Method and apparatus for providing program/component redundancy

Details Method and apparatus for providing program/component redundancy Method and apparatus for providing program/component redundancy

1997-03-05

1999-07-20

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 2, 380 9, 380 20, 380 49, 348 6, 348 9, 455 31, 455 41, 455 61, H04N 7167

Patent

active

059265477

ABSTRACT:
In a communications system, a headend is provided with redundancy circuitry for video receivers, decoders, and modulation circuitry. The devices in the headend are monitored for failure, and when they fail, the channel being processed by the failing device is rerouted through redundancy circuitry to avoid the interruption of service to subscribers.

REFERENCES:
patent: 4673976 (1987-06-01), Wreford-Howard

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