JPS58155159U - telephone circuit - Google Patents

telephone circuit

Info

Publication number
JPS58155159U
JPS58155159U JP5066682U JP5066682U JPS58155159U JP S58155159 U JPS58155159 U JP S58155159U JP 5066682 U JP5066682 U JP 5066682U JP 5066682 U JP5066682 U JP 5066682U JP S58155159 U JPS58155159 U JP S58155159U
Authority
JP
Japan
Prior art keywords
telephone
pulse
telephone circuit
dial
pulse dial
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
JP5066682U
Other languages
Japanese (ja)
Other versions
JPS6316197Y2 (en
Inventor
皆川　精司
Original Assignee
神田通信工業株式会社
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 filed Critical 神田通信工業株式会社
Priority to JP5066682U priority Critical patent/JPS58155159U/en
Publication of JPS58155159U publication Critical patent/JPS58155159U/en
Application granted granted Critical
Publication of JPS6316197Y2 publication Critical patent/JPS6316197Y2/ja
Granted legal-status Critical Current

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

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

第１図はパルスダイヤルＩＣを使用した従来の電話機回
路である。第２図は本考案の一実施例であるパルスダイ
ヤルＩＣを備え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ＩＣ，７・・・・・・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・・・・・・パルス中継用トランジスタ、１２・
・・・・・抵抗、１２Ａ・・・・・・定電流ダイオード
、１３・・・・・・通話回路網。FIG. 1 shows a conventional telephone circuit using a pulse dial IC. FIG. 2 is a circuit diagram of a telephone equipped with a pulse dial IC, which is an embodiment of the present invention. 1... Hook switch, 6... Pulse dial IC, 7... Differential circuit, 7A...
...Resistor, 7B...Transistor, 7C...
...Resistance, 7D...Resistance, 7E...
Capacitor, 7F...Hook switch, 10.
... Resistor, IOA ... Constant current diode, 11 ... Pulse relay transistor, 12.
...Resistor, 12A ... Constant current diode, 13 ....Telephone circuit network.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] パルスダイヤルＩＣを備える電話機において、通話時、
通話回路網と並列に接続されている、パルス中継用トラ
ンジスタのベースか前記パルスダイヤルＩＣの電源供給
回路かの少なくとも一方に定電流ダイオードを挿入し、
通話時の交流損失を低減したことを特徴とする電話機回
路。When making a call on a telephone equipped with a pulse dial IC,
inserting a constant current diode into at least one of the base of the pulse relay transistor and the power supply circuit of the pulse dial IC, which are connected in parallel with the telephone communication network;
A telephone circuit characterized by reduced AC loss during calls.
JP5066682U 1982-04-09 1982-04-09 telephone circuit Granted JPS58155159U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5066682U JPS58155159U (en) 1982-04-09 1982-04-09 telephone circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5066682U JPS58155159U (en) 1982-04-09 1982-04-09 telephone circuit

Publications (2)

Publication Number Publication Date
JPS58155159U true JPS58155159U (en) 1983-10-17
JPS6316197Y2 JPS6316197Y2 (en) 1988-05-09

Family

ID=30061450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5066682U Granted JPS58155159U (en) 1982-04-09 1982-04-09 telephone circuit

Country Status (1)

Country Link
JP (1) JPS58155159U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795773B2 (en) * 1985-07-18 1995-10-11 アルカテル・エヌ・ブイ Telephone line switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795773B2 (en) * 1985-07-18 1995-10-11 アルカテル・エヌ・ブイ Telephone line switch

Also Published As

Publication number Publication date
JPS6316197Y2 (en) 1988-05-09

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