Patents by Inventor Chung-Mei Sung

Chung-Mei Sung 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 for changing color printing mode or substituting marking materials in a highlight color printing machine
    Patent number: 5524181
    Abstract: There is provided a method of printing a job in a printing system adapted to produce prints, representative of the job, with one or more marking materials. The method includes the steps of programming the job to produce a first selected quantity of prints with a first marking material or a second marking material in the event the first marking material is unavailable, and determining that the printing system is unable to produce the first selected quantity of prints with the first marking material. In response to the determining step, the printing machine produces the first selected quantity of prints with the second marking material.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: June 4, 1996
    Assignee: Xerox Corporation
    Inventors: Chung-Mei Sung, Wilbert D. Douglas
  • Scheduling color variations for discrete job elements
    Patent number: 5319464
    Abstract: A system for providing a memory for storing electronic images with color mode marks and a control for providing images in optional color modes for producing a set of images with discrete elements of the set of images processed in a selected color mode independent of the color mode other elements. This is accomplished by identifying elements of the set of images with color code marks and responding to the color code marks to alter the operation of the machine dependent upon the identified color mode mark. The machine pitches are also changed to provide additional features such as simplex and duplex mode to selected images.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: June 7, 1994
    Assignee: Xerox Corporation
    Inventors: Wilbert D. Douglas, Chung-Mei Sung
  • Scheduling color variations for discrete job elements
    Patent number: 5281998
    Abstract: A system for providing a memory for storing electronic images with color mode marks and a control for providing images in optional color modes for producing a set of images with discrete elements of the set of images processed in a selected color mode independent of the color mode other elements. This is accomplished by identifying elements of the set of images with color code marks and responding to the color code marks to alter the operation of the machine dependent upon the identified color mode mark. The machine pitches are also changed to provide additional features such as simplex and duplex mode to selected images.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: January 25, 1994
    Assignee: Xerox Corporation
    Inventors: Wilbert D. Douglas, Chung-Mei Sung