New patents are issued by the USPTO on Tuesdays. Both of this week's Spotlight Patents concern aspects of digital rights management. Assigned to Oracle, the first patent addresses service level digital rights management support in a multi-content aggregation and delivery system. Assigned to Arris Enterprises, the second patent addresses techniques for a Digital Rights Management (DRM) system that reduces time for a move transaction using DTCP-IP when a copy is moved back or checked back in to an originating Personal Video Recorder (PVR).
9,654,456, "Service level digital rights management support in a multi-content aggregation and delivery system," assigned to Oracle.
Content may be provided to an access device by the content delivery platform. When the access device decides to access the content, a request may be received at the content delivery platform. The request is intercepted at a URL proxy, which determines if the content has been purchased or not. If the content has been purchased, the request is redirected to a digital rights server. The digital rights server processes the request and determines digital rights for the content using the address. The digital rights are then provided such that the access device can access the content. If a user of the access device has not already purchased the content, a message may be sent to the access device requesting that the user purchase the content. Once the content is purchased, the digital rights are then provided such that the access device can access the content.
9,667,911, "Copy count for DTCP with an abbreviation hash used for check in copy," assigned to Arris Enterprises, Inc.
A Digital Rights Management (DRM) system is provided that reduces time for a move transaction using DTCP-IP when a copy is moved back or checked back in to an originating Personal Video Recorder (PVR). During a DTCP MOVE transaction, instead of transferring the full asset in a check back in operation to the PVR, a unique and abbreviated representation of the original copy of the asset would be made for the transfer. This abbreviated representation takes the form of a hash constructed from a hashing function which uses characteristics of the asset as inputs. This hash will have to be a unique and near guaranteed indicator of the original content, to a high probability, so that the copy control system could live up to the spirit of the DTCP spec and the DLNA interoperability guidelines.