JPS55138911A - Excessive input signal preventive system - Google Patents

Excessive input signal preventive system

Info

Publication number
JPS55138911A
JPS55138911A JP4597479A JP4597479A JPS55138911A JP S55138911 A JPS55138911 A JP S55138911A JP 4597479 A JP4597479 A JP 4597479A JP 4597479 A JP4597479 A JP 4597479A JP S55138911 A JPS55138911 A JP S55138911A
Authority
JP
Japan
Prior art keywords
input
signal
circuit
switch
generated
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
JP4597479A
Other languages
English (en)
Japanese (ja)
Other versions
JPS625363B2 (enExample
Inventor
Kunikatsu Yoshii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4597479A priority Critical patent/JPS55138911A/ja
Publication of JPS55138911A publication Critical patent/JPS55138911A/ja
Publication of JPS625363B2 publication Critical patent/JPS625363B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP4597479A 1979-04-17 1979-04-17 Excessive input signal preventive system Granted JPS55138911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4597479A JPS55138911A (en) 1979-04-17 1979-04-17 Excessive input signal preventive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4597479A JPS55138911A (en) 1979-04-17 1979-04-17 Excessive input signal preventive system

Publications (2)

Publication Number Publication Date
JPS55138911A true JPS55138911A (en) 1980-10-30
JPS625363B2 JPS625363B2 (enExample) 1987-02-04

Family

ID=12734177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4597479A Granted JPS55138911A (en) 1979-04-17 1979-04-17 Excessive input signal preventive system

Country Status (1)

Country Link
JP (1) JPS55138911A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090918U (ja) * 1983-11-26 1985-06-21 松下電器産業株式会社 ボタン電話装置の着信音・呼出音増幅用の音声増幅装置
JPS6129523U (ja) * 1984-07-26 1986-02-22 パイオニア株式会社 音響伝送系のミユ−テイング回路
JPS61193507A (ja) * 1985-02-21 1986-08-28 Fujitsu Denso Ltd 電力増幅回路

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63246293A (ja) * 1987-03-31 1988-10-13 三菱電機株式会社 半導体装置カ−ドの接続装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090918U (ja) * 1983-11-26 1985-06-21 松下電器産業株式会社 ボタン電話装置の着信音・呼出音増幅用の音声増幅装置
JPS6129523U (ja) * 1984-07-26 1986-02-22 パイオニア株式会社 音響伝送系のミユ−テイング回路
JPS61193507A (ja) * 1985-02-21 1986-08-28 Fujitsu Denso Ltd 電力増幅回路

Also Published As

Publication number Publication date
JPS625363B2 (enExample) 1987-02-04

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