Patents by Inventor David J. Guizerix

David J. Guizerix 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).

  • Method and apparatus for squelching dependent on detected bond rate to reduce unwanted audible noise on a mixed voice data channel
    Patent number: 4972510
    Abstract: Unwanted audible noise on a mixed voice data channel is reduced by disabling an audio output device in a radio receiver or transceiver when the receiver determines that the RF signal received contains binary digital bit data. Alternatively, the receiver enables the audio output device when it determines that the RF signal received does not contain binary digital bit data.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: November 20, 1990
    Assignee: Motorola, Inc.
    Inventors: David J. Guizerix, Linda M. Trine, William G. Siegel