The method and system relate to securing transfer, storage, and playback of all types of media content, including television, music, electronic games, and other types of electronic data....http://www.google.fr/patents/US8099369?utm_source=gb-gplus-shareBrevet US8099369 - Method and system for securing content in media systems Recherche avanc???e dans les brevets Num???ro de publicationUS8099369 B2