Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to Samsung (KR), the first of today's patents concerns techniques for protecting digital content in a digital rights management (DRM) system. Assigned to Toshiba (JP), the second patent concerns an AV communication control circuit for realizing copyright protection with respect to radio LAN.
8,355,989, "Method and apparatus for importing content," assigned to Samsung (KR).
A method and apparatus for protecting digital content in a digital rights management (DRM) system are provided. The method includes: determining a usage rule for content included in a first content file based on usage constraint information included in the first content file; and generating a second content file complying with this usage rule. According to the method and apparatus, the security requirement of content creators and content providers can be satisfied and at the same time the requirement of content consumers for freer usage can be satisfied.
8,355,504, "AV communication control circuit for realizing copyright protection with respect to radio LAN," assigned to Toshiba (JP).
An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line through the copyright protection processing unit and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.