NO20002111D0 - FremgangsmÕte og anordning for akkustisk ekkokansellering i stereo - Google Patents

FremgangsmÕte og anordning for akkustisk ekkokansellering i stereo

Info

Publication number
NO20002111D0
NO20002111D0 NO20002111A NO20002111A NO20002111D0 NO 20002111 D0 NO20002111 D0 NO 20002111D0 NO 20002111 A NO20002111 A NO 20002111A NO 20002111 A NO20002111 A NO 20002111A NO 20002111 D0 NO20002111 D0 NO 20002111D0
Authority
NO
Norway
Prior art keywords
echo cancellation
acoustic echo
cancellation method
stereo acoustic
stereo
Prior art date
Application number
NO20002111A
Other languages
English (en)
Other versions
NO20002111L (no
Inventor
Ove Till
Peter Eneroth
Tomas Gonsler
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Publication of NO20002111D0 publication Critical patent/NO20002111D0/no
Publication of NO20002111L publication Critical patent/NO20002111L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
NO20002111A 1997-10-29 2000-04-26 Fremgangsmate og anordning for akkustisk ekkokansellering i stereo NO20002111L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703972A SE512903C2 (sv) 1997-10-29 1997-10-29 Metod och anordning vid stereoakustisk ekosläckning
PCT/SE1998/001858 WO1999022460A2 (en) 1997-10-29 1998-10-16 Method and device at stereo acoustic echo cancellation

Publications (2)

Publication Number Publication Date
NO20002111D0 true NO20002111D0 (no) 2000-04-26
NO20002111L NO20002111L (no) 2000-06-28

Family

ID=20408805

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002111A NO20002111L (no) 1997-10-29 2000-04-26 Fremgangsmate og anordning for akkustisk ekkokansellering i stereo

Country Status (6)

Country Link
EP (1) EP1031191B1 (no)
DE (1) DE69835614D1 (no)
EE (1) EE03716B1 (no)
NO (1) NO20002111L (no)
SE (1) SE512903C2 (no)
WO (1) WO1999022460A2 (no)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348350B (en) 1999-03-26 2004-02-18 Mitel Corp Echo cancelling/suppression for handsets
NO319467B1 (no) * 2003-12-29 2005-08-15 Tandberg Telecom As System og fremgangsmate for forbedret subjektiv stereolyd
US7903137B2 (en) 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US7720232B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7760887B2 (en) 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
US7720236B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7593539B2 (en) 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
US8259928B2 (en) 2007-04-23 2012-09-04 Microsoft Corporation Method and apparatus for reducing timestamp noise in audio echo cancellation
US10652663B1 (en) 2019-04-30 2020-05-12 Cisco Technology, Inc. Endpoint device using the precedence effect to improve echo cancellation performance
US12499866B2 (en) 2021-12-17 2025-12-16 Shure Acquisition Holdings, Inc. Adaptive acoustic echo cancellation for a stereo audio signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2508574B2 (ja) * 1992-11-10 1996-06-19 日本電気株式会社 多チャンネルエコ―除去装置
US5555310A (en) * 1993-02-12 1996-09-10 Kabushiki Kaisha Toshiba Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied
JPH084243B2 (ja) * 1993-05-31 1996-01-17 日本電気株式会社 多チャンネルエコー除去方法および装置
JP3397269B2 (ja) * 1994-10-26 2003-04-14 日本電信電話株式会社 多チャネル反響消去方法
FR2762467B1 (fr) * 1997-04-16 1999-07-02 France Telecom Procede d'annulation d'echo acoustique multi-voies et annuleur d'echo acoustique multi-voies

Also Published As

Publication number Publication date
NO20002111L (no) 2000-06-28
EE200000182A (et) 2001-06-15
WO1999022460A3 (en) 1999-07-15
DE69835614D1 (de) 2006-09-28
EP1031191A2 (en) 2000-08-30
WO1999022460A2 (en) 1999-05-06
SE512903C2 (sv) 2000-06-05
EE03716B1 (et) 2002-04-15
SE9703972D0 (sv) 1997-10-29
SE9703972L (sv) 1999-04-30
EP1031191B1 (en) 2006-08-16

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application