公开(公告)号：EP1833229A4

公开(公告)日：2009-04-22

申请号：EP05816874

申请日：2005-12-15

Applicant: IBM

Inventor： OCHIAI KAZUMASA ,  KAMIJO NOBORU ,  AIHARA TOHRU

IPC: H04L29/10 ,  H01R13/71 ,  H04B3/54 ,  H04L12/28 ,  H04L12/46

CPC classification number: H04L63/08 ,  H01R27/00 ,  H04B3/54 ,  H04B2203/5408 ,  H04B2203/5445 ,  H04B2203/5454

Abstract: [PROBLEMS] To safely and easily perform power cable communication with a server providing a desired service. [MEANS FOR SOLVING PROBLEMS] There is provided a communication relay device for relaying communication data between an information processing device and a communication network by utilizing a power cable where a communication signal is superimposed on a power signal. The communication relay device includes: an authentication information storage unit for storing authentication information for the communication relay device; a power plug which can be detachably attached to w power socket for connecting an electric device to the power cable; a connection detection unit for detecting that the power plug is connected to the power socket; an authentication unit for transmitting authentication information to the server via the power cable if the power plug is connected tot he power socket so that the server authenticates the communication relay device; and a communication relay unit for relaying the communication data from the information processing device for the communication network if the authentication by the authentication unit is sucessful.