METHOD AND DEVICE FOR DETERMINING A UNIQUE CONTENT INSTANCE IDENTIFIER, UNIQUE CONTENT INSTANCE IDENTIFIER AND METHOD AND DEVICE FOR MANAGING CONTENT LICENSES
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Abstract
A method and a device for determining a unique content instance identifier of a content item, wherein the content item is received by a receiving device and provided to a content management system and includes an original content identifier of an original identification scheme. The method: defines a data structure of the unique content item identifier depending on the original identification scheme, the data structure including a first, a second and third part, wherein the size of at least one of the second and third parts depends on the original identification scheme; stores a code in the first part, wherein the code uniquely identifies the original identification scheme; stores the original content identifier, a derivative thereof, and/or a device identifier identifying the receiving device in the second part; and stores a freely allocatable value in the third part, such that no duplicate unique content instance identifiers are generated by the device.
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Citations
46 Claims
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1-23. -23. (canceled)
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24. A method for determining a unique content instance identifier (CIID) of a content item, wherein said content item has been received by a receiving device and provided to a content management system and includes an original content identifier of an original identification scheme, the method comprising:
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defining a data structure of said unique content item identifier (CIID) depending on said original identification scheme, said data structure comprising a first, a second, and a third part, wherein a size of at least one of said second and third parts depends on the original identification scheme; storing a code in said first part, wherein said code uniquely identifies said original identification scheme; storing said original content identifier, a derivative thereof, and/or a device identifier, identifying said receiving device in said second part; and storing a freely allocatable value in said third part, such that no duplicate unique content instance identifiers (CIID) are generated by said device. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A device for determining a unique content instance identifier (CIID) of a content item, wherein said content item has been received by a receiving device and provided to a content management system and comprises an original content identifier of an original identification scheme, comprising a system controller adapted to:
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apply a data structure of said unique content item identifier (CIID) depending on said original identification scheme, said data structure comprising a first, a second, and a third part, wherein a size of at least one of said second and third parts depends on the original identification scheme; store a code in said first part, wherein said code uniquely identifies said original identification scheme; store said original content identifier, a derivative thereof, and/or a device identifier, identifying said receiving device in said second part; store a freely allocatable value in said third part, such that no duplicate unique content instance identifiers (CIID) are generated by said device. - View Dependent Claims (40, 41)
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42. A unique content instance identifier (CIID) of a content item, wherein said content item has been received by a receiving device and provided to a content management system and comprises an original content identifier of an original identification scheme, comprising:
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a data structure depending on said original identification scheme, said data structure comprising a first, a second, and a third part, wherein a size of at least one of said second and third parts depends on the original identification scheme; said first part comprising a code, wherein said code uniquely identifies said original identification scheme; said second part comprising said original content identifier, a derivative thereof, and/or a device identifier, identifying said receiving device in said second part; and said third part comprising a freely allocatable value such that no duplicate unique content instance identifiers (CIID) exist. - View Dependent Claims (43, 44)
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45. A method for managing content licenses (CL) in a content management and protection system, wherein content items are handled, comprising:
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creating by a device, comprised within said system, a content license (CL) for a content item to manage the usage of said content item within said system; and storing a device identifier of the device which has created the first content license (CL) for said content item as a Content License Creator (CLC) field in the content license (CL), such that this value is not changed by any compliant device within said content management and protections system.
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46. A device for managing content licenses (CL) in a content management and protection system, wherein content items are handled, comprising:
a system controller adapted to; create a content license (CL) for a content item to manage the usage of said content item within said system, and store a device identifier of said device, which has created the first content license for said content item, as a Content License Creator (CLC) field in the content license (CL), such that this value is not changed by any compliant device within said content management and protections system.
Specification