Issued Patents All Time
Showing 176–200 of 218 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6574366 | Line and curve detection using local information | — | 2003-06-03 |
| 6542629 | Digital imaging method and apparatus for detection of document security marks | John W. Wu, Mike Chien-Fang Chen, Kien A. Phong | 2003-04-01 |
| 6529291 | Fuzzy black color conversion using weighted outputs and matched tables | Stuart A. Schweid, Jeng-Nan Shiau | 2003-03-04 |
| 6515764 | Method and apparatus for detecting photocopier tracking signatures | Keith T. Knox, Erie J. Schneider | 2003-02-04 |
| 6470168 | ACD using an added low resolution CCD to prevent even partial printout | William A. Fuss | 2002-10-22 |
| 6400844 | Method and apparatus for segmenting data to create mixed raster content planes | Ming Xu | 2002-06-04 |
| 6373981 | Method and apparatus for segmenting data to create mixed raster content planes | Ricardo L. de Queiroz, Trac D. Tran | 2002-04-16 |
| 6347115 | Method and system for predictive coding of images treated with the Roberts Method | Ying-wei Lin | 2002-02-12 |
| 6317524 | Anti-counterfeit detection method | John W. Wu, Mike Chien-Fang Chen, Kien A. Phong | 2001-11-13 |
| 6266157 | Method of error diffusion using 2.times.2 color correction and increment matching | Shen-Ge Wang | 2001-07-24 |
| 6249592 | Multi-resolution neutral color detection | Yeqing Zhang, Martin E. Banton | 2001-06-19 |
| 6240205 | Apparatus and method for segmenting and classifying image data | Kathy Ryall, Jeng-Nan Shiau, Shriram V. Revankar | 2001-05-29 |
| 6192155 | Systems and methods for reducing boundary artifacts in hybrid compression | — | 2001-02-20 |
| 6181813 | Method for counterfeit currency detection using orthogonal line comparison | John W. Wu, Felice A. Micco, Mike Chien-Fang Chen, Kien A. Phong | 2001-01-30 |
| 6178263 | Method of estimating at least one run-based font attribute of a group of characters | Robert Cooperman, Robert Shuchatowitz, Lucy Hadden, Emil V. Rainero, Frederick J. Roberts, Jr. | 2001-01-23 |
| 6157462 | Method and apparatus for error diffusion and undercolor removal/grey component replacement of digital color images | — | 2000-12-05 |
| 6101285 | Filter for producing continuous tone images from halftone digital images data | — | 2000-08-08 |
| 6075892 | Methods for determining font attributes of characters | Robert Cooperman, Robert Shuchatowitz, Lucy Hadden, Emil V. Rainero, Frederick J. Roberts, Jr. | 2000-06-13 |
| 6067374 | Seal detection system and method | John W. Wu, Mike Chien-Fang Chen | 2000-05-23 |
| 6026186 | Line and curve detection using local information | — | 2000-02-15 |
| 6014233 | Error diffusion for color images with semi-vector quantization | Steven J. Harrington | 2000-01-11 |
| 5966460 | On-line learning for neural net-based character recognition systems | Gilbert B. Porter, III, Frederick J. Roberts, Jr. | 1999-10-12 |
| 5953453 | Methods for determining font attributes of characters | Robert Cooperman, Robert Shuchatowitz, Lucy Hadden, Emil V. Rainero, Frederick J. Roberts, Jr. | 1999-09-14 |
| 5900952 | System for converting color image signals having high-frequency components from RGB to CMY color spaces | — | 1999-05-04 |
| 5883974 | Methods for determining font attributes of characters | Robert Cooperman, Robert Shuchatowitz, Lucy Hadden, Emil V. Rainero, Frederick J. Roberts, Jr. | 1999-03-16 |