JPS6161572B2 - - Google Patents

Info

Publication number
JPS6161572B2
JPS6161572B2 JP54150996A JP15099679A JPS6161572B2 JP S6161572 B2 JPS6161572 B2 JP S6161572B2 JP 54150996 A JP54150996 A JP 54150996A JP 15099679 A JP15099679 A JP 15099679A JP S6161572 B2 JPS6161572 B2 JP S6161572B2
Authority
JP
Japan
Prior art keywords
amplifier
microphone
level
noise
variable gain
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
JP54150996A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5673913A (en
Inventor
Yasunobu Ina
Hiroki Oonishi
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP15099679A priority Critical patent/JPS5673913A/ja
Publication of JPS5673913A publication Critical patent/JPS5673913A/ja
Publication of JPS6161572B2 publication Critical patent/JPS6161572B2/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)
JP15099679A 1979-11-20 1979-11-20 Automatic variable gain amplifier Granted JPS5673913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15099679A JPS5673913A (en) 1979-11-20 1979-11-20 Automatic variable gain amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15099679A JPS5673913A (en) 1979-11-20 1979-11-20 Automatic variable gain amplifier

Publications (2)

Publication Number Publication Date
JPS5673913A JPS5673913A (en) 1981-06-19
JPS6161572B2 true JPS6161572B2 (he) 1986-12-26

Family

ID=15508995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15099679A Granted JPS5673913A (en) 1979-11-20 1979-11-20 Automatic variable gain amplifier

Country Status (1)

Country Link
JP (1) JPS5673913A (he)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940048A (he) * 1972-08-16 1974-04-15

Also Published As

Publication number Publication date
JPS5673913A (en) 1981-06-19

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