JPS57148429A - Noise reduction device - Google Patents

Noise reduction device

Info

Publication number
JPS57148429A
JPS57148429A JP3414881A JP3414881A JPS57148429A JP S57148429 A JPS57148429 A JP S57148429A JP 3414881 A JP3414881 A JP 3414881A JP 3414881 A JP3414881 A JP 3414881A JP S57148429 A JPS57148429 A JP S57148429A
Authority
JP
Japan
Prior art keywords
circuit
control
signal
voltages
circuits
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
JP3414881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6234297B2 (en, 2012
Inventor
Yukinobu Ishigaki
Yutaka Haramoto
Kaoru Totsuka
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor 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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP3414881A priority Critical patent/JPS57148429A/ja
Priority to US06/354,863 priority patent/US4449106A/en
Priority to FR8203903A priority patent/FR2501936A1/fr
Priority to DE3208525A priority patent/DE3208525C2/de
Priority to GB8206962A priority patent/GB2098031B/en
Publication of JPS57148429A publication Critical patent/JPS57148429A/ja
Publication of JPS6234297B2 publication Critical patent/JPS6234297B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP3414881A 1981-03-10 1981-03-10 Noise reduction device Granted JPS57148429A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP3414881A JPS57148429A (en) 1981-03-10 1981-03-10 Noise reduction device
US06/354,863 US4449106A (en) 1981-03-10 1982-03-04 Noise reducing apparatus
FR8203903A FR2501936A1 (fr) 1981-03-10 1982-03-09 Appareil reducteur de bruit
DE3208525A DE3208525C2 (de) 1981-03-10 1982-03-10 Rauschverminderungsvorrichtung
GB8206962A GB2098031B (en) 1981-03-10 1982-03-10 Noise reducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3414881A JPS57148429A (en) 1981-03-10 1981-03-10 Noise reduction device

Publications (2)

Publication Number Publication Date
JPS57148429A true JPS57148429A (en) 1982-09-13
JPS6234297B2 JPS6234297B2 (en, 2012) 1987-07-25

Family

ID=12406109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3414881A Granted JPS57148429A (en) 1981-03-10 1981-03-10 Noise reduction device

Country Status (1)

Country Link
JP (1) JPS57148429A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033072A (ja) * 1997-12-08 2010-02-12 Mitsubishi Electric Corp 音信号加工装置及び音信号加工方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033072A (ja) * 1997-12-08 2010-02-12 Mitsubishi Electric Corp 音信号加工装置及び音信号加工方法

Also Published As

Publication number Publication date
JPS6234297B2 (en, 2012) 1987-07-25

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