Determining whether a digital rights management system's...
Device and method for preventing fraudulent copies of data...
Device and method for producing an optical registration...
Device and method for user identification check based on...
Device for encoding encrypted information on an optical disk
Devices, systems and methods for restricting use of digital...
Digital active advertising
Digital active advertising
Digital application operating according to aggregation of...
Digital audio and video playback with performance complement...
Digital certificate support system, methods and techniques...
Digital coin tracing using trustee tokens
Digital coin-based postage meter
Digital computer system and methods for implementing a...
Digital content distribution system and protection method
Digital content distribution using web broadcasting services
Digital content distribution using web broadcasting services
Digital content encryption and decryption method and...
Digital content management system and apparatus
Digital content preparation system