VOICE AND DATA SIMULTANEOUS COMMUNICATION SYSTEM

摘要

PURPOSE:To realize the simultaneous communication of both voices and data via an existing terminal, by transmitting/receiving the input data given from a data terminal in a base band after converting it into a packet and at the same time transmitting/receiving the voices, etc. in an information communication band with division and multiplexing of frequency. CONSTITUTION:The information given from a data terminal 50 of a composite exchanging device 100 is converted into a packet by a packet transmitting/ receiving device 30 and limited to a base band by an LPF21 of a transmission line interface 20 to be transmitted to a frequency dividing/multiplexing transmission line 10. The data information is received through the LPF21. This data information is edited as a data after the control packet is deleted by the device 30 and then transmitted to a host computer 50. While the voice given from a telephone 70 undergoes a modulation of frequency by a frequency dividing/ multiplexing transmitter/receiver 40 of the device 100 and is controlled to a single channel band by a BPF22 to be sent to the line 10.