JPS5696518A - Tone control circuit - Google Patents

Tone control circuit

Info

Publication number
JPS5696518A
JPS5696518A JP17079079A JP17079079A JPS5696518A JP S5696518 A JPS5696518 A JP S5696518A JP 17079079 A JP17079079 A JP 17079079A JP 17079079 A JP17079079 A JP 17079079A JP S5696518 A JPS5696518 A JP S5696518A
Authority
JP
Japan
Prior art keywords
signal
boost
cut
fed
control circuit
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
JP17079079A
Other languages
Japanese (ja)
Other versions
JPS6336563B2 (en
Inventor
Takafumi Okada
Hajime Nakajima
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP17079079A priority Critical patent/JPS5696518A/en
Publication of JPS5696518A publication Critical patent/JPS5696518A/en
Publication of JPS6336563B2 publication Critical patent/JPS6336563B2/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
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To enable the boost-cut at high and low band in DC, by enabling to switch the boost mode and cut mode through the gain of a respective gain control circuit of signal paths for boost and cut. CONSTITUTION:An input signal from a terminal 10 is fed to an adder 20, as it is. Further, the input signal from the terminal 10 is fed to a boost use signal path consisting of a filter 31, amplifier 32 and gain control circuit 33, and the output signal is fed to the adder 20. Further, the input signal from the terminal 10 is fed to a cut use signal path consisting of a filter 41, amplifier 42 and gain control circuit 43, and the output signal is fed to the adder 20. At the adder 20, a signal given to the boost use signal path is added to the input signal, the signal through the cut use signal path is subtracted, and an output signal is picked up at the terminal 60. Further, a voltage Vc obtained from a variable resistor 50 is given to the circuits 33 and 43 as a gain control voltage, to switch the boost and cut mode by adjusting this voltage.
JP17079079A 1979-12-29 1979-12-29 Tone control circuit Granted JPS5696518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17079079A JPS5696518A (en) 1979-12-29 1979-12-29 Tone control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17079079A JPS5696518A (en) 1979-12-29 1979-12-29 Tone control circuit

Publications (2)

Publication Number Publication Date
JPS5696518A true JPS5696518A (en) 1981-08-04
JPS6336563B2 JPS6336563B2 (en) 1988-07-20

Family

ID=15911403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17079079A Granted JPS5696518A (en) 1979-12-29 1979-12-29 Tone control circuit

Country Status (1)

Country Link
JP (1) JPS5696518A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138147U (en) * 1980-03-21 1981-10-19
JPS63193604A (en) * 1986-12-22 1988-08-10 ボーズ・コーポレーション Automatic dynamic equalizer
US5229734A (en) * 1991-07-31 1993-07-20 Siemens Aktiengesellschaft Filter with adjustable edge steepness
KR101002874B1 (en) * 2007-09-18 2010-12-21 산요 세미컨덕터 컴퍼니 리미티드 Sound quality adjusting circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687907A (en) * 1979-12-19 1981-07-17 Matsushita Electric Ind Co Ltd Adjuster of sound quality

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687907A (en) * 1979-12-19 1981-07-17 Matsushita Electric Ind Co Ltd Adjuster of sound quality

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138147U (en) * 1980-03-21 1981-10-19
JPS63193604A (en) * 1986-12-22 1988-08-10 ボーズ・コーポレーション Automatic dynamic equalizer
US5229734A (en) * 1991-07-31 1993-07-20 Siemens Aktiengesellschaft Filter with adjustable edge steepness
KR101002874B1 (en) * 2007-09-18 2010-12-21 산요 세미컨덕터 컴퍼니 리미티드 Sound quality adjusting circuit

Also Published As

Publication number Publication date
JPS6336563B2 (en) 1988-07-20

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