Wire-tap preventing apparatus for community antenna television t

Details Wire-tap preventing apparatus for community antenna television t Wire-tap preventing apparatus for community antenna television t

1986-03-07

1988-04-26

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358349, 455 2, 34082552, H04N 710, H04N 716

Patent

active

047408359

ABSTRACT:
Uncompensated, illegal viewing of a restricted channel at a subscriber's terminal in a subscription CATV system is prevented by including a redundancy check-bit in each subscriber's terminal address, and by providing for a verification of the check-bit before viewing of the program on the channel is permitted.

REFERENCES:
patent: 3943305 (1976-03-01), Hagedorn
patent: 4367557 (1983-01-01), Stern et al.
patent: 4390898 (1983-06-01), Bond et al.
patent: 4450481 (1984-05-01), Dickinson et al.
patent: 4464747 (1984-08-01), Groudan et al.
patent: 4558464 (1985-12-01), O'Brien, Jr.
patent: 4605961 (1986-08-01), Fredicksen
patent: 4677685 (1987-06-01), Kurisu

Affiliated with

Also associated with

Rating

Wire-tap preventing apparatus for community antenna television t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wire-tap preventing apparatus for community antenna television t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire-tap preventing apparatus for community antenna television t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-823074