Patents by Inventor Shultz Chan

Shultz Chan 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).

  • Method and apparatus for quantizing a color image through a single dither matrix
    Patent number: 6862111
    Abstract: This invention relates to a color image dithering method and apparatus for producing an output point in an output color space corresponding to a selected vertex in a tetrahedron of a three-dimensional cubic subinterval of a pixel point in a source color space.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: March 1, 2005
    Assignee: PictoLogic, Inc.
    Inventors: Frederick Lin, Shultz Chan
  • Method and apparatus for quantizing a color image through a single dither matrix
    Publication number: 20020008885
    Abstract: This invention relates to a color image dithering method and apparatus for producing an output point in an output color space corresponding to a selected vertex in a tetrahedron of a three-dimensional cubic subinterval of a pixel point in a source color space.
    Type: Application
    Filed: January 31, 2001
    Publication date: January 24, 2002
    Inventors: Frederick Lin, Shultz Chan