Video media security and tracking system

• US 5,754,649 A
• Filed: 06/23/1997
• Issued: 05/19/1998
• Est. Priority Date: 05/12/1995
• Status: Expired due to Term

• Current Assignee: Hughes Electronics Corporation (Rtx Corporation)
• Original Assignee: Macrovision Corporation (Adeia Inc.)
• Inventors: Morrison, E. Fraser, Ryan, John O., Copeland, Gregory C.
• Primary Examiner(s): Tarcza, Thomas H.
• Assistant Examiner(s): SAYADIAN, HRAYR
• Application Number:
  US08/880,203
• Time in Patent Office: 330 Days
• Field of Search: 380/4, 380/3, 380/5, 380/21, 380/23, 380/25, 360/33.1, 360/60, 360/132-135, 369/48, 369/58, 369/59, 340/825.31, 340/825.34
• US Class Current: 380/203
• CPC Class Codes: G06Q 20/123 Shopping for digital content
• CPC Class Codes: G06Q 20/1235 with control of digital rights management [DRM]
• CPC Class Codes: G07F 17/0042 for hiring of objects
• CPC Class Codes: G11B 11/10595 Control of operating function
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00188 involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00231 wherein the key is obtained from a local external medium, e.g. a card
• CPC Class Codes: G11B 20/00876 wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
• CPC Class Codes: G11B 23/284 on the record carrier
• CPC Class Codes: G11B 23/286 Antitheft arrangements, e.g. Electronic Article Surveillance [EAS] tags
• CPC Class Codes: G11B 5/09 Digital recording
• CPC Class Codes: G11B 7/0037 with discs
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082

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.

Claims

1. A video disc, comprising:

an optically recorded content portion including prerecorded video material and an initialization region, the initialization region including a data decryption key, a program identification identifying the prerecorded video material, and a play authorization indication; and

a magnetic track, the magnetic track being at a predetermined location on the disc relative to the optically recorded content portion, the magnetic track including a recording of an encryption of both the program identification and a particular player number.

2. A previously authenticated prerecorded video disc, comprising:

an optically recorded content portion including a prerecorded video material region and an initialization region, the initialization region including a data decryption key, a program identification identifying the prerecorded video material, and a play authorization indication; and

a magnetic track region, the magnetic track being at a predetermined location on the disc relative to the optically recorded content portion, the magnetic track including a recording of an encryption of both the program identification and a particular player number.