On Thursdays the USPTO publishes new pending patent applications. Both of today's Spotlight Applications concern aspects of digital rights management. Assigned to Pantech (KR), the first application discloses techniques for digital rights management for use in mobile communication terminal. Assigned to Varimatrix, the second applcation discloses technques for detecting clone playback devices.
20110023083, "Method and apparatus for digital rights management for use in mobile communication terminal," assigned to Pantech (KR).
A digital rights management (DRM) apparatus in a mobile terminal includes DRM middleware that makes different types of DRM systems compatible. The DRM middleware includes at least one plug-in module to perform a conversion between different types of DRM contents. A part of the at least one plug-in module is downloaded in real time from a server and is executed. A part of the at least one plug-in module is executed by a server by remote control through a plug-in interface.
20110030065, "Systems and methods for detecting clone playback devices," assigned to Verimatrix.
Systems and methods are described for aggregating information obtained from messages between playback devices and content protection systems, including but not limited to conditional access systems, downloadable conditional access systems, and digital rights management systems, that include a unique identifier and applying user modifiable rules to the aggregated information to identify abnormal behavior associated with the unique identifier including but not limited to one or more clone playback devices utilizing the unique identifier or a rogue playback device utilizing a unique identifier. One embodiment includes a plurality of playback devices connected to a headend via a network, where the headend includes at least one content protection system, and a clone monitor configured to register playback devices based upon a unique identification supplied by each playback device, when communicating with the at least one content protection system. In addition, the clone monitor is configured to aggregate information associated with each playback device over time, where the information is obtained from messages that are transmitted between the playback device and the headend and that include a unique identifier, and the clone monitor is configured to apply rules to the aggregated information to identify at least one pattern of abnormal behavior in the aggregated information associated with a specific unique identifier.