Method of and apparatus for scrambled television program address

Details Method of and apparatus for scrambled television program address Method of and apparatus for scrambled television program address

1981-11-20

1985-01-15

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358114, 358122, H04N 716, H04K 102, H04K 104

Patent

active

044941420

ABSTRACT:
This disclosure is concerned with an improved special program addressable subscription decoding technique in accordance with which ordinary program subscribing decoders continue to receive and decode the scrambled flat rate programs to which they are entitled while being disabled from receiving any of a plurality of special scrambled programs associated with a different control signal that will only enable decoding after pre-set unique address verification has been transmitted, checked and introduced into memory indicative of subscription to particular of such special programs, whereby the special program decoding will be effected compatibly with the continued flat rate program decoding by ordinary program subscribers.

REFERENCES:
patent: 3777053 (1973-12-01), Wittig et al.
patent: 3813482 (1974-05-01), Blonder
patent: 4095258 (1978-06-01), Sperber
patent: 4112464 (1978-09-01), Guif et al.
patent: 4115807 (1978-09-01), Pires
patent: 4163252 (1979-07-01), Mistry et al.
patent: 4245245 (1981-01-01), Matsumoto
patent: 4348691 (1982-09-01), Mistry
patent: 4430669 (1984-02-01), Cheung
Delta Benco Cascade Ltd. bulletin "Remote Control in CATV Systems", E. W. Chisholm.

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