| 6546113 |
Method and apparatus for video watermarking |
Keith Lucas |
2003-04-08 |
| 4890321 |
Communications format for a subscription television system permitting transmission of individual text messages to subscribers |
Nigel Seth-Smith, Cameron Bates, Samson Lim, Robert Yoneda, Keith Lucas |
1989-12-26 |
| 4866519 |
Method and apparatus for increasing the vertical definition of a transmitted television signal |
Keith Lucas |
1989-09-12 |
| 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, Samson Lim, Robert Yoneda, Keith Lucas |
1989-09-12 |
| 4829569 |
Communication of individual messages to subscribers in a subscription television system |
Nigel Seth-Smith, Cameron Bates, Samson Lim, Robert Yoneda, Keith Lucas |
1989-05-09 |
| 4817142 |
Restoring framing in a communications system |
— |
1989-03-28 |
| 4697277 |
Synchronization recovery in a communications system |
— |
1987-09-29 |