Insertion of supplemental burst into video signals to thwart pir

Details Insertion of supplemental burst into video signals to thwart pir Insertion of supplemental burst into video signals to thwart pir

1995-03-09

1997-07-22

Cangialosi, Salvatore

Cryptography

Key management

Having particular key generator

380 7, 380 14, 348476, H04L 900

Patent

active

056510659

ABSTRACT:
A video signal is modified to include a supplemental burst signal on at least some of the scan lines for each frame. The supplemental burst signals are used to prevent a pirate decoder from descrambling horizontally sync suppressed scrambled signals by deriving a synchronization timing reference from the color burst signal. The supplemental burst signals can also or alternatively be used to carry data in an otherwise conventional analog video signal.

REFERENCES:
patent: 3679813 (1972-07-01), Banning, Jr.
patent: 4350999 (1982-09-01), Mortimer
patent: 4953208 (1990-08-01), Ideno
patent: 5146496 (1992-09-01), Westerfer et al.
patent: 5196921 (1993-03-01), Megeid
patent: 5309235 (1994-05-01), Naimpally
patent: 5455630 (1995-10-01), McFarland et al.

Affiliated with

Also associated with

Rating

Insertion of supplemental burst into video signals to thwart pir does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Insertion of supplemental burst into video signals to thwart pir, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insertion of supplemental burst into video signals to thwart pir will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1565215