Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6208753 | Quality of digitized images through post-scanning reregistration of their color planes | Gordon W. Braudaway, James E. Christensen | 2001-03-27 |
| 6172769 | Printer dependent descreening method | Ravishankar Rao, Charles P. Tresser, Chai Wah Wu | 2001-01-09 |
| 6088123 | Dithering masks with very large periods | Roy L. Adler, Charles P. Tresser, Chai Wah Wu | 2000-07-11 |
| 6055065 | Printer independent halftone image rendering | Ravishankar Rao, Charles P. Tresser, Chai Wah Wu | 2000-04-25 |
| 6025930 | Multicell clustered mask with blue noise adjustments | Charles P. Tresser, Chai Wah Wu | 2000-02-15 |
| 5943477 | Microlocal calibration of digital printers | Ravishankar Rao, Charles P. Tresser, Chai Wah Wu | 1999-08-24 |
| 5917951 | Clustered aperiodic mask | Charles P. Tresser, Chai Wah Wu | 1999-06-29 |
| 5053887 | Technique for producing a fine grained dithered halftone image having an increased number of gray levels | — | 1991-10-01 |
| 4654721 | System for reproducing multi-level digital images on a bi-level printer of fixed dot size | Gerald Goertzel | 1987-03-31 |
| 4435782 | Data processing system with high density arithmetic and logic unit | Dan Kaufman | 1984-03-06 |