COMMUNICATION EQUIPMENT HAVING MULTI-PARTY TALKING FUNCTION

摘要

PURPOSE: To realize a multi-party talking among plural voice terminal equipments independently of the accommodated distance of terminal equipments. ;CONSTITUTION: Transmission voice signals a, b, c of three parties are inputted to voice line controllers 11, 12, 13 through a voice line 14 and converted into digital signals D_a, D_b, D_c and inputted to a multi-party talking device 16 through a digital channel 15 and converted into digital signals D_b+D_c, D_a+D_c, D_a+D_b and outputted to the controllers 11, 12, 13. The voice line controllers 11, 12,1 3 convert the input signal into received voice signals b+c, a+c, a+b, they are outputted to the voice line 14 and then the 3-party talking is implemented.;COPYRIGHT: (C)1993,JPO&Japio