JPS6256706B2 - - Google Patents
Info
- Publication number
- JPS6256706B2 JPS6256706B2 JP4225182A JP4225182A JPS6256706B2 JP S6256706 B2 JPS6256706 B2 JP S6256706B2 JP 4225182 A JP4225182 A JP 4225182A JP 4225182 A JP4225182 A JP 4225182A JP S6256706 B2 JPS6256706 B2 JP S6256706B2
- Authority
- JP
- Japan
- Prior art keywords
- lsi
- frequency signal
- common
- common contact
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は押ボタンダイヤル式電子化電話機に係
り簡単な回路構成により、多周波信号送出時確認
音が聞こえる押ボタンダイヤル式電子化電話機に
関する。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a push-button dial computerized telephone, and relates to a push-button dial computerized telephone that has a simple circuit configuration and allows a confirmation sound to be heard when a multi-frequency signal is sent.
(b) 従来技術と問題点
従来の押ボタン式電子化電話機では、多周波信
号送出の確認音を聞くために、ミユート
（mute）回路を持ち、多周波信号送出時は、送話
器及び受話器の増巾器の利得を下げ、送話器より
の雑音が加入者線路に送出されないよう、又受話
器には耳で聞き易いようにしている。(b) Prior Art and Problems Conventional push-button computerized telephones have a mute circuit in order to hear the confirmation sound when transmitting multi-frequency signals, and when transmitting multi-frequency signals, the transmitter and receiver The gain of the amplifier is lowered to prevent noise from the transmitter from being transmitted to the subscriber's line, and to make it easier for the receiver to hear.
しかし、このミユート回路は複雑で高価となる
欠点を持つ。 However, this mute circuit has the drawback of being complicated and expensive.
(c) 発明の目的
本発明の目的は上記の欠点をなくし、簡単で安
価な回路により、多周波信号送出の確認音を聞く
ことが出来る押ボタンダイヤル式電子化電話機の
提供にある。(c) Object of the Invention The object of the present invention is to eliminate the above-mentioned drawbacks and to provide a push-button dial type computerized telephone that allows a user to hear a confirmation tone for transmitting a multi-frequency signal using a simple and inexpensive circuit.
(d) 発明の構成
本発明は上記の目的を達成するために、多周波
信号用LSIと通話系LSIと押ボタンダイヤル等に
より構成される押ボタンダイヤル式電子化電話機
において、該通話系LSIとして、ダイヤルパルス
式の通話系LSIを使用し、該押ボタンダイヤルと
しては２個の第１、第２の共通接点を有するもの
を使用し、該第１の共通接点の共通端子側は、加
入者線路側の正電位側に接続し、該第１の共通接
点の切替接点の一方は該通話系LSIの入出力端子
の１方に接続し、他方は、該多周波信号LSIの出
力端子の一方及び抵抗を介して受話器の一方に接
続し、該第２の共通接点の、共通端子側は、コン
デンサを介して該受話器の他方及び該多周波信号
用LSIの出力の他方に接続し、切替接点側は該加
入者線路の負電位側及び該通話系LSIの入出力端
子の他方に接続し、多周波信号送出時には、該第
１の共通接点は、該多周波信号を加入者線路に送
出すると共に該抵抗及び該コンデンサを介して該
受話器に送出する側に切替わり、該第２の共通接
点は閉となり、通話時は該第一の共通接点は、該
通話系LSIの入出力端子が加入者線路に接続され
る側に、又第２の共通接点の切替接点側は開とな
ることを特徴とする押ボタンダイヤル式電子化電
話機である。(d) Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a push-button dial type computerized telephone consisting of a multi-frequency signal LSI, a communication LSI, a push-button dial, etc. as the communication LSI. , a dial pulse type telephone LSI is used, and the pushbutton dial has two first and second common contacts, and the common terminal side of the first common contact is connected to the subscriber. It is connected to the positive potential side of the line side, one of the switching contacts of the first common contact is connected to one of the input/output terminals of the communication system LSI, and the other is connected to one of the output terminals of the multifrequency signal LSI. and one side of the handset via a resistor, and the common terminal side of the second common contact is connected to the other side of the handset and the other output of the multi-frequency signal LSI through a capacitor, and a switching contact. The first common contact is connected to the negative potential side of the subscriber line and the other input/output terminal of the communication system LSI, and when sending out a multifrequency signal, the first common contact sends out the multifrequency signal to the subscriber line. At the same time, the signal is switched to the side that transmits data to the handset via the resistor and the capacitor, the second common contact is closed, and during a call, the first common contact is connected to the input/output terminal of the call system LSI. This is a push-button dial type computerized telephone characterized in that the switching contact side of the second common contact is open on the side connected to the public line and on the switching contact side of the second common contact.
(e) 発明の実施例
以下本発明の１実施例につき図に従つて説明す
る。(e) Embodiment of the invention An embodiment of the invention will be described below with reference to the drawings.
図は本発明の実施例の確認音を聞く回路を中心
とした押ボタンダイヤル式電子化電話機のブロツ
ク図である。 The figure is a block diagram of a push-button dial type computerized telephone centering on a circuit for listening to a confirmation tone according to an embodiment of the present invention.
図中１は押ボタンダイヤル、２は多周波信号用
LSI、３は通話系LSI、Ｔは送話器、Ｒは受話
器、CS１，CS２は押ボタンダイヤルの中に含ま
れている共通接点で、押ボタンダイヤルを押して
いる間CS１はＣ，Ｂ間が接続され、CB２は閉と
なるもので、このような共通接点を持つた押ボタ
ンダイヤルは市販品であり、尚Ｃ及びC1は共通
端子、Ｍ，M1，Ｂは切替接点側である。HSはフ
ツクスイツチ、RCはブリツチ形整流器で加入者
線路側の電源電圧の如何にかかわらず電話機回路
の一方が正になるようにしているものである。
ZDはツエナーダイオードでサージ吸収用のもの
である。R1は抵抗、Ｃはコンデンサである。 In the figure, 1 is a push button dial, and 2 is for multi-frequency signals.
LSI, 3 is a telephone LSI, T is a transmitter, R is a receiver, CS1 and CS2 are common contacts included in the pushbutton dial, and while the pushbutton dial is pressed, CS1 is a contact between C and B. The pushbutton dial having such a common contact is a commercially available product, and C and C1 are common terminals, and M, M1 , and B are switching contacts. HS is a foot switch, and RC is a bridge type rectifier, which ensures that one side of the telephone circuit is positive regardless of the power supply voltage on the subscriber line side.
ZD is a Zener diode for surge absorption. R 1 is a resistor and C is a capacitor.
ダイヤル信号を送出する場合、電話機をオンフ
ツクすると、フツクスイツチHSは閉となり、交
換機より直流電源が供給される。次に押ボタンダ
イヤル１の押ボタンを押すと、押している間は、
共通接点CS１はＣとＢ点間が接続され、CS２は
C1とM1が閉となり、多周波信号は、多周波信号
用LSI２の入出力端子より加入者線路に送出され
ると共に、抵抗R1コンデンサＣを介して受話器
Ｒにも送られ、確認音として受話器Ｒにて聞くこ
とが出来る。抵抗R1は受話器Ｒへの信号音を少
さくして聞き易いよう調整する抵抗である。 When sending a dial signal, when the telephone is turned on, the switch HS is closed and DC power is supplied from the exchange. Next, when you press the push button on push button dial 1, while it is pressed,
Common contact CS1 is connected between points C and B, and CS2 is
C 1 and M 1 are closed, and the multi-frequency signal is sent to the subscriber line from the input/output terminal of LSI 2 for multi-frequency signals, and is also sent to the receiver R via the resistor R 1 and capacitor C, and a confirmation tone is output. can be heard on receiver R. Resistor R1 is a resistor that is used to reduce the signal tone to the receiver R so that it can be easily heard.
この時は通話系LSI３は加入者線路とは切り離
されているので送話器Ｔからの雑音を加入者線路
に送ることはない。押ボタンを放すと共通接点
CS１はＣとＭ間が接続され、又SC２はC1とM1が
開となる。即ち、通話時は通話系LSI３は加入者
線路に接続され、多周波信号用LSI２は接続され
ていない。又この時は多周波信号用LSI２のイン
ピーダンスは高いので受話器Ｒに並列に抵抗Ｒコ
ンデンサＣを介して並列に接続されていても感度
を低下さすことはない。 At this time, since the communication system LSI 3 is separated from the subscriber line, noise from the transmitter T is not sent to the subscriber line. When the pushbutton is released, the common contact
In CS1, C and M are connected, and in SC2, C1 and M1 are open. That is, during a call, the communication system LSI 3 is connected to the subscriber line, and the multi-frequency signal LSI 2 is not connected. Also, at this time, the impedance of the multi-frequency signal LSI 2 is high, so even if it is connected in parallel to the receiver R via the resistor R and capacitor C, the sensitivity will not be reduced.
又多周波信号用LSI２及び通話系LSI３は同時
に加入者線路に接続されていることはないので電
話機としての感度を落とすこともない。 Furthermore, since the multi-frequency signal LSI 2 and the communication system LSI 3 are not connected to the subscriber line at the same time, the sensitivity of the telephone set is not reduced.
従つて複雑高価なミユート回路を必要としな
い。 Therefore, a complicated and expensive mute circuit is not required.
(f) 発明の効果
以上詳細に説明した如く、本発明によれば、ミ
ユート回路を用いなくとも、簡単な回路で確認音
を聞くことが出来るので押ボタンダイヤル式電子
化電話機が安価となる効果がある。(f) Effects of the Invention As explained in detail above, according to the present invention, the confirmation sound can be heard with a simple circuit without using a miute circuit, so the push-button dial electronic telephone set can be made inexpensive. There is.
図は本発明の実施例の確認音を聞く回路を中心
とした押ボタンダイヤル式電子化電話機のブロツ
ク図である。
図中１は押ボタンダイヤル、２は多周波信号用
LSI、３は通話系LSI、Ｔは送話器、Ｒは受話
器、CS１，CS２は共通接点、HSはフツクスイ
ツチ、RCはブリツチ形整流器、ZDはツエナーダ
イオード、R1は抵抗、Ｃはコンデンサ、共通接
点CS１，CS２のＣ，C1は共通端子、Ｂ，Ｍ，M1
は切替接点側を示す。
The figure is a block diagram of a push-button dial type computerized telephone centering on a circuit for listening to a confirmation tone according to an embodiment of the present invention. In the figure, 1 is a push button dial, and 2 is for multi-frequency signals.
LSI, 3 is communication system LSI, T is transmitter, R is receiver, CS1, CS2 are common contacts, HS is hook switch, RC is bridge type rectifier, ZD is Zener diode, R1 is resistor, C is capacitor, common C and C 1 of contacts CS1 and CS2 are common terminals, B, M, M 1
indicates the switching contact side.
Claims (1)
イヤル等により構成される押ボタンダイヤル式電
子化電話機において、該通話系LSIとして、ダイ
ヤルパルス式の通話系LSIを使用し、該押ボタン
ダイヤルとしては２個の第１、第２の共通接点を
有するものを使用し、該第１の共通接点の共通端
子側は、加入者線路側の正電位側に接続し、該第
１の共通接点の切替接点の一方は該通話系LSIの
入出力端子の１方に接続し、他方は、該多周波信
号用LSIの出力端子の一方及び抵抗を介して受話
器の一方に接続し、該第２の共通接点の、共通端
子側は、コンデンサを介して受話器の他方及び該
多周波信号用LSIの出力の他方に接続し、切替接
点側は該加入者線路の負電位側及び該通話系LSI
の入出力端子の他方に接続し、多周波信号送出時
には、該第１の共通接点は、該多周波信号を加入
者線路に送出すると共に該抵抗及び該コンデンサ
を介して該受話器に送出する側に切替わるととも
に該第２の共通接点は閉となり、通話時は該第一
の共通接点は、該通話系LSIの入出力端子が加入
者線路に接続される側に切替わるとともに第２の
共通接点の切替接点側は開となることを特徴とす
る押ボタンダイヤル式電子化電話機。1. In a push-button dial electronic telephone set consisting of a multi-frequency signal LSI, a communication LSI, a push-button dial, etc., a dial pulse-type communication LSI is used as the communication LSI, and as the push-button dial. uses a device having two first and second common contacts, the common terminal side of the first common contact is connected to the positive potential side of the subscriber line, and the first common contact is connected to the positive potential side of the subscriber line. One of the switching contacts is connected to one of the input/output terminals of the communication LSI, the other is connected to one of the output terminals of the multi-frequency signal LSI and one of the receivers via a resistor, and the second The common terminal side of the common contact is connected to the other side of the handset and the other output of the multi-frequency signal LSI via a capacitor, and the switching contact side is connected to the negative potential side of the subscriber line and the communication LSI.
When transmitting a multi-frequency signal, the first common contact is connected to the other input/output terminal of the terminal, and when transmitting a multi-frequency signal, the first common contact is connected to the side that transmits the multi-frequency signal to the subscriber line and also transmits the multi-frequency signal to the receiver via the resistor and the capacitor. , the second common contact is closed, and during a call, the first common contact is switched to the side where the input/output terminal of the communication LSI is connected to the subscriber line, and the second common contact is closed. A push-button dial type computerized telephone characterized in that the switching contact side of the contacts is open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4225182A JPS58159049A (en) | 1982-03-17 | 1982-03-17 | ?push-button dial system electronized telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4225182A JPS58159049A (en) | 1982-03-17 | 1982-03-17 | ?push-button dial system electronized telephone set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58159049A JPS58159049A (en) | 1983-09-21 |
| JPS6256706B2 true JPS6256706B2 (en) | 1987-11-26 |
Family
ID=12630801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4225182A Granted JPS58159049A (en) | 1982-03-17 | 1982-03-17 | ?push-button dial system electronized telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58159049A (en) |
-
1982
- 1982-03-17 JP JP4225182A patent/JPS58159049A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58159049A (en) | 1983-09-21 |
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