IT1138559B - Circuito di riduzione del rumore - Google Patents

Circuito di riduzione del rumore

Info

Publication number
IT1138559B
IT1138559B IT23755/81A IT2375581A IT1138559B IT 1138559 B IT1138559 B IT 1138559B IT 23755/81 A IT23755/81 A IT 23755/81A IT 2375581 A IT2375581 A IT 2375581A IT 1138559 B IT1138559 B IT 1138559B
Authority
IT
Italy
Prior art keywords
noise reduction
reduction circuit
circuit
noise
reduction
Prior art date
Application number
IT23755/81A
Other languages
English (en)
Other versions
IT8123755A0 (it
Inventor
Akagiri Kenzo
Katakura Masayuki
Ohkouchi Motomi
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of IT8123755A0 publication Critical patent/IT8123755A0/it
Application granted granted Critical
Publication of IT1138559B publication Critical patent/IT1138559B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • 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
IT23755/81A 1980-09-03 1981-09-02 Circuito di riduzione del rumore IT1138559B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121208A JPS5746517A (en) 1980-09-03 1980-09-03 Noise reduction circuit

Publications (2)

Publication Number Publication Date
IT8123755A0 IT8123755A0 (it) 1981-09-02
IT1138559B true IT1138559B (it) 1986-09-17

Family

ID=14805543

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23755/81A IT1138559B (it) 1980-09-03 1981-09-02 Circuito di riduzione del rumore

Country Status (12)

Country Link
US (1) US4427950A (it)
JP (1) JPS5746517A (it)
KR (1) KR880000597B1 (it)
AT (1) AT374938B (it)
BE (1) BE890183A (it)
CA (1) CA1178210A (it)
CH (1) CH653795A5 (it)
DE (1) DE3134669C2 (it)
FR (1) FR2489573B1 (it)
GB (1) GB2083985B (it)
IT (1) IT1138559B (it)
NL (1) NL191723C (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012858U (ja) * 1983-07-04 1985-01-28 日本ビクター株式会社 ノイズリダクシヨン回路
US4795025A (en) * 1985-06-28 1989-01-03 Kabushiki Kaisha Toshiba Parts feeding apparatus of the piezoelectric drive type
JP3436777B2 (ja) * 1993-08-11 2003-08-18 パイオニア株式会社 ノイズリダクションシステムにおける再生ポジション選択方法および装置
WO1998010590A1 (fr) * 1996-09-02 1998-03-12 Sony Corporation Dispositif et procede de transmission d'un signal video
KR100213073B1 (ko) * 1996-11-09 1999-08-02 윤종용 재생 오디오 신호의 주파수 특성 보상 장치
KR100667852B1 (ko) * 2006-01-13 2007-01-11 삼성전자주식회사 휴대용 레코더 기기의 잡음 제거 장치 및 그 방법
JP4813189B2 (ja) * 2006-01-23 2011-11-09 株式会社リコー 高調波抑制回路
EP1857902A1 (en) * 2006-05-18 2007-11-21 Saab Ab Method and device for controlling backlash
JP5882253B2 (ja) 2013-04-23 2016-03-09 高千穂産業株式会社 長尺物品の位置測定方法
CN105656442A (zh) * 2014-11-21 2016-06-08 中兴通讯股份有限公司 一种增益处理方法和装置
DE102015110460B4 (de) * 2015-06-30 2017-01-19 Schmidhauser Ag Erkennung eines Netzphasenausfalls bei Umrichtern mit einer Frequenzdetektion in der Zwischenkreisspannung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678416A (en) * 1971-07-26 1972-07-18 Richard S Burwen Dynamic noise filter having means for varying cutoff point
CA955532A (en) * 1971-04-16 1974-10-01 Masao Tomita Automatic noise reduction system
JPS52142409A (en) * 1976-05-21 1977-11-28 Toshiba Corp Noise reduction system
DE2747415C3 (de) * 1976-10-21 1981-05-14 Tokyo Shibaura Electric Co., Ltd., Kawasaki, Kanagawa Rauschunterdrückungssystem
US4101849A (en) * 1976-11-08 1978-07-18 Dbx, Inc. Adaptive filter
JPS56106433A (en) * 1980-01-28 1981-08-24 Sony Corp Noise reducing circuit
US4337445A (en) * 1981-01-21 1982-06-29 Sony Corporation Compander circuit which produces variable pre-emphasis and de-emphasis

Also Published As

Publication number Publication date
IT8123755A0 (it) 1981-09-02
FR2489573B1 (fr) 1985-12-13
NL8104090A (nl) 1982-04-01
NL191723C (nl) 1996-04-02
KR830008280A (ko) 1983-11-16
DE3134669A1 (de) 1982-05-06
CH653795A5 (de) 1986-01-15
KR880000597B1 (ko) 1988-04-16
BE890183A (fr) 1982-01-04
FR2489573A1 (fr) 1982-03-05
GB2083985B (en) 1984-10-31
GB2083985A (en) 1982-03-31
US4427950A (en) 1984-01-24
JPS5746517A (en) 1982-03-17
AT374938B (de) 1984-06-12
CA1178210A (en) 1984-11-20
JPH0123963B2 (it) 1989-05-09
DE3134669C2 (de) 1995-01-05
NL191723B (nl) 1995-12-01

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Effective date: 19970926