Patents by Inventor Philip D. Carmichael

Philip D. Carmichael 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).

  • Digital divider with integer and fractional division capability
    Patent number: 4837721
    Abstract: A digital divider with both integral and fractional division capabilities is provided by utilization of a counter and one decoder to trigger phase reversal and a second decoder to trigger short-cycling of the counter. The first decoder provides phase reversal to cause extra half pulses during the period established by the second decoder to thus create the fractional count needed for fractional division. A control input is included to select either whole number division or fractional division.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: June 6, 1989
    Assignee: ITT Defense Communications, A Division of ITT Corporation
    Inventors: Philip D. Carmichael, Thomas E. Finley