JPS61342U - Audio alarm switching circuit - Google Patents

Audio alarm switching circuit

Info

Publication number
JPS61342U
JPS61342U JP8469684U JP8469684U JPS61342U JP S61342 U JPS61342 U JP S61342U JP 8469684 U JP8469684 U JP 8469684U JP 8469684 U JP8469684 U JP 8469684U JP S61342 U JPS61342 U JP S61342U
Authority
JP
Japan
Prior art keywords
audio
switching circuit
phase
turned
audio alarm
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
JP8469684U
Other languages
Japanese (ja)
Other versions
JPH0212758Y2 (en
Inventor
博司 安井
Original Assignee
ロ−ム株式会社
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 ロ−ム株式会社 filed Critical ロ−ム株式会社
Priority to JP8469684U priority Critical patent/JPS61342U/en
Publication of JPS61342U publication Critical patent/JPS61342U/en
Application granted granted Critical
Publication of JPH0212758Y2 publication Critical patent/JPH0212758Y2/ja
Granted legal-status Critical Current

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  • Electric Clocks (AREA)
  • Circuits Of Receivers In General (AREA)

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]

図面はこの考案の１実施例を示すオーディオ・アラーム
切替回路の接続図である。 １：移相型発振器、２：オーディオ・アラーム切替用の
スイッチ、３：ミュート回路、４：出力−回路、Ｑ１：
第１のトランジスタ、Ｑ２：第２のトランジスタ。The drawing is a connection diagram of an audio alarm switching circuit showing one embodiment of this invention. 1: Phase-shifted oscillator, 2: Audio/alarm switching switch, 3: Mute circuit, 4: Output circuit, Q1:
First transistor, Q2: second transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１のトランジスタと移相回路からなる移相型発振器と
、オーディオとアラ−ムを切り替えるスイッチと、この
スイッチがオーディオ側に投入されるとオフされ、アラ
ーム側に投入されるとオンされ、オーディオ信号をミュ
ートするとともに、前記移相型発振器の第１のトランジ
スタを付勢する第２のトランジスタと、オーディオ信号
と前記移相型発振器よりの発振信号のいずれかを導出す
る出力回路とからなるオーディオ・アラーム切替回路。A phase-shifting oscillator consisting of a first transistor and a phase-shifting circuit, a switch for switching between audio and alarm; when this switch is turned on to the audio side, it is turned off; when it is turned on to the alarm side, it is turned on; an audio circuit comprising: a second transistor that mutes the signal and energizes the first transistor of the phase-shifting oscillator; and an output circuit that derives either the audio signal or the oscillation signal from the phase-shifting oscillator.・Alarm switching circuit.
JP8469684U 1984-06-06 1984-06-06 Audio alarm switching circuit Granted JPS61342U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8469684U JPS61342U (en) 1984-06-06 1984-06-06 Audio alarm switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8469684U JPS61342U (en) 1984-06-06 1984-06-06 Audio alarm switching circuit

Publications (2)

Publication Number Publication Date
JPS61342U true JPS61342U (en) 1986-01-06
JPH0212758Y2 JPH0212758Y2 (en) 1990-04-10

Family

ID=30634422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8469684U Granted JPS61342U (en) 1984-06-06 1984-06-06 Audio alarm switching circuit

Country Status (1)

Country Link
JP (1) JPS61342U (en)

Also Published As

Publication number Publication date
JPH0212758Y2 (en) 1990-04-10

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