| 4496986 |
Subscription television interface |
| Jan-29-1985 |
An interface for subscription television reception which restores the program selection function to the tuner of the television receiver. This is of particular importance to subscribers using remote control... |
| 4348691 |
Master antenna subscription television system and the like |
| Sep-7-1982 |
This disclosure is concerned with simplification of customer TV decoders for scrambled television signals fed from a master antenna system or the like, by novel head-end decoding and simultaneous scrambled... |
| 4330794 |
Multichannel subscription television system |
| May-18-1982 |
Sinusoidal timing reference signals, each of which is associated with a different suppresed-sync scrambled-priority television channel signal, frequency modulate associated carrier frequency signals for... |
| 4253114 |
High security subscription television system employing real time control of subscriber's program reception |
| Feb-24-1981 |
A high security subscription television system which includes the feature of dynamic scrambling and descrambling of cable-connected television signals in response to real-time coded control signals. The... |
| 4145717 |
Subscription TV audio carrier recovery system |
| Mar-20-1979 |
A subscription TV decoder for processing encoded audio and video signals in which the TV program audio information is received as an audio subcarrier includes means for decoding the video signal, a filter... |
