Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890319 | Method for controlling copying of protected information transmitted over a communications link | Nigel Seth-Smith, Cameron Bates, William van Rassel, Robert Yoneda, Keith Lucas | 1989-12-26 |
| 4890321 | Communications format for a subscription television system permitting transmission of individual text messages to subscribers | Nigel Seth-Smith, Cameron Bates, William van Rassel, Robert Yoneda, Keith Lucas | 1989-12-26 |
| 4866770 | Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system | Nigel Seth-Smith, Cameron Bates, William van Rassel, Robert Yoneda, Keith Lucas | 1989-09-12 |
| 4829569 | Communication of individual messages to subscribers in a subscription television system | Nigel Seth-Smith, Cameron Bates, William van Rassel, Robert Yoneda, Keith Lucas | 1989-05-09 |