WO2005060583A3 - A double talk activity detector and method for an echo canceler circuit - Google Patents

A double talk activity detector and method for an echo canceler circuit Download PDF

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Publication number
WO2005060583A3
WO2005060583A3 PCT/US2004/040807 US2004040807W WO2005060583A3 WO 2005060583 A3 WO2005060583 A3 WO 2005060583A3 US 2004040807 W US2004040807 W US 2004040807W WO 2005060583 A3 WO2005060583 A3 WO 2005060583A3
Authority
WO
WIPO (PCT)
Prior art keywords
double talk
echo canceler
talk activity
data
activity detector
Prior art date
Application number
PCT/US2004/040807
Other languages
French (fr)
Other versions
WO2005060583A2 (en
Inventor
James B Piket
Keith L Owens
Christopher W Springfield
Original Assignee
Motorola Inc
James B Piket
Keith L Owens
Christopher W Springfield
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 Inc, James B Piket, Keith L Owens, Christopher W Springfield filed Critical Motorola Inc
Priority to MXPA06006639A priority Critical patent/MXPA06006639A/en
Priority to CA002546535A priority patent/CA2546535C/en
Priority to JP2006543915A priority patent/JP2007519316A/en
Priority to EP04813167A priority patent/EP1697192A4/en
Publication of WO2005060583A2 publication Critical patent/WO2005060583A2/en
Publication of WO2005060583A3 publication Critical patent/WO2005060583A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Abstract

A double talk activity detector (30) and method for an echo canceler circuit (10) improves the probability of detecting a double talk condition based on at least pre-echo canceler uplink data (40). The echo canceler circuit (10) includes a double talk activity probability data generator (30) and an echo canceler stage (20). The double talk activity probability data generator (30) receives pre-echo canceler uplink data (40) and in response produces double talk activity probability data (50). The echo canceler stage (20) is coupled to the double talk activity probability data generator (30) and receives downlink data (60), pre-echo canceler uplink data (40) and the double talk activity probability data (50) and in response produces attenuated uplink data (70).
PCT/US2004/040807 2003-12-12 2004-12-07 A double talk activity detector and method for an echo canceler circuit WO2005060583A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MXPA06006639A MXPA06006639A (en) 2003-12-12 2004-12-07 A double talk activity detector and method for an echo canceler circuit.
CA002546535A CA2546535C (en) 2003-12-12 2004-12-07 A double talk activity detector and method for an echo canceler circuit
JP2006543915A JP2007519316A (en) 2003-12-12 2004-12-07 Double talk activity detector and method for echo canceller circuit
EP04813167A EP1697192A4 (en) 2003-12-12 2004-12-07 A double talk activity detector and method for an echo canceler circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/735,300 2003-12-12
US10/735,300 US7046794B2 (en) 2003-12-12 2003-12-12 Double talk activity detector and method for an echo canceler circuit

Publications (2)

Publication Number Publication Date
WO2005060583A2 WO2005060583A2 (en) 2005-07-07
WO2005060583A3 true WO2005060583A3 (en) 2006-01-05

Family

ID=34653580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/040807 WO2005060583A2 (en) 2003-12-12 2004-12-07 A double talk activity detector and method for an echo canceler circuit

Country Status (8)

Country Link
US (1) US7046794B2 (en)
EP (1) EP1697192A4 (en)
JP (1) JP2007519316A (en)
KR (1) KR100790770B1 (en)
CN (1) CN1890948A (en)
CA (1) CA2546535C (en)
MX (1) MXPA06006639A (en)
WO (1) WO2005060583A2 (en)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7149514B1 (en) 1997-07-30 2006-12-12 Bellsouth Intellectual Property Corp. Cellular docking station
US20080207197A1 (en) 1997-07-30 2008-08-28 Steven Tischer Apparatus, method, and computer-readable medium for interfacing devices with communications networks
US6411802B1 (en) * 1999-03-15 2002-06-25 Bellsouth Intellectual Property Management Corporation Wireless backup telephone device
US7120454B1 (en) * 2001-12-26 2006-10-10 Bellsouth Intellectual Property Corp. Auto sensing home base station for mobile telephone with remote answering capabilites
US8416804B2 (en) 2002-07-15 2013-04-09 At&T Intellectual Property I, L.P. Apparatus and method for providing a user interface for facilitating communications between devices
US7200424B2 (en) 2002-07-15 2007-04-03 Bellsouth Intelectual Property Corporation Systems and methods for restricting the use and movement of telephony devices
US8543098B2 (en) 2002-07-15 2013-09-24 At&T Intellectual Property I, L.P. Apparatus and method for securely providing communications between devices and networks
US8526466B2 (en) 2002-07-15 2013-09-03 At&T Intellectual Property I, L.P. Apparatus and method for prioritizing communications between devices
US8275371B2 (en) 2002-07-15 2012-09-25 At&T Intellectual Property I, L.P. Apparatus and method for providing communications and connection-oriented services to devices
US8000682B2 (en) 2002-07-15 2011-08-16 At&T Intellectual Property I, L.P. Apparatus and method for restricting access to data
US8554187B2 (en) 2002-07-15 2013-10-08 At&T Intellectual Property I, L.P. Apparatus and method for routing communications between networks and devices
US7599483B2 (en) * 2003-12-12 2009-10-06 Temic Automotive Of North America, Inc. Echo canceler circuit and method
US7680265B2 (en) * 2003-12-12 2010-03-16 Continental Automotive Systems, Inc. Echo canceler circuit and method
JP4562402B2 (en) * 2004-02-20 2010-10-13 アルパイン株式会社 Asynchronous communication system for voice data and communication method therefor
US7433463B2 (en) * 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
JP4438720B2 (en) * 2005-08-17 2010-03-24 ソニー株式会社 Echo canceller and microphone device
KR100737404B1 (en) * 2005-12-30 2007-07-09 한국표준과학연구원 Multi-purpose terminal device for communicating under noise surroundings
US8654955B1 (en) 2007-03-14 2014-02-18 Clearone Communications, Inc. Portable conferencing device with videoconferencing option
US8406415B1 (en) 2007-03-14 2013-03-26 Clearone Communications, Inc. Privacy modes in an open-air multi-port conferencing device
US8019076B1 (en) 2007-03-14 2011-09-13 Clearone Communications, Inc. Portable speakerphone device and subsystem utilizing false doubletalk detection
US7912211B1 (en) 2007-03-14 2011-03-22 Clearone Communications, Inc. Portable speakerphone device and subsystem
US8077857B1 (en) 2007-03-14 2011-12-13 Clearone Communications, Inc. Portable speakerphone device with selective mixing
US7983428B2 (en) * 2007-05-09 2011-07-19 Motorola Mobility, Inc. Noise reduction on wireless headset input via dual channel calibration within mobile phone
US8391472B2 (en) * 2007-06-06 2013-03-05 Dreamworks Animation Llc Acoustic echo cancellation solution for video conferencing
US7881459B2 (en) * 2007-08-15 2011-02-01 Motorola, Inc. Acoustic echo canceller using multi-band nonlinear processing
DE112007003625T5 (en) * 2007-08-24 2010-07-15 Fujitsu Ltd., Kawasaki Echo cancellation device, echo cancellation system, echo cancellation method and computer program
US20090067616A1 (en) * 2007-09-07 2009-03-12 Kerby William Suhre CAN echo cancellation level shifter
US8199927B1 (en) 2007-10-31 2012-06-12 ClearOnce Communications, Inc. Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
US8050398B1 (en) 2007-10-31 2011-11-01 Clearone Communications, Inc. Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
US8290142B1 (en) 2007-11-12 2012-10-16 Clearone Communications, Inc. Echo cancellation in a portable conferencing device with externally-produced audio
US8238548B2 (en) * 2008-02-08 2012-08-07 Cisco Technology, Inc. Controlling echo during double-talk in a voice conference
KR20100039622A (en) * 2008-10-08 2010-04-16 삼성전자주식회사 Apparatus and method for providing digital broadcasting service information in portable communication system
US8498407B2 (en) * 2008-12-02 2013-07-30 Qualcomm Incorporated Systems and methods for double-talk detection in acoustically harsh environments
CN102137194B (en) * 2010-01-21 2014-01-01 华为终端有限公司 Call detection method and device
US8811601B2 (en) 2011-04-04 2014-08-19 Qualcomm Incorporated Integrated echo cancellation and noise suppression
EP2632141B1 (en) * 2012-02-22 2014-10-15 Dialog Semiconductor B.V. Postfilter for Spectral Domain Echo Cancellers to handle Non-linear Echo Components
CN103533193B (en) * 2012-07-04 2016-07-06 中兴通讯股份有限公司 Residual echo elimination method and device
US9269368B2 (en) * 2013-03-15 2016-02-23 Broadcom Corporation Speaker-identification-assisted uplink speech processing systems and methods
JP6435613B2 (en) * 2014-03-04 2018-12-12 沖電気工業株式会社 Talk state detector, talk state detection method, echo canceller and echo suppressor, and talk state detection program
US10291597B2 (en) 2014-08-14 2019-05-14 Cisco Technology, Inc. Sharing resources across multiple devices in online meetings
US10542126B2 (en) 2014-12-22 2020-01-21 Cisco Technology, Inc. Offline virtual participation in an online conference meeting
US9712866B2 (en) 2015-04-16 2017-07-18 Comigo Ltd. Cancelling TV audio disturbance by set-top boxes in conferences
US9948786B2 (en) 2015-04-17 2018-04-17 Cisco Technology, Inc. Handling conferences using highly-distributed agents
US10123141B2 (en) 2015-11-13 2018-11-06 Bose Corporation Double-talk detection for acoustic echo cancellation
US10129408B1 (en) * 2016-10-11 2018-11-13 Google Llc Residual echo detection based on non-causality
US10592867B2 (en) 2016-11-11 2020-03-17 Cisco Technology, Inc. In-meeting graphical user interface display using calendar information and system
US10516707B2 (en) 2016-12-15 2019-12-24 Cisco Technology, Inc. Initiating a conferencing meeting using a conference room device
US10440073B2 (en) 2017-04-11 2019-10-08 Cisco Technology, Inc. User interface for proximity based teleconference transfer
US10375125B2 (en) 2017-04-27 2019-08-06 Cisco Technology, Inc. Automatically joining devices to a video conference
US10388298B1 (en) * 2017-05-03 2019-08-20 Amazon Technologies, Inc. Methods for detecting double talk
US10375474B2 (en) 2017-06-12 2019-08-06 Cisco Technology, Inc. Hybrid horn microphone
US10477148B2 (en) 2017-06-23 2019-11-12 Cisco Technology, Inc. Speaker anticipation
US10516709B2 (en) 2017-06-29 2019-12-24 Cisco Technology, Inc. Files automatically shared at conference initiation
US10706391B2 (en) 2017-07-13 2020-07-07 Cisco Technology, Inc. Protecting scheduled meeting in physical room
US10091348B1 (en) 2017-07-25 2018-10-02 Cisco Technology, Inc. Predictive model for voice/video over IP calls
US10771621B2 (en) 2017-10-31 2020-09-08 Cisco Technology, Inc. Acoustic echo cancellation based sub band domain active speaker detection for audio and video conferencing applications
US10602270B1 (en) * 2018-11-30 2020-03-24 Microsoft Technology Licensing, Llc Similarity measure assisted adaptation control
CN109862200B (en) * 2019-02-22 2021-02-12 北京达佳互联信息技术有限公司 Voice processing method and device, electronic equipment and storage medium
KR102266780B1 (en) 2019-07-04 2021-06-18 한양대학교 산학협력단 Method and apparatus for reducing speech distortion by mitigating clipping phenomenon and using correlation between microphone input signal, error signal, and far end signal occurring in a voice communication environment
KR20220017080A (en) * 2020-08-04 2022-02-11 삼성전자주식회사 Method for processing voice signal and apparatus using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274705A (en) * 1991-09-24 1993-12-28 Tellabs Inc. Nonlinear processor for an echo canceller and method
US6718035B2 (en) * 1997-11-14 2004-04-06 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having split adaptive gain settings
US6868158B2 (en) * 2001-05-22 2005-03-15 Mitsubishi Denki Kabushiki Kaisha Echo processing apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07121027B2 (en) * 1988-02-03 1995-12-20 株式会社日立製作所 Loud phone
JPH03179931A (en) * 1989-12-08 1991-08-05 Nec Corp Bidirectional speech state judging system
JPH04271622A (en) * 1991-02-27 1992-09-28 Nec Corp Echo canceller
JP2836277B2 (en) * 1991-03-14 1998-12-14 国際電信電話株式会社 Echo cancellation device
US5268834A (en) 1991-06-24 1993-12-07 Massachusetts Institute Of Technology Stable adaptive neural network controller
JPH0766756A (en) * 1993-08-30 1995-03-10 Kyocera Corp Acoustic echo canceler
FR2738695B1 (en) * 1995-09-13 1997-11-14 France Telecom ADAPTIVE IDENTIFICATION METHOD AND DEVICE AND ADAPTIVE ECHO CANCELER INCLUDING SUCH A DEVICE
US5734715A (en) * 1995-09-13 1998-03-31 France Telecom Process and device for adaptive identification and adaptive echo canceller relating thereto
FR2748184B1 (en) * 1996-04-26 1998-07-17 France Telecom ECHO CANCELLATION METHOD AND DEVICE
SE505692C2 (en) 1995-12-18 1997-09-29 Ericsson Telefon Ab L M Method and apparatus for echo extinguishing by estimating residual signal power
US6148078A (en) * 1998-01-09 2000-11-14 Ericsson Inc. Methods and apparatus for controlling echo suppression in communications systems
US6532454B1 (en) 1998-09-24 2003-03-11 Paul J. Werbos Stable adaptive control using critic designs
JP3979169B2 (en) * 2002-04-26 2007-09-19 松下電工株式会社 Echo canceller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274705A (en) * 1991-09-24 1993-12-28 Tellabs Inc. Nonlinear processor for an echo canceller and method
US6718035B2 (en) * 1997-11-14 2004-04-06 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having split adaptive gain settings
US6868158B2 (en) * 2001-05-22 2005-03-15 Mitsubishi Denki Kabushiki Kaisha Echo processing apparatus

Also Published As

Publication number Publication date
KR20060100464A (en) 2006-09-20
US7046794B2 (en) 2006-05-16
KR100790770B1 (en) 2008-01-03
EP1697192A2 (en) 2006-09-06
US20050129225A1 (en) 2005-06-16
EP1697192A4 (en) 2008-08-06
CA2546535C (en) 2009-09-15
MXPA06006639A (en) 2006-08-31
WO2005060583A2 (en) 2005-07-07
JP2007519316A (en) 2007-07-12
CN1890948A (en) 2007-01-03
CA2546535A1 (en) 2005-07-07

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