JP2016506673A5 - - Google Patents

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Publication number
JP2016506673A5
JP2016506673A5 JP2015549851A JP2015549851A JP2016506673A5 JP 2016506673 A5 JP2016506673 A5 JP 2016506673A5 JP 2015549851 A JP2015549851 A JP 2015549851A JP 2015549851 A JP2015549851 A JP 2015549851A JP 2016506673 A5 JP2016506673 A5 JP 2016506673A5
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JP
Japan
Prior art keywords
audio signal
echo
power
received audio
output
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JP2015549851A
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English (en)
Japanese (ja)
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JP2016506673A (ja
JP6422885B2 (ja
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Priority claimed from GB1223241.9A external-priority patent/GB2512022A/en
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Publication of JP2016506673A publication Critical patent/JP2016506673A/ja
Publication of JP2016506673A5 publication Critical patent/JP2016506673A5/ja
Application granted granted Critical
Publication of JP6422885B2 publication Critical patent/JP6422885B2/ja
Active legal-status Critical Current
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JP2015549851A 2012-12-21 2013-12-21 エコー抑圧 Active JP6422885B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1223241.9 2012-12-21
GB1223241.9A GB2512022A (en) 2012-12-21 2012-12-21 Echo suppression
US13/784,715 US9167342B2 (en) 2012-12-21 2013-03-04 Echo suppression
US13/784,715 2013-03-04
PCT/US2013/077354 WO2014100793A1 (en) 2012-12-21 2013-12-21 Echo suppression

Publications (3)

Publication Number Publication Date
JP2016506673A JP2016506673A (ja) 2016-03-03
JP2016506673A5 true JP2016506673A5 (enExample) 2017-01-12
JP6422885B2 JP6422885B2 (ja) 2018-11-14

Family

ID=47682460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015549851A Active JP6422885B2 (ja) 2012-12-21 2013-12-21 エコー抑圧

Country Status (7)

Country Link
US (1) US9167342B2 (enExample)
EP (1) EP2920949B1 (enExample)
JP (1) JP6422885B2 (enExample)
KR (1) KR102169993B1 (enExample)
CN (1) CN105027540B (enExample)
GB (1) GB2512022A (enExample)
WO (1) WO2014100793A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
US9319532B2 (en) * 2013-08-15 2016-04-19 Cisco Technology, Inc. Acoustic echo cancellation for audio system with bring your own devices (BYOD)
US10811027B2 (en) * 2016-06-08 2020-10-20 Dolby Laboratories Licensing Corporation Echo estimation and management with adaptation of sparse prediction filter set
US10816584B2 (en) * 2017-12-04 2020-10-27 Ets-Lindgren, Inc. Spectrum extension edgeless gating for reduced time domain gating edge errors
EP4199368B1 (en) 2020-08-12 2025-08-20 Auzdsp Co., Ltd. Adaptive delay diversity filter and method using same
KR102218742B1 (ko) * 2020-08-12 2021-02-22 (주)오즈디에스피 적응형 지연 다이버시티 필터와, 이를 이용하는 에코 제거 장치 및 방법
CN113178203B (zh) * 2021-04-23 2022-11-04 歌尔股份有限公司 一种回声消除方法、系统、音频设备及可读存储介质

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328139A1 (de) * 1993-08-21 1995-02-23 Philips Patentverwaltung Schaltungsanordnung zur Echoauslöschung
US5473686A (en) * 1994-02-01 1995-12-05 Tandy Corporation Echo cancellation apparatus
SE511073C2 (sv) 1997-09-10 1999-08-02 Ericsson Telefon Ab L M Sätt och anordning för ekoestimering och undertryckning i telefonsystem
US6256383B1 (en) 1997-11-07 2001-07-03 Legerity, Inc. IIR filter of adaptive balance circuit for long tail echo cancellation
US6570985B1 (en) 1998-01-09 2003-05-27 Ericsson Inc. Echo canceler adaptive filter optimization
US7423983B1 (en) * 1999-09-20 2008-09-09 Broadcom Corporation Voice and data exchange over a packet based network
US6549587B1 (en) 1999-09-20 2003-04-15 Broadcom Corporation Voice and data exchange over a packet based network with timing recovery
JP3566158B2 (ja) 1999-12-07 2004-09-15 三菱電機株式会社 エコーキャンセラ装置
US7672447B1 (en) 2000-06-01 2010-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Frequency domain echo canceller
US7046658B1 (en) 2000-06-23 2006-05-16 At & T Corp. Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)
US7068780B1 (en) 2000-08-30 2006-06-27 Conexant, Inc. Hybrid echo canceller
JP4568439B2 (ja) 2001-01-22 2010-10-27 パナソニック株式会社 エコー抑圧装置
US6785382B2 (en) * 2001-02-12 2004-08-31 Signalworks, Inc. System and method for controlling a filter to enhance speakerphone performance
WO2002093774A1 (en) * 2001-05-17 2002-11-21 Stmicroelectronics Asia Pacific Pte Ltd Echo canceller and a method of cancelling echo
US6950842B2 (en) * 2002-01-23 2005-09-27 Analog Devices, Inc. Echo canceller having an adaptive filter with a dynamically adjustable step size
US6914978B2 (en) 2002-08-16 2005-07-05 Ambit Microsystems Corp. Pulse dialing system for VoIP modem
US7082123B2 (en) 2002-08-21 2006-07-25 Ambit Microsystems Corp. Silent redial system for VoIP modem
US7062040B2 (en) 2002-09-20 2006-06-13 Agere Systems Inc. Suppression of echo signals and the like
US7027591B2 (en) 2002-10-16 2006-04-11 Ericsson Inc. Integrated noise cancellation and residual echo suppression
US7162420B2 (en) * 2002-12-10 2007-01-09 Liberato Technologies, Llc System and method for noise reduction having first and second adaptive filters
WO2004064365A1 (en) * 2003-01-08 2004-07-29 Philips Intellectual Property & Standards Gmbh Device and method for suppressing echo, in particular in telephones
US6947549B2 (en) 2003-02-19 2005-09-20 The Hong Kong Polytechnic University Echo canceller
US7099458B2 (en) * 2003-12-12 2006-08-29 Motorola, Inc. Downlink activity and double talk probability detector and method for an echo canceler circuit
ATE464738T1 (de) 2004-10-13 2010-04-15 Koninkl Philips Electronics Nv Echolöschung
US7894598B2 (en) * 2004-12-14 2011-02-22 Nuance Communications, Inc. System for limiting receive audio
JP2007235874A (ja) * 2006-03-03 2007-09-13 Sanyo Electric Co Ltd エコー抑制装置及びエコー抑制方法
EP1855456B1 (en) 2006-05-08 2009-10-14 Harman/Becker Automotive Systems GmbH Echo reduction in time-variant systems
EP1879293B1 (en) * 2006-07-10 2019-02-20 Harman Becker Automotive Systems GmbH Partitioned fast convolution in the time and frequency domain
US7983373B2 (en) * 2007-02-07 2011-07-19 Vintomie Networks B.V., Llc Clock distribution for 10GBase-T analog front end
JP4978352B2 (ja) * 2007-07-11 2012-07-18 ヤマハ株式会社 エコーキャンセラ
US8374851B2 (en) 2007-07-30 2013-02-12 Texas Instruments Incorporated Voice activity detector and method
ATE521064T1 (de) 2007-10-08 2011-09-15 Harman Becker Automotive Sys Verstärkung und spektralformenanpassung bei der verarbeitung von audiosignalen
US8275139B2 (en) * 2008-03-26 2012-09-25 Ittiam Systems (P) Ltd. Linear full duplex system and method for acoustic echo cancellation
JP5125690B2 (ja) * 2008-03-31 2013-01-23 ヤマハ株式会社 音響エコー除去装置
US8634569B2 (en) 2010-01-08 2014-01-21 Conexant Systems, Inc. Systems and methods for echo cancellation and echo suppression
NO332437B1 (no) * 2010-01-18 2012-09-17 Cisco Systems Int Sarl Apparat og fremgangsmate for a supprimere et akustisk ekko
US9185233B2 (en) 2010-05-25 2015-11-10 Intel Deutschland Gmbh Audio communication device and method using fixed echo cancellation filter coefficients
US9420390B2 (en) 2011-02-03 2016-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Estimation and suppression of harmonic loudspeaker nonlinearities
US8804977B2 (en) 2011-03-18 2014-08-12 Dolby Laboratories Licensing Corporation Nonlinear reference signal processing for echo suppression
CN202340252U (zh) * 2011-11-18 2012-07-18 镁思锑科技（杭州）有限公司 具有回声和噪声消除功能的矿用通信手机
US9065895B2 (en) 2012-02-22 2015-06-23 Broadcom Corporation Non-linear echo cancellation
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate

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