Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849826 | Digital non-linear pre-emphasis/de-emphasis apparatus for eliminating noise components from video signals in a video signal processing system | — | 1989-07-18 |
| 4827342 | Video signal processing apparatus for removing noise from reproduced signals | Masao Tomita | 1989-05-02 |
| 4825289 | Noise reduction apparatus for video signal | — | 1989-04-25 |