Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849818 | Television receiver with receiving devices for processing videotext and teletext signals | Uwe Hartmann, Udo Mai | 1989-07-18 |
| 4841251 | Method of generating a voltage with a triangular shape from a sawtooth waveform | Uwe Hartmann | 1989-06-20 |
| 4795947 | Device for eliminating the interline flicker | Gunter Gleim, Uwe Hartmann, Udo Mai | 1989-01-03 |