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Systems and methodologies are provided for a Digital Rights Management (DRM) that permits a service provider implementing DRM (the Service), to distribute and use digital contents to a plurality of devices designated by a user, via employing a registration component and a DRM component. The registration component can associate a user with a particular device among the plurality of devices, and also associate the device with its DRM challenge. The DRM component can issue licenses for content(s) used on the particular device. Such an arrangement facilitates users' ability to roam and use a digital content purchased across a number of devices designated by the user and approved by the Service.

Inventors: Christian E. Schrock, Yevgeny Zarakhovsky, James N. Reitz, Oliver R. Roup, Olivier Zoltan Peter Garamfalvi
Original Assignee: Microsoft Corporation
Current U.S. Classification: 705/75

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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US7681245Aug 30, 2002Mar 16, 2010Avaya Inc.Remote feature activator feature extraction
US7698225Aug 30, 2002Apr 13, 2010Avaya Inc.License modes in call processing
US7707116Aug 30, 2002Apr 27, 2010Avaya Inc.Flexible license file feature controls
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US7814023Sep 8, 2005Oct 12, 2010Avaya Inc.Secure download manager
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US7895341Apr 11, 2007Feb 22, 2011The DIRECTV Group, Inc.Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions
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US8095469Jan 24, 2007Jan 10, 2012Fujitsu LimitedContent management program, method and device
US8103000Mar 16, 2010Jan 24, 2012Sony Corporation
Sony Electronics Inc.		Slice mask and moat pattern partial encryption
US8140601Apr 14, 2006Mar 20, 2012Microsoft CoporationLike processing of owned and for-purchase media
US8229858Feb 4, 2005Jul 24, 2012Avaya Inc.Generation of enterprise-wide licenses in a customer environment
US8243921Aug 9, 2007Aug 14, 2012Sony Corporation
Sony Electronics Inc.		Decryption system
US8244884Apr 11, 2007Aug 14, 2012The DIRECTV Group, Inc.Method and apparatus for file sharing between a group of user devices with crucial portions sent via satellite and non-crucial portions sent using a peer-to-peer network
US8245312Jul 27, 2007Aug 14, 2012Samsung Electronics Co., Ltd.Method and apparatus for digital rights management

Claims

1. A system that facilitates digital rights management (DRM), comprising:

a registration component that registers a user and associates a plurality of devices with the user; and

a DRM component that issues a license for a Content purchased by the user, for use of the Content on the plurality of devices.

2. The system of claim 1, another user shares a subset of the plurality of devices with the user, to use purchased content on the subset.

3. The system of claim 1, the license is associated with a DRM challenge.

4. The system of claim 1, further comprising a Task Queue that stores Contents or licenses associated with the user.

5. The system of claim 1, further comprising a tracking component that tracks Contents purchased by the user and a device to which license(s) have been downloaded.

6. The system of claim 1, the Service further comprising an Internet Key Exchange.

7. The system of claim 3, the license is encrypted to a public key encrypted in the DRM challenge.

8. The system of claim 3, the license is unique to the device and the content.

9. The system of claim 3, the device being unregistered for a specific user.

10. The system of claim 3, the DRM challenge incorporates a versioning scheme.

11. The system of claim 3, further comprising a security component that restricts access the content on a subset of the devices.

12. The system of claim 3, further comprising a central device that receives a main license and issues sublicenses to other devise.

13. The system of claim 12, the central device functions as broadcasting center for the other devices.

14. A method of facilitating digital rights management (DRM) comprising:

registering a user and a plurality of devices thereof with a Service; and

issuing licenses for contents purchased by the user, each license ties one content to one device, and enables use of the contents on the plurality of devices.

15. The method of claim 14 further comprising sharing a device from the plurality of devices with another user purchasing content from the Service.

16. The method of claim 14 further comprising receiving a DRM challenge by the Service from a device.

17. The method of claim 16 further comprising issuing a license to the device based on the DRM challenge of the device.

18. The method of claim 16 further comprising encrypting a license into a key of the DRM challenge.

19. The method of claim 14 further comprising disabling a license by the Service.

20. The method of claim 15 further comprising registering a same device by multiple users with the Service.

21. The method of claim 14 further comprising unregistering a device with the Service.

22. The method of claim 21 further comprising performing a reference count on the device to be unregistered to determine whether the device is shared by other users.

23. The method of claim 22 further comprising maintaining a license for contents purchased by other users.

24. The method of claim 14 further comprising issuing licenses to a main device that further issues sublicenses to other devices.

25. The method of claim 24 further comprising broadcasting Content via the main device to the other devices.

26. A computer readable medium having stored thereon computer executable instructions for carrying out the method of claim 14.

27. A computer-readable medium having stored thereon a data structure comprising:

a computer executable component that registers a user and associates a plurality of devices with the user; and

a further computer executable component that issues licenses for contents purchased by the user in response to a DRM challenge sent by a device, for use of the contents on the plurality of devices.

28. The computer readable medium of claim 27 further comprising a component that tracks licenses issued to the plurality of devices.

29. A method of facilitating digital rights management (DRM) comprising:

registering a user and a plurality of devices thereof with a Service; and

issuing a license for a content for use on the plurality of devices, each license ties one content to one device.

30. A system that facilitates digital rights management (DRM), comprising:

means for registering a user and associating a plurality of devices with the user; and

means for issuing licenses for contents purchased by the user, for use on the plurality of devices.

31. The system of claim 30 further comprising means for tracking contents purchased by the user and the plurality of devices the licenses have been downloaded thereto.

Drawings