Data converter apparatus and method, data transmission/reception apparatus and method, and network system

摘要

A network system includes a plurality of communication nodes. In the network system, data transmitted from a server apparatus ( 1 ) is received by a PC ( 2 ) and a PDA ( 3 ). Each of relay nodes 4 obtains a communication network parameter concerning the communication network connecting the communication nodes with each other. Each of the relay nodes ( 4 ) also determines a communication route, based on a format conversion parameter concerning format of data transmitted from the server apparatus ( 1 ) and types of format conversion at format converters ( 5 a) and ( 5 b), and the obtained communication network parameter.