KR960039802A

KR960039802A - Simultaneous Call Prevention Phone

Info

Publication number: KR960039802A
Application number: KR1019950010248A
Authority: KR
Inventors: 김을제; 박남식
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-04-28
Filing date: 1995-04-28
Publication date: 1996-11-25

Abstract

본 발명은 동시 통화 방지용 전화기에 관한 것으로, 후크(hook) 스위치인 제2스위치(40), 전화 라인(L)과 제2스위치(40) 사이에 접속된 제1스위치(30) '톤'음을 발생하는 톤 발생부(70)와, 제2스위치(40)를 기계적으로 제어하는 통화음을 송수신하는 송수화기(60)와, 전화 라인(L)의 직류(direct current : DC) 전압 레벨을 검출하는 DC 레벨 검출부(10), DC 전압 레벨부(10)에서 검출된 DC 전압 레벨에 따른 제어 신호를 발생하는 마이컴(20), 송수신되는 전화 통화신호를 처리하는 신호 처리부(50), 동시 통화키(93)를 포함하는 입력 수단인 키 어레이(90), 기준 전압 레벨 및 전화사용 및 미 사용에 대한 데이타가 저장된 메모리(95), 전화 사용중 또는 미 사용에 대한 데이타를 디스플레이하는 디스플레이부(80)를 포함하고 구성되어, 자동적으로 동시 통화를 사전에 방지할 수 있을 뿐만 아니라, 필요시에는 동시통화를 할 수도 있게하여 사용자에게 사용상의 편리를 주도록 한 것이다.The present invention relates to a telephone for preventing simultaneous calls, the first switch 30 'tone' sound connected between the second switch 40, the telephone line (L) and the second switch 40, which is a hook (hook) switch A tone generator 70 for generating a signal, a handset 60 for transmitting and receiving a call sound mechanically controlling the second switch 40, and detecting a direct current (DC) voltage level of the telephone line (L). The DC level detector 10, the microcomputer 20 for generating a control signal according to the DC voltage level detected by the DC voltage level unit 10, a signal processor 50 for processing a telephone call signal transmitted and received, and a simultaneous call key ( A key array 90 which is an input means including an input device 93, a memory 95 in which data about reference voltage levels and telephone usage and telephone usage are stored, and a display unit 80 for displaying data regarding telephone usage or usage. It is included and configured and can automatically prevent simultaneous call in advance In addition, simultaneous calls can be made when necessary to give users convenience.

Description

Simultaneous Call Prevention Phone

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 따른 동시 통화 방지용 전화기가 접속된 공용전화기 시스템의 사시도, 제2도는 본 발명의 바람직한 실시예에 따른 동시통화 방지용 전화기의 개략적인 블럭도, 제3도는 제2도에 도시된 키 어레이의 상세도.1 is a perspective view of a public telephone system to which a simultaneous call prevention telephone according to the present invention is connected, and FIG. 2 is a schematic block diagram of a simultaneous call prevention telephone according to a preferred embodiment of the present invention, and FIG. 3 is shown in FIG. Detailed view of the key array.

Claims

A second switch 40 which is a hook switch used when a call is connected from the outside, a handset 60 which mechanically controls 'on' and 'off' of the second switch 40 and transmits and receives a voice signal; When the call is received while the second switch 60 is in the 'on' state, the tone generator 70 generates a 'tone' sound, and a signal processor that processes signals transmitted and received as electrical signals and voice signals, respectively ( A telephone for preventing simultaneous calls, which is connected and used jointly to one telephone line (L), comprising: a key array (90) for inputting a telephone number and a desired function of a counterpart; A first switch 30 connected between the telephone line L and the second switch 40; A DC level detector (10) connected to the telephone line (L) for detecting and outputting a direct current (DC) voltage level of the telephone line; A memory (95) for storing data indicating that the telephone (100) is in use or not in use and a reference voltage for comparison with a voltage detected by the DC level detector (10); The reference value stored in the memory 95 is read, the voltage detected by the DC level detector 10 is compared with the level, and a switching control signal corresponding thereto is output to the first switching unit 30. A microcomputer 20 for reading out and outputting data indicating that the signal according to the comparison value is in use or not in use from 95; And a display unit (80) for receiving and displaying data indicating that the phone output from the microcomputer (20) is in use or not in use.

2. The telephone of claim 1, wherein the key array (90) has input a simultaneous call command to allow simultaneous calls even when the telephone is in use.

The telephone of claim 1, wherein the reference voltage is 20V.

According to claim 1, wherein the microcomputer 20, When the voltage detected by the DC level detector 10 is higher than the reference voltage, the first control signal to turn on the first switch 30 to the first signal Generated by the switch (30), and when low, the simultaneous call prevention telephone set, characterized in that for generating a control signal 'off' the first switch (30).

According to claim 1, wherein the microcomputer 20, when the voltage detected by the DC level detector 10 is higher than the reference voltage reads the data corresponding to the phone is not in use from the memory 95 and the And outputting to the display unit (80) and, if it is low, reading out data corresponding to the use of the phone from the memory (95) and outputting the data to the display unit (95).

The method of claim 4, wherein the microcomputer 20 receives the first call key input signal from the key array 90 even when the voltage detected by the DC level detector 10 is lower than the reference voltage. Simultaneous call prevention telephone, characterized in that for generating a control signal 'on' the switch (30).

※ Note: The disclosure is based on the original application.