Issued Patents All Time
Showing 151–175 of 175 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644406 | Method for selecting an optimum encoding process for a block of pixels from a plurality of predefined encoding processes | Stephen C. Morgana, R. Victor Klassen | 1997-07-01 |
| 5631748 | Color images having multiple separations with minimally overlapping halftone dots and reduced interpixel contrast | — | 1997-05-20 |
| 5619233 | Bidirectional ink jet printing with head signature reduction | — | 1997-04-08 |
| 5598204 | Image halftoning system capable of producing additional gradations | — | 1997-01-28 |
| 5588093 | Color mapping to preserve detail | — | 1996-12-24 |
| 5583953 | Intelligent doubling for low-cost image buffers | — | 1996-12-10 |
| 5581376 | System for correcting color images using tetrahedral interpolation over a hexagonal lattice | — | 1996-12-03 |
| 5543935 | Halftoning method using space filling curves | — | 1996-08-06 |
| 5493634 | Apparatus and method for multi-stage/multi-process decomposing | Lawrence R. Bonk, Thomas Zell, David A. Catapano, Richard E. Bryant, Peter M. Krist +4 more | 1996-02-20 |
| 5493323 | Color images having multiple separations with minimally overlapping halftone dots | — | 1996-02-20 |
| 5455610 | Color architecture for an ink jet printer with overlapping arrays of ejectors | — | 1995-10-03 |
| 5353390 | Construction of elements for three-dimensional objects | — | 1994-10-04 |
| 5347369 | Printer calibration using a tone reproduction curve and requiring no measuring equipment | — | 1994-09-13 |
| 5331438 | Method and apparatus for improving full color images using process black and printer black | — | 1994-07-19 |
| 5319346 | Conversion from odd to non-zero winding number specification using an extended frame buffer | — | 1994-06-07 |
| 5319473 | Methods and apparatus for performing real time color gamut compressions | — | 1994-06-07 |
| 5317650 | Determination of the arc length of a curve | — | 1994-05-31 |
| 5278678 | Color table display for interpolated color and anti-aliasing | — | 1994-01-11 |
| 5276532 | Split-level frame buffer | — | 1994-01-04 |
| 5241396 | Color printing yielding a dense black image | — | 1993-08-31 |
| 5237517 | Color printing having a highlight color image mapped from a full color image | R. Victor Klassen | 1993-08-17 |
| 5231695 | Generalized clipping in an extended frame buffer | — | 1993-07-27 |
| 5153576 | Mapping of color images to black-and-white textured images | — | 1992-10-06 |
| 5043711 | Representation of polygons defined by non-zero winding numbers | — | 1991-08-27 |
| 4903048 | Simulated color imaging using only two different colorants/toners | — | 1990-02-20 |