| Patent | Date |
|---|
Copier or scanner platen cover with fluorescent coating
Grant 7,058,350 - Hsieh , et al. June 6, 2 | 2006-06-06 |
Compact-dot reproduction of scanned halftone screens
Grant 6,683,702 - Loce , et al. January 27, 2 | 2004-01-27 |
Loose-gray-scale template matching
Grant 6,678,414 - Loce , et al. January 13, 2 | 2004-01-13 |
Detection and verification of scanning attributes
Grant 6,647,144 - Williams , et al. November 11, 2 | 2003-11-11 |
Compact high addressability rendering
Grant 6,608,701 - Loce , et al. August 19, 2 | 2003-08-19 |
Copier or scanner platen cover with fluorescent coating
App 20030133172 - Hsieh, Bing R. ; et al. | 2003-07-17 |
Detection and elimination of scanning artifacts
Grant 6,594,401 - Metcalfe , et al. July 15, 2 | 2003-07-15 |
Compact rendering for processing binary high addressability images
Grant 6,449,396 - Loce , et al. September 10, 2 | 2002-09-10 |
Method and system for image conversion utilizing dynamic error diffusion
Grant 6,427,030 - Williams , et al. July 30, 2 | 2002-07-30 |
Detection and verification of scanning attributes
App 20020067850 - Williams, Leon C. ; et al. | 2002-06-06 |
Method and system for classifying and processing of pixels of image data
Grant 6,229,923 - Williams , et al. May 8, 2 | 2001-05-08 |
Method and system for classifying and processing of pixels of image data
Grant 6,181,829 - Clark , et al. January 30, 2 | 2001-01-30 |
System and method of tonal correction of independent regions on a compound document
Grant 6,175,427 - Lehmbeck , et al. January 16, 2 | 2001-01-16 |
Method and system for storing error values for an image conversion process utilizing dynamic error diffusion
Grant 6,144,775 - Williams , et al. November 7, 2 | 2000-11-07 |
Bi-directional packing data device enabling forward/reverse bit sequences with two output latches
Grant 6,125,406 - Williams , et al. September 26, 2 | 2000-09-26 |
Hybrid error diffusion pattern shifting reduction using programmable threshold perturbation
Grant 5,809,177 - Metcalfe , et al. September 15, 1 | 1998-09-15 |
Method and system for implementing fuzzy image processing of image data
Grant 5,778,156 - Schweid , et al. July 7, 1 | 1998-07-07 |
Method and apparatus for gray screening
Grant 5,729,663 - Lin , et al. March 17, 1 | 1998-03-17 |
Scan image target locator system for calibrating a printing system
Grant 5,642,202 - Williams , et al. June 24, 1 | 1997-06-24 |
Method of high addressability error diffusion
Grant 5,608,821 - Metcalfe , et al. March 4, 1 | 1997-03-04 |
Apparatus and method for modulating image signals in a high addressability printing machine
Grant 5,606,648 - Walther , et al. February 25, 1 | 1997-02-25 |
System and method for implementing fast high addressability error diffusion process
Grant 5,528,384 - Metcalfe , et al. June 18, 1 | 1996-06-18 |
Method and apparatus for controlling the processing of digital image signals
Grant 5,513,282 - Williams April 30, 1 | 1996-04-30 |
Method for controlling the processing of digital image signals
Grant 5,390,029 - Williams , et al. * February 14, 1 | 1995-02-14 |
Automatic image segmentation with smoothing
Grant 5,327,262 - Williams July 5, 1 | 1994-07-05 |
Method and apparatus for controlling the processing of digital image signals
Grant 5,307,180 - Williams , et al. April 26, 1 | 1994-04-26 |
High addressability image generator using pseudo interpolation of video and screen data
Grant 5,274,472 - Williams December 28, 1 | 1993-12-28 |
Image scaling apparatus
Grant 5,237,432 - Calarco , et al. August 17, 1 | 1993-08-17 |
Screening circuit for variable angle screening of image pixels
Grant 5,223,953 - Williams June 29, 1 | 1993-06-29 |
Calibration improvement with dither for a raster input scanner
Grant 4,757,389 - Clark , et al. July 12, 1 | 1988-07-12 |
Screening circuit for screening image pixels
Grant 4,755,813 - Williams July 5, 1 | 1988-07-05 |
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