JP5030250B2 - 電子機器及びその制御方法 - Google Patents

電子機器及びその制御方法 Download PDF

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Publication number
JP5030250B2
JP5030250B2 JP2005029826A JP2005029826A JP5030250B2 JP 5030250 B2 JP5030250 B2 JP 5030250B2 JP 2005029826 A JP2005029826 A JP 2005029826A JP 2005029826 A JP2005029826 A JP 2005029826A JP 5030250 B2 JP5030250 B2 JP 5030250B2
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Japan
Prior art keywords
acoustic data
gain
noise
data
output
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Expired - Fee Related
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JP2005029826A
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English (en)
Japanese (ja)
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JP2006216188A5 (enExample
JP2006216188A (ja
Inventor
哲也 涌井
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Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2005029826A priority Critical patent/JP5030250B2/ja
Priority to US11/341,662 priority patent/US7848530B2/en
Publication of JP2006216188A publication Critical patent/JP2006216188A/ja
Publication of JP2006216188A5 publication Critical patent/JP2006216188A5/ja
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Publication of JP5030250B2 publication Critical patent/JP5030250B2/ja
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
JP2005029826A 2005-02-04 2005-02-04 電子機器及びその制御方法 Expired - Fee Related JP5030250B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005029826A JP5030250B2 (ja) 2005-02-04 2005-02-04 電子機器及びその制御方法
US11/341,662 US7848530B2 (en) 2005-02-04 2006-01-30 Electronic device and its control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005029826A JP5030250B2 (ja) 2005-02-04 2005-02-04 電子機器及びその制御方法

Publications (3)

Publication Number Publication Date
JP2006216188A JP2006216188A (ja) 2006-08-17
JP2006216188A5 JP2006216188A5 (enExample) 2008-03-21
JP5030250B2 true JP5030250B2 (ja) 2012-09-19

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Family Applications (1)

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JP2005029826A Expired - Fee Related JP5030250B2 (ja) 2005-02-04 2005-02-04 電子機器及びその制御方法

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US (1) US7848530B2 (enExample)
JP (1) JP5030250B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4738213B2 (ja) * 2006-03-09 2011-08-03 富士通株式会社 利得調整方法及び利得調整装置
JP5351644B2 (ja) * 2009-07-27 2013-11-27 キヤノン株式会社 音声記録装置及び方法、ならびに撮像装置
JP5594133B2 (ja) * 2010-12-28 2014-09-24 ソニー株式会社 音声信号処理装置、音声信号処理方法及びプログラム
CN107886508B (zh) * 2017-11-23 2021-11-23 上海联影医疗科技股份有限公司 差分减影方法和医学图像处理方法及系统
WO2023272631A1 (zh) 2021-06-30 2023-01-05 深圳市汇顶科技股份有限公司 音频信号的降噪方法、音频信号处理装置及电子设备

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5679509A (en) * 1979-12-04 1981-06-30 Ricoh Co Ltd Automatic gain control circuit
JPS57152720A (en) * 1981-03-18 1982-09-21 Fujitsu Ltd Digital filter with agc
JPS63209209A (ja) * 1987-02-25 1988-08-30 Yamaha Corp デイジタル信号処理回路
JPS63211820A (ja) * 1987-02-27 1988-09-02 Hitachi Ltd Ａ／ｄ変換装置
JPH01212921A (ja) * 1988-02-19 1989-08-25 Nec Corp Ａ／ｄ変換回路
JP2633705B2 (ja) * 1990-02-06 1997-07-23 株式会社東芝 ノイズリダクション装置
JPH03230370A (ja) * 1990-02-06 1991-10-14 Matsushita Electric Ind Co Ltd 磁気記録再生装置
JP3183417B2 (ja) * 1992-04-17 2001-07-09 ソニー株式会社 Ａ／ｄ変換装置
JPH05303385A (ja) * 1992-04-28 1993-11-16 Mitsubishi Electric Corp 記録再生装置
JPH07177596A (ja) 1993-12-17 1995-07-14 Canon Inc 音声処理装置
JPH08160994A (ja) * 1994-12-07 1996-06-21 Matsushita Electric Ind Co Ltd 雑音抑圧装置
JPH09115239A (ja) * 1995-10-18 1997-05-02 Sanyo Electric Co Ltd 音声信号記録再生装置
US5903819A (en) * 1996-03-13 1999-05-11 Ericsson Inc. Noise suppressor circuit and associated method for suppressing periodic interference component portions of a communication signal
JPH09320006A (ja) * 1996-05-31 1997-12-12 Victor Co Of Japan Ltd 消音化処理回路
JP3400330B2 (ja) * 1998-01-09 2003-04-28 日本ビクター株式会社 雑音低減回路及びビデオカメラ装置
JP3823594B2 (ja) * 1999-04-07 2006-09-20 ソニー株式会社 メカノイズ低減装置及びメカノイズ低減方法
JP2000293806A (ja) * 1999-04-07 2000-10-20 Sony Corp メカノイズ自動低減装置
JP2001320794A (ja) * 2000-05-11 2001-11-16 Sharp Corp 記録再生装置
JP3873701B2 (ja) * 2001-10-04 2007-01-24 ソニー株式会社 ノイズ低減装置及びノイズ低減方法
JP3882669B2 (ja) * 2002-04-23 2007-02-21 ソニー株式会社 ノイズ低減装置及びノイズ低減方法
JP2004120264A (ja) * 2002-09-25 2004-04-15 Fuji Photo Film Co Ltd デジタルカメラ
JP3950843B2 (ja) * 2003-11-27 2007-08-01 キヤノン株式会社 電子機器及びビデオカメラ装置
JP4227529B2 (ja) * 2004-01-06 2009-02-18 パナソニック株式会社 周期性雑音抑圧装置

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Publication number Publication date
US20060176546A1 (en) 2006-08-10
US7848530B2 (en) 2010-12-07
JP2006216188A (ja) 2006-08-17

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