Automatic homing system for a subscription television signal dec

Details Automatic homing system for a subscription television signal dec Automatic homing system for a subscription television signal dec

1981-10-16

1985-03-05

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358114, 358117, 3581931, 455185, H04N 716, H04K 104

Patent

active

045034621

ABSTRACT:
An automatic homing system for a subscription television signal decoder comprises a tuning system responsive to a decoder off-command signal for operation in a search mode wherein successive television channels are sequentially tuned until a subscription television signal is detected. As a result, the memory circuits of the decoder may be refreshed with updated subscriber authorization data in response to a transmitted subscription television signal even though the decoder is turned off.

REFERENCES:
patent: 4079419 (1978-03-01), Siegle et al.
patent: 4222068 (1980-09-01), Thompson
patent: 4225884 (1980-09-01), Block et al.
patent: 4323922 (1982-04-01), Toonder
patent: 4430669 (1984-02-01), Cheung

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