Patent ID: 6034944
Filing Date: 2000-03-07
Classification: H04L,H04Q

Abstract:
A communication system, comprising:a plurality of node devices distributed in a plurality of locations;one or a plurality of local communication terminals connected to each of said node devices;a plurality of center devices that control said node devices and said local communication terminals that are being under control; andfacing communication path means that serially connect said node devices and said center devices,characterized in that said center devices transmit to said communication path means cells of data directed to said local communication terminals targeted for control, said node devices receive said cells of data from said communication path means, extract from the received data in question cells of data addressed to local communication terminals connected to own node device, and output the extracted cells of data to the pertinent local communication terminals, also transmit via said communication path means to said center devices cells of data from said local communication terminals connected to own node device.