Data-recording method, data-recording apparatus, and data-recording system

• US 20070208916A1
• Filed: 02/09/2005
• Published: 09/06/2007
• Est. Priority Date: 02/10/2004
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Tomita, Nobuyoshi
• Application Number:
  US11/054,624
• Publication Number:
  US 20070208916A1
• Time in Patent Office: Days
• US Class Current: 711/162
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• 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: G06Q 30/02 Marketing; Price estimation or determination; Fundraising
• 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 20/00195 using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00753 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags

Abstract

A PC, which is a data-processing apparatus copies a file in a mini disc via a data-recording apparatus. The file is composed of a copyrighted music content accumulated in the HDD of the PC, which have been reproduced from another recording medium such as a CD, a DVD or the like. The data-recording apparatus records the ID specific to the PC in the mini disc. Not only the music file, but also the content ID specific to the content is recorded in the next-generation mini disc used in an embodiment of this invention. The music file, thus backed up, is restored when the device in which the content is to be restored is identical to the PC that has been checked out, or when this device is collated to be identical to the PC.

Claims

1. A data-recording method of copying a content to another recording medium, the content being that which is permitted to be copied only a limited number of times, said method comprising:

a recording step of first copying the content to the another recording medium and then recording content information specific to the content and device information specific to a device that is an original storage place of the content;

a collating step of collating the content information about the copied content and the device information associated with the content information, with device information about a device in which the content is to be written, when the content is lost in the storage place after the content has been recorded in the recording step; and

a restoring step of writing the copied content back into the device when collation is successfully performed in the collating step.

2. The data-recording method according to claim 1, wherein the restoring step has a determining step of determining whether the content to be restored was restored in the past in combination with the recording medium storing the content, and the copied content is written back into the device if the collation is successfully performed in the collating step and if the content was not restored in the past.

3. The data-recording method according to claim 2, wherein the restoring step has a step of determining whether the device in which the content is to be restored is identical to the device in which the content has been previously restored, and a step of detecting a restoration interval to determine whether a prescribed period has elapsed from a previous restoring process, and the copied content is written back into the device if the collation is successfully performed in the collating step, if the device in which the content is to be restored is not identical to the device in which the content has been previously restored and if the prescribed period has elapsed from the previous restoring process.

4. The data-recording method according to claim 1, wherein the content information includes index information to be referred to when a music content is reproduced, information for checking possible falsification of the content and information for allowing reproduction for each set.

5. The data-recording method according to claim 1, wherein the coping from the original storage place to the another recording medium is to assign the right of using the content, and the content cannot be used in the original storage place unless the right of moving the content from the another recording medium to the original storage place is reverted.

6. The data-recording method according to claim 1, wherein the another recording medium has a secure region that can be used if verified and an ordinary record region, and the content is recorded in the secure region.

7. The data-recording method according to claim 1, wherein the content includes a music content and a video content.

8. A data-recording apparatus for copying a content to another recording medium, the content being that which is permitted to be copied only a limited number of times, said apparatus comprising:

first recording means for recording, in storage means, a content input from an external device;

second recording means for copying the content from the storage means to the another recording medium and recording content information specific to the content and device information specific to the data-recording apparatus; and

restoring means for collating the content information about the copied content and the device information associated with the content information, with device information about a device in which the content is to be written, when the content is lost in the storage place after the content has been recorded to the another recording medium by the second recording means, and for causing the first recording means to perform a process of writing the copied content back into an original storage place when collation is successfully performed.

9. The data-recording apparatus according to claim 8, wherein the restoring means determines whether the content to be restored was restored in the past in combination with the recording medium storing the content, and performs a process of writing the copied content back into the device if the collation is successfully performed and if the content was not restored in the past.

10. The data-recording apparatus according to claim 9, wherein the restoring means determines whether the device in which the content is to be restored is identical to the device in which the content has been previously restored, detects a restoration interval to determine whether a prescribed period has elapsed from a previous restoring process, and writes the copied content back into the device if the collation is successfully performed, if the device in which the content is to be restored is not identical to the device in which the content has been previously restored and if the prescribed period has elapsed from the previous restoring process.

11. The data-recording apparatus according to claim 8, wherein the content information includes index information to be referred to when a music content is reproduced, information for checking possible falsification of the content and information for allowing reproduction for each set.

12. The data-recording apparatus according to claim 8, wherein the coping from the original storage place to the another recording medium is to assign the right of using the content, and the content cannot be used in the original storage place unless the right of moving the content from the another recording medium to the original storage place is reverted.

13. The data-recording apparatus according to claim 8, wherein the another recording medium has a secure region that can be used if verified and an ordinary record region, and the content is recorded in the secure region.

14. The data-recording apparatus according to claim 8, wherein the content includes a music content and a video content.

15. A data-recording system comprising:

a data-recording apparatus having first recording means for recording, in storage means, a content input from an external device, and second recording means for copying the content from the storage means to the another recording medium and then recording content information specific to the content and device information specific to the data-recording apparatus, and configured to copy the content to the another recording medium, the content being that which is permitted to be copied only a limited number of times; and

a content-restoration control apparatus for collating the content information about the copied content and the device information associated with the content information, with device information about a device in which the content is to be written, when the content is lost in the storage place after the content has been recorded to the another recording medium by the second recording means, and for causing the first recording means to perform a process of writing the copied content back into an original storage place when collation is successfully performed.

16. The data-recording system according to claim 15, wherein the content-restoration control apparatus determines whether the content to be restored was restored in the past in combination with the recording medium storing the content, and performs a process of writing the copied content back into the device if the collation is successfully performed and if the content was not restored in the past.

17. The data-recording system according to claim 16, wherein the content-restoration control apparatus determines whether the device in which the content is to be restored is identical to the device in which the content has been previously restored, detects a restoration interval to determine whether a prescribed period has elapsed from a previous restoring process, and writes the copied content back into the device if the collation is successfully performed, if the device in which the content is to be restored is not identical to the device in which the content has been previously restored and if the prescribed period has elapsed from the previous restoring process.

18. The data-recording system according to claim 15, wherein the content information includes index information to be referred to when a music content is reproduced, information for checking possible falsification of the content and information for allowing reproduction for each set.

19. The data-recording system according to claim 15, wherein the coping from the original storage place to the another recording medium is to assign the right of using the content, and the content cannot be used in the original storage place unless the right of moving the content from the another recording medium to the original storage place is reverted.

20. The data-recording system according to claim 15, wherein the another recording medium has a secure region that can be used if verified and an ordinary record region, and the content is recorded in the secure region.

21. The data-recording system according to claim 15, wherein the content includes a music content and a video content.