ATE433253T1 - Echokompensator mit verringertem verarbeitungsleistungsverbrauch - Google Patents

Echokompensator mit verringertem verarbeitungsleistungsverbrauch

Info

Publication number
ATE433253T1
ATE433253T1 AT03770158T AT03770158T ATE433253T1 AT E433253 T1 ATE433253 T1 AT E433253T1 AT 03770158 T AT03770158 T AT 03770158T AT 03770158 T AT03770158 T AT 03770158T AT E433253 T1 ATE433253 T1 AT E433253T1
Authority
AT
Austria
Prior art keywords
filter
signal
echo
near end
sound
Prior art date
Application number
AT03770158T
Other languages
English (en)
Inventor
Trygve Marton
Ingvar Aarnes
Original Assignee
Tandberg Telecom As
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 Tandberg Telecom As filed Critical Tandberg Telecom As
Application granted granted Critical
Publication of ATE433253T1 publication Critical patent/ATE433253T1/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)
  • Electrotherapy Devices (AREA)
  • Telephonic Communication Services (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Electrophonic Musical Instruments (AREA)
AT03770158T 2003-03-10 2003-11-11 Echokompensator mit verringertem verarbeitungsleistungsverbrauch ATE433253T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20031103A NO318401B1 (no) 2003-03-10 2003-03-10 Et audio-ekkokanselleringssystem og en fremgangsmate for a tilveiebringe et ekkodempet utgangssignal fra et ekkotillagt signal
PCT/NO2003/000379 WO2004082249A1 (en) 2003-03-10 2003-11-11 Echo canceller with reduced requirement for processing power

Publications (1)

Publication Number Publication Date
ATE433253T1 true ATE433253T1 (de) 2009-06-15

Family

ID=19914556

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03770158T ATE433253T1 (de) 2003-03-10 2003-11-11 Echokompensator mit verringertem verarbeitungsleistungsverbrauch

Country Status (10)

Country Link
US (1) US7010119B2 (de)
EP (1) EP1602223B1 (de)
JP (1) JP2006514492A (de)
CN (1) CN100521710C (de)
AT (1) ATE433253T1 (de)
AU (1) AU2003278623A1 (de)
DE (1) DE60327895D1 (de)
ES (1) ES2328032T3 (de)
NO (1) NO318401B1 (de)
WO (1) WO2004082249A1 (de)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433463B2 (en) * 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
NO328256B1 (no) * 2004-12-29 2010-01-18 Tandberg Telecom As Audiosystem
NO324318B1 (no) * 2005-04-29 2007-09-24 Tandberg Telecom As Fremgangsmate og anordning for stoydeteksjon.
TW200735624A (en) * 2006-01-27 2007-09-16 Mediatek Inc Method and apparatus for echo cancellation
CN101496387B (zh) 2006-03-06 2012-09-05 思科技术公司 用于移动无线网络中的接入认证的系统和方法
US7783478B2 (en) * 2007-01-03 2010-08-24 Alexander Goldin Two stage frequency subband decomposition
EP2018034B1 (de) * 2007-07-16 2011-11-02 Nuance Communications, Inc. Verfahren und System zur Verarbeitung von Tonsignalen in einem Multimediasystem eines Fahrzeugs
ES2398597T3 (es) * 2007-11-29 2013-03-20 Telefonaktiebolaget Lm Ericsson (Publ) Un método y una disposición para cancelación de eco de señales de voz
US8744069B2 (en) * 2007-12-10 2014-06-03 Microsoft Corporation Removing near-end frequencies from far-end sound
US8433061B2 (en) * 2007-12-10 2013-04-30 Microsoft Corporation Reducing echo
US8219387B2 (en) * 2007-12-10 2012-07-10 Microsoft Corporation Identifying far-end sound
US8355041B2 (en) 2008-02-14 2013-01-15 Cisco Technology, Inc. Telepresence system for 360 degree video conferencing
US8797377B2 (en) 2008-02-14 2014-08-05 Cisco Technology, Inc. Method and system for videoconference configuration
GB2457986A (en) * 2008-03-06 2009-09-09 Cambridge Silicon Radio Ltd Acoustic echo cancellation
US8319819B2 (en) 2008-03-26 2012-11-27 Cisco Technology, Inc. Virtual round-table videoconference
US8390667B2 (en) 2008-04-15 2013-03-05 Cisco Technology, Inc. Pop-up PIP for people not in picture
US8290141B2 (en) * 2008-04-18 2012-10-16 Freescale Semiconductor, Inc. Techniques for comfort noise generation in a communication system
US8233629B2 (en) * 2008-09-04 2012-07-31 Dts, Inc. Interaural time delay restoration system and method
US8694658B2 (en) 2008-09-19 2014-04-08 Cisco Technology, Inc. System and method for enabling communication sessions in a network environment
US8659637B2 (en) 2009-03-09 2014-02-25 Cisco Technology, Inc. System and method for providing three dimensional video conferencing in a network environment
US8477175B2 (en) * 2009-03-09 2013-07-02 Cisco Technology, Inc. System and method for providing three dimensional imaging in a network environment
US8659639B2 (en) 2009-05-29 2014-02-25 Cisco Technology, Inc. System and method for extending communications between participants in a conferencing environment
US9082297B2 (en) 2009-08-11 2015-07-14 Cisco Technology, Inc. System and method for verifying parameters in an audiovisual environment
US9225916B2 (en) 2010-03-18 2015-12-29 Cisco Technology, Inc. System and method for enhancing video images in a conferencing environment
US9313452B2 (en) 2010-05-17 2016-04-12 Cisco Technology, Inc. System and method for providing retracting optics in a video conferencing environment
US8896655B2 (en) 2010-08-31 2014-11-25 Cisco Technology, Inc. System and method for providing depth adaptive video conferencing
US8599934B2 (en) 2010-09-08 2013-12-03 Cisco Technology, Inc. System and method for skip coding during video conferencing in a network environment
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
US9042535B2 (en) 2010-09-29 2015-05-26 Cisco Technology, Inc. Echo control optimization
US8599865B2 (en) 2010-10-26 2013-12-03 Cisco Technology, Inc. System and method for provisioning flows in a mobile network environment
US8699457B2 (en) 2010-11-03 2014-04-15 Cisco Technology, Inc. System and method for managing flows in a mobile network environment
US9338394B2 (en) 2010-11-15 2016-05-10 Cisco Technology, Inc. System and method for providing enhanced audio in a video environment
US8730297B2 (en) 2010-11-15 2014-05-20 Cisco Technology, Inc. System and method for providing camera functions in a video environment
US9143725B2 (en) 2010-11-15 2015-09-22 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US8902244B2 (en) 2010-11-15 2014-12-02 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US8542264B2 (en) 2010-11-18 2013-09-24 Cisco Technology, Inc. System and method for managing optics in a video environment
US8723914B2 (en) 2010-11-19 2014-05-13 Cisco Technology, Inc. System and method for providing enhanced video processing in a network environment
US9111138B2 (en) 2010-11-30 2015-08-18 Cisco Technology, Inc. System and method for gesture interface control
USD678894S1 (en) 2010-12-16 2013-03-26 Cisco Technology, Inc. Display screen with graphical user interface
USD682294S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
USD682854S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen for graphical user interface
USD682864S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen with graphical user interface
USD678320S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD678308S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD678307S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD682293S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
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
US8692862B2 (en) 2011-02-28 2014-04-08 Cisco Technology, Inc. System and method for selection of video data in a video conference environment
US8670019B2 (en) 2011-04-28 2014-03-11 Cisco Technology, Inc. System and method for providing enhanced eye gaze in a video conferencing environment
US8786631B1 (en) 2011-04-30 2014-07-22 Cisco Technology, Inc. System and method for transferring transparency information in a video environment
US8934026B2 (en) 2011-05-12 2015-01-13 Cisco Technology, Inc. System and method for video coding in a dynamic environment
US8947493B2 (en) 2011-11-16 2015-02-03 Cisco Technology, Inc. System and method for alerting a participant in a video conference
US8682087B2 (en) 2011-12-19 2014-03-25 Cisco Technology, Inc. System and method for depth-guided image filtering in a video conference environment
CN102623016A (zh) * 2012-03-26 2012-08-01 华为技术有限公司 宽带语音处理方法及装置
WO2013160945A1 (ja) * 2012-04-25 2013-10-31 三菱電機株式会社 エコー消去装置
US9681154B2 (en) 2012-12-06 2017-06-13 Patent Capital Group System and method for depth-guided filtering in a video conference environment
US9843621B2 (en) 2013-05-17 2017-12-12 Cisco Technology, Inc. Calendaring activities based on communication processing
WO2015130509A1 (en) * 2014-02-28 2015-09-03 Dolby Laboratories Licensing Corporation Perceptual continuity using change blindness in conferencing
EP3469591B1 (de) 2016-06-08 2020-04-08 Dolby Laboratories Licensing Corporation Echoschätzung und -verwaltung mit anpassung eines verstreuten prädiktionsfiltersatzes
US10122863B2 (en) * 2016-09-13 2018-11-06 Microsemi Semiconductor (U.S.) Inc. Full duplex voice communication system and method
US10388298B1 (en) * 2017-05-03 2019-08-20 Amazon Technologies, Inc. Methods for detecting double talk
EP3425923B1 (de) * 2017-07-06 2024-05-08 GN Audio A/S Kopfhörer mit verminderung von umgebungsgeräuschen
US10951859B2 (en) 2018-05-30 2021-03-16 Microsoft Technology Licensing, Llc Videoconferencing device and method
US12155789B2 (en) * 2022-06-20 2024-11-26 Motorola Mobility Llc Adjusting transmit audio at near-end device based on background noise at far-end device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747132A (en) * 1984-04-09 1988-05-24 Matsushita Electric Industrial Co., Ltd. Howling canceller
EP0310055B1 (de) * 1987-10-02 1994-01-12 Advanced Micro Devices, Inc. Adaptiver Echokompensator mit Doppel-Spracherkennung
US5305309A (en) * 1989-12-06 1994-04-19 Fujitsu Limited Echo canceller
CA2036078C (en) * 1990-02-21 1994-07-26 Fumio Amano Sub-band acoustic echo canceller
US5305307A (en) 1991-01-04 1994-04-19 Picturetel Corporation Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths
FR2710210A1 (fr) * 1993-09-13 1995-03-24 Trt Telecom Radio Electr Procédé pour la mise en route d'un modem comportant un annuleur d'écho à phase variable et modem dans lequel un tel procédé est mis en Óoeuvre.
ZA95599B (en) * 1994-02-28 1996-02-06 Qualcomm Inc Doubletalk detection by means of spectral content
JPH07264279A (ja) 1994-03-18 1995-10-13 Nec Corp エコーキャンセラ装置
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
US6865270B1 (en) * 2000-09-21 2005-03-08 Rane Corporation Echo cancellation method and apparatus
JP4345225B2 (ja) * 2000-11-27 2009-10-14 沖電気工業株式会社 エコーキャンセラ

Also Published As

Publication number Publication date
EP1602223B1 (de) 2009-06-03
NO318401B1 (no) 2005-03-14
CN1810015A (zh) 2006-07-26
ES2328032T3 (es) 2009-11-06
CN100521710C (zh) 2009-07-29
DE60327895D1 (de) 2009-07-16
WO2004082249A1 (en) 2004-09-23
NO20031103D0 (no) 2003-03-10
JP2006514492A (ja) 2006-04-27
AU2003278623A1 (en) 2004-09-30
US7010119B2 (en) 2006-03-07
US20040218755A1 (en) 2004-11-04
EP1602223A1 (de) 2005-12-07

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