US 8,413,256 B2Granted

Content protection and digital rights management (DRM)

AssigneeCox Communications, Inc.

InventorsFrancisco Gonzalez, Edgar V. Shrum, Jr.

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Abstract

An end to end content protection system that includes enhanced digital rights management (DRM). The system provides content delivery to devices over a managed multimedia home network. The system includes a domain manager for receiving content, wherein the domain manager includes a cable card, conditional access component and a MSO security application and a managed client device, coupled to and registered with the domain manager, the managed client device running a security DRM application client, the managed client device communicates with the MSO security application in the domain manager, wherein the MSO security application of the domain manager and the security DRM application client of the managed client instantiate a preferred DRM as an overlay on top of any other content protection scheme.

Claims20

Dependent claims

A system providing content delivery to devices over a managed multimedia home network, comprising:

a domain manager for receiving content from a conditional access system, the domain manager being configured to communicate with a managed client device and a non-managed client device on the multimedia home network, the domain manager providing a secure domain for communication with the managed client device, the domain manager including a cable card, conditional access component and a DRM system,
wherein the DRM system includes a first content protection scheme and a second content protection scheme,
the first content protection scheme allowing communication with the non-managed client device via the multimedia home network, the non-managed client device being operative to provide viewing of a selected portion of the content from the conditional access system, and
the second content protection scheme providing encrypted communication with the managed client device via the secure domain, the managed client device being coupled to and registered with the domain manager, the domain manager and the managed client device being operative to instantiate the second content protection scheme as an overlay on top of the first content protection scheme, the managed client device being operative to provide viewing of all of the content from the conditional access system.

1 more element

A method for providing content delivery to devices over a managed multimedia home network, comprising:

receiving content from a conditional access system at a domain manager, the domain manager being configured to communicate with a managed client device and a non-managed client device on the multimedia home network, the domain manager providing a secure domain for communication with managed client devices registered on the secure domain, the domain manager including a cable card, conditional access component and a DRM system, wherein the DRM system includes a first content protection scheme and a second content protection scheme, the first content protection scheme allowing communication with the non-managed client device via the multimedia home network to provide viewing of a selected portion of the content from the conditional access system and the second content protection scheme providing encrypted communication with the managed client device via the secure domain to provide viewing of all of the content from the conditional access system, the domain manager and the managed client device being operative to instantiate the second content protection scheme as an overlay on top of the first content protection scheme;
transmitting the selected portion of the content from the conditional access system via the first content protection scheme upon receipt of a request for the content from the non-managed client device;
and
transmitting all of the content from the conditional access system via the second content protection scheme upon receipt of a request for content from the managed client device.

1 more element

A method for providing content delivery to devices over a multimedia home network, comprising:

receiving content from a conditional access system at a domain manager, the domain manager being configured to communicate with a managed client device and a non-managed client device on the multimedia home network, the domain manager including a cable card, conditional access component and a DRM system, wherein the DRM system includes a first content protection scheme and a second content protection scheme, the first content protection scheme allowing communication with the non-managed client device via the multimedia home network to provide viewing of a selected portion of the content from the conditional access system and the second content protection scheme providing encrypted communication with the managed client device via the secure domain to provide viewing of all of the content from the conditional access system;
transmitting the selected portion of the content from the conditional access system via the first content protection scheme upon receipt of a request for the content from the non-managed client device;
and
transmitting all of the content from the conditional access system via the second content protection scheme upon receipt of a request for content from the managed client device.

1 more element

Dependencies are inferred from the claim text.