Patents by Inventor Keith Steward Hammond

Keith Steward Hammond 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 and method for video processing
    Patent number: 7903172
    Abstract: A video processing apparatus can receive video at two different rates, which may be High Definition video and Standard Definition Video. The input video is stored and read into a processor at a fixed internal rate for processing at that rate. Processed video is output to a further store from which it can be read at either of the input rates.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: March 8, 2011
    Assignee: Snell Limited
    Inventors: Edward Palgrave-Moore, Keith Steward Hammond
  • System and method for video processing
    Patent number: 7752248
    Abstract: Method and apparatus for decimating or sub-sampling image data which uses fixed delay intervals to accumulate a weighted sum of input samples. The accumulated sum is output at selected intervals, the interval determining the degree of decimation. The apparatus can take the form of a Finite Impulse Response (FIR) decimation filter. Decimation can be horizontal, vertical or temporal, and the decimation factor can be made non-integral.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: July 6, 2010
    Assignee: Snell Limited
    Inventors: Keith Steward Hammond, Martin Weston