JPS62188840U

JPS62188840U -

Info

Publication number: JPS62188840U
Application number: JP7655686U
Authority: JP
Priority date: 1986-05-20
Filing date: 1986-05-20
Publication date: 1987-12-01

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク構成図。
第２図は第一図の従来例のブロツク構成図。第３
図は第一の従来例による音声とデータの帯域分割
図。第４図は第二の従来例のブロツク構成図。第
５図は第二の従来例による音声とデータの帯域分
割図である。１……音声入出力端子、２……多重入出力端子
、３……データ入力端子、４……データ出力端子
、５……切替制御端子、１０，２０……２線−４
線変換器、３０Ａ，３０Ｂ……帯域除去濾波器、
３１Ａ，３１Ｂ……低域濾波器、４０Ａ，４０Ｂ
……帯域濾波器、４１Ａ，４１Ｂ……高域濾波器
、５０……データ変調器、６０……データ復調器
、７０Ａ，７０Ｂ……切替器、１００……結合器
。 FIG. 1 is a block diagram of an embodiment of the present invention.
FIG. 2 is a block diagram of the conventional example shown in FIG. Third
The figure is a diagram of voice and data band division according to the first conventional example. FIG. 4 is a block diagram of a second conventional example. FIG. 5 is a diagram of voice and data band division according to a second conventional example. 1...Audio input/output terminal, 2...Multiple input/output terminal, 3...Data input terminal, 4...Data output terminal, 5...Switching control terminal, 10, 20...2 wire-4
Line converter, 30A, 30B...Band elimination filter,
31A, 31B...Low pass filter, 40A, 40B
... bandpass filter, 41A, 41B ... high-pass filter, 50 ... data modulator, 60 ... data demodulator, 70A, 70B ... switch, 100 ... combiner.

Claims

[Claims for Utility Model Registration] A voice system in which a data transmitting circuit and a receiving circuit are connected to a frequency band in which a voice signal within the voice signal band is suppressed via a bandpass filter for this frequency band.
The simultaneous data transmission device is characterized in that one bandpass filter is provided for both transmission and reception, and switching means is provided for switching and connecting the bandpass filter to the output of the data transmission circuit and the input of the data reception circuit. Simultaneous voice and data transmission equipment.