Recording medium having digital copy management data recorded therein, and recording apparatus and reproducing apparatus in which reproduction or recording operation is controlled on the basis of the digital copy management data

• US 6,034,832 A
• Filed: 06/10/1997
• Issued: 03/07/2000
• Est. Priority Date: 06/12/1996
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ichimura, Gen, Suzuki, Tadao
• Primary Examiner(s): Psitos, Aristotelis M.
• Assistant Examiner(s): HOLDER, REGINA NEAL
• Application Number:
  US08/871,955
• Time in Patent Office: 1,001 Days
• Field of Search: 360/60, 369/54, 369/58, 386/94, 380/4
• US Class Current: 360/60
• 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 20/00688 said measures preventing that a usable copy of recorded data can be made on another medium
• CPC Class Codes: G11B 20/00746 wherein the usage restriction can be expressed as a specific number
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 23/36 Signals on record carriers or on containers and recorded by the same method as the main recording
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence

Abstract

A system wherein management data for managing allowance or unallowance (i.e., prohibition) of copies on a recording medium are recorded, and a time restriction condition, an area limiting condition, a condition for restricting a copy mode, etc. are managed on the basis of the recorded copy management data. When data are copied to different recording media, the copy management data are recorded together with the main data, thereby restricting the reproducing operation of the main data.

Claims

1. A disc-shaped digital recording medium comprising:

a specified management area on the disc-shaped digital recording medium in which copy management data is recorded including at least one of time-and-date information for restricting reproduction of said recording medium to one of a specific time and date, area condition information for permitting/prohibiting reproduction or recording in specified geographical areas, and copy history information corresponding to a copy history of said recording medium including a frequency of copying and a number of copies made; and

a main area in which main information to be reproduced and copied is recorded, wherein

the area condition information permits or prohibits the reproduction or the recording by verifying the specified geographical area of the area condition information with an area information that has been allocated to a reproducing apparatus or recording apparatus performing the reproduction or the recording, respectively.

2. The recording medium as claimed in claim 1, wherein the time-and-data information is information for restricting the reproduction on a basis of a specified data and hour at which copying can be performed.

3. The recording medium as claimed in claim 1, wherein the time-and-date information is information for restricting the reproduction to a specific data and hour.

4. The recording medium as claimed in claim 1, wherein the copy history information is information for restricting a frequency of the reproduction of the recording medium.

5. The recording medium as claimed in claim 1, wherein the copy history corresponding to the copy of said recording medium is information for restricting a frequency of a copying operation.

6. The recording medium as claimed in claim 1, wherein the copy history information is information on a generation for which the copy is allowed from one original recording medium.

7. The recording medium as claimed in claim 1, wherein the copy history information is connection information on a number of recording apparatuses to which a simultaneous copy from one original recording medium is allowed.

8. A recording and reproducing system for reproducing data, the system comprising:

a first disc-shaped digital recording medium having a management area in which copy management data including at least one of time-and-date information on reproduction or recording of the first disc-shaped digital recording medium, area condition information for permitting/prohibiting reproduction or recording of said first disc-shaped digital recording medium in specific geographical areas, and copy history information corresponding to the copy history of said first disc-shaped digital recording medium are recorded as management information, and a main area in which main information to be copied is recorded;

a second disc-shaped digital recording medium; and

a recording and reproducing apparatus including

copy management information renewing means for performing a predetermined renewing processing on the copy management information reproduced from the management area of said first disc-shaped digital recording medium in accordance with the copy of the main information on said first disc-shaped digital recording medium when the main information and the copy management information reproduced from said first disc-shaped digital recording medium are copied onto said second disc-shaped digital recording medium, and

recording means for recording the renewed copy management information provided by the renewing means in the management area on said second disc-shaped digital recording medium, wherein

said recording and reproducing apparatus further includes storage means for storing geographical area information, and an execution or non-execution of the reproducing operation of said first disc-shaped digital recording medium is controlled on a basis of a verification result between the area condition information contained in the copy management information recorded in said management area and the specific geographical area information stored in said storage means.

9. The recording and reproducing system as claimed in claim 8, wherein an execution or non-execution of the reproducing operation of said first disc-shaped digital recording medium is controlled on a basis of the copy management information recorded in said management area of said first disc-shaped digital recording medium.

10. The recording and reproducing system as claimed in claim 8, wherein an execution or non-execution of the reproducing operation of said first disc-shaped digital recording medium is controlled on a basis of the time-and-date information contained in the copy management information recorded in said management area.

11. The recording and reproducing system as claimed in claim 8, wherein an execution or non-execution of the recording operation of a recording apparatus which performs a copy operation on said first disc-shaped digital recording medium as an original is controlled on a basis of connection condition information contained in the copy management information recorded in said management area.