Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7436549 | Patch codes for color calibration job identification encoding | Dennis L. Venable | 2008-10-14 |
| 7307752 | On-line calibration system for a dynamically varying color marking device | Lingappa K. Mestha, Peter A. Crean, Martin S. Maltz, Robert J. Rolleston, Yao Rong Wang +1 more | 2007-12-11 |
| 7215440 | Fast interpolation of large color lookup tables | R. Victor Klassen | 2007-05-08 |
| 7085004 | Calibration system for document processing system including visual layout validation for target measurements | Gaurav Sharma | 2006-08-01 |
| 7072072 | Color rendering optimized for text and line art | Reiner Eschbach | 2006-07-04 |
| 7064860 | Color-balanced TRC correction to compensate for illuminant changes in printer characterization | Shen-Ge Wang | 2006-06-20 |
| 6972867 | Patch codes for color calibration job identification encoding | Dennis L. Venable | 2005-12-06 |
| 6954287 | Gamut mapping preserving local luminance differences with adaptive spatial filtering | Ricardo L. de Queiroz, Reiner Eschbach, Wencheng Wu | 2005-10-11 |
| 6819792 | Automatic detection of colorimetry of unknown CMYK images | — | 2004-11-16 |
| 6803921 | Use of softproofing to assist in the rendering of images of unknown colorimetry | Robert J. Rolleston, Stephen Herron, Katherine Loj | 2004-10-12 |
| 6766051 | Adaptive tree-base lookup for non-separably divided color tables | R. Victor Klassen | 2004-07-20 |
| 6766053 | Method and apparatus for classifying images and/or image regions based on texture information | Zhigang Fan | 2004-07-20 |
| 6744534 | Robust colorimetry transform | Robert J. Rolleston | 2004-06-01 |
| 6731796 | Graphical user interface for color transformation table editing that avoids reversal artifacts | Martin S. Maltz, R. Victor Klassen | 2004-05-04 |
| 6707938 | Principal axis look-up for color correction | Ricardo L. de Queiroz | 2004-03-16 |
| 6654143 | Printer characterization adjustment for different papers | Edul N. Dalal, D. Rene Rasmussen, Gaurav Sharma, Mark Q. Shaw, Michael E. Farrell +1 more | 2003-11-25 |
| 6646762 | Gamut mapping preserving local luminance differences | Ricardo L. de Queiroz, Karen M. Braun, Reiner Eschbach | 2003-11-11 |
| 6621498 | High-speed non-separable color table lookup | John C. Handley | 2003-09-16 |
| 6441923 | Dynamic creation of color test patterns based on variable print settings for improved color calibration | Reiner Eschbach, Paul G. Roetling | 2002-08-27 |
| 6414690 | Gamut mapping using local area information | Karen M. Braun | 2002-07-02 |
| 6381037 | Dynamic creation of color test patterns for improved color calibration | Reiner Eschbach, Paul G. Roetling | 2002-04-30 |
| 6342951 | Gamut mapping algorithm using inverted gamma function | Reiner Eschbach, Karen M. Braun, William A. Fuss | 2002-01-29 |
| 6335800 | Method of multidimensional interpolation for color transformations | — | 2002-01-01 |
| 6307645 | Halftoning for hi-fi color inks | David A. Mantell | 2001-10-23 |
| 6295137 | Method of color correction using multi-level halftoning | — | 2001-09-25 |