Patents by Inventor Frederick Ellner

Frederick Ellner 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).

  • Solid-state, color-balanced backlight with wide illumination range
    Publication number: 20070171670
    Abstract: A color balanced solid-state backlight provides feedback control of each color using a single photodetector by imposing a modulation pattern on the solid-state lamps revealing individual colors to the photodetector. The photodetector signal provides feedback controlling color balance over a small range of instantaneous brightness less than larger range of average brightness of the display to provide for accurate color balance throughout a large range of average brightnesses.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 26, 2007
    Inventors: Peter Zagar, Frederick Ellner, Hans Hansen