Patents by Inventor William Lester Plishker

William Lester Plishker 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).

  • Color calibration color value correction
    Patent number: 7286261
    Abstract: Correcting color values for color calibration is disclosed. A sensor measures a color calibration pattern output by a device, to color values for the patch. Corrective action(s) are then performed on the color values. A first such action corrects for measurement corruption of a patch color of the patch resulting from the sensor erroneously measuring adjacent patch colors to the desired patch color. A second action corrects for non-parallel motion of the sensor while measuring the patch. A third corrective action corrects for ambient light detected by the sensor while measuring the patch, without necessarily filtering the sensor. A final action corrects for slow-drift measurement corruption of the patch, by both scaling and offsetting the color values.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: October 23, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Algird M Gudaitis, William Lester Plishker
  • Color calibration color value correction
    Publication number: 20030063338
    Abstract: Correcting color values for color calibration is disclosed. A sensor measures a color calibration pattern output by a device, to color values for the patch. Corrective action(s) are then performed on the color values. A first such action corrects for measurement corruption of a patch color of the patch resulting from the sensor erroneously measuring adjacent patch colors to the desired patch color. A second action corrects for non-parallel motion of the sensor while measuring the patch. A third corrective action corrects for ambient light detected by the sensor while measuring the patch, without necessarily filtering the sensor. A final action corrects for slow-drift measurement corruption of the patch, by both scaling and offsetting the color values.
    Type: Application
    Filed: October 2, 2001
    Publication date: April 3, 2003
    Inventors: Algird M. Gudaitis, William Lester Plishker