Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864406 | Television receiver with a synchronized external-power stage | Udo Mai | 1989-09-05 |
| 4860102 | Circuitry for automatically switching the control speed of a phase-control circuit | Franz Dieterle, Udo Mai | 1989-08-22 |
| 4849818 | Television receiver with receiving devices for processing videotext and teletext signals | Udo Mai, Fritz Ohnemus | 1989-07-18 |
| 4841251 | Method of generating a voltage with a triangular shape from a sawtooth waveform | Fritz Ohnemus | 1989-06-20 |
| 4835610 | Arrangement for automatic switching of the regulating speed of a phase regulating circuit | Franz Dieterle, Udo Mai | 1989-05-30 |
| 4814672 | Circuitry for limiting an operating voltage obtained by way of a rectifier from a secondary winding of a transformer | Franz Dieterle, Udo Mai | 1989-03-21 |
| 4795947 | Device for eliminating the interline flicker | Gunter Gleim, Udo Mai, Fritz Ohnemus | 1989-01-03 |