Information recording medium and information processing device

• US 6,754,155 B1
• Filed: 08/03/2000
• Issued: 06/22/2004
• Est. Priority Date: 08/04/1999
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yada, Hiroaki, Fukuyama, Munekatsu, Hayashi, Nobuhiro
• Primary Examiner(s): Tran, Thang V.
• Application Number:
  US09/632,283
• Time in Patent Office: 1,419 Days
• Field of Search: 360/69, 360/48, 360/77.07, 360/77.08, 360/60, 360/77.05, 369/53.2, 369/53.21, 369/30.1, 369/30.21, 369/59.23, 369/275.3, 369/27.01, 369/30.03, 369/30.05, 369/30.19, 369/47.13, 711/163, 711/164, 380/203, 380/239, 380/277
• US Class Current: 369/53.21
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G11B 19/122 involving the detection of an identification or authentication mark record carriers indicating unauthorised or prior use G11B23/28
• 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 20/00855 involving a step of exchanging information with a remote server
• CPC Class Codes: G11B 5/09 Digital recording
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

An information recording medium and information processing device are provided so that recording medium-identifying ID information cannot be rewritten. Unique ID information specific to a recording medium is recorded in a servo zone, which is not a data zone in which data recording/reproduction can be performed. After the medium is installed in the disk drive, a user cannot rewrite the recorded ID information and can only read it. When information distributed via a network is stored in a storage device, the ID in the servo zone is verified so that the information can be stored in the storage device only when the storage device is properly licensed.

Claims

1. An information processing device comprising a disk-shaped information recording medium permitting data recording and reproducing, wherein said disk-shaped information recording medium comprises:

a data zone permitting data recordings and reproducing, and

a servo zone for recording servo information for positioning a head which performs data recording or reproducing relative to said information recording medium, and

ID information for identifying the individual information recording medium is recorded in said servo zone,

wherein said information processing device comprises;

means for performing data recording and reproducing to and from said information recording medium,

ID information read means for reading said ID information from said servo zone, wherein said ID information read means reads said ID information recording servo zone data as ID information based on ID information recording servo zone region information of said information recording medium on which ID information is recorded, and said ID information read means comprises means for executing an ID information read program generated in correspondence with said ID information recording servo zone region information,

ID comparison means for performing a comparison of license information generated based on said ID information and said ID information when distribution information from external information providing means is recorded on the information recording medium, and

storage enabling means which enables storage of information from external information providing means on said information recording medium only when it is confirmed that said license information is information created based on said ID information as a result of the comparison in said ID comparison means.

2. An information processing device as claimed in claim 1, wherein said storage enabling means is decoding means which performs decoding of encoded information from information providing means, and which decodes encoded information from external information providing means only when it is confirmed that said license information is information created based on said ID information as a result of the comparison in said ID comparison means.

3. An information processing device comprising a disk-shaped information recording medium permitting data recording and reproducing, wherein said disk-shaped information recording medium comprises:

a data zone permitting data recording and reproducing, and

a servo zone for recording servo information for positioning a head which performs data recording or reproducing relative to said information recording medium, and

ID information for identifying the individual information recording medium is recorded in said servo zone,

wherein said information processing device records distribution information from external information providing means on said information recording medium, and comprises;

means for performing data recording and reproducing to and from said information recording medium,

ID information read means for reading said ID information from said servo zone, wherein said ID information read means reads said ID information recording servo zone data as ID information based on ID information recording servo zone region information of said information recording medium on which ID information is recorded, and said ID information read means comprises means for executing an ID information read program generated in correspondence with said ID information recording servo zone reunion information,

ID comparison means for performing a comparison of license information generated based on said ID information and said ID information when said recorded information is played back, and

reproducing enabling means which enables reproducing of recorded information recorded on said information recording means only when it is confirmed that said license information is information created based on said ID information as a result of the comparison in said ID comparison means.

4. An information processing device as claimed in claim 3, wherein said reproducing enabling means is decoding means which performs decoding of encoded information from information providing means, and which decodes encoded information recorded on said information recording medium only when it is confirmed that said license information is information created based on said ID information as a result of the comparison in said ID comparison means.