SE7907070L - Apparat for automatisk volyminstellning - Google Patents

Apparat for automatisk volyminstellning

Info

Publication number
SE7907070L
SE7907070L SE7907070A SE7907070A SE7907070L SE 7907070 L SE7907070 L SE 7907070L SE 7907070 A SE7907070 A SE 7907070A SE 7907070 A SE7907070 A SE 7907070A SE 7907070 L SE7907070 L SE 7907070L
Authority
SE
Sweden
Prior art keywords
level
signal
circuit
loudspeaker
generating
Prior art date
Application number
SE7907070A
Other languages
English (en)
Swedish (sv)
Inventor
T Takizawa
Original Assignee
Viva Co
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
Priority claimed from JP53103385A external-priority patent/JPS5841003B2/ja
Priority claimed from JP14494378A external-priority patent/JPS5571307A/ja
Priority claimed from JP15623978A external-priority patent/JPS5841004B2/ja
Application filed by Viva Co filed Critical Viva Co
Publication of SE7907070L publication Critical patent/SE7907070L/

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

  • Circuit For Audible Band Transducer (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
SE7907070A 1978-08-26 1979-08-24 Apparat for automatisk volyminstellning SE7907070L (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP53103385A JPS5841003B2 (ja) 1978-08-26 1978-08-26 自動音量調整装置
JP14494378A JPS5571307A (en) 1978-11-25 1978-11-25 Automatic sound volume adjustment unit
JP15623978A JPS5841004B2 (ja) 1978-12-20 1978-12-20 自動音量調整装置

Publications (1)

Publication Number Publication Date
SE7907070L true SE7907070L (sv) 1980-02-27

Family

ID=27309980

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7907070A SE7907070L (sv) 1978-08-26 1979-08-24 Apparat for automatisk volyminstellning

Country Status (5)

Country Link
US (1) US4254303A ( )
DE (1) DE2934593A1 ( )
FR (1) FR2435879A1 ( )
GB (1) GB2029141A ( )
SE (1) SE7907070L ( )

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Also Published As

Publication number Publication date
GB2029141A (en) 1980-03-12
FR2435879A1 (fr) 1980-04-04
US4254303A (en) 1981-03-03
DE2934593A1 (de) 1980-02-28

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