Patents by Inventor Paul Lopez Kennedy

Paul Lopez Kennedy 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).

  • Voice decoder and method for detecting channel errors using spectral energy evolution
    Patent number: 6658112
    Abstract: A voice decoder detects channel errors and loss of cryptographic synchronization using the change in spectral energy between sequential frames. The change in energy between frames is determined between corresponding LSP's of said successive frames and summed together. A running average of the change in energy for a predetermined number of frames is maintained. Current voice frames are eliminated based on the difference between the change in energy associated with the current frame and the running average. Accordingly, offensive audio associated with such channel errors or cryptographic synchronization loss is eliminated.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: December 2, 2003
    Assignee: General Dynamics Decision Systems, Inc.
    Inventors: David L. Barron, William Chunhung Yip, Paul Lopez Kennedy