Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6603573 | Constrained digital halftoning | Roy L. Adler, Marco Martens, Joan L. Mitchell, Nenad Rijavec, Robert H. Risch +1 more | 2003-08-05 |
| 6597813 | Masks with modulated clustering and aperiodicity and rescaling of masks | Mikel Stanich, Gerhard Robert Thompson, Charles P. Tresser | 2003-07-22 |
| 6564322 | Method and apparatus for watermarking with no perceptible trace | David H. Jameson, Charles P. Tresser, Steven R. Abrams, Shmuel Windgrad | 2003-05-13 |
| 6525672 | Event-recorder for transmitting and storing electronic signature data | Timothy J. Chainer, Claude A. Greengard, Charles P. Tresser | 2003-02-25 |
| 6515770 | Dither mask generation with calibration-independent number of threshold levels | Ravishankar Rao, Gerhard Robert Thompson, Charles P. Tresser | 2003-02-04 |
| 6501390 | Method and apparatus for securely determining aspects of the history of a good | Timothy J. Chainer, Claude A. Greengard, William Robert Pulleyblank, Charles P. Tresser | 2002-12-31 |
| 6450403 | Method and apparatus for depositing ordinary checks from home or office | Marco Martens, Charles P. Tresser, Robert J. von Gutfeld | 2002-09-17 |
| 6397334 | Method and system for authenticating objects and object data | Timothy J. Chainer, Claude A. Greengard, Paul A. Moskowitz, Alejandro G. Schrott, Charles P. Tresser +1 more | 2002-05-28 |
| 6275599 | Compressed image authentication and verification | Roy L. Adler, Bruce P. Kitchens, Charles P. Tresser | 2001-08-14 |
| 6256736 | Secured signal modification and verification with privacy control | Don Coppersmith, Frederick C. Mintzer, Charles P. Tresser, Minerva M. Yeung | 2001-07-03 |
| 6172769 | Printer dependent descreening method | Ravishankar Rao, Gerhard Robert Thompson, Charles P. Tresser | 2001-01-09 |
| 6115616 | Hand held telephone set with separable keyboard | Arnold Halperin, Joseph D. Rutledge, Alejandro G. Schrott, Charles P. Tresser, Robert J. von Gutfeld | 2000-09-05 |
| 6101001 | Target patterns controlled error management | Charles P. Tresser | 2000-08-08 |
| 6088123 | Dithering masks with very large periods | Roy L. Adler, Gerhard Robert Thompson, Charles P. Tresser | 2000-07-11 |
| 6069955 | System for protection of goods against counterfeiting | Don Coppersmith, Claude A. Greengard, Charles P. Tresser | 2000-05-30 |
| 6064701 | Synchronization-based communication systems | Charles P. Tresser | 2000-05-16 |
| 6055065 | Printer independent halftone image rendering | Ravishankar Rao, Gerhard Robert Thompson, Charles P. Tresser | 2000-04-25 |
| 6028907 | System and method for three-dimensional geometric modeling by extracting and merging two-dimensional contours from CT slice data and CT scout data | Roy L. Adler, Alan David Kalvin, Joseph Y. Margulies, Charles P. Tresser | 2000-02-22 |
| 6025930 | Multicell clustered mask with blue noise adjustments | Gerhard Robert Thompson, Charles P. Tresser | 2000-02-15 |
| 6023495 | System and method for acquiring three-dimensional data subject to practical constraints by integrating CT slice data and CT scout images | Roy L. Adler, Alan David Kalvin, Joseph Y. Margulies, Charles P. Tresser | 2000-02-08 |