Patents by Inventor Wynn Rees

Wynn Rees 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).

  • Alias detection and avoidance process used in the processing of video signals
    Patent number: 5623317
    Abstract: A method and apparatus for combining video signals with key signals whilst maintaining the integrity of the video signal and minimizing the effect of alias components. An analyser detects whether there are any high frequency components which would otherwise cause alias components. If such high frequency components are present, then low-pass filtering occurs. If such high frequency components are not present, then no unnecessary filtering occurs so as to maintain the absolute integrity of the video signal.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: April 22, 1997
    Inventors: Roger Robinson, Alan Cosgrove, David Leftley, Wynn Rees