JP2003249864A5 - - Google Patents

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Publication number
JP2003249864A5
JP2003249864A5 JP2002047330A JP2002047330A JP2003249864A5 JP 2003249864 A5 JP2003249864 A5 JP 2003249864A5 JP 2002047330 A JP2002047330 A JP 2002047330A JP 2002047330 A JP2002047330 A JP 2002047330A JP 2003249864 A5 JP2003249864 A5 JP 2003249864A5
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JP
Japan
Prior art keywords
signal
noise
amplifying
audio signal
mixed
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
JP2002047330A
Other languages
English (en)
Japanese (ja)
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JP2003249864A (ja
JP4025093B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2002047330A priority Critical patent/JP4025093B2/ja
Priority claimed from JP2002047330A external-priority patent/JP4025093B2/ja
Priority to US10/193,424 priority patent/US7024004B2/en
Publication of JP2003249864A publication Critical patent/JP2003249864A/ja
Publication of JP2003249864A5 publication Critical patent/JP2003249864A5/ja
Application granted granted Critical
Publication of JP4025093B2 publication Critical patent/JP4025093B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2002047330A 2002-02-25 2002-02-25 音響回路 Expired - Fee Related JP4025093B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002047330A JP4025093B2 (ja) 2002-02-25 2002-02-25 音響回路
US10/193,424 US7024004B2 (en) 2002-02-25 2002-07-11 Audio circuit having noise cancelling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002047330A JP4025093B2 (ja) 2002-02-25 2002-02-25 音響回路

Publications (3)

Publication Number Publication Date
JP2003249864A JP2003249864A (ja) 2003-09-05
JP2003249864A5 true JP2003249864A5 (https=) 2005-08-18
JP4025093B2 JP4025093B2 (ja) 2007-12-19

Family

ID=27750687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002047330A Expired - Fee Related JP4025093B2 (ja) 2002-02-25 2002-02-25 音響回路

Country Status (2)

Country Link
US (1) US7024004B2 (https=)
JP (1) JP4025093B2 (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4085380B2 (ja) * 2003-04-14 2008-05-14 ソニー株式会社 曲間検出装置、曲間検出方法及び曲間検出プログラム
JP4876378B2 (ja) * 2004-08-27 2012-02-15 日本電気株式会社 音声処理装置、音声処理方法及び音声処理プログラム
TWI259721B (en) * 2005-05-19 2006-08-01 Realtek Semiconductor Corp Noise treatment device and method
US20070230715A1 (en) * 2006-03-28 2007-10-04 Ingemi Corp. Audio limiting device for headphones
JP4741537B2 (ja) * 2007-03-27 2011-08-03 Ｋｄｄｉ株式会社 ノイズ除去回路
CN102110463A (zh) * 2009-12-29 2011-06-29 三星电子株式会社 半导体存储器接口设备及方法
US8633767B2 (en) * 2011-08-29 2014-01-21 Mediatek Inc. Amplifier circuit with noise suppression and related noise suppression method thereof
CN102325288B (zh) * 2011-09-02 2014-04-16 惠州Tcl移动通信有限公司 用于消除移动终端耳机音频电路噪声的消噪装置和方法
JP5417491B2 (ja) * 2012-06-27 2014-02-12 株式会社東芝 電子機器、方法およびプログラム
CN104035826A (zh) * 2013-03-07 2014-09-10 安凯(广州)微电子技术有限公司 一种消除软件噪声方法及装置
CN104049651B (zh) * 2013-03-11 2016-12-28 广州市旺骏机电设备安装有限公司 制冷系统
US9699542B2 (en) 2014-10-03 2017-07-04 Analog Devices Global Headset amplification circuit with error voltage suppression
CN106023998B (zh) * 2016-05-27 2019-12-13 北京视觉世界科技有限公司 摄像头音频输入装置、去噪方法和摄像头
CN106601225A (zh) * 2017-01-23 2017-04-26 声源科技（深圳）有限公司 一种主动降噪耳机降低底噪的方法和装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02279026A (ja) 1989-04-20 1990-11-15 Nec Corp 車載機器の音声信号処理回路
US5727072A (en) * 1995-02-24 1998-03-10 Nynex Science & Technology Use of noise segmentation for noise cancellation

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