| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a system wherein exclusive additional equipment and special interface for rewriting are unnecessary, and change and/or update of a program, stored data, etc., are performed effectively without using manhours and cost even in a system to which a large number of terminal equipment are connected. SOLUTION: A transmitting and receiving part 240 which is connected with a master controller 200 for controlling comprehensively the whole of a master communication apparatus 101 receives transmission signals from a large number of slave communication apparatuses via an antenna 260, and performs transmission to the slave communication apparatuses. Received data obtained by the transmitting and receiving part 240 are made a communication signal 230, accommodated temporarily in a signal buffer 250, subjected to proper signal processing by a signal processing part 220 and inputted as received data in the controller 200. Transmission data transmitted from the transmitting and receiving part 240 are made a communication signal 230, by a method wherein data from the controller 200 are subjected to proper signal processing by the signal processing part 220, converted to a signal for transmission by the transmitting and receiving part 240, and transmitted from the antenna 260 toward a large number of the slave communication apparatuses.</p> |
