltage controlled oscillator.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: September 8, 1998
    Assignee: IC Works, Inc.
    Inventor: John Eric Ruetz