JPS56122514A - Transmission frequency characteristic correcting equipment - Google Patents

Transmission frequency characteristic correcting equipment

Info

Publication number
JPS56122514A
JPS56122514A JP2626480A JP2626480A JPS56122514A JP S56122514 A JPS56122514 A JP S56122514A JP 2626480 A JP2626480 A JP 2626480A JP 2626480 A JP2626480 A JP 2626480A JP S56122514 A JPS56122514 A JP S56122514A
Authority
JP
Japan
Prior art keywords
input
circuit
dip
peak
signal
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
JP2626480A
Other languages
Japanese (ja)
Other versions
JPS6249765B2 (en
Inventor
Satoru Sakai
Soichi Honma
Nobumitsu Asahi
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.)
TRIO KENWOOD CORP
Kenwood KK
Original Assignee
TRIO KENWOOD CORP
Kenwood KK
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 TRIO KENWOOD CORP, Kenwood KK filed Critical TRIO KENWOOD CORP
Priority to JP2626480A priority Critical patent/JPS56122514A/en
Publication of JPS56122514A publication Critical patent/JPS56122514A/en
Publication of JPS6249765B2 publication Critical patent/JPS6249765B2/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
    • H03G5/025—Equalizers; Volume or gain control in limited frequency bands

Landscapes

  • Circuit For Audible Band Transducer (AREA)
  • Filters And Equalizers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To operate as a peak and dip filter in the constant frequency band, and also vary three parameters of center frequency, level and band width of the peak and dip, respectively and independently, by means of simple circuit configuration. CONSTITUTION:This equipment is constituted so that an output signal of the variable attenuator 8 is subtracted 10 from the input signal which has been input to the input terminal IN, the output signal of the subtractor 10 is input to the variable phase-shifting circuit 1, also the output signal of the circuit 1 is input to the variable attenuators 8, 9, and a signal which has added 11 with the output signal of the subtractor 10 is output from the output terminal OUT. According to said circuit, the input signal causes a phase interference with the signal which has passed through the circuit 1, the level is emphasized or suppressed in the band centering around the frequency whose phase is varied by -pi radian, and the peak and dip are caused. When the gains of the attenuators 8, 9 are made g1 and g2, respectively, the peak characteristic and the dip charactertistic are shown in case of g1>g2 and g1<g2, respectively, and the level is decided by the gain difference g1-g2. Also, when the grade of phase variation of the circuit 1 has been changed, the band width of the peak and dip is changed.
JP2626480A 1980-03-03 1980-03-03 Transmission frequency characteristic correcting equipment Granted JPS56122514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2626480A JPS56122514A (en) 1980-03-03 1980-03-03 Transmission frequency characteristic correcting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2626480A JPS56122514A (en) 1980-03-03 1980-03-03 Transmission frequency characteristic correcting equipment

Publications (2)

Publication Number Publication Date
JPS56122514A true JPS56122514A (en) 1981-09-26
JPS6249765B2 JPS6249765B2 (en) 1987-10-21

Family

ID=12188398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2626480A Granted JPS56122514A (en) 1980-03-03 1980-03-03 Transmission frequency characteristic correcting equipment

Country Status (1)

Country Link
JP (1) JPS56122514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014174347A (en) * 2013-03-08 2014-09-22 Toshiba Corp Active silencer and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014174347A (en) * 2013-03-08 2014-09-22 Toshiba Corp Active silencer and method

Also Published As

Publication number Publication date
JPS6249765B2 (en) 1987-10-21

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