Subscription television system

Details Subscription television system Subscription television system

1987-05-12

1988-09-13

Buczinski, Stephen C.

Cryptography

Key management

Having particular key generator

380 10, H04N 7167

Patent

active

047714573

ABSTRACT:
A subscription television system sends out a reference level signal together with a timing pulse on the transmitting side and, on the receiving side, extracts the reference level signal and suppresses the signal of a video signal interval, except for a synchronizing pulse interval, on the basis of the extracted reference level signal, whereby a descrambling process is performed.

REFERENCES:
patent: 3478166 (1969-11-01), Reiter et al.
patent: 3813482 (1974-05-01), Blonder
patent: 4389671 (1983-06-01), Posner et al.
patent: 4542407 (1985-09-01), Cooper et al.
patent: 4562465 (1985-12-01), Glaab
patent: 4567517 (1986-01-01), Mobley
patent: 4568974 (1986-02-01), Toonder et al.
patent: 4590519 (1986-05-01), Zelenz

Affiliated with

Also associated with

Rating

Subscription television system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subscription television system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subscription television system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-810753