Patents by Inventor Stephen M. Parkes

Stephen M. Parkes 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).

  • System for binary tree searched vector quantization data compression processing each tree node containing one vector and one scalar to compare with an input vector
    Patent number: 5396625
    Abstract: Data compression processing is carried out using binary Tree-Searched Vector Quantization in which the direction of branching at each node of the tree is decided by comparison of an input vector (6) with a single code vector (B(n)) and an associated Scalar value (A).
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: March 7, 1995
    Assignee: British Aerospace Public Ltd., Co.
    Inventor: Stephen M. Parkes
  • Digital chirp generator
    Patent number: 5311193
    Abstract: A digital chirp generator for generating linear frequency modulated signals, comprises a plurality of frequency/phase accumulators pipelined together. Each frequency/phase accumulator includes a frequency accumulator driving phase accumulator. In the pipelined configuration the frequency accumulator and the phase accumulator of each frequency/phase accumulator are interconnected with the corresponding frequency accumulator and phase accumulator adjacent of the frequency/phase accumulator.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: May 10, 1994
    Assignee: British Aerospace Public Limited Company
    Inventor: Stephen M. Parkes