Tuesdays the PTO issues new patents. Both of this week's Spotlight Patents concern aspects of digital rights management. Assigned to LG Electronics (KR), the first patent addresses techniques for sharing rights object in digital rights management. Assigned to the Electronics and Telecommunications Research Institute (KR), the second patent addresses techniques for interoperable digital rights management.
8,554,927, "Method for sharing rights object in digital rights management and device and system thereof," assigned to LG Electronics (KR).
A method for sharing Rights Object (RO) of a specific DRM content resident in a certain device with different devices (or terminals) in a Digital Rights Management (DRM) system, in which a first device and a second device can share an RO for DRM content by performing a mutual authentication between the first device and the second device to set a session therebetween; creating, by the first device, a second RO for the second device; and transferring the second RO from the first device to the second device through a particular interface. Thereby, while the first device consumes a specific DRM content with employing the first RO, the second device simultaneously consumes the specific DRM content with the second RO transferred from the first device.
8,544,102, "Interoperable digital rights management device and method thereof," assigned to the Electronics and Telecommunications Research Institute (KR)
Provided are an interoperable DRM device and method thereof. The interoperable DRM device includes: an interface for communicating with a terminal that performs predetermined operations for reproducing contents; and a DRM processor for managing digital rights of the contents. The DRM processor exchanges messages with the terminal for interoperably managing the digital rights.