Patents by Inventor Sydney T. Fisher

Sydney T. Fisher 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 of codebook generation for an amplitude-adaptive vector quantization system
    Patent number: 5966471
    Abstract: The present invention relates to the field of vector quantization of transmitted imagery. In particular, the invention is a method for automatically generating a codebook for use in the transmitter and receiver components of an amplitude-adaptive normalized differential vector quantization system based upon a specified signal-to-noise ratio goal. In accordance with this method, the specified signal-to-noise ratio goal automatically derives the amplitude thresholds and other required data to determine the tradeoff between image quality and data compression for the transmitted imagery.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: October 12, 1999
    Assignee: United States of America
    Inventors: Sydney T. Fisher, Charles D. Bodson