Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6842266 | Systems and methods that determine an image processing system tone reproduction curve | Charles E. Farnung, Ramesh Nagarajan, Julie A. Fisher, Regina M. Loverde | 2005-01-11 |
| 6782129 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2004-08-24 |
| 6753987 | Systems and methods to determine a contrast and a brightness adjusted system tone reproduction curve | Charles E. Farnung, Ramesh Nagarajan, Julie A. Fisher, Regina M. Loverde, Ralph H. Huedepohl | 2004-06-22 |
| 6674899 | Automatic background detection of scanned documents | Ramesh Nagarajan, Xing Li | 2004-01-06 |
| 6650439 | Segmentation tag cleanup system | Ramesh Nagarajan, Xing Li | 2003-11-18 |
| 6639692 | Pixel level segmentation tag cleanup | Xing Li, Ramesh Nagarajan | 2003-10-28 |
| 6625312 | Document classification using segmentation tag statistics | Ramesh Nagarajan, Xing Li | 2003-09-23 |
| 6618171 | Black point adjustment based on image background | Ramesh Nagarajan, Charles E. Farnung | 2003-09-09 |
| 6538661 | Apparatus and methods of controlling image forming apparatus | Charles E. Farnung, Ramesh Nagarajan, Julie A. Fisher | 2003-03-25 |
| 6529629 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2003-03-04 |
| 6519367 | Method and system for propagating selective amounts of error in a hybrid screening device | Ramesh Nagarajan, William A. Cook | 2003-02-11 |
| 6516091 | Block level analysis of segmentation tags | Ramesh Nagarajan, Xing Li, Michael E. Meyers | 2003-02-04 |
| 6437872 | Multibit screening of print documents in a PDL environment | Michael L. Davidson, Harry L. Parker, Ramesh Nagarajan | 2002-08-20 |
| 6389164 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2002-05-14 |
| 6360009 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2002-03-19 |
| 6272240 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2001-08-07 |
| 6240215 | Method and apparatus for digital image processing with selectable background suppression data acquisition modes | David L. Salgado, James G. Nargi, Kevin F. Aubertine, Nancy Kelly | 2001-05-29 |
| 6219465 | High quality digital scaling using pixel window averaging and linear interpolation | Aron Nacman, Anthony M. Frumusa, Ramesh Nagarajan, William A. Cook, Michael K. Carney | 2001-04-17 |
| 6198845 | Method for determining document background for adjusting the dynamic range of an image of the document | Barbara L. Farrell, Ramesh Nagarajan, Andre Blaakman, Richard S. Fox, George W. Lahue +1 more | 2001-03-06 |
| 6181834 | Hybrid image reduction method and apparatus with moire suppression | Xing Li | 2001-01-30 |
| 6178260 | Image segmentation apparatus and method | Xing Li, Michael E. Meyers | 2001-01-23 |
| 5742708 | Method and system for performing perspective projection conversion | Thomas I. Yeh, George W. Lahue | 1998-04-21 |
| 5710836 | System and apparatus for tonal reproduction adjustment in an error diffusion process | Jeng-Nan Shiau | 1998-01-20 |
| 5687297 | Multifunctional apparatus for appearance tuning and resolution reconstruction of digital images | Bonnie R. Coonan, Anthony M. Frumusa, Aron Nacman, Michael L. Davidson | 1997-11-11 |
| 5659634 | Apparatus and method for encoding and reconstructing image data | Thomas I. Yeh, Anthony M. Frumusa, Aron Nacman, Kenneth D. Romano | 1997-08-19 |