CATV subscriber apparatus with intelligent remote control

Details CATV subscriber apparatus with intelligent remote control CATV subscriber apparatus with intelligent remote control

1989-09-05

1991-09-03

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 10, 358 86, 3581941, 358349, 359146, 341176, 34082531, 34082534, 34082572, 379 93, 455 5, 455 6, 455151, H04N 7167, H04H 102, H04B 1004, H04B 1006

Patent

active

050460935

ABSTRACT:
Subscriber apparatus for a cable television system or the like comprises a converter/descrambler and a programmable remote control. All authorization data for premium services and features a subscriber is entitled to receive are stored in the remote control. Program/interface apparatus is provided to enable a subscriber to request additional premium services or features, such as pay-per-view programming. Authorization data for the requested services or features are transmitted by the program/interface apparatus to the remote control via an infrared signal path. A similar signal path is used by the remote control in controlling the converter/descrambler to provide the authorized services and features, such as the descrambling of a premium television channel.

REFERENCES:
patent: 4245245 (1981-01-01), Matsumoto et al.
patent: 4626848 (1986-10-01), Ehlers
patent: 4786900 (1988-11-01), Karasawa et al.
patent: 4792972 (1988-12-01), Cook, Jr.

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