JPS6234297B2 - - Google Patents

Info

Publication number
JPS6234297B2
JPS6234297B2 JP3414881A JP3414881A JPS6234297B2 JP S6234297 B2 JPS6234297 B2 JP S6234297B2 JP 3414881 A JP3414881 A JP 3414881A JP 3414881 A JP3414881 A JP 3414881A JP S6234297 B2 JPS6234297 B2 JP S6234297B2
Authority
JP
Japan
Prior art keywords
circuit
level
frequency
control voltage
low
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.)
Expired
Application number
JP3414881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57148429A (en
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
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd 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 JPS57148429A (en) 1982-09-13
JPS6234297B2 true 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)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL135630A0 (en) * 1997-12-08 2001-05-20 Mitsubishi Electric Corp Method and apparatus for processing sound signal

Also Published As

Publication number Publication date
JPS57148429A (en) 1982-09-13

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