Data transmitting system

Claim 1

A TRANSMISSION SYSTEM INCLUDING A TRANSMITTING STATION AND A RECEIVING STATION SELECTED FROM A PLURALITY OF RECEIVING STATIONS CONNECTED TO SAID TRANSMITTING STATION THROUGH DUPLEX SWITCHABLE COMMUNICATION CHANNELS, THE TRANSMITTING STATION COMPRISING MEANS FOR TRANSMITTING DATA REPRESENTATIVE SIGNALS AND CHECK-BACK COMPARISON MEANS OF SAID SIGNALS, RETRANSMITTED FROM SAID RECEIVING STATION, THE RECEIVING STATION COMPRISING MEANS FOR RECEIVING AND TRANSMITTING BACK SAID SIGNALS TO THE TRANSMITTING STATION, IN EACH OF SAID TRANSMITTING AND RECEIVING STATIONS A CENTRAL STORE WITH A PLURALITY OF STAGES ADAPTED TO STORE INDIVIDUALLY A PLURALITY OF SUCCESSIVE SIGNALS, ACCESS MEANS FOR INTRODUCING SAID SIGNALS AT ANY DESIRED STAGE FROM SAID TRANSMITTING MEANS, TRANSFER MEANS FOR TRANSFERRING SIMULTANEOUSLY THE SIGNALS CONTAINED IN STAGES OF GIVEN RANKS TO THE RESPECTIVE STAGES OF IMMEDIATELY LOWER RANKS AND TO THE TRANSMITTING MEANS, MEANS FOR DETERMINING THE TIME OF PROPAGATION OF THE SIGNALS FROM THE TRANSMITTING STATION TO THE RECEIVING STATION AND BACK FROM THE RECEIVING STATION TO THE TRANSMITTING STATION, AND CONTROL MEANS OPERATIVE TO CONTROL SAID ACCESS MEANS AND SAID TRANSFER MEANS IN ORDER TO LIMIT THE NUMBER OF STAGES USED IN SAID CENTRAL STORES TO THE NUMBER OF SIGNALS TRANSMITTED DURING SAID PROPAGATION TIME.