A reception apparatus includes: a reception unit for receiving the scrambled content, the scrambled content being scrambled so that a predetermined unit of scrambled content is descrambled using a descrambling key corresponding to the predetermined unit of scrambled content, and at least one piece of...http://www.google.fr/patents/US7391866?utm_source=gb-gplus-shareBrevet US7391866 - Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list
Broadcast apparatus and reception apparatus for providing a storage service ...
