Descrambler unit method and apparatus for television signal desc

Details Descrambler unit method and apparatus for television signal desc Descrambler unit method and apparatus for television signal desc

1983-10-31

1987-07-21

Buczinski, Stephen C.

Cryptography

Key management

Having particular key generator

34082531, 235487, 235492, 380 10, H04N 7167, G06K 1906, G06F 704

Patent

active

046822232

ABSTRACT:
A method of descrambling received video program signals with transmitted synchronization signals for use in a video receiver comprising the steps of providing first terminals for receiving the scrambled video signal and second terminals coupled to the video receiver and connecting an electronic ticket containing descrambling circuitry to the first terminals for receiving and descrambling the received video signal and coupling the descrambled video signal from the electronic ticket to the second terminals for transfer to the video receiver.

REFERENCES:
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patent: 3736369 (1973-05-01), Vogelman et al.
patent: 3813482 (1974-05-01), Blonder
patent: 3890461 (1975-07-01), Vogelman et al.
patent: 3906201 (1975-09-01), Housman et al.
patent: 4081832 (1978-03-01), Sherman
patent: 4210900 (1980-07-01), Shavit
patent: 4433207 (1984-02-01), Best
patent: 4471379 (1984-09-01), Stephens
patent: 4528588 (1985-07-01), Lofberg

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