JPS58155158U - Additional circuit of pulse dial IC - Google Patents
Additional circuit of pulse dial ICInfo
- Publication number
- JPS58155158U JPS58155158U JP5066582U JP5066582U JPS58155158U JP S58155158 U JPS58155158 U JP S58155158U JP 5066582 U JP5066582 U JP 5066582U JP 5066582 U JP5066582 U JP 5066582U JP S58155158 U JPS58155158 U JP S58155158U
- Authority
- JP
- Japan
- Prior art keywords
- pulse dial
- additional circuit
- dial
- pulse
- power supply
- 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のパルスダイヤルＩＣの付加回路を用いた
電話機回路図である。第２図は本考案の１実施例である
パルスダイヤルＩＣの付加回路を用いた電話機回路図で
ある。
１・・・・・・フックスイッチ、６・・・・・・パルス
ダイヤルＩＣ１７・・・・・・微分回路、７Ａ・・・・
・・抵抗、７Ｂ・・・・・・トランジスタ、７Ｃ・・・
・・・抵抗、７Ｄ・・・・・・抵抗、７Ｅ・・・・・・
コンデンサ、７Ｆ・・・・・・フックスイッチ、１０・
・・・・・抵抗、ＩＯＡ・・・・・・定電流ダイオード
、１１・・・・・・トランジスタ、１２・・・・・・抵
抗、１２Ａ・・・・・・定電流ダイオード、１３・・・
・・・通話回路網。FIG. 1 is a circuit diagram of a telephone using an additional circuit of a conventional pulse dial IC. FIG. 2 is a circuit diagram of a telephone using an additional circuit of a pulse dial IC, which is an embodiment of the present invention. 1... Hook switch, 6... Pulse dial IC17... Differential circuit, 7A...
...Resistor, 7B...Transistor, 7C...
...Resistance, 7D...Resistance, 7E...
Capacitor, 7F...Hook switch, 10.
...Resistor, IOA... Constant current diode, 11... Transistor, 12... Resistor, 12A... Constant current diode, 13...・
...Telephone network.
Claims (1)
イヤルＩＣの正の電源側とリセット端子との間に挿入さ
れた抵抗を備え、前記リセット端子とパルスダイヤルＩ
Ｃの負の電源側との間にトランジスタと、電話機のフッ
クボタンの動作と連動するスイッチ機構とを直列に接続
にしたものを挿入し、前記トランジスタを制御する時定
数回路ヲ備工てパルスダイヤルＩＣのリセット動作を行
うことを特徴としたパルスダイヤルＩＣの付加回路。A telephone equipped with a pulse dial IC, comprising a resistor inserted between the positive power supply side of the pulse dial IC and a reset terminal, and a resistor inserted between the reset terminal and the pulse dial IC.
A pulse dial is created by inserting a transistor connected in series between the negative power supply side of C and a switch mechanism that is linked to the operation of the telephone's hook button, and preparing a time constant circuit to control the transistor. An additional circuit for a pulse dial IC characterized by performing an IC reset operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5066582U JPS58155158U (en) | 1982-04-09 | 1982-04-09 | Additional circuit of pulse dial IC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5066582U JPS58155158U (en) | 1982-04-09 | 1982-04-09 | Additional circuit of pulse dial IC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58155158U true JPS58155158U (en) | 1983-10-17 |
| JPS6316196Y2 JPS6316196Y2 (en) | 1988-05-09 |
Family
ID=30061449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5066582U Granted JPS58155158U (en) | 1982-04-09 | 1982-04-09 | Additional circuit of pulse dial IC |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155158U (en) |
-
1982
- 1982-04-09 JP JP5066582U patent/JPS58155158U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6316196Y2 (en) | 1988-05-09 |
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