JP2015007794A5 - - Google Patents
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- Publication number
- JP2015007794A5 JP2015007794A5 JP2014164679A JP2014164679A JP2015007794A5 JP 2015007794 A5 JP2015007794 A5 JP 2015007794A5 JP 2014164679 A JP2014164679 A JP 2014164679A JP 2014164679 A JP2014164679 A JP 2014164679A JP 2015007794 A5 JP2015007794 A5 JP 2015007794A5
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- inverting input
- output
- resistor
- node
- 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.)
- Withdrawn
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- 239000003990 capacitor Substances 0.000 claims 2
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11186155.5 | 2011-10-21 | ||
| EP11186155.5A EP2584558B1 (en) | 2011-10-21 | 2011-10-21 | Active noise reduction |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012232034A Division JP5792141B2 (ja) | 2011-10-21 | 2012-10-19 | 能動ノイズ低減 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016143043A Division JP6190501B2 (ja) | 2011-10-21 | 2016-07-21 | 能動ノイズ低減 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2015007794A JP2015007794A (ja) | 2015-01-15 |
| JP2015007794A5 true JP2015007794A5 (https=) | 2015-08-13 |
Family
ID=45581716
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012232034A Active JP5792141B2 (ja) | 2011-10-21 | 2012-10-19 | 能動ノイズ低減 |
| JP2014164679A Withdrawn JP2015007794A (ja) | 2011-10-21 | 2014-08-13 | 能動ノイズ低減 |
| JP2016143043A Active JP6190501B2 (ja) | 2011-10-21 | 2016-07-21 | 能動ノイズ低減 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012232034A Active JP5792141B2 (ja) | 2011-10-21 | 2012-10-19 | 能動ノイズ低減 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016143043A Active JP6190501B2 (ja) | 2011-10-21 | 2016-07-21 | 能動ノイズ低減 |
Country Status (3)
| Country | Link |
|---|---|
| US (3) | US9099076B2 (https=) |
| EP (1) | EP2584558B1 (https=) |
| JP (3) | JP5792141B2 (https=) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9288579B2 (en) * | 2013-01-28 | 2016-03-15 | Neofidelity, Inc. | Method for dynamically adjusting gain of parametric equalizer according to input signal, dynamic parametric equalizer and dynamic parametric equalizer system employing the same |
| AU2014342700B2 (en) | 2013-10-28 | 2016-12-22 | 3M Innovative Properties Company | Adaptive frequency response, adaptive automatic level control and handling radio communications for a hearing protector |
| CN103888876B (zh) * | 2014-03-31 | 2018-05-08 | 深圳市冠旭电子股份有限公司 | 一种耳机噪音处理电路及耳机 |
| CN104661153B (zh) * | 2014-12-31 | 2018-02-02 | 歌尔股份有限公司 | 一种耳机音效补偿方法、装置及耳机 |
| CN108140380B (zh) * | 2015-08-20 | 2022-05-27 | 思睿逻辑国际半导体有限公司 | 具有部分地由固定响应滤波器提供的反馈响应的自适应消噪反馈控制器及方法 |
| EP3182406B1 (en) * | 2015-12-16 | 2020-04-01 | Harman Becker Automotive Systems GmbH | Sound reproduction with active noise control in a helmet |
| EP3185241B1 (en) * | 2015-12-23 | 2020-02-05 | Harman Becker Automotive Systems GmbH | Externally coupled loudspeaker system |
| US10374510B2 (en) | 2017-04-07 | 2019-08-06 | Texas Instruments Incorporated | Compensated active electro-magnetic interference filters |
| US10778089B2 (en) * | 2017-04-07 | 2020-09-15 | Texas Instruments Incorporated | Cascaded active electro-magnetic interference filter |
| CN109495082A (zh) * | 2018-12-29 | 2019-03-19 | 合肥惠科金扬科技有限公司 | 一种音频传输的多级匹配电路、方法及终端设备 |
| US11601045B2 (en) | 2019-04-01 | 2023-03-07 | Texas Instruments Incorporated | Active electromagnetic interference filter with damping network |
| US10770056B1 (en) | 2019-07-11 | 2020-09-08 | Harman Becker Automotive Systems Gmbh | Selective noise cancellation for a vehicle |
| US11330358B2 (en) * | 2020-08-21 | 2022-05-10 | Bose Corporation | Wearable audio device with inner microphone adaptive noise reduction |
| CN113409755B (zh) * | 2021-07-26 | 2023-10-31 | 北京安声浩朗科技有限公司 | 主动降噪方法、装置及主动降噪耳机 |
| KR20230040667A (ko) | 2021-09-16 | 2023-03-23 | 삼성전자주식회사 | 전력 관리 집적 회로를 포함하는 전자 장치 및 그 운용 방법 |
| CN115499747A (zh) * | 2022-09-16 | 2022-12-20 | 展讯通信（上海）有限公司 | 反馈滤波器系数确定方法、装置及电子设备 |
| CN118474630B (zh) * | 2024-07-09 | 2024-09-20 | 江西红声技术有限公司 | 一种基于高噪声环境主动降噪电路 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758798Y2 (https=) | 1978-01-25 | 1982-12-15 | ||
| JPS54110762A (en) * | 1978-02-20 | 1979-08-30 | Hiromichi Watanabe | Method of forming variable active rc filter circuit |
| JPS5840935A (ja) | 1981-09-03 | 1983-03-10 | Fujitsu Ten Ltd | 高周波同調回路 |
| US4801890A (en) | 1985-06-17 | 1989-01-31 | Dolby Ray Milton | Circuit arrangements for modifying dynamic range using variable combining techniques |
| JPH03150945A (ja) | 1989-11-07 | 1991-06-27 | Sumitomo Electric Ind Ltd | 光受信器回路 |
| AU7140591A (en) | 1989-12-28 | 1991-07-24 | Meyer Sound Laboratories Incorporated | Correction circuit and method for a two-way loudspeaker system |
| JPH03274895A (ja) * | 1990-03-24 | 1991-12-05 | Calsonic Corp | アクティブ・ノイズ・キャンセラー |
| JPH11305784A (ja) * | 1998-04-24 | 1999-11-05 | Matsushita Electric Ind Co Ltd | 騒音制御装置 |
| EP1652297A2 (en) * | 2003-07-28 | 2006-05-03 | Koninklijke Philips Electronics N.V. | Audio conditioning apparatus, method and computer program product |
| JP2005257720A (ja) * | 2004-03-09 | 2005-09-22 | Matsushita Electric Ind Co Ltd | 能動騒音制御装置 |
| JP5564743B2 (ja) | 2006-11-13 | 2014-08-06 | ソニー株式会社 | ノイズキャンセル用のフィルタ回路、ノイズ低減信号生成方法、およびノイズキャンセリングシステム |
| JP4983360B2 (ja) * | 2007-04-16 | 2012-07-25 | ヤマハ株式会社 | 音響特性補正システム |
| JP5114611B2 (ja) * | 2007-09-28 | 2013-01-09 | 株式会社ＤｉＭＡＧＩＣ Ｃｏｒｐｏｒａｔｉｏｎ | ノイズ制御システム |
| GB2456501B (en) * | 2007-11-13 | 2009-12-23 | Wolfson Microelectronics Plc | Ambient noise-reduction system |
| EP2133866B1 (en) * | 2008-06-13 | 2016-02-17 | Harman Becker Automotive Systems GmbH | Adaptive noise control system |
| JP5241921B2 (ja) * | 2008-07-29 | 2013-07-17 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 電子音響チャンネルの適応制御とイコライゼーションの方法 |
| MY151403A (en) | 2008-12-04 | 2014-05-30 | Sony Emcs Malaysia Sdn Bhd | Noise cancelling headphone |
| US8472637B2 (en) * | 2010-03-30 | 2013-06-25 | Bose Corporation | Variable ANR transform compression |
| US8345888B2 (en) | 2009-04-28 | 2013-01-01 | Bose Corporation | Digital high frequency phase compensation |
| US8737636B2 (en) * | 2009-07-10 | 2014-05-27 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation |
| US9818394B2 (en) * | 2009-11-30 | 2017-11-14 | Graeme Colin Fuller | Realisation of controller transfer function for active noise cancellation |
| JP5353748B2 (ja) * | 2010-02-18 | 2013-11-27 | 株式会社Ｊｖｃケンウッド | 雑音除去装置および雑音除去方法 |
| US8600069B2 (en) * | 2010-03-26 | 2013-12-03 | Ford Global Technologies, Llc | Multi-channel active noise control system with channel equalization |
| US9053697B2 (en) | 2010-06-01 | 2015-06-09 | Qualcomm Incorporated | Systems, methods, devices, apparatus, and computer program products for audio equalization |
| US8909524B2 (en) * | 2011-06-07 | 2014-12-09 | Analog Devices, Inc. | Adaptive active noise canceling for handset |
-
2011
- 2011-10-21 EP EP11186155.5A patent/EP2584558B1/en active Active
-
2012
- 2012-10-19 JP JP2012232034A patent/JP5792141B2/ja active Active
- 2012-10-19 US US13/656,274 patent/US9099076B2/en active Active
-
2014
- 2014-08-13 JP JP2014164679A patent/JP2015007794A/ja not_active Withdrawn
-
2015
- 2015-03-27 US US14/671,632 patent/US9734814B2/en active Active
-
2016
- 2016-07-21 JP JP2016143043A patent/JP6190501B2/ja active Active
-
2017
- 2017-08-14 US US15/676,157 patent/US10056066B2/en active Active
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