Patent ID: 6256321
Filing Date: 2001-07-03
Classification: H04B,H04L,H04M,H04Q

Abstract:
An information communication network system, comprising:a plurality of information communication devices to which at least one information device is connected;tree shaped or star shaped bidirectional transmission lines for connecting said information communication devices; andat least one central information communication control device located upward of said bidirectional transmission lines,wherein said central information communication control device, includes,access control information generating means for detecting an information communication access state on upward transmission lines in said bidirectional transmission lines and for generating information communication access control information in order to control accesses of said upward transmission lines by said information communication devices, anddownward transmission means for transmitting said information communication access control information, produced by said access control information generating means, to downward transmission lines in said bidirectional transmission lines toward said plurality of information communication devices, andwherein each of said plurality of information communication devices, includes,access control information receiving means for receiving said information communication access control information transmitted from said central information communication control device, andinformation communication control means for controlling information communication processing of a respective one of said plurality of information communication devices based on said information communication access control information received by said access control information receiving means.