JPS5535584A - Sound volume controller - Google Patents

Sound volume controller

Info

Publication number
JPS5535584A
JPS5535584A JP10994778A JP10994778A JPS5535584A JP S5535584 A JPS5535584 A JP S5535584A JP 10994778 A JP10994778 A JP 10994778A JP 10994778 A JP10994778 A JP 10994778A JP S5535584 A JPS5535584 A JP S5535584A
Authority
JP
Japan
Prior art keywords
voltage
control
sound
circuit
control voltage
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
JP10994778A
Other languages
Japanese (ja)
Other versions
JPS6138643B2 (en
Inventor
Takahiro Yasuhoso
Giichi Tsuboi
Koji Fujita
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 JP10994778A priority Critical patent/JPS5535584A/en
Publication of JPS5535584A publication Critical patent/JPS5535584A/en
Publication of JPS6138643B2 publication Critical patent/JPS6138643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To ensure the perfect sound arrest at the remote control time by applying the voltage which conducts when the control voltage is under the fixed level to the base side of the transistor connected to the control terminal of the electronic volume circuit. CONSTITUTION:Electronic volume circuit 6 varies the sound volume by the control voltage which is applied to the control terminal and then generates the control voltage via control voltage generation cirucit 1 featuring such characteristics as to become the minimum voltage under the sound arrest control state to apply it to circuit 6. Then the collector and the emitter are connected between the control terminal and the earth of circuit 6 via transistor 15, and the voltage is applied to the base side so that the conduction may be secured when the control voltage becomes under the fixed voltage level. As a result, the impedance of the supply path of the control voltage can be reduced at one time in the range where the sound volume is small, and also the sound arresting function can be secured well at the remote control time to perform the perfect sound arrest.
JP10994778A 1978-09-06 1978-09-06 Sound volume controller Granted JPS5535584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10994778A JPS5535584A (en) 1978-09-06 1978-09-06 Sound volume controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10994778A JPS5535584A (en) 1978-09-06 1978-09-06 Sound volume controller

Publications (2)

Publication Number Publication Date
JPS5535584A true JPS5535584A (en) 1980-03-12
JPS6138643B2 JPS6138643B2 (en) 1986-08-30

Family

ID=14523143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10994778A Granted JPS5535584A (en) 1978-09-06 1978-09-06 Sound volume controller

Country Status (1)

Country Link
JP (1) JPS5535584A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103511A (en) * 1980-01-23 1981-08-18 Hitachi Ltd Monolithic semiconductor integrated circuit
JPS56142124U (en) * 1980-03-25 1981-10-27
JPS56145117U (en) * 1980-04-01 1981-11-02
JPS5723009U (en) * 1980-07-14 1982-02-05
JPS58186619U (en) * 1982-06-08 1983-12-12 パイオニア株式会社 Electronic volume control device
JPS5920714U (en) * 1982-07-29 1984-02-08 パイオニア株式会社 gain control circuit
JPS61100026U (en) * 1984-12-04 1986-06-26
JPS6385918U (en) * 1986-11-26 1988-06-04

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103511A (en) * 1980-01-23 1981-08-18 Hitachi Ltd Monolithic semiconductor integrated circuit
JPS56142124U (en) * 1980-03-25 1981-10-27
JPS56145117U (en) * 1980-04-01 1981-11-02
JPS5723009U (en) * 1980-07-14 1982-02-05
JPS58186619U (en) * 1982-06-08 1983-12-12 パイオニア株式会社 Electronic volume control device
JPH0221778Y2 (en) * 1982-06-08 1990-06-12
JPS5920714U (en) * 1982-07-29 1984-02-08 パイオニア株式会社 gain control circuit
JPS61100026U (en) * 1984-12-04 1986-06-26
JPS6385918U (en) * 1986-11-26 1988-06-04

Also Published As

Publication number Publication date
JPS6138643B2 (en) 1986-08-30

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