Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8526727 | Hierarchical multidimensional lookup table generation | Raja Bala, Lalit Keshav Mestha | 2013-09-03 |
| 8488191 | Color mapping determination for an N-color marking device based upon image spatial noise defects | Edul N. Dalal, Wencheng Wu | 2013-07-16 |
| 8477371 | Color lookup table generation which minimizes interpolation errors over the entire color space of a color gamut | Zhigang Fan, R. Victor Klassen | 2013-07-02 |
| 8477370 | Color mapping determination for an N-color marking device based upon color stability | Edul N. Dalal, Wencheng Wu | 2013-07-02 |
| 8460781 | Infrared encoding of security elements using standard xerographic materials | Reiner Eschbach, Raja Bala | 2013-06-11 |
| 8455087 | Infrared encoding of security elements using standard xerographic materials with distraction patterns | Reiner Eschbach, Raja Bala | 2013-06-04 |
| 8451521 | Finding a locus of colorant formulations that produces a desired color | Raja Bala, Yonghui Zhao, Matthew F. Hoffmann | 2013-05-28 |
| 8395815 | System and method for modeling higher dimension color response | — | 2013-03-12 |
| 8305636 | Undercolor removal gray color replacement with improved device color linearity | Zhigang Fan, Yao Rong Wang, Alvaro Enrique Gil | 2012-11-06 |
| 8228556 | Control system for suppressing black in images | Lalit Keshav Mestha | 2012-07-24 |
| 8203752 | Printer profiling methods, apparatus and systems for determining device and gain matrix values | Alvaro Enrique Gil, Lalit Keshav Mestha | 2012-06-19 |
| 8194288 | Adjusting the neutral behavior of a color marking device | Zhenhuan Wen | 2012-06-05 |
| 8184340 | Method for color rendering using scanned halftone classification | Robert P. Loce, Jay S. Grzenda | 2012-05-22 |
| 8154765 | Methods and algorithms for adjusting gloss levels in printers | Connie F. Purdum, Lalit Keshay Mestha, Frederick J. Ramsey, Alvaro Enrique Gil | 2012-04-10 |
| 8134547 | Merit based gamut mapping in a color management system | Alvaro Enrique Gil, Lalit Keshav Mestha | 2012-03-13 |
| 8111432 | Infrared watermarking of photographic images by matched differential black strategies | Reiner Eschbach | 2012-02-07 |
| 7965421 | Show-through reduction method and system | Zhigang Fan, Reiner Eschbach, Judith E. Stinehour | 2011-06-21 |
| 7952759 | Methods, apparatus and systems for blending multiple GCRS | Yao Rong Wang, Alvaro Enrique Gil, Lalit Keshav Mestha | 2011-05-31 |
| 7884964 | Methods and systems for controlling out-of-gamut memory and index colors | Raja Bala, Lalit Keshav Mestha | 2011-02-08 |
| 7835033 | Gamut boundary separated print system profiling methods and systems | Raja Bala, Lalit Keshav Mestha, Alvaro Enrique Gil | 2010-11-16 |
| 7768682 | Method and apparatus for optimum black component determination for gray component replacement | Lalit Keshav Mestha, Yao Rong Wang, Alvaro Enrique Gil, Raja Bala | 2010-08-03 |
| 7684084 | Multiple dimensional color conversion to minimize interpolation error | Zhigang Fan, Lalit Keshav Mestha, Yao Rong Wang, Alvaro Enrique Gil | 2010-03-23 |
| 7639393 | Systems and methods for adjusting spot color inks | Paul M. Butterfield | 2009-12-29 |
| 7576885 | Balancing grays on color printers | Meng Yao | 2009-08-18 |
| 7557955 | System and method for matching colorimetric attributes of a production print to a proof | Sang-Chul Kang, Robert J. Rolleston, Charles M. Hains | 2009-07-07 |