Patents by Inventor William T. Manning

William T. Manning 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).

  • Signal classifier
    Patent number: 4227255
    Abstract: A signal classifier performs measurements on an IF signal and determines from these measurements the nature of the modulation, if any, appearing on a received high frequency communications signal. The classifier distinguishes between double sideband AM, single sideband suppressed carrier voice AM, ASK, FSK, multi-channel FSK, unmodulated carrier and noise. The measurements include AM variation, the zero crossing rate in detected AM, the percentage of time the detected AM signal level exceeds a given amplitude, and wide and narrow band detected FM.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: October 7, 1980
    Assignee: Telcom, Inc.
    Inventors: Robert L. Carrick, William T. Manning, Robert E. Grimes