Video theater system and copy preventive method

Details Video theater system and copy preventive method Video theater system and copy preventive method

1992-06-10

1994-04-12

Gregory, Bernarr E.

Cryptography

Cryptanalysis

380 10, 360 3, 360 60, 360 80, 358335, 348104, 348 5, 348744, H04N 7167

Patent

active

053032942

ABSTRACT:
A video theater system includes a video cassette recording at least a component video signal to which a copy preventive scheme has been applied; a video cassette recorder for reproducing the video cassette; a tuner and an antenna for receiving a signal transmitted via a satellite; a controller device for controlling the video cassette recorder and the tuner; means for releasing the copy preventive scheme; and a projector for projecting a video image from which the copy preventive scheme has been released. The copy preventive scheme is applied, while at least a synchronizing signal is retained, to a protected video signal at a point between dubbing of the master tape to the distribution tape after a video conversion and the second video cassette recorder. This copy preventive scheme is released by means of a device and circuit following a video cassette recorder used to reproduce the video signal in readiness for the projection thereof onto a screen.

REFERENCES:
patent: 3033922 (1962-05-01), Campbell, Jr. et al.
patent: 3963865 (1976-06-01), Songer
patent: 4100575 (1978-07-01), Morio et al.
patent: 4907273 (1990-03-01), Wiedemer
patent: 4942488 (1990-07-01), Osawa
patent: 5134496 (1992-07-01), Schwab et al.
patent: 5155767 (1992-10-01), Noller
H. Griesshaber, "Managing Secure and Confidential Video Distribution", IEEE 1991 International Conference on Consumer Electronics, at 74-75 (Jun. 1991).

Affiliated with

Also associated with

Rating

Video theater system and copy preventive method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2105651