Method and apparatus for recording of encrypted digital data

Method and apparatus for recording scrambled video audio signals

Method and apparatus for scrambling a high definition...

Method and apparatus for secure transmission of data

Method and apparatus for securely distributing large digital...

Method and apparatus for synthesizing and reducing the...

Method and apparatus for television signal scrambling using...

Method and apparatus for television signal scrambling using...

Method and apparatus for time-based charging for...

Method and device for processing a sequence of video images

Method and device for providing controlled access video...

Method and device for providing controlled access video...

Method and equipment for allocating to a television program,...

Method and system for a secure high bandwidth bus in a...

Method and system for embedding binary data sequences into...

Method and system for embedding message data in a digital...

Method and system for ensuring secure scrambling and...

Method and system for handling two CA systems in a same...

Method and system for information dissemination using...

Method and system for protecting video data