JPS57147307A - Sound volume controller - Google Patents

Sound volume controller

Info

Publication number
JPS57147307A
JPS57147307A JP3297081A JP3297081A JPS57147307A JP S57147307 A JPS57147307 A JP S57147307A JP 3297081 A JP3297081 A JP 3297081A JP 3297081 A JP3297081 A JP 3297081A JP S57147307 A JPS57147307 A JP S57147307A
Authority
JP
Japan
Prior art keywords
sound volume
during
pulse signal
powering
control
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.)
Granted
Application number
JP3297081A
Other languages
English (en)
Other versions
JPH0141080B2 (ja
Inventor
Hiroyuki Ozaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3297081A priority Critical patent/JPS57147307A/ja
Publication of JPS57147307A publication Critical patent/JPS57147307A/ja
Publication of JPH0141080B2 publication Critical patent/JPH0141080B2/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
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP3297081A 1981-03-06 1981-03-06 Sound volume controller Granted JPS57147307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3297081A JPS57147307A (en) 1981-03-06 1981-03-06 Sound volume controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3297081A JPS57147307A (en) 1981-03-06 1981-03-06 Sound volume controller

Publications (2)

Publication Number Publication Date
JPS57147307A true JPS57147307A (en) 1982-09-11
JPH0141080B2 JPH0141080B2 (ja) 1989-09-01

Family

ID=12373753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3297081A Granted JPS57147307A (en) 1981-03-06 1981-03-06 Sound volume controller

Country Status (1)

Country Link
JP (1) JPS57147307A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169213A (ja) * 1983-03-16 1984-09-25 Nec Corp 音量可変装置
JPS6119206A (ja) * 1984-07-05 1986-01-28 Akai Electric Co Ltd オ−トフエ−ダ
JPS6423118U (ja) * 1987-07-31 1989-02-07
JPH04110020U (ja) * 1991-03-11 1992-09-24 株式会社ケンウツド ミユートコントロール回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54117660A (en) * 1978-03-03 1979-09-12 Matsushita Electric Ind Co Ltd Sound volume controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54117660A (en) * 1978-03-03 1979-09-12 Matsushita Electric Ind Co Ltd Sound volume controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169213A (ja) * 1983-03-16 1984-09-25 Nec Corp 音量可変装置
JPS6119206A (ja) * 1984-07-05 1986-01-28 Akai Electric Co Ltd オ−トフエ−ダ
JPS6423118U (ja) * 1987-07-31 1989-02-07
JPH04110020U (ja) * 1991-03-11 1992-09-24 株式会社ケンウツド ミユートコントロール回路

Also Published As

Publication number Publication date
JPH0141080B2 (ja) 1989-09-01

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