JPS5927656U - Additional circuit of pulse dial IC - Google Patents

Additional circuit of pulse dial IC

Info

Publication number
JPS5927656U
JPS5927656U JP12217582U JP12217582U JPS5927656U JP S5927656 U JPS5927656 U JP S5927656U JP 12217582 U JP12217582 U JP 12217582U JP 12217582 U JP12217582 U JP 12217582U JP S5927656 U JPS5927656 U JP S5927656U
Authority
JP
Japan
Prior art keywords
additional circuit
pulse dial
dial
pulse
power terminals
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
Application number
JP12217582U
Other languages
Japanese (ja)
Other versions
JPS639170Y2 (en
Inventor
賢 工藤
大山　寛
明彦 鈴木
加藤　昌昭
田辺　重一
熊谷　史人
斉藤　典夫
皆川　精司
Original Assignee
神田通信工業株式会社
日本電信電話株式会社
株式会社長谷川電機製作所
岩崎通信機株式会社
明星電気株式会社
株式会社ナカヨ通信機
日通工株式会社
株式会社大興電機製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 神田通信工業株式会社, 日本電信電話株式会社, 株式会社長谷川電機製作所, 岩崎通信機株式会社, 明星電気株式会社, 株式会社ナカヨ通信機, 日通工株式会社, 株式会社大興電機製作所 filed Critical 神田通信工業株式会社
Priority to JP12217582U priority Critical patent/JPS5927656U/en
Publication of JPS5927656U publication Critical patent/JPS5927656U/en
Application granted granted Critical
Publication of JPS639170Y2 publication Critical patent/JPS639170Y2/ja
Granted legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来方式の電話機回路図、第２図は本考案の一
実施例である電話機回路図である。 １・・・フックスイッチ、５・・・電源安定化用コンデ
ンサ、６・・・パルスダイヤルＩＣ，７・・・微分回路
、１１・・・トランジスタ、１３・・・通話回路網、１
７・・・抵抗、１８・・・記憶保持用コンデンサ。FIG. 1 is a circuit diagram of a conventional telephone, and FIG. 2 is a circuit diagram of a telephone according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Hook switch, 5...Capacitor for power supply stabilization, 6...Pulse dial IC, 7...Differentiating circuit, 11...Transistor, 13...Telephone circuit network, 1
7...Resistor, 18...Capacitor for memory retention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] “　　　　′　電話回線に送出するダイヤルパルスを発
生するパルスダイヤルＩＣの直流電源端子間に電源安定
化用コンデンサを挿入すると共に前記直流電源端子間に
記憶保持用コンデンサと抵抗とを直列接続したものを挿
入し、暫時後のラストナンバーリダイヤルを可能とした
ことを特徴とするパルスダイヤルＩＣの付加回路。"' A power supply stabilizing capacitor is inserted between the DC power terminals of the pulse dial IC that generates dial pulses to be sent to the telephone line, and a memory storage capacitor and a resistor connected in series are inserted between the DC power terminals. An additional circuit for a pulse dial IC is characterized in that the last number can be redialed after a certain period of time.
JP12217582U 1982-08-13 1982-08-13 Additional circuit of pulse dial IC Granted JPS5927656U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12217582U JPS5927656U (en) 1982-08-13 1982-08-13 Additional circuit of pulse dial IC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12217582U JPS5927656U (en) 1982-08-13 1982-08-13 Additional circuit of pulse dial IC

Publications (2)

Publication Number Publication Date
JPS5927656U true JPS5927656U (en) 1984-02-21
JPS639170Y2 JPS639170Y2 (en) 1988-03-18

Family

ID=30279358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12217582U Granted JPS5927656U (en) 1982-08-13 1982-08-13 Additional circuit of pulse dial IC

Country Status (1)

Country Link
JP (1) JPS5927656U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63541U (en) * 1986-06-20 1988-01-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63541U (en) * 1986-06-20 1988-01-05

Also Published As

Publication number Publication date
JPS639170Y2 (en) 1988-03-18

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