METHOD AND SYSTEM FOR TRACKING AND MANAGING RIGHTS FOR DIGITAL MUSIC
First Claim
1. A method for digital rights management for a copyright digital work that is copied from device to device from among a plurality of devices, some of which are parent devices and some of which are child devices, and wherein a child device may be registered with a parent device, and wherein a copy of the digital work may encapsulate digital rights management (DRM) data that serves to determine one of at least two levels of access, namely, (i) permit full access to the digital work, or (ii) permit limited access to the digital work, comprising:
- enforcing rules for setting the DRM data within copies of the digital work that encapsulate DRM data, according to the following principles;
if the digital work is copied from a child device, C1, to a parent device, P1, with which C1 is registered, then the DRM data in the copy of the digital work within device P1 is kept at the same access level as the copy of the digital work within device C1;
if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to another child device, C2, which is also registered with a parent device, P1, then the DRM data in the copy of the digital work within device C2 is kept at the same access level as the copy of the digital work within device C1;
if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to a parent device, P2, other than P1, then the DRM data in the copy of the digital work within device P2 is set to access level (ii);
if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to a child device, C2, that is not registered with device P1, then the DRM data in the copy of the digital work within device C2 is set to access level (ii);
if the digital work is copied from a parent device, P1, to another parent device, P2, then the DRM data in the copy of the digital work within device P2 is set to access level (ii);
if the digital work is copied from a parent device, P1, to a child device, C1, that is not registered with device P1, then the DRM data in the copy of the digital work within device C1 is set to access level (ii).
2 Assignments
0 Petitions
Accused Products
Abstract
A method for digital rights management for a copyright work that is copied from device to device from among a plurality of devices, some of which are parent devices and some of which are child devices, and wherein a child device may be registered with a parent device, including copying a digital work from a parent device, P1, to a child device, C1, registered with device P1, the digital work encapsulating digital rights management (DRM) data that serves to permit full access to the digital work by parent device P1, and to deny access to the digital work by devices other than device P1, modifying the DRM data in the copy of the digital work within device C1, so as to permit full access to the digital work, for a prescribed time period, by device C1 and by child devices other than device C1, inserting auxiliary DRM data in the copy of the digital work within device C1, so as to permit full access to the digital work by device C1, and so as to permit limited access to the digital work by child devices other than device C1, if the digital work is copied from device C1 to a parent device P2 other than device P1, then modifying the DRM data in the copy of the digital work within device P2, so as to permit limited access to the digital work by device P2, and removing the auxiliary DRM data in the copy of the digital work within device P2, and if the digital work is copied from device C1 to a child device C2 other than device C1, then modifying the auxiliary DRM data in the copy of the digital work within device C2, so as to permit limited access to the digital work by child device C2 and so as to permit limited access to the digital work by child devices other than device C2. A system and a computer-readable storage medium are also described and claimed.
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Citations
24 Claims
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1. A method for digital rights management for a copyright digital work that is copied from device to device from among a plurality of devices, some of which are parent devices and some of which are child devices, and wherein a child device may be registered with a parent device, and wherein a copy of the digital work may encapsulate digital rights management (DRM) data that serves to determine one of at least two levels of access, namely, (i) permit full access to the digital work, or (ii) permit limited access to the digital work, comprising:
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enforcing rules for setting the DRM data within copies of the digital work that encapsulate DRM data, according to the following principles; if the digital work is copied from a child device, C1, to a parent device, P1, with which C1 is registered, then the DRM data in the copy of the digital work within device P1 is kept at the same access level as the copy of the digital work within device C1; if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to another child device, C2, which is also registered with a parent device, P1, then the DRM data in the copy of the digital work within device C2 is kept at the same access level as the copy of the digital work within device C1; if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to a parent device, P2, other than P1, then the DRM data in the copy of the digital work within device P2 is set to access level (ii); if the digital work is copied from a child device, C1, which is registered with a parent device, P1, to a child device, C2, that is not registered with device P1, then the DRM data in the copy of the digital work within device C2 is set to access level (ii); if the digital work is copied from a parent device, P1, to another parent device, P2, then the DRM data in the copy of the digital work within device P2 is set to access level (ii); if the digital work is copied from a parent device, P1, to a child device, C1, that is not registered with device P1, then the DRM data in the copy of the digital work within device C1 is set to access level (ii). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for digital rights management for a copyright digital work that is copied from device to device from among a plurality of devices, some of which are parent devices and some of which are child devices, and wherein a child device may be registered with a parent device, and wherein a copy of the digital work may encapsulate digital rights management (DRM) data that serves to determine one of at least two levels of access, namely, (i) permit full access to the digital work, or (ii) permit limited access to the digital work, comprising:
a digital rights manager within a child device C1 for enforcing rules for setting the DRM data within copies of the digital work that encapsulate DRM data, according to the following principles; if the digital work is copied from the child device, C1, to a parent device, P1, with which C1 is registered, then the DRM data in the copy of the digital work within device P1 is kept at the same access level as the copy of the digital work within device C1; if the digital work is copied from the child device, C1, which is registered with a parent device, P1, to another child device, C2, which is also registered with a parent device, P1, then the DRM data in the copy of the digital work within device C2 is kept at the same access level as the copy of the digital work within device C1; if the digital work is copied from the child device, C1, which is registered with a parent device, P1, to a parent device, P2, other than P1, then the DRM data in the copy of the digital work within device P2 is set to access level (ii); and if the digital work is copied from the child device, C1, which is registered with a parent device, P1, to a child device, C2, that is not registered with device P1, then the DRM data in the copy of the digital work within device C2 is set to access level (ii); and a digital rights manager within a parent device P1 for enforcing rules for setting the DRM data within copies of the digital work that encapsulate DRM data, according to the following principles; if the digital work is copied from the parent device, P1, to another parent device, P2, then the DRM data in the copy of the digital work within device P2 is set to access level (ii); and if the digital work is copied from the parent device, P1, to a child device, C1, that is not registered with device P1, then the DRM data in the copy of the digital work within device C1 is set to access level (ii). - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification