JPH0252445B2 - - Google Patents

Info

Publication number
JPH0252445B2
JPH0252445B2 JP22998884A JP22998884A JPH0252445B2 JP H0252445 B2 JPH0252445 B2 JP H0252445B2 JP 22998884 A JP22998884 A JP 22998884A JP 22998884 A JP22998884 A JP 22998884A JP H0252445 B2 JPH0252445 B2 JP H0252445B2
Authority
JP
Japan
Prior art keywords
signal
noise level
selection switch
vehicle
frequency
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
JP22998884A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61108212A (ja
Inventor
Masayuki Kato
Yoshiro Kunugi
Shinichi Suzuki
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP59229988A priority Critical patent/JPS61108212A/ja
Publication of JPS61108212A publication Critical patent/JPS61108212A/ja
Publication of JPH0252445B2 publication Critical patent/JPH0252445B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H03G3/24—Control dependent upon ambient noise level or sound level

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP59229988A 1984-10-31 1984-10-31 自動音量調整機能付車載周波数特性検出装置 Granted JPS61108212A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59229988A JPS61108212A (ja) 1984-10-31 1984-10-31 自動音量調整機能付車載周波数特性検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59229988A JPS61108212A (ja) 1984-10-31 1984-10-31 自動音量調整機能付車載周波数特性検出装置

Publications (2)

Publication Number Publication Date
JPS61108212A JPS61108212A (ja) 1986-05-26
JPH0252445B2 true JPH0252445B2 (enrdf_load_stackoverflow) 1990-11-13

Family

ID=16900838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59229988A Granted JPS61108212A (ja) 1984-10-31 1984-10-31 自動音量調整機能付車載周波数特性検出装置

Country Status (1)

Country Link
JP (1) JPS61108212A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284419U (enrdf_load_stackoverflow) * 1988-12-16 1990-06-29
FI95754C (fi) * 1992-10-21 1996-03-11 Nokia Deutschland Gmbh Äänentoistojärjestelmä
DE10018666A1 (de) 2000-04-14 2001-10-18 Harman Audio Electronic Sys Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals

Also Published As

Publication number Publication date
JPS61108212A (ja) 1986-05-26

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