KR950701165A - 에코제거시 자기발진 방지방법(a method for avoiding self-oscillation in conjunction with echo cancellation) - Google Patents

에코제거시 자기발진 방지방법(a method for avoiding self-oscillation in conjunction with echo cancellation)

Info

Publication number
KR950701165A
KR950701165A KR1019940703593A KR19940703593A KR950701165A KR 950701165 A KR950701165 A KR 950701165A KR 1019940703593 A KR1019940703593 A KR 1019940703593A KR 19940703593 A KR19940703593 A KR 19940703593A KR 950701165 A KR950701165 A KR 950701165A
Authority
KR
South Korea
Prior art keywords
oscillation
transfer function
conjunction
loop
echo cancellation
Prior art date
Application number
KR1019940703593A
Other languages
English (en)
Other versions
KR100271343B1 (ko
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 filed Critical
Publication of KR950701165A publication Critical patent/KR950701165A/ko
Application granted granted Critical
Publication of KR100271343B1 publication Critical patent/KR100271343B1/ko

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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Pressure Sensors (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Vehicle Body Suspensions (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Vibration Prevention Devices (AREA)
  • Gyroscopes (AREA)
  • Filters That Use Time-Delay Elements (AREA)
KR1019940703593A 1992-04-09 1993-03-11 에코제거시 자기발진 방지방법 KR100271343B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9201145-1 1992-04-09
SE9201145A SE470119B (sv) 1992-04-09 1992-04-09 Metod för att undvika självsvängning i en fyrtrådsslinga i samband med ekosläckning
PCT/SE1993/000218 WO1993021695A1 (en) 1992-04-09 1993-03-11 A method for avoiding self-oscillation in conjunction with echo cancellation

Publications (2)

Publication Number Publication Date
KR950701165A true KR950701165A (ko) 1995-02-20
KR100271343B1 KR100271343B1 (ko) 2000-11-01

Family

ID=20385920

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940703593A KR100271343B1 (ko) 1992-04-09 1993-03-11 에코제거시 자기발진 방지방법

Country Status (16)

Country Link
US (1) US5446787A (ko)
EP (1) EP0635178B1 (ko)
JP (1) JPH07505986A (ko)
KR (1) KR100271343B1 (ko)
AT (1) ATE179849T1 (ko)
AU (1) AU668558B2 (ko)
BR (1) BR9306205A (ko)
CA (1) CA2131890A1 (ko)
DE (1) DE69324806T2 (ko)
DK (1) DK0635178T3 (ko)
ES (1) ES2132229T3 (ko)
FI (1) FI944726A (ko)
GR (1) GR3030748T3 (ko)
NO (1) NO306919B1 (ko)
SE (1) SE470119B (ko)
WO (1) WO1993021695A1 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612996A (en) * 1995-09-21 1997-03-18 Rockwell International Corporation Loop gain processing system for speakerphone applications
US6243366B1 (en) * 1997-06-20 2001-06-05 At&T Corp. Method and apparatus for providing interactive two-way communications using a single one-way channel in satellite systems
KR100477638B1 (ko) * 2001-09-11 2005-03-23 삼성전자주식회사 ２ｄ／３ｄ 겸용 디스플레이
US7215765B2 (en) * 2002-06-24 2007-05-08 Freescale Semiconductor, Inc. Method and apparatus for pure delay estimation in a communication system
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
US6961423B2 (en) 2002-06-24 2005-11-01 Freescale Semiconductor, Inc. Method and apparatus for performing adaptive filtering
US7388954B2 (en) * 2002-06-24 2008-06-17 Freescale Semiconductor, Inc. Method and apparatus for tone indication
EP1668854A1 (en) * 2003-09-23 2006-06-14 Koninklijke Philips Electronics N.V. Adaptive filter
DE502006008685D1 (de) * 2006-11-17 2011-02-17 Siemens Ag Verfahren und anordnung zur steuerung von adaptiven filtern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583430A (ja) * 1981-06-30 1983-01-10 Nec Corp まわり込信号抑圧装置
US4712235A (en) * 1984-11-19 1987-12-08 International Business Machines Corporation Method and apparatus for improved control and time sharing of an echo canceller
US4811261A (en) * 1985-03-04 1989-03-07 Oki Electric Industry Co., Ltd. Adaptive digital filter for determining a transfer equation of an unknown system
US4894820A (en) * 1987-03-24 1990-01-16 Oki Electric Industry Co., Ltd. Double-talk detection in an echo canceller
US5111481A (en) * 1989-11-17 1992-05-05 Nynex Corporation Dual mode LMS channel equalizer

Also Published As

Publication number Publication date
DK0635178T3 (da) 1999-11-15
DE69324806T2 (de) 1999-10-07
GR3030748T3 (en) 1999-11-30
NO943781L (no) 1994-10-07
SE470119B (sv) 1993-11-08
DE69324806D1 (de) 1999-06-10
FI944726A0 (fi) 1994-10-07
FI944726A (fi) 1994-10-07
US5446787A (en) 1995-08-29
WO1993021695A1 (en) 1993-10-28
ES2132229T3 (es) 1999-08-16
AU668558B2 (en) 1996-05-09
NO306919B1 (no) 2000-01-10
BR9306205A (pt) 1998-06-23
CA2131890A1 (en) 1993-10-28
SE9201145L (sv) 1993-10-10
ATE179849T1 (de) 1999-05-15
SE9201145D0 (sv) 1992-04-09
AU3963893A (en) 1993-11-18
EP0635178B1 (en) 1999-05-06
JPH07505986A (ja) 1995-06-29
EP0635178A1 (en) 1995-01-25
KR100271343B1 (ko) 2000-11-01
NO943781D0 (no) 1994-10-07

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Legal Events

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A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee