System, device and method for interoperability between different digital rights management systems
First Claim
1. A method for processing content protected according to a first digital rights management format for access by at least one end user communication device configured to support a second digital rights management format, comprising the steps of:
- providing a Domain Authority configured for defining and managing a domain of end user communication devices allowed to share at least a portion of the protected content;
providing a Limited Rights Issuer configured for receiving content and digital rights management information in the first digital rights management format and for issuing content and digital rights management information in the second digital rights management format to at least one end user communication device within the domain of end user communication devices defined by the Domain Authority;
registering the Limited Rights Issuer with the Domain Authority in such a way that the Limited Rights Issuer is associated with the defined domain and issued a domain key, wherein the Limited Rights Issuer uses the domain key to generate at least a portion of the digital rights management information that allows end user communication devices within the defined domain to access protected content;
translating content and digital rights management information in the first digital rights management format received by the Limited Rights Issuer to content and digital rights management information in the second digital rights management format;
installing translated content and digital rights management information in the second digital rights management format from the Limited Rights Issuer to at least one end user communication device within the defined domain; and
accessing the translated content in the second digital rights management format using the digital rights management information in the second digital rights management format by at least one end user communication device on which the translated content and associated digital rights management information was installed.
4 Assignments
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Accused Products
Abstract
A system, device and method for allowing protected content to be transferred to end user communication devices that support different digital rights management (DRM) formats or schemes than the DRM format of the content provider. The method includes providing a Limited Rights Issuer (LRI) that issues content and associated digital rights to one or more of the end user devices within a domain defined by a Domain Authority with which the LRI has registered. The Limited Rights Issuer also translates content and associated digital rights information from the DRM format of an upstream DRM system to the DRM format of a downstream DRM system, which includes the end user devices within the defined domain. The system allows select end user devices to enjoy interoperability of content protected under different DRM schemes, while allowing content providers to still maintain a suitable level of DRM protection for their content.
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Citations
20 Claims
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1. A method for processing content protected according to a first digital rights management format for access by at least one end user communication device configured to support a second digital rights management format, comprising the steps of:
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providing a Domain Authority configured for defining and managing a domain of end user communication devices allowed to share at least a portion of the protected content; providing a Limited Rights Issuer configured for receiving content and digital rights management information in the first digital rights management format and for issuing content and digital rights management information in the second digital rights management format to at least one end user communication device within the domain of end user communication devices defined by the Domain Authority; registering the Limited Rights Issuer with the Domain Authority in such a way that the Limited Rights Issuer is associated with the defined domain and issued a domain key, wherein the Limited Rights Issuer uses the domain key to generate at least a portion of the digital rights management information that allows end user communication devices within the defined domain to access protected content; translating content and digital rights management information in the first digital rights management format received by the Limited Rights Issuer to content and digital rights management information in the second digital rights management format; installing translated content and digital rights management information in the second digital rights management format from the Limited Rights Issuer to at least one end user communication device within the defined domain; and accessing the translated content in the second digital rights management format using the digital rights management information in the second digital rights management format by at least one end user communication device on which the translated content and associated digital rights management information was installed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for accessing protected content issued from an upstream digital rights management system in a first digital rights management format by at least one end user communication device in a downstream digital rights management system and configured to support a second digital rights management format, comprising the steps of:
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receiving, by the end user communication device, content and digital rights management information that has been translated by a Limited Rights Issuer from the first digital rights management format to the second digital rights management format, wherein the Limited Rights Issuer is registered with a Domain Authority in such a way that the Limited Rights Issuer is issued a domain key associated with a defined domain of end user communication devices, by the Domain Authority; receiving, by the end user communication device, an authenticity certificate from the Limited Rights Issuer, wherein the authenticity certificate is signed by the Limited Rights Issuer; validating the authenticity of the received translated digital rights management information in the second digital rights format using the received authenticity certificate; if the authenticity of the received translated digital rights management information in the second digital rights format is validated, installing the received translated digital rights management information in the second digital rights format; and accessing the received content in the second digital rights format using the installed translated digital rights management information in the second digital rights format. - View Dependent Claims (12, 13, 14, 15)
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16. A Limited Rights Issuance hardware device for providing content protected according to a first digital rights management (DRM) format to at least one end user communication device configured to support a second digital rights management format, comprising:
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a processor configured to register the device with a Domain Authority in such a way that the device is associated with a domain defined by the Domain Authority of at least one end user communication device in a downstream digital rights management system and the device is issued a domain key by the Domain Authority; a DRM agent coupled to the processor for receiving content and digital rights management information in the first digital rights management format from an upstream digital rights management system and transferring such information to the controller; and a translator coupled to the controller for translating, in response to the processor registering the device with the Domain Authority, at least a portion of the content and digital rights management information in the first digital rights management format to content and digital rights management information in the second digital rights management format to produce translated content and digital rights management information, using the domain key, wherein the translated content and digital rights management information is formatted in such a way that it accessible by at least one end user communication device within the domain of end user communication devices defined by the Domain Authority, wherein the device is configured to install the translated content and digital rights management information to at least one end user communication device within the domain defined by the Domain Authority in response to a request by the end user communication device for access to the translated content and digital rights management information. - View Dependent Claims (17, 18, 19, 20)
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Specification