Patents by Inventor Robert A. Ennis Jr.

Robert A. Ennis Jr. 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).

  • Linking keyers to background source selections
    Patent number: 6452643
    Abstract: Linking keyers to background source selections is achieved by defining a key link association table between background sources and keyers for an M/E of a production switcher. Key Add and Key Drop modifiers are provided so that the effects of the key link association table may be modified while making a background source change.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: September 17, 2002
    Assignee: Grass Valley (US), Inc.
    Inventors: Kevin D. Windrem, Robert A. Ennis Jr., Michael Krim