SE9704010L - Förbättringar i samband med undertryckning av korthållseko - Google Patents

Förbättringar i samband med undertryckning av korthållseko

Info

Publication number
SE9704010L
SE9704010L SE9704010A SE9704010A SE9704010L SE 9704010 L SE9704010 L SE 9704010L SE 9704010 A SE9704010 A SE 9704010A SE 9704010 A SE9704010 A SE 9704010A SE 9704010 L SE9704010 L SE 9704010L
Authority
SE
Sweden
Prior art keywords
wire
hybrid
repressing
echoes
converter
Prior art date
Application number
SE9704010A
Other languages
Unknown language ( )
English (en)
Other versions
SE511055C2 (sv
SE9704010D0 (sv
Inventor
Lennart Olsson
K-G Bahlenberg
Daniel Bengtsson
Siwert Haakansson
Anders Isaksson
L-Aa Isaksson
Mikael Isaksson
Magnus Johansson
Mauritz Lathi
Karin L-M Ljunggren
Hans Lundberg
Tomas Nordstroem
S-R Olofsson
Tomas Stefansson
Hans Oehman
S G Oekvist
Per Oedling
Petra Dentgen
Frank Sjoeberg
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Priority to SE9704010A priority Critical patent/SE511055C2/sv
Publication of SE9704010D0 publication Critical patent/SE9704010D0/sv
Priority to EEP200000184A priority patent/EE200000184A/xx
Priority to US09/529,427 priority patent/US7039020B1/en
Priority to PCT/SE1998/001931 priority patent/WO1999023763A1/en
Priority to JP2000519508A priority patent/JP2001522189A/ja
Priority to EP98951874A priority patent/EP1025652A1/en
Publication of SE9704010L publication Critical patent/SE9704010L/sv
Publication of SE511055C2 publication Critical patent/SE511055C2/sv
Priority to NO20002139A priority patent/NO20002139L/no

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)
  • Bidirectional Digital Transmission (AREA)
SE9704010A 1997-11-03 1997-11-03 Förbättringar i samband med undertryckning av korthållseko SE511055C2 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9704010A SE511055C2 (sv) 1997-11-03 1997-11-03 Förbättringar i samband med undertryckning av korthållseko
EEP200000184A EE200000184A (et) 1997-11-03 1998-10-27 Lähikaja summutuse või sellega seotud täiustused
US09/529,427 US7039020B1 (en) 1997-11-03 1998-10-27 Near-echo suppression
PCT/SE1998/001931 WO1999023763A1 (en) 1997-11-03 1998-10-27 Improvements in, or relating to, near-echo suppression
JP2000519508A JP2001522189A (ja) 1997-11-03 1998-10-27 ニアエコー抑制の、またはこれに関する改良
EP98951874A EP1025652A1 (en) 1997-11-03 1998-10-27 Improvements in, or relating to, near-echo suppression
NO20002139A NO20002139L (no) 1997-11-03 2000-04-27 Hybridkrets for reduksjon av nær-ekko-signaler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9704010A SE511055C2 (sv) 1997-11-03 1997-11-03 Förbättringar i samband med undertryckning av korthållseko

Publications (3)

Publication Number Publication Date
SE9704010D0 SE9704010D0 (sv) 1997-11-03
SE9704010L true SE9704010L (sv) 1999-05-04
SE511055C2 SE511055C2 (sv) 1999-07-26

Family

ID=20408839

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9704010A SE511055C2 (sv) 1997-11-03 1997-11-03 Förbättringar i samband med undertryckning av korthållseko

Country Status (7)

Country Link
US (1) US7039020B1 (sv)
EP (1) EP1025652A1 (sv)
JP (1) JP2001522189A (sv)
EE (1) EE200000184A (sv)
NO (1) NO20002139L (sv)
SE (1) SE511055C2 (sv)
WO (1) WO1999023763A1 (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10247208A1 (de) * 2002-10-10 2004-04-22 Infineon Technologies Ag Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen
US20050232308A1 (en) * 2004-04-19 2005-10-20 Texas Instruments Incorporated Frame alignment and cyclic extension partitioning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989221A (en) * 1987-03-30 1991-01-29 Codex Corporation Sample rate converter
DE3804332C2 (de) 1988-02-12 1996-02-29 Ant Nachrichtentech Schaltungsanordnung zum Übergang von Vierdrahtbetrieb auf Zweidrahtbetrieb in der elektrischen Nachrichtentechnik
JPH05122106A (ja) * 1991-05-22 1993-05-18 Hitachi Ltd 半導体集積回路装置
JPH0669834A (ja) * 1992-08-24 1994-03-11 Mitsubishi Electric Corp ２線４線変換器
EP0691756A1 (de) 1994-07-07 1996-01-10 Siemens-Albis Aktiengesellschaft Echokompensator mit analogen Grobkompensator und digitalem Feinkompensator
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US6333920B1 (en) * 1996-09-09 2001-12-25 Lucent Technologies Inc. Frequency division duplexing system which accommodates symmetric and asymmetric channels
US5917809A (en) * 1997-01-08 1999-06-29 Analog Devices, Inc. Asymmetric digital subscriber loop modem and method

Also Published As

Publication number Publication date
NO20002139L (no) 2000-06-29
WO1999023763A1 (en) 1999-05-14
SE511055C2 (sv) 1999-07-26
EE200000184A (et) 2001-04-16
EP1025652A1 (en) 2000-08-09
SE9704010D0 (sv) 1997-11-03
NO20002139D0 (no) 2000-04-27
JP2001522189A (ja) 2001-11-13
US7039020B1 (en) 2006-05-02

Similar Documents

Publication Publication Date Title
EP0902550A3 (en) Power line communication systems
DE68924261D1 (de) Echokompensationseinrichtung mit Anpassung der Echokompensationskoeffizienten während der Vollduplexübertragung.
AU1974588A (en) Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement
KR960702965A (ko) 반향소거장치 및 반향경로 추정방법
KR960027855A (ko) 데이타 통신 장치 및 그 장치에 이용하기 위한 방법
FI973336A0 (sv) Ekosläckare med Kalman-filter för optimal adaptation
HK1028504A1 (en) Impedance modulation signalling.
GB2382965A (en) Far-end cross-talk cancellation for data transmission on multiple propogation modes
DE69225268T2 (de) Endgerät für Vollduplexdatenübertragung mit Echokompensator
SE9704010L (sv) Förbättringar i samband med undertryckning av korthållseko
SE8106157L (sv) Digital tva-till-fyrtradsomvandlare for fullduplexsignaler
ATE322762T1 (de) Vereinfachter digitaler fir filter für direkt- sequenzspreizspektrumübertragungssysteme
FI98418B (sv) Förbikopplingsbar Wilkinsons effektfördelare
ES2126547T3 (es) Terminal de trasmision de datos en una via analogica bidireccional con anulacion de eco acoplada al ritmo de recepcion.
EP1128570A3 (en) Echo compensator for telecommunication systems
US7324467B2 (en) Bridge circuit to suppress echoes in communication devices
DE3875028D1 (de) Echokompensator.
JPS5531359A (en) Hybrid circuit
SU1124433A1 (ru) Дифференциальна система
JPS584349Y2 (ja) ４線−２線変換回路
KR820001745B1 (ko) 스피커폰의 하이브리드 회로
DE59108780D1 (de) Schaltungsanordnung zur Kompensation von Impulsstörungen
KR880001121A (ko) 2선식 전이중방식 모뎀의 4선/2선 하이브리드 회로
WO2009022374A1 (ja) ｘＤＳＬ通信システム
KR870010442A (ko) 모뎀을 이용한 데이터 송수신 장치

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9704010-9

Format of ref document f/p: F