| 摘要 |
PURPOSE:To enable to increase the processing ability of telephone exchanger, by providing the managing memory centralizing the display of the end of reception for each figure to the reception circuit, in the reception system of selection signal used for telephone exchange. CONSTITUTION:The signal presence memory 8 centralizingly manages the end of reception and display for each figure to each reception circuit of PB signal reception circuit 7, MF signal reception circuit 5, DP signal reception circuit 6. Further, the value of the memory 8 is scanned for a given period, and the circuit of reception end and the circuit not finished for the reception are identified with the information read out, and access is made only to the reception circuir finishing the reception. Thus, the processing ability of telephone exchanger can be increased. |
