JP2012085314A5 - - Google Patents
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- JP2012085314A5 JP2012085314A5 JP2011248486A JP2011248486A JP2012085314A5 JP 2012085314 A5 JP2012085314 A5 JP 2012085314A5 JP 2011248486 A JP2011248486 A JP 2011248486A JP 2011248486 A JP2011248486 A JP 2011248486A JP 2012085314 A5 JP2012085314 A5 JP 2012085314A5
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- JP
- Japan
- Prior art keywords
- signal
- echo
- frequency domain
- filter
- frequency
- 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
Links
- 238000000034 method Methods 0.000 claims 16
- 230000003044 adaptive effect Effects 0.000 claims 8
- 230000001419 dependent effect Effects 0.000 claims 2
- 238000002592 echocardiography Methods 0.000 claims 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/200,575 US7426270B2 (en) | 2005-08-10 | 2005-08-10 | Method and system for clear signal capture |
| US11/200,575 | 2005-08-10 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008526155A Division JP5049277B2 (ja) | 2005-08-10 | 2006-08-09 | クリアな信号の取得のための方法及びシステム |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012085314A JP2012085314A (ja) | 2012-04-26 |
| JP2012085314A5 true JP2012085314A5 (enExample) | 2013-01-24 |
| JP5450567B2 JP5450567B2 (ja) | 2014-03-26 |
Family
ID=37758105
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008526155A Expired - Fee Related JP5049277B2 (ja) | 2005-08-10 | 2006-08-09 | クリアな信号の取得のための方法及びシステム |
| JP2011248486A Expired - Fee Related JP5450567B2 (ja) | 2005-08-10 | 2011-11-14 | クリアな信号の取得のための方法及びシステム |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008526155A Expired - Fee Related JP5049277B2 (ja) | 2005-08-10 | 2006-08-09 | クリアな信号の取得のための方法及びシステム |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7426270B2 (enExample) |
| EP (1) | EP1912601A4 (enExample) |
| JP (2) | JP5049277B2 (enExample) |
| WO (1) | WO2007021722A2 (enExample) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8369511B2 (en) * | 2006-12-26 | 2013-02-05 | Huawei Technologies Co., Ltd. | Robust method of echo suppressor |
| JP2008219088A (ja) * | 2007-02-28 | 2008-09-18 | Oki Electric Ind Co Ltd | エコーキャンセラ及びエコーキャンセル方法 |
| US8155304B2 (en) * | 2007-04-10 | 2012-04-10 | Microsoft Corporation | Filter bank optimization for acoustic echo cancellation |
| EP2048659B1 (en) * | 2007-10-08 | 2011-08-17 | Harman Becker Automotive Systems GmbH | Gain and spectral shape adjustment in audio signal processing |
| GB2456400B (en) * | 2008-01-21 | 2012-12-26 | Skype | Reducing echo in a signal to be transmitted in a communication system |
| US8170226B2 (en) * | 2008-06-20 | 2012-05-01 | Microsoft Corporation | Acoustic echo cancellation and adaptive filters |
| US8295474B2 (en) * | 2008-08-08 | 2012-10-23 | Freescale Semiconductor, Inc. | Echo canceller with heavy double-talk estimation |
| WO2010050841A1 (en) * | 2008-10-31 | 2010-05-06 | Lsi Corporation | Adaptive filtering with flexible selection of algorithm complexity and performance |
| US8321215B2 (en) * | 2009-11-23 | 2012-11-27 | Cambridge Silicon Radio Limited | Method and apparatus for improving intelligibility of audible speech represented by a speech signal |
| JP5493817B2 (ja) * | 2009-12-17 | 2014-05-14 | 沖電気工業株式会社 | エコーキャンセラ |
| US8509450B2 (en) | 2010-08-23 | 2013-08-13 | Cambridge Silicon Radio Limited | Dynamic audibility enhancement |
| CN103339671B (zh) * | 2011-02-03 | 2016-05-04 | 瑞典爱立信有限公司 | 谐波扬声器非线性的估计和抑制 |
| EP2512040B1 (en) | 2011-04-14 | 2013-11-13 | Alcatel Lucent | A computation saving echo canceller for a wide band audio signal |
| US8924337B2 (en) | 2011-05-09 | 2014-12-30 | Nokia Corporation | Recursive Bayesian controllers for non-linear acoustic echo cancellation and suppression systems |
| US9307321B1 (en) | 2011-06-09 | 2016-04-05 | Audience, Inc. | Speaker distortion reduction |
| US9564053B2 (en) | 2012-01-12 | 2017-02-07 | Honda Motor Co., Ltd. | Synchronized driving assist apparatus and synchronized driving assist system |
| US9065895B2 (en) * | 2012-02-22 | 2015-06-23 | Broadcom Corporation | Non-linear echo cancellation |
| US8923508B2 (en) * | 2012-06-07 | 2014-12-30 | Lsi Corporation | Half-duplex speakerphone echo canceler |
| WO2014147552A1 (en) | 2013-03-19 | 2014-09-25 | Koninklijke Philips N.V. | Method and apparatus for audio processing |
| KR101445186B1 (ko) | 2013-08-27 | 2014-10-01 | (주) 로임시스템 | 비선형 보정 반향 제거장치 |
| US9100090B2 (en) * | 2013-12-20 | 2015-08-04 | Csr Technology Inc. | Acoustic echo cancellation (AEC) for a close-coupled speaker and microphone system |
| CN104751854A (zh) * | 2013-12-26 | 2015-07-01 | 联芯科技有限公司 | 一种宽带声学回声消除方法及系统 |
| KR101501279B1 (ko) * | 2013-12-31 | 2015-03-11 | 서울대학교산학협력단 | 인접 범위 내의 시간 또는 주파수 상관관계 기반의 음향학적 스테레오 에코 제거 방법 및 시스템 |
| US9306606B2 (en) * | 2014-06-10 | 2016-04-05 | The Boeing Company | Nonlinear filtering using polyphase filter banks |
| US9254798B1 (en) * | 2014-09-24 | 2016-02-09 | General Motors Llc | Vehicle telematics unit power management |
| US9973633B2 (en) | 2014-11-17 | 2018-05-15 | At&T Intellectual Property I, L.P. | Pre-distortion system for cancellation of nonlinear distortion in mobile devices |
| US9837065B2 (en) * | 2014-12-08 | 2017-12-05 | Ford Global Technologies, Llc | Variable bandwidth delayless subband algorithm for broadband active noise control system |
| US9712866B2 (en) | 2015-04-16 | 2017-07-18 | Comigo Ltd. | Cancelling TV audio disturbance by set-top boxes in conferences |
| US10276145B2 (en) | 2017-04-24 | 2019-04-30 | Cirrus Logic, Inc. | Frequency-domain adaptive noise cancellation system |
| US11062717B2 (en) * | 2018-06-20 | 2021-07-13 | Mimi Hearing Technologies GmbH | Systems and methods for processing an audio signal for replay on an audio device |
| US11837248B2 (en) | 2019-12-18 | 2023-12-05 | Dolby Laboratories Licensing Corporation | Filter adaptation step size control for echo cancellation |
| US11336367B1 (en) * | 2021-03-12 | 2022-05-17 | Iena Corporation | Low-power pre-compensation of linear and nonlinear transmitter effects in narrow-spectrum optical signals |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8402071A (nl) * | 1984-06-29 | 1986-01-16 | Philips Nv | Datasignaalcorrectieschakeling. |
| US5631969A (en) * | 1993-03-25 | 1997-05-20 | Ericsson Inc. | System for limiting the magnitude of sampled data |
| US5644596A (en) | 1994-02-01 | 1997-07-01 | Qualcomm Incorporated | Method and apparatus for frequency selective adaptive filtering |
| US5680450A (en) | 1995-02-24 | 1997-10-21 | Ericsson Inc. | Apparatus and method for canceling acoustic echoes including non-linear distortions in loudspeaker telephones |
| US5587998A (en) * | 1995-03-03 | 1996-12-24 | At&T | Method and apparatus for reducing residual far-end echo in voice communication networks |
| ATE282924T1 (de) * | 1996-02-09 | 2004-12-15 | Texas Instruments Inc | Geräuschverminderungsanordnung |
| JP3654470B2 (ja) * | 1996-09-13 | 2005-06-02 | 日本電信電話株式会社 | サブバンド多チャネル音声通信会議用反響消去方法 |
| JP3361724B2 (ja) | 1997-06-11 | 2003-01-07 | 沖電気工業株式会社 | エコーキャンセラ装置 |
| JP3457896B2 (ja) * | 1998-10-30 | 2003-10-20 | 沖電気工業株式会社 | 反響消去装置 |
| WO2000052844A1 (de) * | 1999-03-01 | 2000-09-08 | Infineon Technologies Ag | Nichtlineare echokompensation bei dmt-systemen |
| JP2000353989A (ja) * | 1999-06-11 | 2000-12-19 | Matsushita Electric Ind Co Ltd | エコーキャンセラ |
| US6694019B1 (en) | 1999-08-26 | 2004-02-17 | Nortel Networks Limited | Method and apparatus for infinite return loss handler for network echo canceller |
| US6665402B1 (en) * | 1999-08-31 | 2003-12-16 | Nortel Networks Limited | Method and apparatus for performing echo cancellation |
| US6687235B1 (en) * | 2000-01-21 | 2004-02-03 | Adtran, Inc. | Mitigation of non-linear signal perturbations using truncated volterra-based non-linear echo canceler |
| US6813311B1 (en) * | 2000-03-14 | 2004-11-02 | Globespan Virata Corporation | Non-linear echo cancellation for wireless modems and the like |
| JP3724705B2 (ja) * | 2000-08-15 | 2005-12-07 | 日本電信電話株式会社 | 反響抑圧方法・反響抑圧装置 |
| DE10153188C2 (de) | 2001-10-27 | 2003-08-21 | Grundig Ag I Ins | Vorrichtung und Verfahren zur mehrkanaligen akustischen Echokompensation mit variabler Kanalzahl |
| CA2399159A1 (en) * | 2002-08-16 | 2004-02-16 | Dspfactory Ltd. | Convergence improvement for oversampled subband adaptive filters |
| JP4541159B2 (ja) * | 2003-01-08 | 2010-09-08 | エヌエックスピー ビー ヴィ | 非線形音響エコーキャンセラ |
| JP4041770B2 (ja) * | 2003-05-20 | 2008-01-30 | 日本電信電話株式会社 | 音響エコー消去方法、その装置、プログラム及びその記録媒体 |
| KR20060016789A (ko) * | 2003-05-27 | 2006-02-22 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 에코 제거 시스템을 가진 확성기-마이크로폰 시스템 및에코 제거 방법 |
-
2005
- 2005-08-10 US US11/200,575 patent/US7426270B2/en active Active
-
2006
- 2006-08-09 EP EP06789612A patent/EP1912601A4/en not_active Withdrawn
- 2006-08-09 WO PCT/US2006/031001 patent/WO2007021722A2/en not_active Ceased
- 2006-08-09 JP JP2008526155A patent/JP5049277B2/ja not_active Expired - Fee Related
-
2011
- 2011-11-14 JP JP2011248486A patent/JP5450567B2/ja not_active Expired - Fee Related
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