ATE283582T1 - Unterdrückung eines akustischen echos in einem digitalen mobilkommunikationssystem - Google Patents

Unterdrückung eines akustischen echos in einem digitalen mobilkommunikationssystem

Info

Publication number
ATE283582T1
ATE283582T1 AT96917515T AT96917515T ATE283582T1 AT E283582 T1 ATE283582 T1 AT E283582T1 AT 96917515 T AT96917515 T AT 96917515T AT 96917515 T AT96917515 T AT 96917515T AT E283582 T1 ATE283582 T1 AT E283582T1
Authority
AT
Austria
Prior art keywords
signals transmitted
pct
uplink direction
downlink direction
mobile station
Prior art date
Application number
AT96917515T
Other languages
English (en)
Inventor
Jyri Suvanen
Olli Kirla
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE283582T1 publication Critical patent/ATE283582T1/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)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
AT96917515T 1995-06-08 1996-06-07 Unterdrückung eines akustischen echos in einem digitalen mobilkommunikationssystem ATE283582T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI952833A FI110826B (fi) 1995-06-08 1995-06-08 Akustisen kaiun poisto digitaalisessa matkaviestinjärjestelmässä
PCT/FI1996/000340 WO1996042142A1 (en) 1995-06-08 1996-06-07 Acoustic echo elimination in a digital mobile communications system

Publications (1)

Publication Number Publication Date
ATE283582T1 true ATE283582T1 (de) 2004-12-15

Family

ID=8543570

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96917515T ATE283582T1 (de) 1995-06-08 1996-06-07 Unterdrückung eines akustischen echos in einem digitalen mobilkommunikationssystem

Country Status (11)

Country Link
US (1) US6081732A (de)
EP (1) EP0861531B1 (de)
JP (1) JP3668754B2 (de)
CN (1) CN1097360C (de)
AT (1) ATE283582T1 (de)
AU (1) AU709154B2 (de)
CA (1) CA2223827C (de)
DE (1) DE69633936T2 (de)
ES (1) ES2231812T3 (de)
FI (1) FI110826B (de)
WO (1) WO1996042142A1 (de)

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FI961567A7 (fi) * 1996-04-10 1997-10-11 Nokia Telecommunications Oy Kohinasalpa analogisessa matkaviestinjärjestelmässä
FI106489B (fi) * 1996-06-19 2001-02-15 Nokia Networks Oy Kaikusalpa ja kaiunpoistajan epälineaarinen prosessori
JP3556419B2 (ja) * 1996-12-09 2004-08-18 株式会社東芝 携帯無線電話機
US5920834A (en) * 1997-01-31 1999-07-06 Qualcomm Incorporated Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system
JPH10257583A (ja) * 1997-03-06 1998-09-25 Asahi Chem Ind Co Ltd 音声処理装置およびその音声処理方法
SE511650C2 (sv) * 1997-03-11 1999-11-01 Ericsson Telefon Ab L M Förfarande och anordning för att reducera eko i en telefontillämpning
FI104872B (fi) * 1997-04-11 2000-04-14 Nokia Networks Oy Menetelmä matkaviestinjärjestelmän kuormituksen hallitsemiseksi
FI105864B (fi) * 1997-04-18 2000-10-13 Nokia Networks Oy Kaiunpoistomekanismi
FI105372B (fi) * 1997-07-22 2000-07-31 Nokia Networks Oy TRAU-kehyksen tunnistaminen matkapuhelinjärjestelmässä
SE513672C2 (sv) * 1997-09-01 2000-10-16 Ericsson Telefon Ab L M Metod och appparat för undertryckning av eko
US6163608A (en) * 1998-01-09 2000-12-19 Ericsson Inc. Methods and apparatus for providing comfort noise in communications systems
JP2000244384A (ja) * 1999-02-18 2000-09-08 Mitsubishi Electric Corp 移動通信端末装置及び移動通信端末装置における音声符号化レート決定方法
US6415029B1 (en) * 1999-05-24 2002-07-02 Motorola, Inc. Echo canceler and double-talk detector for use in a communications unit
FI991605L (fi) 1999-07-14 2001-01-15 Nokia Networks Oy Menetelmä puhekodaukseen ja puhekoodaukseen tarvittavan laskentakapasi teetin vähentämiseksi ja verkkoelementti
DE19935808A1 (de) * 1999-07-29 2001-02-08 Ericsson Telefon Ab L M Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
US6526140B1 (en) * 1999-11-03 2003-02-25 Tellabs Operations, Inc. Consolidated voice activity detection and noise estimation
US7225001B1 (en) * 2000-04-24 2007-05-29 Telefonaktiebolaget Lm Ericsson (Publ) System and method for distributed noise suppression
FI20001517L (fi) 2000-06-26 2001-12-27 Nokia Networks Oy Menetelmä ja järjestelmä tietoliikennesignaalien käsittelemiseen
US7085370B1 (en) * 2000-06-30 2006-08-01 Telefonaktiebolaget Lm Ericsson (Publ) Ringback detection circuit
US6434235B1 (en) * 2000-08-01 2002-08-13 Lucent Technologies Inc. Acoustic echo canceler
US7003093B2 (en) * 2000-09-08 2006-02-21 Intel Corporation Tone detection for integrated telecommunications processing
US6738358B2 (en) * 2000-09-09 2004-05-18 Intel Corporation Network echo canceller for integrated telecommunications processing
US20020116186A1 (en) * 2000-09-09 2002-08-22 Adam Strauss Voice activity detector for integrated telecommunications processing
US6799062B1 (en) * 2000-10-19 2004-09-28 Motorola Inc. Full-duplex hands-free transparency circuit and method therefor
US6708147B2 (en) * 2001-02-28 2004-03-16 Telefonaktiebolaget Lm Ericsson(Publ) Method and apparatus for providing comfort noise in communication system with discontinuous transmission
US20030219113A1 (en) * 2002-05-21 2003-11-27 Bershad Neil J. Echo canceller with double-talk and channel impulse response adaptation
GB2389287B (en) 2002-05-31 2005-11-23 Zarlink Semiconductor Inc Distributed echo cancelling
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
US20060160581A1 (en) * 2002-12-20 2006-07-20 Christopher Beaugeant Echo suppression for compressed speech with only partial transcoding of the uplink user data stream
CN100591084C (zh) * 2003-01-08 2010-02-17 Nxp股份有限公司 用于抑制尤其在电话中的回声的装置和方法
GB2398205A (en) * 2003-02-06 2004-08-11 Stephen Anthony Gerar Chandler Subtraction of interfering signals in a relay radio network
US20060262851A1 (en) * 2005-05-19 2006-11-23 Celtro Ltd. Method and system for efficient transmission of communication traffic
CA2609945C (en) * 2005-06-18 2012-12-04 Nokia Corporation System and method for adaptive transmission of comfort noise parameters during discontinuous speech transmission
US7610197B2 (en) * 2005-08-31 2009-10-27 Motorola, Inc. Method and apparatus for comfort noise generation in speech communication systems
CN101046965B (zh) * 2006-03-27 2010-05-12 华为技术有限公司 一种在回波消除中产生舒适噪声的方法
US20080021702A1 (en) * 2006-06-28 2008-01-24 Shaojie Chen Wireless communication apparatus including a mechanism for suppressing uplink noise
WO2008137870A1 (en) 2007-05-04 2008-11-13 Personics Holdings Inc. Method and device for acoustic management control of multiple microphones
US9191740B2 (en) * 2007-05-04 2015-11-17 Personics Holdings, Llc Method and apparatus for in-ear canal sound suppression
US10194032B2 (en) 2007-05-04 2019-01-29 Staton Techiya, Llc Method and apparatus for in-ear canal sound suppression
US8526645B2 (en) 2007-05-04 2013-09-03 Personics Holdings Inc. Method and device for in ear canal echo suppression
US11683643B2 (en) 2007-05-04 2023-06-20 Staton Techiya Llc Method and device for in ear canal echo suppression
US11856375B2 (en) 2007-05-04 2023-12-26 Staton Techiya Llc Method and device for in-ear echo suppression
US7809129B2 (en) * 2007-08-31 2010-10-05 Motorola, Inc. Acoustic echo cancellation based on noise environment
CN101459727B (zh) * 2007-12-10 2011-06-29 深圳富泰宏精密工业有限公司 行动电话语音同步系统及方法
US8290141B2 (en) 2008-04-18 2012-10-16 Freescale Semiconductor, Inc. Techniques for comfort noise generation in a communication system
US20100304679A1 (en) * 2009-05-28 2010-12-02 Hanks Zeng Method and System For Echo Estimation and Cancellation
US8625776B2 (en) 2009-09-23 2014-01-07 Polycom, Inc. Detection and suppression of returned audio at near-end
CN101998462A (zh) * 2010-09-28 2011-03-30 中兴通讯股份有限公司 提高上行方向系统容量的方法及系统
KR20120034863A (ko) * 2010-10-04 2012-04-13 삼성전자주식회사 이동통신 단말기에서 오디오 신호 처리 방법 및 장치
CN103905928A (zh) * 2012-12-25 2014-07-02 安科智慧城市技术（中国）有限公司 一种网络语音对讲方法、装置及系统
US9860617B2 (en) * 2014-03-08 2018-01-02 Avago Technologies General Ip (Singapore) Pte. Ltd. Upstream frame configuration for ethernet passive optical network protocol over coax (EPoC) networks
EP2980790A1 (de) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Komfortgeräuscherzeugungs-Modusauswahl
CN106209491B (zh) * 2016-06-16 2019-07-02 苏州科达科技股份有限公司 一种时延检测方法及装置
CN107172313A (zh) * 2017-07-27 2017-09-15 广东欧珀移动通信有限公司 提高免提通话质量的方法、装置、移动终端及存储介质
US11089529B1 (en) 2020-03-09 2021-08-10 T-Mobile Usa, Inc. Switching wireless network sites based on vehicle velocity

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JPH04207825A (ja) * 1990-11-30 1992-07-29 Toshiba Corp 無線通信システムの基地局装置
GB2256351B (en) * 1991-05-25 1995-07-05 Motorola Inc Enhancement of echo return loss
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US5995827A (en) * 1997-11-20 1999-11-30 Lucent Technologies Inc. Method of muting a non-speaking cellular telephone caller participating in a conference call

Also Published As

Publication number Publication date
FI952833A7 (fi) 1996-12-09
DE69633936T2 (de) 2005-11-10
DE69633936D1 (de) 2004-12-30
JP3668754B2 (ja) 2005-07-06
CA2223827A1 (en) 1996-12-27
FI110826B (fi) 2003-03-31
EP0861531B1 (de) 2004-11-24
CN1097360C (zh) 2002-12-25
US6081732A (en) 2000-06-27
FI952833A0 (fi) 1995-06-08
JPH11507488A (ja) 1999-06-29
CN1187271A (zh) 1998-07-08
ES2231812T3 (es) 2005-05-16
AU6006296A (en) 1997-01-09
WO1996042142A1 (en) 1996-12-27
CA2223827C (en) 2006-04-11
AU709154B2 (en) 1999-08-19
EP0861531A1 (de) 1998-09-02

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