JPS6367199B2 - - Google Patents

Info

Publication number
JPS6367199B2
JPS6367199B2 JP56170833A JP17083381A JPS6367199B2 JP S6367199 B2 JPS6367199 B2 JP S6367199B2 JP 56170833 A JP56170833 A JP 56170833A JP 17083381 A JP17083381 A JP 17083381A JP S6367199 B2 JPS6367199 B2 JP S6367199B2
Authority
JP
Japan
Prior art keywords
amplifier
circuit
level
audio
noise
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
JP56170833A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5873217A (ja
Inventor
Kunio Akiba
Koji Ukiana
Nobuhiko Kadokawa
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.)
DENSHI KEISANKI KIPPON GIJUTSU KENKYU KUMIAI
Original Assignee
DENSHI KEISANKI KIPPON GIJUTSU KENKYU KUMIAI
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 DENSHI KEISANKI KIPPON GIJUTSU KENKYU KUMIAI filed Critical DENSHI KEISANKI KIPPON GIJUTSU KENKYU KUMIAI
Priority to JP56170833A priority Critical patent/JPS5873217A/ja
Publication of JPS5873217A publication Critical patent/JPS5873217A/ja
Publication of JPS6367199B2 publication Critical patent/JPS6367199B2/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
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP56170833A 1981-10-27 1981-10-27 信号入力装置 Granted JPS5873217A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56170833A JPS5873217A (ja) 1981-10-27 1981-10-27 信号入力装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56170833A JPS5873217A (ja) 1981-10-27 1981-10-27 信号入力装置

Publications (2)

Publication Number Publication Date
JPS5873217A JPS5873217A (ja) 1983-05-02
JPS6367199B2 true JPS6367199B2 (en]) 1988-12-23

Family

ID=15912172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56170833A Granted JPS5873217A (ja) 1981-10-27 1981-10-27 信号入力装置

Country Status (1)

Country Link
JP (1) JPS5873217A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04347293A (ja) * 1991-05-23 1992-12-02 Yoshida Kogyo Kk <Ykk> シャッターの障害物感知装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0632001B2 (ja) * 1985-01-25 1994-04-27 ロ−ム株式会社 音声識別回路
AU2001253515A1 (en) * 2000-04-14 2001-10-30 Harman International Industries Incorporated Method and apparatus for dynamic sound optimization

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5162604A (en) * 1974-11-28 1976-05-31 Fujitsu Ltd Onseinyuryokusochi
JPS52120534U (en]) * 1976-03-03 1977-09-13
JPS5650241Y2 (en]) * 1977-09-01 1981-11-25
JPS5491007A (en) * 1977-12-28 1979-07-19 Nec Corp Audio recognition unit
JPS57158700A (en) * 1981-03-25 1982-09-30 Nissan Motor Voice recognition unit for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04347293A (ja) * 1991-05-23 1992-12-02 Yoshida Kogyo Kk <Ykk> シャッターの障害物感知装置

Also Published As

Publication number Publication date
JPS5873217A (ja) 1983-05-02

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