This invention is a networked audio system (20). The invention includes a plurality of speaker nodes (100), a plurality of self-sufficient audio source node devices (300), an internet interface (400), a network control server (310), a legacy converter and controller (600) that connects to one or more...http://www.google.fr/patents/US7643894?utm_source=gb-gplus-shareBrevet US7643894 - Audio network distribution system
