Tuesdays the patent office issues new patents. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to Audible Magic, the first of today's patents concerns techniques for copyright detection and protection. Assigned to Digital Keystone, the second patent concerns techniques for conditional access and digital rights management.
8,484,691, "Copyright detection and protection system and method," assigned to Audible Magic Corporation.
A method for detecting against unauthorized transmission of digital works comprises the steps of maintaining a registry of information permitting identification of digital copyrighted works, monitoring a network for transmission of at least one packet-based digital signal, extracting at least one feature from the at least one digital signal, comparing the extracted at least one feature with registry information and applying business rules based on the comparison result.
8,474,054, "Systems and methods for conditional access and digital rights management," assigned to Digital Keystone, Inc.
Conditional access (CA) and digital rights management (DRM) in digital media delivery, processing, and storage systems. Methods and apparatuses are provided for managing digital rights under the protection of multiple CA and/or DRM systems. Some embodiments provide secure and robust methods for bridging multiple DRM systems in the digital media content distribution and playback systems. The present invention simplifies content repurposing, after it has been bridged to a secondary DRM system, but still under the control of the original DRM system.