JPS6210443B2 - - Google Patents

Info

Publication number
JPS6210443B2
JPS6210443B2 JP14494378A JP14494378A JPS6210443B2 JP S6210443 B2 JPS6210443 B2 JP S6210443B2 JP 14494378 A JP14494378 A JP 14494378A JP 14494378 A JP14494378 A JP 14494378A JP S6210443 B2 JPS6210443 B2 JP S6210443B2
Authority
JP
Japan
Prior art keywords
level
output
signal
volume
speaker
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
JP14494378A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5571307A (en
Inventor
Tetsuya Takizawa
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.)
BIIBA KK
Original Assignee
BIIBA KK
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 BIIBA KK filed Critical BIIBA KK
Priority to JP14494378A priority Critical patent/JPS5571307A/ja
Priority to GB7927311A priority patent/GB2029141A/en
Priority to US06/064,384 priority patent/US4254303A/en
Priority to FR7921366A priority patent/FR2435879A1/fr
Priority to SE7907070A priority patent/SE7907070L/
Priority to DE19792934593 priority patent/DE2934593A1/de
Publication of JPS5571307A publication Critical patent/JPS5571307A/ja
Publication of JPS6210443B2 publication Critical patent/JPS6210443B2/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)
JP14494378A 1978-08-26 1978-11-25 Automatic sound volume adjustment unit Granted JPS5571307A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP14494378A JPS5571307A (en) 1978-11-25 1978-11-25 Automatic sound volume adjustment unit
GB7927311A GB2029141A (en) 1978-08-26 1979-08-06 Gain control arrangements
US06/064,384 US4254303A (en) 1978-08-26 1979-08-08 Automatic volume adjusting apparatus
FR7921366A FR2435879A1 (fr) 1978-08-26 1979-08-24 Appareils de reglage automatique du volume sonore en fonction des variations du niveau du bruit ambiant
SE7907070A SE7907070L (sv) 1978-08-26 1979-08-24 Apparat for automatisk volyminstellning
DE19792934593 DE2934593A1 (de) 1978-08-26 1979-08-27 Automatischer lautstaerkenregler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14494378A JPS5571307A (en) 1978-11-25 1978-11-25 Automatic sound volume adjustment unit

Publications (2)

Publication Number Publication Date
JPS5571307A JPS5571307A (en) 1980-05-29
JPS6210443B2 true JPS6210443B2 (enrdf_load_stackoverflow) 1987-03-06

Family

ID=15373784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14494378A Granted JPS5571307A (en) 1978-08-26 1978-11-25 Automatic sound volume adjustment unit

Country Status (1)

Country Link
JP (1) JPS5571307A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4508900B2 (ja) * 2005-02-16 2010-07-21 株式会社オーディオテクニカ マイクロホン

Also Published As

Publication number Publication date
JPS5571307A (en) 1980-05-29

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