AU2003240763A1 - Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels - Google Patents

Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels

Info

Publication number
AU2003240763A1
AU2003240763A1 AU2003240763A AU2003240763A AU2003240763A1 AU 2003240763 A1 AU2003240763 A1 AU 2003240763A1 AU 2003240763 A AU2003240763 A AU 2003240763A AU 2003240763 A AU2003240763 A AU 2003240763A AU 2003240763 A1 AU2003240763 A1 AU 2003240763A1
Authority
AU
Australia
Prior art keywords
filtering device
integrated circuit
decoupling
low
application
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2003240763A
Inventor
Christina De Raad
Herve Dedieu
Francois Krummenacher
Guy-Michel Nallatamby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laboratoire Europeen ADSL SAS
Original Assignee
Laboratoire Europeen ADSL SAS
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 Laboratoire Europeen ADSL SAS filed Critical Laboratoire Europeen ADSL SAS
Publication of AU2003240763A1 publication Critical patent/AU2003240763A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems

Abstract

The invention relates to an application-specific integrated circuit (ASIC (305; 306)) for a low-pass filtering device (300) used for decoupling xDSL channels on a telephone line (Li). The inventive integrated circuit is provided with an architecture that is suitable for ASICs (305; 306) such that said ASICs are supplied with energy directly by continuous signals that circulate on the telephone line, whereby each ASIC (305; 306) of the filtering device (300) can comprise an active rectifying circuit (401), a circuit achieving an admittance of the fourth order (402), an impedance-matching circuit (403), and a circuit detecting off-hook/hang-up operations (404).
AU2003240763A 2002-04-05 2003-04-07 Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels Abandoned AU2003240763A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0204295A FR2838255B1 (en) 2002-04-05 2002-04-05 INTEGRATED CIRCUIT WITH SPECIFIC APPLICATION FOR LOW-PASS FILTERING DEVICE FOR DECOUPLING OF XDSL CHANNELS
FR02/04295 2002-04-05
PCT/EP2003/050093 WO2003085829A1 (en) 2002-04-05 2003-04-07 Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels

Publications (1)

Publication Number Publication Date
AU2003240763A1 true AU2003240763A1 (en) 2003-10-20

Family

ID=28052159

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003240763A Abandoned AU2003240763A1 (en) 2002-04-05 2003-04-07 Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels

Country Status (8)

Country Link
EP (1) EP1493228B1 (en)
CN (1) CN100449941C (en)
AT (1) ATE410825T1 (en)
AU (1) AU2003240763A1 (en)
DE (1) DE60323956D1 (en)
ES (1) ES2315499T3 (en)
FR (1) FR2838255B1 (en)
WO (1) WO2003085829A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1903674A1 (en) * 2006-09-22 2008-03-26 Alcatel Lucent Multiple order low pass filter for an xDSL splitter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623543A (en) * 1994-02-01 1997-04-22 British Telecommunications Public Limited Company Two port signalling voltages filter arrangement
US5699421A (en) * 1995-05-31 1997-12-16 Casio Phonemate, Inc. Telephone answering device with low cost dual tone multi-frequency detector
EP0942578A3 (en) * 1998-03-12 2002-01-30 Westell Technologies, Inc. Dual-mode filter for ADSL
ES2271983T3 (en) * 1998-06-26 2007-04-16 Alcatel PROVISION OF FILTER APPLICABLE TO ADSL SIGNAL SEPARATORS.
US6278769B1 (en) * 1998-11-25 2001-08-21 Westell Technologies, Inc. Signaling method for invoking a test mode in a network interface unit
US6549616B1 (en) * 2000-03-20 2003-04-15 Serconet Ltd. Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets

Also Published As

Publication number Publication date
ES2315499T3 (en) 2009-04-01
FR2838255B1 (en) 2004-06-18
WO2003085829A1 (en) 2003-10-16
CN1659781A (en) 2005-08-24
EP1493228A1 (en) 2005-01-05
FR2838255A1 (en) 2003-10-10
ATE410825T1 (en) 2008-10-15
EP1493228B1 (en) 2008-10-08
CN100449941C (en) 2009-01-07
DE60323956D1 (en) 2008-11-20

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase