FI944726A0 - Metod för att undvika självsvängning i samband med ekosläckning - Google Patents

Metod för att undvika självsvängning i samband med ekosläckning

Info

Publication number: FI944726A0
Authority: FI; Finland
Prior art keywords: oscillation; transfer function; loop; self; eco
Prior art date: 1992-04-09

Application number

FI944726A

Other languages

English (en)

Finnish (fi)

Other versions

FI944726A (sv

Inventor

Bengt Gustav Loefmark

Original Assignee

Ericsson Telefon Ab L M

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.)

1992-04-09

Filing date

1994-10-07

Publication date

1994-10-07

1994-10-07 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1994-10-07 Publication of FI944726A0 publication Critical patent/FI944726A0/sv

1994-10-07 Publication of FI944726A publication Critical patent/FI944726A/sv

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)

FI944726A 1992-04-09 1994-10-07 Metod för att undvika självsvängning i samband med ekosläckning FI944726A (sv)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
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
FI944726A0 true FI944726A0 (sv)	1994-10-07
FI944726A FI944726A (sv)	1994-10-07

Family

ID=20385920

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI944726A FI944726A (sv)	1992-04-09	1994-10-07	Metod för att undvika självsvängning i samband med ekosläckning

Country Status (16)

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

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

1992
- 1992-04-09 SE SE9201145A patent/SE470119B/sv not_active IP Right Cessation
1993
- 1993-03-11 WO PCT/SE1993/000218 patent/WO1993021695A1/en active IP Right Grant
- 1993-03-11 KR KR1019940703593A patent/KR100271343B1/ko not_active IP Right Cessation
- 1993-03-11 AU AU39638/93A patent/AU668558B2/en not_active Ceased
- 1993-03-11 AT AT93909104T patent/ATE179849T1/de not_active IP Right Cessation
- 1993-03-11 DE DE69324806T patent/DE69324806T2/de not_active Expired - Fee Related
- 1993-03-11 DK DK93909104T patent/DK0635178T3/da active
- 1993-03-11 BR BR9306205A patent/BR9306205A/pt not_active IP Right Cessation
- 1993-03-11 ES ES93909104T patent/ES2132229T3/es not_active Expired - Lifetime
- 1993-03-11 JP JP5518219A patent/JPH07505986A/ja active Pending
- 1993-03-11 CA CA002131890A patent/CA2131890A1/en not_active Abandoned
- 1993-03-11 EP EP93909104A patent/EP0635178B1/en not_active Expired - Lifetime
- 1993-04-08 US US08/044,050 patent/US5446787A/en not_active Expired - Lifetime
1994
- 1994-10-07 FI FI944726A patent/FI944726A/sv unknown
- 1994-10-07 NO NO943781A patent/NO306919B1/no not_active IP Right Cessation
1999
- 1999-07-13 GR GR990401832T patent/GR3030748T3/el unknown

Also Published As

Publication number	Publication date
DK0635178T3 (da)	1999-11-15
KR950701165A (ko)	1995-02-20
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
FI944726A (sv)	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

Publication	Publication Date	Title
DE3585532D1 (de)	1992-04-09	Vollduplexfernsprechhoerer fuer funk- und ueberlandlinien.
MX9305889A (es)	1994-05-31	Cancelador de eco de red.
SE9301184L (sv)	1993-10-14	Sätt att utföra konvergens i en ekoundertryckare med adaptiva filter
DE3467483D1 (en)	1987-12-17	Adaptive echo canceller
FI944726A (sv)	1994-10-07	Metod för att undvika självsvängning i samband med ekosläckning
AU589941B2 (en)	1989-10-26	Noise cancellation
WO1999060720A3 (en)	1999-12-29	Echo cancellation in digital data transmission system
ES2056986T3 (es)	1994-10-16	Anulador de eco.
SE9803640D0 (sv)	1998-10-23	Double-talk insensitive NLMS algorithm
JPS5742242A (en)	1982-03-09	Two-wire type bidirectional amplifier system
HK1007364A1 (en)	1999-04-09	A method for non-linear signal processing in an echo canceller
NO883355D0 (no)	1988-07-28	Ekkokompensator.
JPS6416031A (en)	1989-01-19	Echo canceller circuit