Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834344 | Semi-fragile watermarks | Gaurav Aggarwal, Pradeep Kumar Dubey, Ashutosh Kulshreshtha, Charles P. Tresser, Chai Wah Wu | 2004-12-21 |
| 6817538 | Method and system for preventing parallel marketing of wholesale and retail items | Ali Afzali-Ardakani, Claudius Feger, Paul A. Moskowitz, Alejandro G. Schrott, Charles P. Tresser +1 more | 2004-11-16 |
| 6807634 | Watermarks for customer identification | Gordon W. Braudaway, Frederick C. Mintzer, James B. Shearer, Charles P. Tresser, Chai Wah Wu | 2004-10-19 |
| 6746053 | System for preventing parallel marketing of retail items | Ali Afzali-Ardakani, Claudius Feger, Paul A. Moskowitz, Alejandro G. Schrott, Charles P. Tresser +1 more | 2004-06-08 |
| 6738162 | Digital printer for avoiding moire patterns by using a dithering mask and angular rotation between print head and print medium to simulate analog printer halftoning of color images | Ravishankar Rao, Gerhard Robert Thompson, Charles Tresser, Chai Wah Wu | 2004-05-18 |
| 6678423 | Shift and/or merge of transformed data along two axes | Timothy James Trenary, Joan LaVerne Mitchell, Charles A. Micchelli | 2004-01-13 |
| 6675185 | Hybrid domain processing of multi-dimensional transformed data | Joan LaVerne Mitchell, Timothy James Trenary | 2004-01-06 |