On Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to LG Electronics, the first patent addresses domain upgrade methods in digital rights management. Assigned to Sprint, the second patent addresses a digital rights management integrated service solution.
8,205,082, "Domain upgrade method in digital rights management," assigned to LG Electronics Inc. (KR).
Disclosed is domain upgrade method in Digital Rights Management (DRM) capable of reducing network resources by simplifying signal procedures at the time of transferring changed domain keys. A device joining after domain upgrade is provided with only a domain key of a domain generation after the domain upgrade, but is not provided with a domain key of the previous domain generation. Accordingly, even if the joining device is mal-operated or is hacked, contents before upgrade are prevented from being illegally used or leaking out.
8,205,001, "Digital rights management integrated service solution," assigned to Sprint Communications Company L.P.
The present disclosure provides a system for accessing content secured according to differing digital rights management protocols. The system comprises a device that presents the content and a client component loaded on the device that uses and requests content according to a first digital rights management protocol. The system includes a first content server that receives a request for and provides content according to the first digital rights management protocol and a second content server that receives a request for and provides content according to a second digital rights management protocol. A mediation component maps requests and responses between the client component and the second content server, mediating between the first and second digital rights management protocols. The disclosure contemplates mediating between open digital rights language (ODRL) and extensible right markup language (XRML) digital rights management protocols as well as other digital rights management protocols.