Cryptography – Cryptanalysis
Patent
1997-06-23
1998-05-19
Tarcza, Thomas H.
Cryptography
Cryptanalysis
380 21, 380 23, 380 25, 360 60, 34082531, 34082534, H04L 900, H04K 100, G11B 1504, G11B 1904, G07D 700
Patent
active
057546495
ABSTRACT:
A video disc designed for providing security and tracking data in the rental video media market. Those new formats for video players and media allow for inclusion of security features which both allow tracking of rental of such media and prevent unauthorized rental thereof Each player includes a decision circuit which plays a particular optical disc only if a player identification number recorded on a special separate magnetic track on the optical disk is the same as the player identification stored in the player, and if a movie identification number optically read from the disc matches a movie identification number recorded on the special separate magnetic track. A corresponding apparatus is provided at the video rental store which, at the time of rental, records on a magnetic portion of the media in encrypted form the movie identification number and the number of the particular disc player for which that rental is intended. The authorization encryption uses the private key of a public key system, the public key and the modulus being pre-recorded on the optical portion of the disc.
REFERENCES:
patent: 4453074 (1984-06-01), Weinstein
patent: 4866769 (1989-09-01), Karp
patent: 4991208 (1991-02-01), Walker et al.
patent: 5111504 (1992-05-01), Esserman et al.
patent: 5267311 (1993-11-01), Bakhoum
patent: 5379433 (1995-01-01), Yamagishi
patent: 5392351 (1995-02-01), Hasebe et al.
patent: 5400319 (1995-03-01), Fite et al.
patent: 5400403 (1995-03-01), Fahn et al.
patent: 5426701 (1995-06-01), Herman et al.
patent: 5450489 (1995-09-01), Ostrover et al.
patent: 5457746 (1995-10-01), Dolphin
patent: 5461675 (1995-10-01), Diehl et al.
patent: 5509073 (1996-04-01), Monnin
patent: 5537473 (1996-07-01), Saward
patent: 5555304 (1996-09-01), Hasebe et al.
patent: 5563947 (1996-10-01), Kikinis
patent: 5596639 (1997-01-01), Kikinis et al.
Copeland Gregory C.
Morrison E. Fraser
Ryan John O.
Brill Gerow D.
Macrovision Corp.
Sayadian Hrayr A.
Tarcza Thomas H.
LandOfFree
Video media security and tracking 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 Video media security and tracking system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video media security and tracking system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1861357