Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834344 | Semi-fragile watermarks | Gaurav Aggarwal, Pradeep Kumar Dubey, Ashutosh Kulshreshtha, Marco Martens, Charles P. Tresser | 2004-12-21 |
| 6807530 | Method and apparatus for remote commerce with customer anonymity | Michael Shub, Charles P. Tresser | 2004-10-19 |
| 6807634 | Watermarks for customer identification | Gordon W. Braudaway, Marco Martens, Frederick C. Mintzer, James B. Shearer, Charles P. Tresser | 2004-10-19 |
| 6801220 | Method and apparatus for adjusting subpixel intensity values based upon luminance characteristics of the subpixels for improved viewing angle characteristics of liquid crystal displays | Paul F. Greier, Kenneth C. Ho, Richard I. Kaufman, Steven E. Millman, Gerhard Robert Thompson +1 more | 2004-10-05 |
| 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 | Marco Martens, Ravishankar Rao, Gerhard Robert Thompson, Charles Tresser | 2004-05-18 |
| 6737954 | Event-recorder for transmitting and storing electronic signature data | Timothy J. Chainer, Claude A. Greengard, Charles P. Tresser | 2004-05-18 |
| 6714318 | Dithering method and apparatus for multitone printers | Charles H. Morris, III, Joan L. Mitchell, Gerhard Robert Thompson, Charles P. Tresser, Nenad Rijavec | 2004-03-30 |
| 6687023 | Data processing system and method for producing shifted-element halftone screens | Danielle Kathyrn Dittrich, Larry M. Ernst, Gerhard Robert Thompson | 2004-02-03 |