ATE543329T1 - Auf rauschumgebung basierender echokompensator - Google Patents

Auf rauschumgebung basierender echokompensator

Info

Publication number
ATE543329T1
ATE543329T1 AT08798672T AT08798672T ATE543329T1 AT E543329 T1 ATE543329 T1 AT E543329T1 AT 08798672 T AT08798672 T AT 08798672T AT 08798672 T AT08798672 T AT 08798672T AT E543329 T1 ATE543329 T1 AT E543329T1
Authority
AT
Austria
Prior art keywords
present
signal path
noise
uplink
audio
Prior art date
Application number
AT08798672T
Other languages
English (en)
Inventor
Jincheng Wu
Joel A Clark
Original Assignee
Motorola Mobility Inc
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 Motorola Mobility Inc filed Critical Motorola Mobility Inc
Application granted granted Critical
Publication of ATE543329T1 publication Critical patent/ATE543329T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
AT08798672T 2007-08-31 2008-08-26 Auf rauschumgebung basierender echokompensator ATE543329T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/848,376 US7809129B2 (en) 2007-08-31 2007-08-31 Acoustic echo cancellation based on noise environment
PCT/US2008/074281 WO2009029605A1 (en) 2007-08-31 2008-08-26 Acoustic echo cancellation based on noise environment

Publications (1)

Publication Number Publication Date
ATE543329T1 true ATE543329T1 (de) 2012-02-15

Family

ID=39798119

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08798672T ATE543329T1 (de) 2007-08-31 2008-08-26 Auf rauschumgebung basierender echokompensator

Country Status (9)

Country Link
US (1) US7809129B2 (de)
EP (1) EP2186312B1 (de)
KR (1) KR101520123B1 (de)
CN (1) CN101785290B (de)
AT (1) ATE543329T1 (de)
BR (1) BRPI0816218A8 (de)
MX (1) MX2010002172A (de)
RU (1) RU2464723C2 (de)
WO (1) WO2009029605A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7809129B2 (en) * 2007-08-31 2010-10-05 Motorola, Inc. Acoustic echo cancellation based on noise environment
WO2009047858A1 (ja) * 2007-10-12 2009-04-16 Fujitsu Limited エコー抑圧システム、エコー抑圧方法、エコー抑圧プログラム、エコー抑圧装置、音出力装置、オーディオシステム、ナビゲーションシステム及び移動体
US8170229B2 (en) * 2007-11-06 2012-05-01 James Carl Kesterson Audio privacy apparatus and method
DE102008011285A1 (de) * 2007-12-21 2009-06-25 Airbus Deutschland Gmbh Aktiver Schallblocker
TW200826062A (en) * 2008-01-15 2008-06-16 Asia Vital Components Co Ltd System of inhibiting broadband noise of communication equipment room
US7936698B1 (en) * 2008-05-13 2011-05-03 Sprint Spectrum L.P. System and method for reducing reverse noise rise in wireless communications
US8660676B2 (en) * 2009-10-16 2014-02-25 Microsoft Corporation Mitigating the impact of nonlinear echos by dynamic range compression
WO2011115836A2 (en) * 2010-03-15 2011-09-22 National Acquisition Sub, Inc. Configurable electronic device reprogrammable to modify the device frequency response
CN101958122B (zh) * 2010-09-19 2013-01-09 杭州华三通信技术有限公司 一种回声消除的方法和装置
CN102065190B (zh) * 2010-12-31 2013-08-28 杭州华三通信技术有限公司 一种回声消除方法及其装置
CN103391381B (zh) 2012-05-10 2015-05-20 中兴通讯股份有限公司 回声消除方法及装置
US20130332155A1 (en) * 2012-06-06 2013-12-12 Microsoft Corporation Double-Talk Detection for Audio Communication
GB2515592B (en) * 2013-12-23 2016-11-30 Imagination Tech Ltd Echo path change detector
JP6295722B2 (ja) * 2014-02-28 2018-03-20 沖電気工業株式会社 エコー抑圧装置、プログラム及び方法
CN104835502B (zh) * 2015-05-20 2018-04-10 北京捷思锐科技股份有限公司 音频信号处理方法、装置及电子设备
KR20170032603A (ko) 2015-09-15 2017-03-23 삼성전자주식회사 전자 장치, 그의 반향 신호 제거 방법 및 비일시적 컴퓨터 판독가능 기록매체
EP3414889B1 (de) * 2016-06-30 2019-12-04 Google LLC Doppel-magnituden-verarbeitungsrahmen für nichtlineare echokompensation in mobilen vorrichtungen
US10117021B1 (en) * 2017-03-31 2018-10-30 Polycom, Inc. Audio feedback reduction utilizing adaptive filters and nonlinear processing
JP6833616B2 (ja) * 2017-05-29 2021-02-24 株式会社トランストロン エコー抑圧装置、エコー抑圧方法及びエコー抑圧プログラム

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645883A (en) * 1984-05-09 1987-02-24 Communications Satellite Corporation Double talk and line noise detector for a echo canceller
DE3840433A1 (de) * 1988-12-01 1990-06-07 Philips Patentverwaltung Echokompensator
US5001701A (en) * 1989-08-07 1991-03-19 At&T Bell Laboratories Subband echo canceler including real time allocation among the subbands
US5157653A (en) * 1990-08-03 1992-10-20 Coherent Communications Systems Corp. Residual echo elimination with proportionate noise injection
JP2853455B2 (ja) * 1992-05-15 1999-02-03 ケイディディ株式会社 エコーキャンセラ
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US5668871A (en) * 1994-04-29 1997-09-16 Motorola, Inc. Audio signal processor and method therefor for substantially reducing audio feedback in a cummunication unit
US5835851A (en) * 1995-01-19 1998-11-10 Ericsson Inc. Method and apparatus for echo reduction in a hands-free cellular radio using added noise frames
FI110826B (fi) * 1995-06-08 2003-03-31 Nokia Corp Akustisen kaiun poisto digitaalisessa matkaviestinjärjestelmässä
US5659622A (en) * 1995-11-13 1997-08-19 Motorola, Inc. Method and apparatus for suppressing noise in a communication system
US5937060A (en) * 1996-02-09 1999-08-10 Texas Instruments Incorporated Residual echo suppression
US5771440A (en) * 1996-05-31 1998-06-23 Motorola, Inc. Communication device with dynamic echo suppression and background noise estimation
US5796819A (en) * 1996-07-24 1998-08-18 Ericsson Inc. Echo canceller for non-linear circuits
US6160886A (en) * 1996-12-31 2000-12-12 Ericsson Inc. Methods and apparatus for improved echo suppression in communications systems
US6185300B1 (en) * 1996-12-31 2001-02-06 Ericsson Inc. Echo canceler for use in communications system
FI105864B (fi) * 1997-04-18 2000-10-13 Nokia Networks Oy Kaiunpoistomekanismi
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
US6163608A (en) * 1998-01-09 2000-12-19 Ericsson Inc. Methods and apparatus for providing comfort noise in communications systems
US6148078A (en) * 1998-01-09 2000-11-14 Ericsson Inc. Methods and apparatus for controlling echo suppression in communications systems
JP3267556B2 (ja) * 1998-02-18 2002-03-18 沖電気工業株式会社 エコー除去装置および送話器
US6282176B1 (en) * 1998-03-20 2001-08-28 Cirrus Logic, Inc. Full-duplex speakerphone circuit including a supplementary echo suppressor
US6434110B1 (en) * 1998-03-20 2002-08-13 Cirrus Logic, Inc. Full-duplex speakerphone circuit including a double-talk detector
RU2147791C1 (ru) * 1998-08-17 2000-04-20 Пензенский научно-исследовательский электротехнический институт Дуплексный модем
JP3385221B2 (ja) * 1998-11-16 2003-03-10 沖電気工業株式会社 エコーキャンセラ
US6415029B1 (en) * 1999-05-24 2002-07-02 Motorola, Inc. Echo canceler and double-talk detector for use in a communications unit
US6480610B1 (en) * 1999-09-21 2002-11-12 Sonic Innovations, Inc. Subband acoustic feedback cancellation in hearing aids
US6580795B1 (en) * 1999-10-14 2003-06-17 Motorola, Inc. Echo canceller for a full-duplex communication system and method therefor
US6522746B1 (en) * 1999-11-03 2003-02-18 Tellabs Operations, Inc. Synchronization of voice boundaries and their use by echo cancellers in a voice processing system
US6799062B1 (en) * 2000-10-19 2004-09-28 Motorola Inc. Full-duplex hands-free transparency circuit and method therefor
US6792107B2 (en) * 2001-01-26 2004-09-14 Lucent Technologies Inc. Double-talk detector suitable for a telephone-enabled PC
US7221659B1 (en) * 2001-12-31 2007-05-22 Cisco Technology, Inc. Method and system for managing erroneous attenuation of signal
US7155018B1 (en) * 2002-04-16 2006-12-26 Microsoft Corporation System and method facilitating acoustic echo cancellation convergence detection
US7283585B2 (en) * 2002-09-27 2007-10-16 Broadcom Corporation Multiple data rate communication system
JP3922997B2 (ja) * 2002-10-30 2007-05-30 沖電気工業株式会社 エコーキャンセラ
US7099458B2 (en) * 2003-12-12 2006-08-29 Motorola, Inc. Downlink activity and double talk probability detector and method for an echo canceler circuit
US7680265B2 (en) * 2003-12-12 2010-03-16 Continental Automotive Systems, Inc. Echo canceler circuit and method
US7643630B2 (en) * 2004-06-25 2010-01-05 Texas Instruments Incorporated Echo suppression with increment/decrement, quick, and time-delay counter updating
US7577248B2 (en) * 2004-06-25 2009-08-18 Texas Instruments Incorporated Method and apparatus for echo cancellation, digit filter adaptation, automatic gain control and echo suppression utilizing block least mean squares
US8761385B2 (en) * 2004-11-08 2014-06-24 Nec Corporation Signal processing method, signal processing device, and signal processing program
US7787613B2 (en) * 2005-11-18 2010-08-31 Motorola, Inc. Method and apparatus for double-talk detection in a hands-free communication system
CN101322323B (zh) * 2005-12-05 2013-01-23 艾利森电话股份有限公司 回声检测方法和装置
JP4456622B2 (ja) * 2007-07-25 2010-04-28 沖電気工業株式会社 ダブルトーク検出器、ダブルトーク検出方法及びエコーキャンセラ
US8374851B2 (en) * 2007-07-30 2013-02-12 Texas Instruments Incorporated Voice activity detector and method
US7809129B2 (en) * 2007-08-31 2010-10-05 Motorola, Inc. Acoustic echo cancellation based on noise environment

Also Published As

Publication number Publication date
MX2010002172A (es) 2010-03-18
KR101520123B1 (ko) 2015-05-13
US7809129B2 (en) 2010-10-05
RU2464723C2 (ru) 2012-10-20
EP2186312B1 (de) 2012-01-25
EP2186312A1 (de) 2010-05-19
CN101785290A (zh) 2010-07-21
WO2009029605A1 (en) 2009-03-05
US20090059821A1 (en) 2009-03-05
KR20100057019A (ko) 2010-05-28
BRPI0816218A2 (pt) 2015-06-16
CN101785290B (zh) 2013-01-16
BRPI0816218A8 (pt) 2015-12-01
RU2010112419A (ru) 2011-10-10

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