NETWORK COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To achieve high quality broadcast transmission by simple processing. SOLUTION: The network system relays a broadcast unit signal where the same information contents are accommodated to pluralities of destinations for broadcast transmission in a network where at least logically a star circuit line is preset. Also, the network system should have pluralities of pieces of node apparatus to be broadcasted that at least receive the broadcast unit signal via the star circuit line, and a broadcast node apparatus that executes the broadcast transmission of the broadcast unit signal to node apparatus to be broadcasted via the star circuit line.