WO2005117284A3 - Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk - Google Patents

Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk Download PDF

Info

Publication number
WO2005117284A3
WO2005117284A3 PCT/EP2005/052128 EP2005052128W WO2005117284A3 WO 2005117284 A3 WO2005117284 A3 WO 2005117284A3 EP 2005052128 W EP2005052128 W EP 2005052128W WO 2005117284 A3 WO2005117284 A3 WO 2005117284A3
Authority
WO
WIPO (PCT)
Prior art keywords
interfering signals
circuit
crosstalk
access line
subscriber access
Prior art date
Application number
PCT/EP2005/052128
Other languages
German (de)
French (fr)
Other versions
WO2005117284A2 (en
Inventor
Ioannis Adaktylos
Paul Druegh
Hans-Guenther Krug
Original Assignee
Siemens Ag
Ioannis Adaktylos
Paul Druegh
Hans-Guenther Krug
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 Siemens Ag, Ioannis Adaktylos, Paul Druegh, Hans-Guenther Krug filed Critical Siemens Ag
Priority to EP05747768A priority Critical patent/EP1756964A2/en
Publication of WO2005117284A2 publication Critical patent/WO2005117284A2/en
Publication of WO2005117284A3 publication Critical patent/WO2005117284A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating

Abstract

The invention relates to a circuit (S1) for reducing interfering signals caused by symmetry distortion during transmission over a to-core line. The inventive circuit (S1) comprises at least one adjustable switching element looped into an end area of the line in the two cores (A1,A2) of the two-core line. By adjusting the switching element in order to reduce the interfering signals, the reduction of the influence of interfering signals is optimized, something which can already be reduced through other measures such as twisting the cores (A1,A2). The invention can be used especially for enhancing maximum transmission paths or maximum bandwidth in broadband connections such as ADSL connections.
PCT/EP2005/052128 2004-05-24 2005-05-11 Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk WO2005117284A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05747768A EP1756964A2 (en) 2004-05-24 2005-05-11 Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025425.7 2004-05-24
DE200410025425 DE102004025425A1 (en) 2004-05-24 2004-05-24 Circuit for reducing interference signals on the balanced subscriber line by crosstalk

Publications (2)

Publication Number Publication Date
WO2005117284A2 WO2005117284A2 (en) 2005-12-08
WO2005117284A3 true WO2005117284A3 (en) 2006-01-26

Family

ID=35433009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/052128 WO2005117284A2 (en) 2004-05-24 2005-05-11 Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk

Country Status (3)

Country Link
EP (1) EP1756964A2 (en)
DE (1) DE102004025425A1 (en)
WO (1) WO2005117284A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735897A (en) * 1951-06-21 1956-02-21 giaro
DE2721483A1 (en) * 1977-05-12 1978-11-16 Siemens Ag Local detector for interfering cross talk couplings - uses simulated circuit corresponding to coil field distribution and having simulated arrangement of load coils
JPS5566152A (en) * 1978-11-14 1980-05-19 Sansui Electric Co Multi-channel feedback amplifier with crosstalk component negated
JPS5578610A (en) * 1978-12-08 1980-06-13 Matsushita Electric Ind Co Ltd Mixing circuit
US5341419A (en) * 1992-08-21 1994-08-23 The Whitaker Corporation Capacitive unbalancing for reduction of differential mode cross-talk
US6546235B1 (en) * 2000-09-18 2003-04-08 Nortel Networks Limited System for cancelling distortion in an electronic circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735897A (en) * 1951-06-21 1956-02-21 giaro
DE2721483A1 (en) * 1977-05-12 1978-11-16 Siemens Ag Local detector for interfering cross talk couplings - uses simulated circuit corresponding to coil field distribution and having simulated arrangement of load coils
JPS5566152A (en) * 1978-11-14 1980-05-19 Sansui Electric Co Multi-channel feedback amplifier with crosstalk component negated
JPS5578610A (en) * 1978-12-08 1980-06-13 Matsushita Electric Ind Co Ltd Mixing circuit
US5341419A (en) * 1992-08-21 1994-08-23 The Whitaker Corporation Capacitive unbalancing for reduction of differential mode cross-talk
US6546235B1 (en) * 2000-09-18 2003-04-08 Nortel Networks Limited System for cancelling distortion in an electronic circuit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 109 (E - 020) 6 August 1980 (1980-08-06) *
PATENT ABSTRACTS OF JAPAN vol. 004, no. 126 (E - 024) 5 September 1980 (1980-09-05) *

Also Published As

Publication number Publication date
WO2005117284A2 (en) 2005-12-08
DE102004025425A1 (en) 2005-12-22
EP1756964A2 (en) 2007-02-28

Similar Documents

Publication Publication Date Title
WO2008023303A3 (en) Jitter buffer adjustment
EP1601224A3 (en) Method of reducing overhead in data packet communication
WO2006073877A3 (en) Systems and methods of providing voice communications over packet networks
EP2239878A3 (en) Receiver adjustment between pilot bursts
WO2002088884A3 (en) In-line power tap device for ethernet data signal
WO2008013649A3 (en) System and method for call routing based on transmission performance of a packet network
WO2009131867A3 (en) Cooperative communications techniques
WO2007011543A3 (en) Improved coupling of communications signals to a power line
WO2006106808A8 (en) Band control method and communication apparatus
CN106411371B (en) A kind of method of terminal and terminal received signals
WO2006096777A3 (en) Transmitter frequency peaking for optical fiber channels
WO2010013451A1 (en) Mimo transmission device and mimo transmission method
WO2004010608A3 (en) Noise compensation in satellite communications
WO2012122237A3 (en) Turn-up and long term operation of adaptive equalizer in optical
WO2002078206A3 (en) Bi-directional communication system with echo cancellation
EP1962437A4 (en) Method and apparatus for crosstalk reduction on digital subscriber lines
WO2003021852A3 (en) Shdsl over pots
US20070261094A1 (en) Asymmetrical directional coupler
WO2005117284A3 (en) Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk
WO2009094339A3 (en) Enabling flexibility of packet length in a communication protocol
WO2006087407A3 (en) Receiver for optical communications, comprising a nonlinear equaliser
WO2005038493A3 (en) Optical signal equalizer with adjustable linear filter
US20050152262A1 (en) Echo cancellation device for full duplex communication systems
EP1675288A3 (en) An arrangement for the transmission of a data signal in a cable television network
EP3679664A1 (en) Method and apparatus for antenna array calibration with interference reduction

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2005747768

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

WWP Wipo information: published in national office

Ref document number: 2005747768

Country of ref document: EP