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FR2848040B1 - Procede d'apprentissage d'un annuleur d'echo et systeme de communication utilisant ce procede - Google Patents

Procede d'apprentissage d'un annuleur d'echo et systeme de communication utilisant ce procede

Info

Publication number
FR2848040B1
FR2848040B1 FR0313537A FR0313537A FR2848040B1 FR 2848040 B1 FR2848040 B1 FR 2848040B1 FR 0313537 A FR0313537 A FR 0313537A FR 0313537 A FR0313537 A FR 0313537A FR 2848040 B1 FR2848040 B1 FR 2848040B1
Authority
FR
France
Prior art keywords
learning
same
communication system
echo
cancer
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
FR0313537A
Other languages
English (en)
Other versions
FR2848040A1 (fr
Inventor
Yong Woon Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2848040A1 publication Critical patent/FR2848040A1/fr
Application granted granted Critical
Publication of FR2848040B1 publication Critical patent/FR2848040B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • 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
    • H04B3/238—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 using initial training sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR0313537A 2002-11-22 2003-11-19 Procede d'apprentissage d'un annuleur d'echo et systeme de communication utilisant ce procede Expired - Fee Related FR2848040B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0073103A KR100502414B1 (ko) 2002-11-22 2002-11-22 에이디에스엘 시스템의 에코 제거기 및 그것의 트레이닝방법

Publications (2)

Publication Number Publication Date
FR2848040A1 FR2848040A1 (fr) 2004-06-04
FR2848040B1 true FR2848040B1 (fr) 2007-03-30

Family

ID=32310863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0313537A Expired - Fee Related FR2848040B1 (fr) 2002-11-22 2003-11-19 Procede d'apprentissage d'un annuleur d'echo et systeme de communication utilisant ce procede

Country Status (3)

Country Link
US (1) US7349482B2 (fr)
KR (1) KR100502414B1 (fr)
FR (1) FR2848040B1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100713214B1 (ko) * 2006-03-08 2007-05-02 백동근 마우스를 이용한 대기전력 절감 시스템
JP4312227B2 (ja) * 2006-11-21 2009-08-12 富士通株式会社 エコー処理方法及び装置
US8155304B2 (en) * 2007-04-10 2012-04-10 Microsoft Corporation Filter bank optimization for acoustic echo cancellation
US8027279B2 (en) * 2007-09-17 2011-09-27 Lantiq Deutschland Gmbh Echo cancellation
GB2456400B (en) * 2008-01-21 2012-12-26 Skype Reducing echo in a signal to be transmitted in a communication system
TWI430599B (zh) * 2008-07-30 2014-03-11 Ic Plus Corp 收發裝置與回音消除方法
US7843859B1 (en) * 2008-09-23 2010-11-30 Netlogic Microsystems, Inc. Analog echo canceller with filter banks
BRPI1011689B1 (pt) 2009-03-11 2019-12-17 Sakura Finetek Usa Inc método de autofocalização e dispositivo de autofocalização
US10139613B2 (en) 2010-08-20 2018-11-27 Sakura Finetek U.S.A., Inc. Digital microscope and method of sensing an image of a tissue sample
US8837332B2 (en) * 2010-12-13 2014-09-16 Nec Laboratories America, Inc. Method for a canceling self interference signal using passive noise cancellation for full-duplex simultaneous (in time) and overlapping (in space) wireless transmission and reception on the same frequency band
DE102013103971A1 (de) 2013-04-19 2014-11-06 Sensovation Ag Verfahren zum Erzeugen eines aus mehreren Teilbildern zusammengesetzten Gesamtbilds eines Objekts
US10007102B2 (en) 2013-12-23 2018-06-26 Sakura Finetek U.S.A., Inc. Microscope with slide clamping assembly
US9438283B2 (en) * 2014-05-23 2016-09-06 Intel Corporation Baseband time domain cancellation of data bus interference
JP2017199949A (ja) * 2016-04-25 2017-11-02 株式会社Ｊｖｃケンウッド エコー除去装置、エコー除去方法およびエコー除去プログラム
US11280803B2 (en) 2016-11-22 2022-03-22 Sakura Finetek U.S.A., Inc. Slide management system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3376943D1 (en) * 1983-06-30 1988-07-07 Ibm Starting-up method for an echo canceller filter, and communication system using this method
GB8511835D0 (en) * 1985-05-10 1985-06-19 British Telecomm Adaptive digital filter
JPH05292174A (ja) * 1992-04-10 1993-11-05 Toshiba Corp エコーキャンセラ
JPH05122106A (ja) * 1991-05-22 1993-05-18 Hitachi Ltd 半導体集積回路装置
US5384806A (en) * 1991-09-23 1995-01-24 At&T Bell Laboratories Modem with time-invariant echo path
JPH07303061A (ja) * 1994-05-07 1995-11-14 N T T Idou Tsuushinmou Kk エコーキャンセラおよびエコーパス推定方法
JPH07303067A (ja) * 1994-05-06 1995-11-14 N T T Idou Tsuushinmou Kk エコーキャンセラ
ATE235763T1 (de) * 1994-05-06 2003-04-15 Nippon Telegraph & Telephone Verfahren zur echokompensation und echopfadschätzung
US5828657A (en) * 1995-09-29 1998-10-27 Paradyne Corporation Half-duplex echo canceler training using a pilot signal
JP2842345B2 (ja) * 1995-11-29 1999-01-06 日本電気株式会社 エコーキャンセラ
KR100256606B1 (ko) * 1997-12-05 2000-05-15 이용환 써귤라콘벌루션기법을 이용한 반향제거기의 빠른 초기화방법 및장치
US7023812B1 (en) * 2000-02-15 2006-04-04 Siemens Communications, Inc. System and method for improving modem transmission through private branch exchanges, central offices, and other systems
IE20010419A1 (en) * 2000-04-28 2001-11-14 Massana Res Ltd Echo and crosstalk cancellation
FR2811492A1 (fr) * 2000-07-05 2002-01-11 St Microelectronics Sa Cirtcuit d'emission et de reception comportant un annuleur d'echo
US6990083B1 (en) * 2000-10-27 2006-01-24 Tioga Technologies, Ltd. Method and device for computing echo-cancellation coefficients using FFT
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
US7003094B2 (en) * 2000-12-07 2006-02-21 Agere Systems Inc. Adaptive interference cancellation for ADSL
KR20030046080A (ko) * 2001-12-05 2003-06-12 엘지전자 주식회사 중앙국 비대칭디지털가입자망 모뎀 및 그 초기화 방법

Also Published As

Publication number Publication date
KR20040045088A (ko) 2004-06-01
FR2848040A1 (fr) 2004-06-04
US7349482B2 (en) 2008-03-25
US20040120272A1 (en) 2004-06-24
KR100502414B1 (ko) 2005-07-19

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20150731