New patents are issued by the PTO on Tuesdays. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to Tata (IN), the first of today's patents addresses techniques for access rights management in enterprise digital rights management systems. Assigned to Adobe, the second patent addresses techniques for protecting video as it is decoded by a codec.
9,015,854, "Access rights management in enterprise digital rights management systems," assigned to Tata Consultancy Services (IN).
Systems and methods for obtaining access rights to an encrypted document are described. The method comprises receiving a request for obtaining access rights to the encrypted document from a requestor, through an eDRM interface. The method further comprises generating a request inbox corresponding to a granter of the encrypted document. The request inbox contains at least the request received from the requestor. The generated request inbox is sent to the granter through the eDRM interface. The method furthermore comprises obtaining a response to the request from the granter, and providing a status alert indicative of the response to the requestor through the eDRM interface.
9,014,374, "Protecting video as it is decoded by a codec," assigned to Adobe.
In one aspect, a method includes: obtaining compressed video content within a video content processing module, a portion of a document structure of the compressed video content conforming to a predefined codec, the portion of the document structure including a plurality of video frames; decrypting the compressed video content in accordance with a digital rights management data encryption applied to the compressed video content; adding information in an extension frame associated with a portion of the document structure; and applying an encoding technique to content of one or more of the plurality of video frames after the decrypting, wherein the extension frame flags the applied encoding technique; and providing the compressed video content, including the encoded content, to a media player including a codec conforming to the predefined codec.