JPS5617509A - Control circuit of frequency characteristics - Google Patents

Control circuit of frequency characteristics

Info

Publication number
JPS5617509A
JPS5617509A JP9350079A JP9350079A JPS5617509A JP S5617509 A JPS5617509 A JP S5617509A JP 9350079 A JP9350079 A JP 9350079A JP 9350079 A JP9350079 A JP 9350079A JP S5617509 A JPS5617509 A JP S5617509A
Authority
JP
Japan
Prior art keywords
amplifier
level
descent
ascent
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
JP9350079A
Other languages
Japanese (ja)
Other versions
JPS6336562B2 (en
Inventor
Tadao Suzuki
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 JP9350079A priority Critical patent/JPS5617509A/en
Publication of JPS5617509A publication Critical patent/JPS5617509A/en
Publication of JPS6336562B2 publication Critical patent/JPS6336562B2/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

Landscapes

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

Abstract

PURPOSE:To ensure the control for both the ascent and descent of the level of the fixed band component for the input signal supplied to the amplifier, by providing the circuit consisting of the capacitor, potentiometer and switch to the output terminal of the amplifier. CONSTITUTION:In triple circuit 35BS which controls both the ascent and descent of the low range component of sound quality control circuit 35, the voltage obtained at the variable terminal of potentiometer VR1 is extracted in the form of the output signal or supplied as the feedback signal of the amplifier or the output signal is extracted out of the output side of the amplifier. This selection is carried out by switches S306-S309. Thus the control is given whether the level of the fixed band component of the input signal supplied to the amplifier is increased or decreased to the reference level. And the degree of the level ascent and descent is controlled by meter VR1.
JP9350079A 1979-07-23 1979-07-23 Control circuit of frequency characteristics Granted JPS5617509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9350079A JPS5617509A (en) 1979-07-23 1979-07-23 Control circuit of frequency characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9350079A JPS5617509A (en) 1979-07-23 1979-07-23 Control circuit of frequency characteristics

Publications (2)

Publication Number Publication Date
JPS5617509A true JPS5617509A (en) 1981-02-19
JPS6336562B2 JPS6336562B2 (en) 1988-07-20

Family

ID=14084061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9350079A Granted JPS5617509A (en) 1979-07-23 1979-07-23 Control circuit of frequency characteristics

Country Status (1)

Country Link
JP (1) JPS5617509A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850721U (en) * 1981-09-22 1983-04-06 ヤマハ株式会社 Auditory correction circuit
JPS5873218A (en) * 1981-10-27 1983-05-02 Fujitsu Ten Ltd Controller for sound quality
JPS58179008A (en) * 1982-04-01 1983-10-20 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Signal amplifying and/or attenuating circuit
JPS59119645U (en) * 1983-01-31 1984-08-13 パイオニア株式会社 audio equipment
JPS62174491A (en) * 1986-01-24 1987-07-31 株式会社　利根ボ−リング Air pressure impact type excavator
JPS63167889A (en) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング Multi-air hammer device
JPH0918257A (en) * 1996-07-01 1997-01-17 Mazda Motor Corp Audio device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524754A (en) * 1975-06-28 1977-01-14 Licentia Gmbh Amplifier having controllable transmission amount and switching control characteristic curve
JPS5445556A (en) * 1977-09-19 1979-04-10 Torio Kk Low frequency tone control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524754A (en) * 1975-06-28 1977-01-14 Licentia Gmbh Amplifier having controllable transmission amount and switching control characteristic curve
JPS5445556A (en) * 1977-09-19 1979-04-10 Torio Kk Low frequency tone control circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850721U (en) * 1981-09-22 1983-04-06 ヤマハ株式会社 Auditory correction circuit
JPS5873218A (en) * 1981-10-27 1983-05-02 Fujitsu Ten Ltd Controller for sound quality
JPS58179008A (en) * 1982-04-01 1983-10-20 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Signal amplifying and/or attenuating circuit
JPH0326562B2 (en) * 1982-04-01 1991-04-11 Fuiritsupusu Furuuiranpenfuaburiken Nv
JPS59119645U (en) * 1983-01-31 1984-08-13 パイオニア株式会社 audio equipment
JPH0311957Y2 (en) * 1983-01-31 1991-03-22
JPS62174491A (en) * 1986-01-24 1987-07-31 株式会社　利根ボ−リング Air pressure impact type excavator
JPS63167889A (en) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング Multi-air hammer device
JPH0351874B2 (en) * 1986-12-27 1991-08-08 Tone Boring Co
JPH0918257A (en) * 1996-07-01 1997-01-17 Mazda Motor Corp Audio device

Also Published As

Publication number Publication date
JPS6336562B2 (en) 1988-07-20

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