Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884139 | Method of digital sound broadcasting in television channels with spectrum interlacing | — | 1989-11-28 |
| 4881241 | Method and installation for digital communication, particularly between and toward moving vehicles | Michel Alard | 1989-11-14 |
| 4821261 | Packet transmission of digital signals over a high capacity channel, particularly over a satellite broadcasting channel | — | 1989-04-11 |