Patents by Inventor Paul J. Weihs

Paul J. Weihs 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).

  • Publication number: 20020001056
    Abstract: A microdisplay includes a base substrate having an actively addressable array thereon. Multiple electrical contacts connect the array to an electrical input circuit. A covering substrate is disposed over the base substrate and has a conducting layer thereon. The conducting layer is electrically coupled to an opposing electrical terminal to the electrical input circuit. An electro-optic material is disposed between the conducting layer of the covering substrate and the base substrate.
    Type: Application
    Filed: April 3, 2001
    Publication date: January 3, 2002
    Inventors: Edmund Sandberg, Arthur L. Berman, Gregory A. Prior, Paul J. Weihs
  • Patent number: 6052157
    Abstract: A method and system for separating chrominance and luminance information from a composite spectral signal is disclosed. The method and system comprises demodulating the composite signal prior to separation of the chrominance or luminance information to provide a first U subcomponent and a first V subcomponent and then processing and filtering the first U subcomponent and the first V subcomponent to provide a second U subcomponent and a second V subcomponent, respectively. The method and system also includes combining the second U subcomponent and the second V subcomponent to provide the remodulated chrominance information. In so doing chrominance information is provided in which artifacts are substantially attenuated.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: April 18, 2000
    Assignee: Innovision Labs
    Inventor: Paul J. Weihs
  • Patent number: 5936621
    Abstract: A system and method for reducing flicker in a display system using a flicker reduction circuit. The display includes a series of scan lines, each of which includes a set of pixels. The display is controlled by a video signal, which includes a series of video lines containing control variables that control the intensity of the pixels in the corresponding scan line. In one embodiment of the flicker reduction circuit, the flicker reduction circuit receives two of the video lines as input, and delays one of the one video lines using a memory, such that its control variables are synchronized in time with the other undelayed video line. The difference between the intensity of the synchronized pairs of control variables is determined, and the difference is fed into a look-up table. Based on the difference, the look-up table provides a control value that is then applied to one of the original synchronized control variables to provide a modified control variable that reduces flicker on the display screen.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: August 10, 1999
    Assignee: Innovision Labs
    Inventors: David Medin, Paul J. Weihs