JPS648925B2 - - Google Patents

Info

Publication number
JPS648925B2
JPS648925B2 JP14644680A JP14644680A JPS648925B2 JP S648925 B2 JPS648925 B2 JP S648925B2 JP 14644680 A JP14644680 A JP 14644680A JP 14644680 A JP14644680 A JP 14644680A JP S648925 B2 JPS648925 B2 JP S648925B2
Authority
JP
Japan
Prior art keywords
signal
time
circuit
input
output
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.)
Expired
Application number
JP14644680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5769915A (en
Inventor
Kenzo Akagiri
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14644680A priority Critical patent/JPS5769915A/ja
Publication of JPS5769915A publication Critical patent/JPS5769915A/ja
Publication of JPS648925B2 publication Critical patent/JPS648925B2/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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP14644680A 1980-10-20 1980-10-20 Automatic gain control circuit Granted JPS5769915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14644680A JPS5769915A (en) 1980-10-20 1980-10-20 Automatic gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14644680A JPS5769915A (en) 1980-10-20 1980-10-20 Automatic gain control circuit

Publications (2)

Publication Number Publication Date
JPS5769915A JPS5769915A (en) 1982-04-30
JPS648925B2 true JPS648925B2 (enExample) 1989-02-15

Family

ID=15407824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14644680A Granted JPS5769915A (en) 1980-10-20 1980-10-20 Automatic gain control circuit

Country Status (1)

Country Link
JP (1) JPS5769915A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176315A (ja) * 1984-02-21 1985-09-10 Rohm Co Ltd 自動利得調整回路
JP2009171092A (ja) * 2008-01-15 2009-07-30 Audio Technica Corp 音響装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250500B2 (enExample) * 1972-07-12 1977-12-24

Also Published As

Publication number Publication date
JPS5769915A (en) 1982-04-30

Similar Documents

Publication Publication Date Title
US4466119A (en) Audio loudness control system
US4490585A (en) Hearing aid
JP3295443B2 (ja) オーディオ装置における信号処理回路
US4306115A (en) Automatic volume control system
JPH0317491Y2 (enExample)
US4322579A (en) Sound reproduction in a space with an independent sound source
US4479237A (en) Automatic sound level control system for audio equipment
US4694498A (en) Automatic sound field correcting system
JPH02235260A (ja) ボイスチェンジ回路
EP0163545A2 (en) Automatic gain and frequency characteristic control unit in audio device
US4471318A (en) Circuit for noise reduction particularly useful with signal recording/reproducing apparatus
US4337445A (en) Compander circuit which produces variable pre-emphasis and de-emphasis
JPS648925B2 (enExample)
US4208634A (en) Circuit for suppressing noise caused by scratches on a phonograph record
US4667167A (en) Circuit for automatic gain control
EP0512376B1 (en) Plural time constant signal control
JPS63204908A (ja) 増幅装置
CA1199080A (en) Audio loudness control system
JP3024502B2 (ja) オーディオ装置
JPH0343804B2 (enExample)
JP3247526B2 (ja) オーディオ信号のレベル調整装置
JP2611233B2 (ja) 振幅圧縮伸長回路
JPH0775103B2 (ja) ノイズリダクシヨン回路
JP2733983B2 (ja) 記録信号レベル設定回路
JP3162868B2 (ja) 記録再生装置のノイズ低減回路