Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7733533 | Generating threshold values in a dither matrix | Mikel Stanich, Chai Wah Wu | 2010-06-08 |
| 7616347 | System and method for multi-bit halftoning | Hong Li, Mikel Stanich, Chai Wah Wu | 2009-11-10 |
| 7599097 | Method and system for designing multilevel halftone screens using spot functions | Hong Li, Mikel Stanich, Chai Wah Wu | 2009-10-06 |
| 7593600 | Black white image scaling for optical character recognition | Ravinder Prakash | 2009-09-22 |
| 7545537 | Bandless halftone design for multiple beam printers employing non-orthogonal halftones | Hong Li, Mikel Stanich, Chai Wah Wu | 2009-06-09 |
| 7489419 | Method and system for specifying halftone spot shapes | Huy A. Nguyen, Mikel Stanich, Chai Wah Wu | 2009-02-10 |
| 7446904 | Methods and apparatus for generating dither mask through interpolation between preferred patterns | Mikel Stanich, Charles P. Tresser, Chai Wah Wu | 2008-11-04 |
| 7400430 | Detecting and compensating for color misregistration produced by a color scanner | Joseph Stanley Czyszczewski, Hong Li, James T. Smith, II, Mikel Stanich, Chai Wah Wu | 2008-07-15 |
| 7333244 | Method and system for embedding an image into two other images | Mikel Stanich, Chai Wah Wu | 2008-02-19 |
| 7310168 | Method and apparatus for controlling a spot function for digital halftoning | Jennifer Trelewicz, Danielle Kathyrn Dittrich, Yue Qiao, Chai Wah Wu | 2007-12-18 |
| 6992789 | Method, system, and program for managing a multi-page document | Joseph Stanley Czyszczewski, Ravishankar Rao, James T. Smith, II | 2006-01-31 |
| 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 |
| 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, Steven L. Wright +1 more | 2004-10-05 |
| 6782126 | Method for combining feature distance with spatial distance for segmentation | Ravishankar Rao, Kuo Chung-Hui | 2004-08-24 |
| 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, Charles Tresser, Chai Wah Wu | 2004-05-18 |
| 6721448 | Color clustering and segmentation using sigma filtering | Ravishankar Rao, Kuo Chung-Hui | 2004-04-13 |
| 6714318 | Dithering method and apparatus for multitone printers | Charles H. Morris, III, Joan L. Mitchell, Chai Wah Wu, 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, Chai Wah Wu | 2004-02-03 |
| 6633411 | Method and apparatus for repurposing binary images | Ravishankar Rao, Frederick C. Mintzer | 2003-10-14 |
| 6597813 | Masks with modulated clustering and aperiodicity and rescaling of masks | Mikel Stanich, Charles P. Tresser, Chai Wah Wu | 2003-07-22 |
| 6515770 | Dither mask generation with calibration-independent number of threshold levels | Ravishankar Rao, Charles P. Tresser, Chai Wah Wu | 2003-02-04 |
| 6208431 | Method of eliminating artifacts in display devices | Ho Chong Lee, Mikel Stanich, Jack Louis Zable | 2001-03-27 |