Patents by Inventor William M. Markowitz

William M. Markowitz 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).

  • Phase-coherent frequency synthesis with a DDS circuit
    Patent number: 6066967
    Abstract: An improved circuit and technique for obtaining phase-coherent synthesis using a direct digital synthesizer (DDS). In the phase-coherent frequency synthesis device of the invention, a computational engine constructed from a large programmable gate array, a digital signal processing microprocessor, or a number of discrete digital logic blocks generates information sent to the DDS for generating an output frequency, .function..sub.out, which is in phase with all previous outputs of the device at the same frequency.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: May 23, 2000
    Assignee: Sensytech, Inc.
    Inventors: James P. Cahill, William M. Markowitz