| 摘要 |
PURPOSE:To increase the amount of information transmission, by performing the information transmission through the use of computer lines normally and also by the information transmission using the lines assigned to telephone and telex which are not always in use, if they are not used. CONSTITUTION:Communication lines (transmission lines) 21 connect the multiplex communication control units 41 and the information processor 11 for computer system and remote units is connected to each control unit 41 via the input and output units 12, 13. Further, one control unit 41 receives the signals i1-i3 from the nonstationary use units (telephone) 1 and (teletypewriter) 2 and exclusive use emergency transmitter 3 and the output signals i4, i5 from the input and output units 12, 13, and the information is transmitted to the opposing party with the modulation processing by means of frequency or time division. Further, the opposing control unit 41 receiving this information transmits it to the units 1, 2 and the units 12, 13 with demodulation conversely. Further, the priority judgement unit 31 inputs the information S1, S2 for the units 1, 2 less in the usage frequency and the increase in the amount of information to be transmtted is achieved by using the lines not in use. |
