Patents by Inventor Huub Van Den Broek

Huub Van Den Broek 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).

  • Flicker-free adaptive thresholding for ambient light derived from video content mapped through unrendered color space
    Patent number: 7859595
    Abstract: Flicker free operation of ambient light sources that emulate video content during low luminance conditions, where the ambient light source is output thresholded so that an on/off change of state of the ambient light source can be initiated after an intensity variable passes one or two thresholds. Output thresholding is used when extracting and processing video content encoded in a rendered color space, which can be decoded into frames tapped by an interframe interpolation process using only color information from selected frames, such as extracting average or other color information from an selected screen regions. Negative gamma correction helps prevent garish or inappropriate chromaticities and lumina.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: December 28, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Srinivas Gutta, Elmo M. A. Diederiks, Huub Van Den Broek