Patents by Inventor Michael B. Michalik

Michael B. Michalik 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).

  • Patent number: 5841522
    Abstract: A phase detector includes a mixer circuit responsive to an input signal and a reference signal to produce an error signal which is a function of the phase difference between the input signal and the reference signal; a phase shifting circuit varies the phase difference between the input and reference signals; a control circuit responsive to the error signal provides a drive signal to the phase shifting circuit to set to quadrature the phase difference between the input and reference signals; and a phase indicator device responsive to the drive signal indicates the phase difference between the component and reference signals.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: November 24, 1998
    Assignee: Lumen Laboratories, Inc.
    Inventors: Robert F. Dillon, Michael B. Michalik