Method and system for improved digital rights management

• US 20070265977A1
• Filed: 05/12/2006
• Published: 11/15/2007
• Est. Priority Date: 05/12/2006
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Read, Chris
• Application Number:
  US11/433,112
• Publication Number:
  US 20070265977A1
• Time in Patent Office: Days
• US Class Current: 705/59
• CPC Class Codes: G06Q 20/1235 with control of digital rights management [DRM]

Abstract

Embodiments of the present invention are directed to a method and system for managing rights associated with digital content. More specifically, embodiments provide an efficient digital rights management (DRM) mechanism for improved protection of and control over the use of digital content, which also reduces the adverse effect on the fair use rights of a purchaser when lending the content to a third party. In one embodiment, a first content segment is accessed. Thereafter, a second content segment is generated from the first content segment, wherein the second content segment is a reproduction of a portion of the first content segment. A plurality of rights associated with the first content segment are then limited upon activation of a license corresponding to the second content segment. Thereafter, the plurality of rights associated with the first content segment are restored upon deactivation of the license corresponding to the second content segment.

Claims

1. A method for managing rights associated with digital content, said method comprising:

accessing a first content segment;

generating a second content segment from said first content segment, wherein said second content segment is a reproduction of a portion of said first content segment;

limiting a plurality of rights associated with said first content segment upon activation of a license corresponding to said second content segment; and

restoring said plurality of rights associated with said first content segment upon deactivation of said license corresponding to said second content segment.

2. The method of claim 1, wherein said license corresponding to said second content segment permits playback and prevents copying of said second content segment.

3. The method of claim 1, wherein said limiting further comprises revoking the right to playback said first content segment.

4. The method of claim 1, wherein said digital content resides on a computer-usable medium.

5. The method of claim 4, wherein said computer-usable medium comprises non-volatile memory.

6. The method of claim 1, wherein said content resides within a memory of a portable computing device.

7. The method of claim 1, wherein said activation occurs upon a first access of said second content segment.

8. The method of claim 1, wherein said deactivation of said second content segment occurs at the expiration of a predetermined time period.

9. The method of claim 1, wherein said deactivation of said second content segment occurs at a predetermined time.

10. The method of claim 1, wherein said deactivation of said second content segment occurs after a predetermined number of accesses of said second content segment.

11. The method of claim 1, wherein said license and said second content segment both reside on a same computer-usable medium.

12. The method of claim 11, wherein said plurality of rights and said first content segment both reside on a same computer-usable medium.

13. A method for managing rights associated with a computer-usable medium containing digital content, said method comprising:

assigning a first license to said computer-usable medium, wherein said first license provides a plurality of rights to a first user of said computer-usable medium, and wherein said plurality of rights are associated with content on said computer-usable medium;

assigning a second license to said computer-usable medium in response to a transfer of said computer-usable medium to a second user, wherein said second license adjusts said plurality of rights; and

restoring said first license in response to a transfer of said computer-usable medium to said first user.

14. The method of claim 13, wherein said second license permits playback and prevents copying of said digital content.

15. The method of claim 13, wherein said computer-usable medium comprises non-volatile memory.

16. The method of claim 13, wherein said license and said second content segment both reside on a same computer-usable medium.

17. The method of claim 16, wherein said plurality of rights and said first content segment both reside on a same computer-usable medium.

18. A computer system comprising a processor coupled to a bus and a memory coupled to said bus, wherein said memory comprises instructions that when executed on said processor implement a method for managing rights associated with digital content, said method comprising:

accessing a first content segment;

generating a second content segment from said first content segment, wherein said second content segment is a reproduction of a portion of said first content segment;

limiting a plurality of rights associated with said first content segment upon activation of a license corresponding to said second content segment; and

restoring said plurality of rights associated with said first content segment upon deactivation of said license corresponding to said second content segment.

19. The system of claim 18, wherein said license corresponding to said second content segment permits playback and prevents copying of said second content segment.

20. The system of claim 18, wherein said limiting further comprises revoking the right to playback said first content segment.

21. The system of claim 18, wherein said digital content resides on a computer-usable medium.

22. The system of claim 21, wherein said computer-usable medium comprises non-volatile memory.

23. The system of claim 18, wherein said activation occurs upon a first access of said second content segment.

24. The system of claim 18, wherein said deactivation of said second content segment occurs at the expiration of a predetermined time period.

25. The system of claim 18, wherein said deactivation of said second content segment occurs at a predetermined time.

26. The system of claim 18, wherein said deactivation of said second content segment occurs after a predetermined number of accesses of said second content segment.

27. The system of claim 18, wherein said license and said second content segment both reside on a same computer-usable medium.

28. The system of claim 27, wherein said plurality of rights and said first content segment both reside on a same computer-usable medium.