Method and apparatus for secure transmission of data

Method and apparatus for securely distributing large digital...

Method and apparatus for securing control words

Method and apparatus for securing control words

Method and apparatus for securing digital video recording

Method and apparatus for supporting broadcast efficiency and...

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 the encryption of data

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

Method and apparatus for transmitting encryption-resultant...

Method and apparatus for use of a time-dependent watermark...

Method and apparatus providing confidentiality, integrity...

Method and apparatus to control copying from a drive device...

Method and device for controlling information signal recording

Method and device for guaranteeing the integrity and...

Method and device for incorporating additional information...

Method and device for processing a sequence of video images

Method and device for providing controlled access video...