Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858005 | System for encoding broadcast quality television signals to enable transmission as an embedded code | — | 1989-08-15 |
| 4757531 | Encryption of television signals | Arthur G. Mason, Barry A. Flannigan | 1988-07-12 |
| 4636851 | Signal coding for secure transmission | Gordon M. Drury, Arthur G. Mason, Barry Flannaghan | 1987-01-13 |