JPH026450B2 - - Google Patents

Info

Publication number
JPH026450B2
JPH026450B2 JP56034295A JP3429581A JPH026450B2 JP H026450 B2 JPH026450 B2 JP H026450B2 JP 56034295 A JP56034295 A JP 56034295A JP 3429581 A JP3429581 A JP 3429581A JP H026450 B2 JPH026450 B2 JP H026450B2
Authority
JP
Japan
Prior art keywords
circuit
transistor
signal
capacitor
resistor
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 - Lifetime
Application number
JP56034295A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57148411A (en
Inventor
Kenji Fujibayashi
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.)
Olympus Corp
Original Assignee
Olympus Optical Co 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP56034295A priority Critical patent/JPS57148411A/ja
Priority to US06/352,644 priority patent/US4450413A/en
Publication of JPS57148411A publication Critical patent/JPS57148411A/ja
Publication of JPH026450B2 publication Critical patent/JPH026450B2/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
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
JP56034295A 1981-03-10 1981-03-10 Automatic level controller Granted JPS57148411A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56034295A JPS57148411A (en) 1981-03-10 1981-03-10 Automatic level controller
US06/352,644 US4450413A (en) 1981-03-10 1982-02-26 Automatic signal level control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56034295A JPS57148411A (en) 1981-03-10 1981-03-10 Automatic level controller

Publications (2)

Publication Number Publication Date
JPS57148411A JPS57148411A (en) 1982-09-13
JPH026450B2 true JPH026450B2 (enrdf_load_stackoverflow) 1990-02-09

Family

ID=12410161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56034295A Granted JPS57148411A (en) 1981-03-10 1981-03-10 Automatic level controller

Country Status (1)

Country Link
JP (1) JPS57148411A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5634296A (en) * 1979-08-29 1981-04-06 Sony Corp Electroacoustic transducer

Also Published As

Publication number Publication date
JPS57148411A (en) 1982-09-13

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