KR200142808Y1 - Telephone connection state convincing apparatus - Google Patents

Telephone connection state convincing apparatus Download PDF

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Publication number
KR200142808Y1
KR200142808Y1 KR2019920028066U KR920028066U KR200142808Y1 KR 200142808 Y1 KR200142808 Y1 KR 200142808Y1 KR 2019920028066 U KR2019920028066 U KR 2019920028066U KR 920028066 U KR920028066 U KR 920028066U KR 200142808 Y1 KR200142808 Y1 KR 200142808Y1
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KR
South Korea
Prior art keywords
telephone
connection state
output
voltage
unit
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KR2019920028066U
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Korean (ko)
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KR940018294U (en
Inventor
백현섭
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구자홍
엘지전자주식회사
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Priority to KR2019920028066U priority Critical patent/KR200142808Y1/en
Publication of KR940018294U publication Critical patent/KR940018294U/en
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Publication of KR200142808Y1 publication Critical patent/KR200142808Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

본 고안은 일반전화기 연결상태를 확인하는 방법에 관한 것으로 시스템 설치보수를 용이하게 하고 시스템 프로그램의 능률을 높이고 특히 전화기 도난 방지에 도움이 되도록 한 것이다.The present invention relates to a method for checking the connection status of a general telephone, which facilitates the system installation and maintenance, improves the efficiency of the system program, and especially helps to prevent theft of the telephone.

본 발생기의 출력을 분압기를 통하여 부하인 전화기 링거회로로 입력시켜 부하에 의한 전압강하를 레벨 검출기를 통하여 검출하고 전화기 연결상태를 다른 전화기로 알려주는 일반 전화기 연결상태 검출회로.A general telephone connection state detection circuit that inputs the output of the generator to a telephone ringer circuit serving as a load through a voltage divider to detect a voltage drop caused by the load through a level detector and inform the other telephone of the telephone connection state.

Description

전화기 연결상태 확인장치Telephone connection status check device

제1도는 본 고안 전화기 연결상태 확인장치의 블럭 구성도.1 is a block diagram of a device for checking the state of connection of the present invention.

제2도는 제1도의 개략 블럭구성도.2 is a schematic block diagram of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

5 : 톤 발생부 6 : 분압부5: tone generating unit 6: partial pressure unit

7 : 레벨검출부 8 : 버퍼7: level detector 8: buffer

본 고안은 전화기 연결상태 확인 장치에 관한 것으로 특히 전화기의 연결상태에 따라 변하는 전압변동분을 검출하여 전화기의 연결상태를 확인하도록하는 전화기 연결상태 확인 장치에 관한 것이다.The present invention relates to a device for checking the connection state of the telephone, and more particularly, to a device for confirming the connection state of the telephone by detecting a voltage change that varies according to the connection state of the telephone.

종래에는 시스템 설치나 보수시에 전화기의 연결상태를 일일이 확인해야 하는 불편한 점이 있었다.Conventionally, there was an inconvenience of having to check the connection state of the telephone at the time of system installation or maintenance.

따라서 본 고안 목적은 전화기의 연결상태에 따라 변하는 전압 변동분을 검출하여 전화기의 연결상태를 확인하도록하는 전화기 연결상태 확인 장치를 제공함에 있다.Accordingly, an object of the present invention is to provide a device for checking the connection state of the phone to detect the voltage change that changes according to the connection state of the phone to check the connection state of the phone.

이와 같은 본 고안의 목적은 톤 발생부와, 톤 발생부로 부터 출력된 전압을 분압하여 출력하는 분압부와, 분압부로 부터 출력된 전압의 레벨을 검출하는 레벨 검출부와, 레벨 검출부로부터 출력된 신호를 버퍼링하는 버퍼를 구성함으로써 달성되어지는 것으로 이하 본 고안을 첨부한 도면을 참조해 상설하면 다음과 같다.The object of the present invention is to provide a tone generator, a voltage divider for dividing and outputting the voltage output from the tone generator, a level detector for detecting the level of the voltage output from the voltage divider, and a signal output from the level detector. The present invention is accomplished by configuring a buffer to be buffered and will be described below with reference to the accompanying drawings.

제1도는 본 고안 전화기 연결상태 확인 장치로서 이에 도시한 바와같이 국선을 전화기(1)와 연결하는 인터페이스부(2)와, 외부 제어에 의해 스위칭되는 제1, 제2아날로그 스위치(3)(4)와, 상기 제2아날로그 스위치(4)를 통한 신호에 의해 톤을 발생하는 톤 발생부(5)와, 상기 톤발생부(5)로 부터 출력된 전압을 분압시켜 출력하는 분압부(6)와, 상기 분압부(6)로 부터 출력된 전압의 레벨을 검출하는 레벨 검출부(7)와, 상기 레벨 검출부(7)로 부터 출력된 신호를 중앙처리 장치로부터 출력된 제어신호(CPC)에 의해 버퍼링한후 데이타버스(DTB)로 출력하는 버퍼부(8)로 구성한다.1 is an apparatus for checking a telephone connection state of the present invention, as shown therein, an interface unit 2 for connecting a trunk line with a telephone 1, and first and second analog switches 3 and 4 that are switched by external control. ), A tone generator 5 for generating a tone by a signal through the second analog switch 4, and a voltage divider 6 for dividing and outputting a voltage output from the tone generator 5. And a level detector 7 for detecting the level of the voltage output from the voltage divider 6, and a signal output from the level detector 7 by a control signal CPC output from the central processing unit. It consists of a buffer part 8 which outputs to a data bus DTB after buffering.

이와같이 구성한 본 고안의 동작 및 효과를 첨부한 제1도 및 제2도를 참조해 상설하면 전화기(1)(1')가 연결되었을 경우에는 톤발생부(5)로 부터 출력된 톤신호의 전압은 분압부(6)를 통해 분압된후 전화기(1)(1') 및 레벨 검출부(7)에 인가된다.Referring to FIGS. 1 and 2 to which the operation and effects of the present invention thus constructed are attached, the voltage of the tone signal output from the tone generator 5 when the telephones 1 and 1 'are connected. Is divided by the voltage divider 6 and then applied to the telephone 1 (1 ') and the level detector 7.

이에따라 레벨 검출부(7)는 톤발생부(5)로 부터 출력된 전압에서 분압부(6)를 통해 전압강하된 전압을 감한 값을 검출하여 버퍼부(8)에 인가한다.Accordingly, the level detector 7 detects a value obtained by subtracting the voltage dropped from the voltage output from the tone generator 5 from the voltage divider 6 and applies it to the buffer unit 8.

이 검출된 값은 버퍼(8)를 통해 중앙처리장치로부터 출력된 제어신호에 따라 버퍼링된 후 데이타버스(DTB)로 송출된다.The detected value is buffered in accordance with the control signal output from the central processing unit through the buffer 8 and then sent to the data bus DTB.

한편 전화기(1)(1')가 연결이 되지 않았을 경우에는 톤발생부(5)로 부터 출력된 전압은 레벨 검출부(7)로 바로 인가된다.On the other hand, when the telephones 1 and 1 'are not connected, the voltage output from the tone generator 5 is directly applied to the level detector 7.

이에따라 레벨 검출부(7)는 톤발생부(5)로 부터 출력된 전압을 검출하고 이 검출된 전압은 중앙처리장치로 부터 출력된 제어신호(CPC)에 따라 버퍼(8)를 통해 버퍼링된 후 데이타버스(DTB)로 송출된다.Accordingly, the level detector 7 detects the voltage output from the tone generator 5 and the detected voltage is buffered through the buffer 8 according to the control signal CPC output from the central processing unit, and then the data. It is sent out on the bus DTB.

이상에서 상술한 본 고안은 시스템 설치나 보수시에 전화기의 연결상태를 확인함으로써 도난 방지 기능을 수행할 수 있는 효과와 아울러 전화기로 경보음을 송출할 수 있는 효과가 있다.The present invention as described above has the effect of performing the anti-theft function by checking the connection state of the phone during system installation or maintenance, as well as the effect of transmitting an alarm sound to the phone.

Claims (1)

국선을 전화기(1)와 연결하는 인터페이스부(2)와, 외부제어에 의해 스위칭되는 제1, 제2아날로그 스위치(3)(4)와, 상기 제2아날로그 스위치(4)를 통한 신호에 의해 톤을 발생하는 톤 발생부(5)와, 상기 톤발생부(5)로 부터 출력된 전압을 분압시켜 출력하는 분압부(6)와, 상기 분압부(6)로 부터 출력된 전압의 레벨을 검출하는 레벨 검출부(7)와, 상기 레벨 검출부(7)로 부터 출력된 신호를 중앙처리 장치로부터 출력된 제어신호(CPC)에 의해 버퍼링한 후 데이터버스(DTB)로 출력하는 버퍼부(8)를 포함하여 구성된 것을 특징으로 하는 전화기 연결 상태 확인 장치.By a signal through the interface unit 2 connecting the trunk line with the telephone 1, the first and second analog switches 3 and 4 switched by external control, and the second analog switch 4; A tone generating unit 5 for generating a tone, a voltage dividing unit 6 for dividing and outputting a voltage output from the tone generating unit 5, and a level of a voltage output from the voltage dividing unit 6; A level detecting section 7 for detecting and a buffer section 8 for buffering the signal output from the level detecting section 7 by the control signal CPC output from the central processing unit and outputting the buffered data to the data bus DTB. Device for checking the phone connection status, characterized in that configured to include.
KR2019920028066U 1992-12-30 1992-12-30 Telephone connection state convincing apparatus KR200142808Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019920028066U KR200142808Y1 (en) 1992-12-30 1992-12-30 Telephone connection state convincing apparatus

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Application Number Priority Date Filing Date Title
KR2019920028066U KR200142808Y1 (en) 1992-12-30 1992-12-30 Telephone connection state convincing apparatus

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KR940018294U KR940018294U (en) 1994-07-30
KR200142808Y1 true KR200142808Y1 (en) 1999-06-01

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KR20030035031A (en) * 2001-10-29 2003-05-09 삼성전자주식회사 Apparatus and method for detecting the phone's connection for analog subscriber card

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