An outside DTCP bridge for relaying information between an outside communication device connected to an outside network and a home communication device connected to a home network, carries out a first authentication and key exchange processing for purpose of copyright protection between the outside DTCP...http://www.google.com/patents/US7370112?utm_source=gb-gplus-sharePatent US7370112 - Communication scheme using outside DTCP bridge for realizing copyright protection
Communication scheme using outside DTCP bridge for realizing copyright ...