KR20030086758A

KR20030086758A - Ringer for exchange

Info

Publication number: KR20030086758A
Application number: KR1020020024913A
Authority: KR
Inventors: 홍광호
Original assignee: (주) 아원
Priority date: 2002-05-07
Filing date: 2002-05-07
Publication date: 2003-11-12

Abstract

PURPOSE: An apparatus for generating a ring for the switching between wire telephones is provided to ring another telephone connected to a line in an on-hook state, or when the line is busy. CONSTITUTION: In case that the user of telephone A(300) receives a call and switches it to telephone B(400), the user of telephone A(300) pushes a switch(330). At this moment, an oscillation circuit(310) is oscillated and voltage having a specific frequency is loaded on the first to third lines. The signal loaded on the first line arrives at a telephone office exchange(200) and is filtered through the filter of the exchange(200). The signal loaded on the third line rings the buzzer(460) of telephone B(400) through a tuning/filtering/amplification part(420).

Description

Ring generator for exchange of landline phone {Ringer for exchange}

기존의 전화기는 한 회선에 두대의 전화기를 연결하여 사용할때 두 전화기 사이에 교환이 필요할때는 음성으로 직접 전화교환 여부를 알려줘야 했다. 좀더 발전된 기능이 키폰에서의 교환 시스템이지만 이것은 회선이 다른 전화기 사이에서 이루어 지는 것이다.Conventional telephones had to tell whether the telephone was switched directly by voice when the two telephones were connected to one line when the exchange was needed between the two telephones. A more advanced feature is the switching system in the keyphone, but the line is done between different phones.

링을 발생시키는 방법은 여러가지로 연구가 되어있다. 하지만 이것들은 회선이 대기상태 즉 off hook 일때 링을 울리기 위한 방법이고, 본 고안에서는 회선이 사용중일때 즉 On hook 상태에서 회선에 연결된 다른전화기를 울리게 하는 방법이다.The method of generating a ring has been studied in various ways. However, these are methods for ringing when the line is idle, i.e. off hook, and in the present invention, it is a way to ring other telephones connected to the line when the line is in use, i.e. on hook.

도1:블럭도Figure 1: Block diagram

본 발명은 기존 유선전화기에 AC전압을 통한 링발생부(350,450)을 통해 상대편 전화기사용자(100)으로 부터 전화가 걸려오면 전화국교환기(200)을 통해서 라인이 "off hook"상태이면 링신호를 보낸다. 이것은 전화기의 Ringer(350,450)에서 Buzzer(360,460)을 울리게 한다, 이때 만약 전화기A(300)에서 전화를 받았고 이 전화를 전화기B(400)에 교환해 줘야 할 경우 스위치(330)을 누르면 발진회로(310)이 발진을 일으켜 특정주파수의 전압이 회선(L2,L3,L1)에 실리게 된다. 이때 회선(L1)에 실린 신호는 전화국교환기(200)에 도착해서 전화국 교환기(200)의 필터에서 걸러지게 되고 회선(L3)로 실린 신호는 동조,필터,증폭부(420)을 거처 Buzzer(460)을 울리게 한다. 반대로 전화기B(400)에서 전화기A(300)으로 교환을 하는 경우는 스위치(430)을 누르면 발진회로(410)이 발진을 일으켜 특정주파수의 전압이 회선(L3,L2,L1)에 실리게 된다. 이때 회선(L1)에 실린 신호는 전화국교환기(200)에 도착해서 전화국 교환기(200)의 필터에서 걸러지게 되고 회선(L3)로 실린 신호는 동조,필터,증폭부(320)을 거처 Buzzer(360)을 울리게 한다.The present invention transmits a ring signal when a line is “off hook” through a telephone station switch 200 when a call is received from an opposite telephone user 100 through a ring generator 350 or 450 through an AC voltage to an existing wireline telephone. . This causes the ringer (350, 450) of the phone to ring the buzzer (360, 460). At this time, if the call is received from the phone A (300) and the phone needs to be exchanged to the phone B (400), pressing the switch (330) causes the oscillation circuit ( The oscillation 310 causes a voltage of a specific frequency to be loaded on the lines L2, L3, and L1. At this time, the signal loaded on the line L1 arrives at the telephone exchange switch 200 and is filtered by the filter of the telephone exchange switch 200. The signal loaded on the line L3 passes through the tuning, filter, and amplifier 420 through the Buzzer 460. Ring). On the contrary, in the case of switching from telephone B400 to telephone A300, pressing switch 430 causes oscillation circuit 410 to oscillate so that a voltage of a specific frequency is carried on lines L3, L2 and L1. . At this time, the signal loaded on the line L1 arrives at the telephone exchange switch 200 and is filtered by the filter of the telephone exchange switch 200. The signal loaded on the line L3 passes through the tuning, filter, and amplification unit 320. Ring).

한 회선에 두대 이상을 연결해서 사용하는 일반 가정이나 사무실에서 음성으로 직접 교환을 알리는 대신에 링을 발생시켜서 간단하게 교환을 알릴 수 있다. 이것은 먼거리에서도 효과적으로 교환을 알릴 수 있다.Instead of announcing an exchange directly by voice in a typical home or office where two or more units are connected on the same line, you can easily announce the exchange by generating a ring. This can effectively communicate exchanges over long distances.

Claims

Oscillator circuit 310 oscillates internally or externally to generate a ring or a specific signal to notify the exchange by exchanging between telephones on a general line or a specific line using two or more telephones connected to one line. The voltage on the line is carried on the line, and the signal on the line is ring generator that makes the buzzer 460 ring through the tuning, filter, and amplifier 420 of the other telephone.