NO905147L - Fremgangsmaate og anordning for aa unngaa feilaktig ekkoeliminering og/eller utjevning i et telekommunikasjonssystem. - Google Patents

Fremgangsmaate og anordning for aa unngaa feilaktig ekkoeliminering og/eller utjevning i et telekommunikasjonssystem.

Info

Publication number: NO905147L
Authority: NO; Norway
Prior art keywords: eco; equalization; elimination; procedure; telecommunication system
Prior art date: 1989-04-27

Application number

NO90905147A

Other languages

English (en)

Other versions

NO302008B1 (no

NO905147D0 (no

Inventor

Erik Anders Eriksson

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.)

1989-04-27

Filing date

1990-11-28

Publication date

1990-11-28

1990-11-28 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1990-11-28 Publication of NO905147D0 publication Critical patent/NO905147D0/no

1990-11-28 Publication of NO905147L publication Critical patent/NO905147L/no

1998-01-05 Publication of NO302008B1 publication Critical patent/NO302008B1/no

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
- 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
- H04B3/235—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 combined with adaptive equaliser

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Analogue/Digital Conversion (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Filters That Use Time-Delay Elements (AREA)
Facsimile Transmission Control (AREA)
Mobile Radio Communication Systems (AREA)

NO905147A 1989-04-27 1990-11-28 Fremgangsmåte og anordning for å unngå feilaktig ekkoeliminering og/eller utjevning i et telekommunikasjonssystem NO302008B1 (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8901542A SE463589B (sv)	1989-04-27	1989-04-27	Foerfarande foer att undvika felaktig ekoeliminering och/eller utjaemning till foeljd av olinjaeriteter i en d/a-omvandlare och/eller en a/d-omvandlare i en telekommunikationsanlaeggning, samt anordning foer utoevande av foerfarandet i samband med d/a-omvandling och anordning foer utoevande av foerfarandet i samband med a/d-omvandling
PCT/SE1990/000177 WO1990013185A1 (en)	1989-04-27	1990-03-20	A method and arrangement for avoiding erroneous echo-elimination and/or equalization in a telecommunication system

Publications (3)

Publication Number	Publication Date
NO905147D0 NO905147D0 (no)	1990-11-28
NO905147L true NO905147L (no)	1990-11-28
NO302008B1 NO302008B1 (no)	1998-01-05

Family

ID=20375822

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO905147A NO302008B1 (no)	1989-04-27	1990-11-28	Fremgangsmåte og anordning for å unngå feilaktig ekkoeliminering og/eller utjevning i et telekommunikasjonssystem

Country Status (15)

Country	Link
US (1)	US5189637A (no)
EP (1)	EP0399968B1 (no)
JP (1)	JP3124771B2 (no)
KR (1)	KR950014543B1 (no)
AU (1)	AU622799B2 (no)
BR (1)	BR9006719A (no)
CA (1)	CA2030623C (no)
DE (1)	DE69006634T2 (no)
DK (1)	DK0399968T3 (no)
ES (1)	ES2049459T3 (no)
FI (1)	FI100371B (no)
IE (1)	IE65531B1 (no)
NO (1)	NO302008B1 (no)
SE (1)	SE463589B (no)
WO (1)	WO1990013185A1 (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5157653A (en) *	1990-08-03	1992-10-20	Coherent Communications Systems Corp.	Residual echo elimination with proportionate noise injection
SE501248C2 (sv) *	1993-05-14	1994-12-19	Ericsson Telefon Ab L M	Metod och ekosläckare för ekoutsläckning med ett antal kaskadkopplade adaptiva filter
US5650954A (en) *	1996-01-30	1997-07-22	Seagate Technology, Inc.	Frequency and time domain adaptive filtration in a sampled communication channel
US5812537A (en) *	1995-09-29	1998-09-22	Paradyne Corporation	Echo canceling method and apparatus for data over cellular
DE19611941C1 (de) *	1996-03-26	1997-12-11	Siemens Ag	Schaltungsanordnung zur Leitungsanpassung und Echounterdrückung
US6184692B1 (en) *	1997-10-29	2001-02-06	Lucent Technologies, Inc.	Loop back test apparatus and technique
US6028929A (en) *	1997-11-14	2000-02-22	Tellabs Operations, Inc.	Echo canceller employing dual-H architecture having improved non-linear echo path detection
AU1463800A (en)	1998-11-02	2000-05-22	Broadcom Corporation	Measurement of nonlinear distortion in transmitters
DE10005620A1 (de)	2000-02-09	2001-08-30	Infineon Technologies Ag	Schaltungsanordnung
US6813311B1 (en)	2000-03-14	2004-11-02	Globespan Virata Corporation	Non-linear echo cancellation for wireless modems and the like
DE10318603B4 (de)	2003-04-24	2005-03-10	Infineon Technologies Ag	Eingangsempfängerschaltung
US20050035891A1 (en) *	2003-08-14	2005-02-17	Tripath Technology, Inc.	Digital-to-analog converter with level control
JP2009135595A (ja) *	2007-11-28	2009-06-18	Sony Corp	スイッチトキャパシタ回路、スイッチトキャパシタフィルタ、およびシグマデルタａｄ変換器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3732410A (en) *	1969-12-22	1973-05-08	Postmaster Department Res Labo	Self adaptive filter and control circuit therefor
US4200863A (en) *	1977-10-03	1980-04-29	The Regents Of The University Of California	Weighted capacitor analog/digital converting apparatus and method
US4129863A (en) *	1977-10-03	1978-12-12	Regents Of The University Of California	Weighted capacitor analog/digital converting apparatus and method
US4476456A (en) *	1981-11-03	1984-10-09	Texas Instruments Incorporated	Combination of an analog to digital converter and sampling switch
US4669116A (en) *	1982-12-09	1987-05-26	Regents Of The University Of California	Non-linear echo cancellation of data signals
NL8600815A (nl) *	1986-03-28	1987-10-16	At & T & Philips Telecomm	Inrichting voor het kompenseren van niet-lineaire vervorming in een te digitaliseren ingangssignaal en een echokompensatiestelsel voorzien van een dergelijke inrichting.
NL8700983A (nl) *	1987-04-27	1988-11-16	Philips Nv	Digitaal-analoog omzetter.
DE3778702D1 (de) *	1987-10-30	1992-06-04	Ibm	Analog-digital/digital-analogwandlersystem und geraet zur echoannullierung unter verwendung eines solchen systems.
US4999830A (en) *	1989-09-25	1991-03-12	At&T Bell Laboratories	Communication system analog-to-digital converter using echo information to improve resolution
US4977591A (en) *	1989-11-17	1990-12-11	Nynex Corporation	Dual mode LMS nonlinear data echo canceller

1989
- 1989-04-27 SE SE8901542A patent/SE463589B/sv not_active IP Right Cessation
1990
- 1990-03-20 AU AU55638/90A patent/AU622799B2/en not_active Ceased
- 1990-03-20 WO PCT/SE1990/000177 patent/WO1990013185A1/en not_active Ceased
- 1990-03-20 EP EP90850106A patent/EP0399968B1/en not_active Expired - Lifetime
- 1990-03-20 DK DK90850106.7T patent/DK0399968T3/da active
- 1990-03-20 BR BR909006719A patent/BR9006719A/pt not_active IP Right Cessation
- 1990-03-20 JP JP02507022A patent/JP3124771B2/ja not_active Expired - Fee Related
- 1990-03-20 CA CA002030623A patent/CA2030623C/en not_active Expired - Fee Related
- 1990-03-20 ES ES90850106T patent/ES2049459T3/es not_active Expired - Lifetime
- 1990-03-20 DE DE69006634T patent/DE69006634T2/de not_active Expired - Fee Related
- 1990-03-26 US US07/498,755 patent/US5189637A/en not_active Expired - Fee Related
- 1990-04-25 IE IE146690A patent/IE65531B1/en not_active IP Right Cessation
- 1990-11-22 KR KR90702496A patent/KR950014543B1/ko not_active Expired - Fee Related
- 1990-11-28 NO NO905147A patent/NO302008B1/no not_active IP Right Cessation
- 1990-12-04 FI FI905993A patent/FI100371B/sv not_active IP Right Cessation

Also Published As

Publication number	Publication date
ES2049459T3 (es)	1994-04-16
SE463589B (sv)	1990-12-10
AU5563890A (en)	1990-11-16
JP3124771B2 (ja)	2001-01-15
KR920700498A (ko)	1992-02-19
NO302008B1 (no)	1998-01-05
US5189637A (en)	1993-02-23
AU622799B2 (en)	1992-04-16
EP0399968B1 (en)	1994-02-16
SE8901542L (sv)	1990-10-28
FI100371B (sv)	1997-11-14
EP0399968A1 (en)	1990-11-28
FI905993A0 (fi)	1990-12-04
IE901466L (en)	1990-10-27
CA2030623C (en)	2001-10-16
DE69006634T2 (de)	1994-05-26
BR9006719A (pt)	1991-08-06
CA2030623A1 (en)	1990-10-28
WO1990013185A1 (en)	1990-11-01
IE65531B1 (en)	1995-11-01
NO905147D0 (no)	1990-11-28
DK0399968T3 (da)	1994-06-06
DE69006634D1 (de)	1994-03-24
JPH03505661A (ja)	1991-12-05
SE8901542D0 (sv)	1989-04-27
KR950014543B1 (en)	1995-12-05

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Legal Events

Date	Code	Title	Description
2003-10-27	MM1K	Lapsed by not paying the annual fees	Free format text: LAPSED IN SEPTEMBER 2003