VCR with cable tuner control

Details VCR with cable tuner control VCR with cable tuner control

1990-11-05

1992-06-16

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 52, 3581941, 358335, 34082572, 341176, 4551512, 359146, H04N 7167, H04H 102, H04B 1004, H04B 1006

Patent

active

051230461

ABSTRACT:
A video recorder, adapted to receive descrambled signals from a remotely controllable tuner/descrambler for multi-channel cable or satellite signals for recording or provision to a T.V. receiver, includes a future program memory which may be programmed by an operator to cause the system to record a predetermined channel at a predetermined future time. To ensure that the descrambler is tuned to the proper channel when a signal requiring descrambling is to be recorded, the video recorder is connected to a remote control transmitter which is energized at the time occurrence of a program to be recorded to send a signal to the remote control receiver of the tuner/descrambler causing it to select the appropriate channel for descrambling.

REFERENCES:
patent: 4631601 (1986-12-01), Brugliera et al.
patent: 4977455 (1990-12-01), Young
patent: 5046093 (1991-09-01), Wachob
"Interactive Videodisc Systems for Education", J. Bennion, E. Schneider, Journal of the Society of Motion Picture and Television Engineers, vol. 84, No. 12, Dec. 1975.
Cable data advertisement, Cablevision, Feb. 9, 1981.
DAP II advertisement, Nov.-Dec. 1981.

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