Digital Rights Management for Differing Domain-Size Restrictions
AssigneeGeneral Instrument Corporation
InventorAlexander Medvinsky
Life of this patent
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Abstract
A digital rights management system includes a domain authority controller that manages different domain-size restrictions for different content sources. A subdomain is created for each content source and has a corresponding domain-size restriction. Different domain-size restrictions for the content sources are stored along with the number of devices registered for each subdomain. A domain authority controller is operable to register a device with a subdomain if the corresponding domain-size restriction is not violated. A device is allowed to use content from a content source if it is registered with the subdomain for the content source.
Claims20
A digital rights management (DRM) system comprising:
- data storage storing domain-size restrictions for each of multiple content sources, each domain-size restriction indicating a maximum number of devices in a domain that can share content from the content source;
- and
- a domain authority controller operable to determine whether the domain-size restriction for a source of the multiple sources is violated if a device is allowed to use content from the source based on the stored domain-size restriction for the source, and
- the domain authority controller is further operable to register the device with a subdomain for the source if the domain-size restriction for the source is not violated, wherein the device is allowed to use the content from the source if the device is registered with the subdomain for the source.
A method for enforcing different domain-size restrictions of multiple content sources, the method comprising:
- for each content source of the multiple content sources, storing a domain-size restriction indicating a maximum number of devices in a domain that can share content from the content source;
- determining whether the domain-size restriction for a content source of the multiple content sources is violated if a new device is allowed to use content from that content source based on the stored domain-size restriction for the source;
- and
- registering the device with a subdomain for the content source if the domain-size restriction for the content source is not violated, wherein the device is allowed to use the content from the content source if the device is registered with the subdomain for the content source.
A computer readable storage medium storing at least one computer program that when executed performs a method for enforcing different domain-size restrictions of multiple content sources, the method comprising:
- for each content source of the multiple content sources, storing a domain-size restriction indicating a maximum number of devices in a domain that can share content from the content source;
- determining whether the domain-size restriction for a content source of the multiple content sources is violated if a new device is allowed to use content from that content source based on the stored domain-size restriction for the source;
- and
- registering the device with a subdomain for the content source if the domain-size restriction for the content source is not violated, wherein the device is allowed to use the content from the content source if the device is registered with the subdomain for the content source.
Dependencies are inferred from the claim text.