Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6956670 | Method, system, program, and data structures for halftoning with line screens having different lines per inch (LPI) | Danielle Kathyrn Dittrich, Joan LaVerne Mitchell, Fritz Heinrich Obermeyer, Chai Wah Wu | 2005-10-18 |
| 6947178 | De-screening halftones using sigma filters | Chungkui Kuo, Ravishankar Rao | 2005-09-20 |
| 6922196 | Priority-driven dither | Ravishankar Rao | 2005-07-26 |
| 6870643 | Method and system for error diffusion with a plurality of error measures | Steven L. Wright, Chai Wah Wu | 2005-03-22 |