Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398292 | Method and apparatus for encoding digital with two error correcting codes | Toshitada Doi | 1983-08-09 |
| 4380071 | Method and apparatus for preventing errors in PCM signal processing apparatus | — | 1983-04-12 |