Patent ID: 6335812
Filing Date: 2002-01-01
Classification: H04B,H04W

Abstract:
A communication terminal apparatus used in a communication system including at least one first terminal having an optical communication means for optically communicating and for sending an identifier to discriminate the at least one first terminal, and at least one second terminal having a network communication means for communicating with a plurality of other second terminals through a network and for sending an identifier to discriminate the at least one second terminal, said communication terminal apparatus being a relay terminal to communicate between the first terminal and the second terminal, comprising:optical communication means for optically sending and receiving information with respect to the at least one first terminal; network communication means for sending and receiving information with respect to the at least one second terminal through the network; identifier sending means for sending an identifier to discriminate the relay terminal through said optical communication means and said network communication means; communicatable terminal discrimination means for discriminating the terminal communicatable with the relay terminal according to identifiers received from said optical communication means and said network communication means; communicatable terminal memory means for storing the identifiers of the communicatable terminals and an attribute representing the kind of said communication means from which each identifier is received; and received information sending means for comparing a destination identifier of received information with the identifiers stored in said communicatable terminal memory means, and for supplying the received information to said optical communication means or said network communication means according to the attribute of the identifier matched with the destination identifier.