FR2829323B1 - Procede et dispositif de localisation de sous-bande et de detection de superposition de signaux vocaux dans des systemes de telecommunications - Google Patents

Procede et dispositif de localisation de sous-bande et de detection de superposition de signaux vocaux dans des systemes de telecommunications

Info

Publication number
FR2829323B1
FR2829323B1 FR0210709A FR0210709A FR2829323B1 FR 2829323 B1 FR2829323 B1 FR 2829323B1 FR 0210709 A FR0210709 A FR 0210709A FR 0210709 A FR0210709 A FR 0210709A FR 2829323 B1 FR2829323 B1 FR 2829323B1
Authority
FR
France
Prior art keywords
sub
telecommunication systems
vocal signal
signal overlay
overlay detection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR0210709A
Other languages
English (en)
Other versions
FR2829323A1 (fr
Inventor
Michael Seibert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsemi Semiconductor ULC
Original Assignee
Zarlink Semoconductor Inc
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 Zarlink Semoconductor Inc filed Critical Zarlink Semoconductor Inc
Publication of FR2829323A1 publication Critical patent/FR2829323A1/fr
Application granted granted Critical
Publication of FR2829323B1 publication Critical patent/FR2829323B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR0210709A 2001-08-29 2002-08-29 Procede et dispositif de localisation de sous-bande et de detection de superposition de signaux vocaux dans des systemes de telecommunications Expired - Fee Related FR2829323B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0120868A GB2379369B (en) 2001-08-29 2001-08-29 Subband echo location and double-talk detection in communication systems

Publications (2)

Publication Number Publication Date
FR2829323A1 FR2829323A1 (fr) 2003-03-07
FR2829323B1 true FR2829323B1 (fr) 2006-11-10

Family

ID=9921121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0210709A Expired - Fee Related FR2829323B1 (fr) 2001-08-29 2002-08-29 Procede et dispositif de localisation de sous-bande et de detection de superposition de signaux vocaux dans des systemes de telecommunications

Country Status (7)

Country Link
US (1) US7003101B2 (fr)
JP (2) JP2003134005A (fr)
KR (1) KR100627944B1 (fr)
CN (1) CN1177455C (fr)
DE (1) DE10240007B4 (fr)
FR (1) FR2829323B1 (fr)
GB (1) GB2379369B (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0212397D0 (en) * 2002-05-29 2002-07-10 Mitel Knowledge Corp Line echo cancellation system
US7627111B2 (en) * 2002-11-25 2009-12-01 Intel Corporation Noise matching for echo cancellers
US7471788B2 (en) * 2002-11-25 2008-12-30 Intel Corporation Echo cancellers for sparse channels
US20040234067A1 (en) * 2003-05-19 2004-11-25 Acoustic Technologies, Inc. Distributed VAD control system for telephone
JP4591685B2 (ja) * 2004-03-31 2010-12-01 ヤマハ株式会社 ダブルトーク状態判定方法、エコーキャンセル方法、ダブルトーク状態判定装置、エコーキャンセル装置およびプログラム
CN1716798B (zh) * 2004-07-02 2011-03-02 朗迅科技公司 通信网络中消除回波的方法
JP4543896B2 (ja) * 2004-11-18 2010-09-15 沖電気工業株式会社 エコー除去方法、エコーキャンセラ及び電話中継装置
GB2439988A (en) * 2005-06-01 2008-01-16 Tecteon Plc Subband coefficient adaptor for adaptive filter
JP4613705B2 (ja) * 2005-06-15 2011-01-19 沖電気工業株式会社 エコーキャンセラ
JP4692291B2 (ja) * 2006-01-13 2011-06-01 沖電気工業株式会社 エコーキャンセラ
US8229107B2 (en) 2006-01-17 2012-07-24 Mitsubishi Electric Corporation Echo canceler
US8032098B2 (en) * 2006-05-05 2011-10-04 Samsung Electronics Co., Ltd. MIMO receiver with pooled adaptive digital filtering
US7783478B2 (en) * 2007-01-03 2010-08-24 Alexander Goldin Two stage frequency subband decomposition
ATE524807T1 (de) * 2007-01-23 2011-09-15 Siemens Ag Oesterreich Verfahren zur identifikation von signalen gleichen ursprungs
JP2008219088A (ja) * 2007-02-28 2008-09-18 Oki Electric Ind Co Ltd エコーキャンセラ及びエコーキャンセル方法
GB2448201A (en) * 2007-04-04 2008-10-08 Zarlink Semiconductor Inc Cancelling non-linear echo during full duplex communication in a hands free communication system.
GB2449720A (en) 2007-05-31 2008-12-03 Zarlink Semiconductor Inc Detecting double talk conditions in a hands free communication system
JP4621266B2 (ja) 2008-03-25 2011-01-26 富士通株式会社 測定方法、エコー発生箇所特定方法、測定装置、およびエコー発生箇所特定装置
US8295474B2 (en) * 2008-08-08 2012-10-23 Freescale Semiconductor, Inc. Echo canceller with heavy double-talk estimation
US8750491B2 (en) * 2009-03-24 2014-06-10 Microsoft Corporation Mitigation of echo in voice communication using echo detection and adaptive non-linear processor
JP5321372B2 (ja) * 2009-09-09 2013-10-23 沖電気工業株式会社 エコーキャンセラ
US8625776B2 (en) * 2009-09-23 2014-01-07 Polycom, Inc. Detection and suppression of returned audio at near-end
US8582443B1 (en) * 2009-11-23 2013-11-12 Marvell International Ltd. Method and apparatus for virtual cable test using echo canceller coefficients
JP5561025B2 (ja) * 2010-08-25 2014-07-30 沖電気工業株式会社 エコー経路特性推定装置、エコー経路特性推定プログラム及びエコーキャンセラー
FR3000328A1 (fr) 2012-12-21 2014-06-27 France Telecom Attenuation efficace de pre-echos dans un signal audionumerique
KR20170032603A (ko) * 2015-09-15 2017-03-23 삼성전자주식회사 전자 장치, 그의 반향 신호 제거 방법 및 비일시적 컴퓨터 판독가능 기록매체
WO2021211113A1 (fr) * 2020-04-15 2021-10-21 Hewlett-Packard Development Company, L.P. Détecteurs de superposition de signaux vocaux
TWI793486B (zh) 2020-12-28 2023-02-21 智原科技股份有限公司 通訊裝置中的回音消除裝置及其回音消除方法

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562312A (en) 1983-02-17 1985-12-31 At&T Bell Laboratories Subsampling delay estimator for an echo canceler
JPH0720073B2 (ja) * 1987-05-20 1995-03-06 沖電気工業株式会社 エコ−キヤンセラ
JPH04123606A (ja) * 1990-09-14 1992-04-23 Fujitsu Ltd サブバンド型エコーキャンセラ
JPH03262939A (ja) * 1990-03-14 1991-11-22 Fujitsu Ltd エコー経路変動検出方法およびその装置
CA2060667C (fr) * 1992-02-05 1998-12-08 Paul Marc Yatrou Contact pour connecteur electrique protege par un feuil de polymere, et methode de production
JPH0786509A (ja) * 1993-06-29 1995-03-31 Nec Corp 半導体集積回路
FI935834A (fi) * 1993-12-23 1995-06-24 Nokia Telecommunications Oy Menetelmä kaikukohtaan sovittautumiseksi kaiunpoistajassa
JPH07288493A (ja) * 1994-04-18 1995-10-31 Fujitsu Ltd ダブルトーク検出装置
JP2897672B2 (ja) * 1995-01-13 1999-05-31 日本電気株式会社 信号伝送回路
JPH08335871A (ja) * 1995-06-07 1996-12-17 Matsushita Electron Corp 半導体装置
US5631900A (en) * 1995-09-29 1997-05-20 Crystal Semiconductor Double-Talk detector for echo canceller
JP3199155B2 (ja) * 1995-10-18 2001-08-13 日本電信電話株式会社 反響消去装置
US5721782A (en) 1996-03-25 1998-02-24 Motorola, Inc. Partitioned echo canceler utilizing decimation echo location
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
JPH10150356A (ja) * 1996-11-15 1998-06-02 Nippon Steel Corp Ｃｍｏｓ半導体集積回路
EP0847180A1 (fr) * 1996-11-27 1998-06-10 Nokia Mobile Phones Ltd. Détecteur de double conversation
JP3723317B2 (ja) * 1997-04-08 2005-12-07 株式会社アドバンテスト 信号伝送に用いる駆動回路、バイアス発生回路
JP3860305B2 (ja) * 1997-09-08 2006-12-20 富士通株式会社 エコーキャンセラ及びエコーキャンセラの制御方法
JPH11177189A (ja) * 1997-12-12 1999-07-02 Fujitsu Ltd プリント基板上配線の終端構造
US6442275B1 (en) * 1998-09-17 2002-08-27 Lucent Technologies Inc. Echo canceler including subband echo suppressor
US6265893B1 (en) * 1998-09-29 2001-07-24 Intel Corporation Signal line drivers
GB2344036B (en) * 1998-11-23 2004-01-21 Mitel Corp Single-sided subband filters
GB2348092B (en) 1999-01-12 2001-04-18 Motorola Inc Adapative step size for filter and method therefor
KR20000051747A (ko) 1999-01-26 2000-08-16 윤종용 더블토크 상황에서 안정되게 동작하는 반향제거장치
JP3390358B2 (ja) * 1999-02-19 2003-03-24 松下電器産業株式会社 係数転送判別器及びそれを用いたエコーキャンセラ
US6771772B1 (en) * 1999-07-09 2004-08-03 Oguz Tanrikulu Method and apparatus for fast network bulk delay and span estimation for line echo cancellation
KR20010011354A (ko) * 1999-07-27 2001-02-15 윤종용 반도체 장치의 출력 임피던스 조절 회로
GB2354414B (en) * 1999-09-14 2004-12-22 Mitel Corp Locating network echos
US6961423B2 (en) * 2002-06-24 2005-11-01 Freescale Semiconductor, Inc. Method and apparatus for performing adaptive filtering

Also Published As

Publication number Publication date
DE10240007B4 (de) 2010-09-16
GB0120868D0 (en) 2001-10-17
US7003101B2 (en) 2006-02-21
US20040037417A1 (en) 2004-02-26
JP2007329971A (ja) 2007-12-20
CN1177455C (zh) 2004-11-24
DE10240007A1 (de) 2003-04-30
GB2379369A (en) 2003-03-05
JP2003134005A (ja) 2003-05-09
JP4700663B2 (ja) 2011-06-15
KR100627944B1 (ko) 2006-09-22
CN1402504A (zh) 2003-03-12
KR20030019184A (ko) 2003-03-06
FR2829323A1 (fr) 2003-03-07
GB2379369B (en) 2005-06-29

Similar Documents

Publication Publication Date Title
FR2829323B1 (fr) Procede et dispositif de localisation de sous-bande et de detection de superposition de signaux vocaux dans des systemes de telecommunications
DK2498424T3 (da) Fremgangsmåde og system til kohærent optisk detektion og signalprocessering
FR2873248B1 (fr) Procede et dispositif pour la localisation de transpondeurs
BRPI0307674A2 (pt) aparelho e método de um sistema de capital distribuído.
FR2855292B1 (fr) Dispositif et procede de recalage en temps reel de motifs sur des images, notamment pour le guidage par localisation
FR2862763B1 (fr) Procede et dispositif pour emettre de multiples faisceaux
AU2003273220A1 (en) Cross-correlation mitigation method and apparatus for use in a global positioning system receiver
FR2887352B1 (fr) Dispositif et procede pour proteger l'integrite de donnees.
FR2863070B1 (fr) Procede et dispositif d'interface homme - machine
EP1430616A4 (fr) Procede et appareil permettant de realiser une correlation de signaux au moyen de donnees historiques de correlation
NO20003851D0 (no) FremgangsmÕte og innretning for signalbehandling, og sonarsystemer
FR2858257B1 (fr) Procede et dispositif de solidification dirigee
AU2003265314A8 (en) Apparatus, system, and method for alarm systems
FR2861325B1 (fr) Procede et dispositif d'usinage de panneaux
FR2823092B1 (fr) Dispositif per-operatoire pour la localisation de tissus marques et procede utilisant un tel dispositif
FR2862834B1 (fr) Procede et dispositif de video-projection
FR2858252B1 (fr) Dispositif et procede d'enduction
FR2841409B1 (fr) Procede et dispositif de protection de donnees
FR2845491B1 (fr) Procede et dispositif pour mouler une pellicule de polarisation.
FI20020532A (fi) Menetelmä ja laitteisto datan kääntämiseksi
FR2825650B1 (fr) Dispositif et procede de recuperation de jets de liquide
DE50200156D1 (de) Vorrichtung zum positionieren zumindest eines bauelements innerhalb eines endoskopischen systems
FR2849955B1 (fr) Dispositif de micro-fabrication et procede de micro-fabrication
FI20035084A0 (fi) Menetelmä ja järjestelmä valinnan suorittamiseksi ja elektroniikkalaite
FR2816714B1 (fr) Procede et dispositif de depot de couches minces

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20130430