Copy detection for digitally-formatted works
Copy generation management method, information signal...
Copy prevention apparatus and method in digital broadcasting...
Copy protection apparatus and method
Copy protection of data
Copy protection of data
Copy-protecting management using a user scrambling key
Copyright information management system
Copyright management apparatus
Copyright protection of digital images transmitted over...
Criticality classification system and method
Criticality classification system and method
Cryptographic method and apparatus for restricting access to tra