Patent ID: 7602078

Claim:
A combinational power cord for multimedia use, having at least one multimedia power device, said multimedia power device comprising: a power line module coupling with one end of a power line to connect with an AC power distribution and to convert an AC power from of said AC power distribution line into suitable driving power for modules depicted below; a case, having a plurality of power sockets and a plurality of multimedia ports disposed thereon for the AC power from said AC power distribution line to be distributed to said plurality of power sockets; at least one terminal connected to said power line module; at least one socket disposed on the outside of said case for connecting with a corresponding socket of another multimedia power device; at least one multimedia port disposed on the outside of said case for different multimedia devices to couple with said multimedia power device via different multimedia ports; a multimedia network module which is built-in inside said case for connecting with said plurality of multimedia ports; and a power line communication module which is built-in inside said case for communicating with said power line module and said multimedia network module, said power line communication module using the data communication protocol from of said AC power distribution to convert and modulate multimedia packets sent from said multimedia network module and then sending them over said AC power distribution, in the mean time, said power line communication module using the data communication protocol of said AC power distribution line to convert and demodulate a data transmitted by said AC power distribution into packets suitable for said multimedia network module and then sending packets to said multimedia network module for processing.