Patents by Inventor Frank W. Newdeck

Frank W. Newdeck 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 voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data
    Patent number: 4611342
    Abstract: An apparatus for use in transmitting compressed digital voice data includes an analyzer for compressing digitized voice data according to an algorithm which produces a root mean square of the voice data. An analog to digital converter is used to convert analog voice signals to digital data as an input to the analyzer. An AGC circuit controls to analog voice signal to keep it within predetermined limits for digitization, with the AGC setting being determined by the root mean square of the digitized data. The digitized data includes data representative of the root mean square adjusted by the inverse of the change induced by the AGC. A speech synthesizer expands the digitized data at a remote location to convert it back to analog speech signals.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: September 9, 1986
    Assignee: Racal Data Communications Inc.
    Inventors: William J. Miller, Ran F. Chiu, Richard B. Joerger, Frank W. Newdeck