Patents by Inventor John P. Bolton

John P. Bolton 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 signal processing
    Patent number: 5202847
    Abstract: Digital signal processing circuitry for calculating separable two dimensional linear transforms on blocks of data elements includes two processors coupled as a linear pipeline. Each processor carries out a one dimensional linear transform effecting multiplication of transform coefficients by repeated addition in a carry save adder network to form a plurality of inner products. The two processors may effect simultaneously different transforms on respective blocks of data.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: April 13, 1993
    Assignee: Inmos Limited
    Inventors: John P. Bolton, Kenneth N. Burgin