Patents by Inventor Val D. Vaughn

Val D. Vaughn 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).

  • Memory based vector quantization
    Patent number: 5300931
    Abstract: Apparatus is provided for performing two stages of high-speed compression of vector data inputs. Two input channels of vector data are compressed and encoded through a vector quantizer encoder to provide a first stage of data compression. The output of the first encoder is further decoded then compressed and encoded in a novel high-speed computing mapping means which may be implemented in the form of a look-up table. Vector quantized encoded output is double the previous data compression of a single stage. The second stage of data compression causes very little degradation of the data from the first stage of data compression.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: April 5, 1994
    Assignee: UNISYS Corporation
    Inventors: Robert A. Lindsay, Patrick S. Grant, Val D. Vaughn