Patents by Inventor Xing Ll

Xing Ll 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).

  • Systems and methods for converting color image data to monochrome output
    Patent number: 7714901
    Abstract: When converting color input from a color scanner or the like to monochrome output, the measured luminance values are reduced, to help avoid the loss of text or other image portions in the monochrome output. The luminance reduction may be performed based on chrominance values.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: May 11, 2010
    Assignee: Xerox Corporation
    Inventor: Xing Ll