JPS5687907A - Adjuster of sound quality - Google Patents

Adjuster of sound quality

Info

Publication number
JPS5687907A
JPS5687907A JP16587779A JP16587779A JPS5687907A JP S5687907 A JPS5687907 A JP S5687907A JP 16587779 A JP16587779 A JP 16587779A JP 16587779 A JP16587779 A JP 16587779A JP S5687907 A JPS5687907 A JP S5687907A
Authority
JP
Japan
Prior art keywords
high band
signal
positive
band
controlling
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
JP16587779A
Other languages
Japanese (ja)
Other versions
JPS6158048B2 (en
Inventor
Hiroyasu Shinpo
Shizuo Inohara
Minoru Ueda
Hirosuke Yamamoto
Yuichi Shiotani
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 JP16587779A priority Critical patent/JPS5687907A/en
Publication of JPS5687907A publication Critical patent/JPS5687907A/en
Publication of JPS6158048B2 publication Critical patent/JPS6158048B2/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
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices

Landscapes

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

Abstract

PURPOSE:To enable to adjust high and low band characteristics independently and arbitrarily, by controlling the ratio of positive and negative phase components at a differential amplifier, through a direct current control voltage. CONSTITUTION:When the same voltage is fed to high band control input terminals 52, 53, the positive and negative components of high band passing signal current flow to the collector of TRs 21, 22 equally, and they are cancelled at a load resistor 49 and no high band signal is output. The ratio of current of high band signal flowing to TRs21, 23 can be controlled by changing the control voltage of low band control input terminals 54 and 55, and the high band-passing signal quantity of positive or negative phase component can be added to the flat signal current from TR13 by controlling the amplitude. When much positive phase component is added, the high band is increased and when much negative phase component is added, the high band is decreased in the output signal. Similarly, the low band component in the output signal can be increased or decreased by controlling the low band control voltage fed to the terminals 54, 55.
JP16587779A 1979-12-19 1979-12-19 Adjuster of sound quality Granted JPS5687907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16587779A JPS5687907A (en) 1979-12-19 1979-12-19 Adjuster of sound quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16587779A JPS5687907A (en) 1979-12-19 1979-12-19 Adjuster of sound quality

Publications (2)

Publication Number Publication Date
JPS5687907A true JPS5687907A (en) 1981-07-17
JPS6158048B2 JPS6158048B2 (en) 1986-12-10

Family

ID=15820669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16587779A Granted JPS5687907A (en) 1979-12-19 1979-12-19 Adjuster of sound quality

Country Status (1)

Country Link
JP (1) JPS5687907A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696519A (en) * 1979-12-29 1981-08-04 Sony Corp Tone control circuit
JPS5696518A (en) * 1979-12-29 1981-08-04 Sony Corp Tone control circuit
JPS58166119U (en) * 1982-04-30 1983-11-05 パイオニア株式会社 Tone control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696519A (en) * 1979-12-29 1981-08-04 Sony Corp Tone control circuit
JPS5696518A (en) * 1979-12-29 1981-08-04 Sony Corp Tone control circuit
JPS6336564B2 (en) * 1979-12-29 1988-07-20 Sony Corp
JPS6336563B2 (en) * 1979-12-29 1988-07-20 Sony Corp
JPS58166119U (en) * 1982-04-30 1983-11-05 パイオニア株式会社 Tone control circuit

Also Published As

Publication number Publication date
JPS6158048B2 (en) 1986-12-10

Similar Documents

Publication Publication Date Title
JPS5639606A (en) Self-excited type d-class amplifier
JPS5687907A (en) Adjuster of sound quality
JPS5575316A (en) Control circuit for frequency characteristic
JPS5728410A (en) Voltage controlled type variable gain circuit
JPS5566110A (en) Amplifier circuit
JPS57199396A (en) Speaker input controlling circuit
JPS5677710A (en) Zero-point adjusting circuit
JPS5582519A (en) Amplifier
JPS5651618A (en) Hot-wire flow sensor circuit
JPS5518130A (en) Offset circuit
JPS5520062A (en) Tone control circuit
JPS5745708A (en) Amplifying circuit
JPS54126445A (en) Notch filter
JPS5444176A (en) Tilt signal generating circuit
JPS5561117A (en) Tone control circuit
JPS5750115A (en) Gain control circuit
JPS5329478A (en) Controller for non-linear process
JPS5769915A (en) Automatic gain control circuit
JPS5678207A (en) Line amplifier
JPS55123216A (en) Tone controller
JPS5675712A (en) Power amplifier
JPS5780816A (en) Voltage control variable gain circuit
JPS555559A (en) Integrated circuit
JPS5482948A (en) Functional amplifier
JPS55123215A (en) Tone controller