JPS5696517A - Equalizer - Google Patents

Equalizer

Info

Publication number
JPS5696517A
JPS5696517A JP17293379A JP17293379A JPS5696517A JP S5696517 A JPS5696517 A JP S5696517A JP 17293379 A JP17293379 A JP 17293379A JP 17293379 A JP17293379 A JP 17293379A JP S5696517 A JPS5696517 A JP S5696517A
Authority
JP
Japan
Prior art keywords
frequency characteristics
output frequency
circuit
output
depressed
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.)
Pending
Application number
JP17293379A
Other languages
Japanese (ja)
Inventor
Hitoshi Kajiwara
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.)
ARUPAIN KK
Alpine Electronics Inc
Original Assignee
ARUPAIN KK
Alpine Electronics Inc
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 ARUPAIN KK, Alpine Electronics Inc filed Critical ARUPAIN KK
Priority to JP17293379A priority Critical patent/JPS5696517A/en
Publication of JPS5696517A publication Critical patent/JPS5696517A/en
Pending 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
    • H03G5/025—Equalizers; Volume or gain control in limited frequency bands

Abstract

PURPOSE:To increase the operativity remarkably, by switching the feedback circuit of an amplifier through the operation of an input device and displaying the output frequency characteristics for the case on a display device. CONSTITUTION:When a program key of an input device 6 is depressed, switches S1-S4 and S11-S14 of a switch circuit 3 are correspondingly switched, to selectively connect reactances 4a-4h determining the output frequency characteristics in parallel. Next, when the level key of a device 6 is depressed, switches S5-S8 and S15-S18 of the circuit 3 are correspondingly switched to selectively connect resistors R2-R5 and R12-R15 determining the output level in parallel. Thus, the feedback circuit of amplifiers 1, 2 is respectively decided to obtain the output frequency characteristics and output level accordingly. The curve and output level indicating the output frequency characteristics according to the drive signal fed from the control circuit 5 are respectively displayed.
JP17293379A 1979-12-28 1979-12-28 Equalizer Pending JPS5696517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17293379A JPS5696517A (en) 1979-12-28 1979-12-28 Equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17293379A JPS5696517A (en) 1979-12-28 1979-12-28 Equalizer

Publications (1)

Publication Number Publication Date
JPS5696517A true JPS5696517A (en) 1981-08-04

Family

ID=15951034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17293379A Pending JPS5696517A (en) 1979-12-28 1979-12-28 Equalizer

Country Status (1)

Country Link
JP (1) JPS5696517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862914A (en) * 1981-10-09 1983-04-14 Toshiba Corp Display device for frequency characteristic

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065161A (en) * 1973-10-11 1975-06-02
JPS527701A (en) * 1975-07-08 1977-01-21 Sony Corp Acoustic characteristic corrector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065161A (en) * 1973-10-11 1975-06-02
JPS527701A (en) * 1975-07-08 1977-01-21 Sony Corp Acoustic characteristic corrector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862914A (en) * 1981-10-09 1983-04-14 Toshiba Corp Display device for frequency characteristic

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