Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831434 | Method of correcting color saturation in electronic image processing | — | 1989-05-16 |
| 4825296 | Method of and apparatus for copying originals in which an image to be printed is evaluated by observing a corresponding low-resolution video image | Eduard Wagensonner, Wolfgang Ruf | 1989-04-25 |
| 4825297 | Method of and apparatus for electronic contrast enhancement of reproductions of two-dimensional transparent original images | Eduard Wagensonner | 1989-04-25 |
| 4812902 | Method and apparatus for adjusting color saturation in electronic image processing | — | 1989-03-14 |
| 4812903 | Method of electronically improving the sharpness and contrast of a colored image for copying | Eduard Wagensonner, Wolfgang Ruf, Klaus Birgmeir | 1989-03-14 |