WO2007074287A3 - Method for common mode rejection with differential line pairs - Google Patents

Method for common mode rejection with differential line pairs Download PDF

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Publication number
WO2007074287A3
WO2007074287A3 PCT/FR2006/051384 FR2006051384W WO2007074287A3 WO 2007074287 A3 WO2007074287 A3 WO 2007074287A3 FR 2006051384 W FR2006051384 W FR 2006051384W WO 2007074287 A3 WO2007074287 A3 WO 2007074287A3
Authority
WO
WIPO (PCT)
Prior art keywords
common mode
conductor
mode signal
common
line pairs
Prior art date
Application number
PCT/FR2006/051384
Other languages
French (fr)
Other versions
WO2007074287A2 (en
Inventor
Fahd Hassoun
Ahmed Zeddam
Original Assignee
France Telecom
Fahd Hassoun
Ahmed Zeddam
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 France Telecom, Fahd Hassoun, Ahmed Zeddam filed Critical France Telecom
Publication of WO2007074287A2 publication Critical patent/WO2007074287A2/en
Publication of WO2007074287A3 publication Critical patent/WO2007074287A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/30—Reducing interference caused by unbalance current in a normally balanced line

Abstract

The invention concerns a method for transmitting data in differential mode on a two-wired link using a common attenuation mode, corresponding connection device and computer programme. The invention concerns a method for transmitting data in differential mode on a link comprising at least two conductors, to a receiver equipment, for attenuating the effects of the common mode. In accordance with the invention, such a method includes a step of attenuating at least one common mode signal interfering with said data transmission, which consists, on each of said conductors, in: estimating by adaptive filtering of said common mode signal carried on said conductor; determining at least one parameter for adapting said conductor, for reconstructing said common mode signal estimated on said conductor; injecting in phase opposition said common mode signal reconstructed on said conductor.
PCT/FR2006/051384 2005-12-22 2006-12-19 Method for common mode rejection with differential line pairs WO2007074287A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0554012A FR2895628A1 (en) 2005-12-22 2005-12-22 Data e.g. voice, transmitting method for e.g. powerline transmission type modem, involves estimating common mode current on conductors, finding adaptation impedance to reconstruct current and injecting current in conductor in opposite phase
FR0554012 2005-12-22

Publications (2)

Publication Number Publication Date
WO2007074287A2 WO2007074287A2 (en) 2007-07-05
WO2007074287A3 true WO2007074287A3 (en) 2007-09-07

Family

ID=37103303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/051384 WO2007074287A2 (en) 2005-12-22 2006-12-19 Method for common mode rejection with differential line pairs

Country Status (2)

Country Link
FR (1) FR2895628A1 (en)
WO (1) WO2007074287A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2273658A1 (en) * 1999-06-07 2000-12-07 Tet Hin Yeap Method and apparatus for cancelling common mode noise in communications channels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2273658A1 (en) * 1999-06-07 2000-12-07 Tet Hin Yeap Method and apparatus for cancelling common mode noise in communications channels

Also Published As

Publication number Publication date
WO2007074287A2 (en) 2007-07-05
FR2895628A1 (en) 2007-06-29

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