SE9800299D0 - Active splitter - Google Patents

Active splitter

Info

Publication number
SE9800299D0
SE9800299D0 SE9800299A SE9800299A SE9800299D0 SE 9800299 D0 SE9800299 D0 SE 9800299D0 SE 9800299 A SE9800299 A SE 9800299A SE 9800299 A SE9800299 A SE 9800299A SE 9800299 D0 SE9800299 D0 SE 9800299D0
Authority
SE
Sweden
Prior art keywords
coil
pass filter
subscriber line
capacitor
frequency band
Prior art date
Application number
SE9800299A
Other languages
Swedish (sv)
Other versions
SE514378C2 (en
SE9800299L (en
Inventor
Stig Andersson
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.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9800299A priority Critical patent/SE514378C2/en
Publication of SE9800299D0 publication Critical patent/SE9800299D0/en
Priority to AU26470/99A priority patent/AU2647099A/en
Priority to PCT/SE1999/000089 priority patent/WO1999040716A2/en
Publication of SE9800299L publication Critical patent/SE9800299L/en
Publication of SE514378C2 publication Critical patent/SE514378C2/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/40—Impedance converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Abstract

The invention relates to an active impedance converter circuit for interconnecting a high pass filter and a low pass filter. The high pass filter comprises a transmission line bridge with three co-operating transformer inductor coils. A first coil (17) is connected to a high frequency modem (11) via a first and a second capacitor (20). A second coil (18) is connected in series with a third coil (19) via a third capacitor (20). The subscriber line (10) is connected over the second and third coils (18, 19). The invention also relates to a splitter for splitting a subscriber line into a first transmission branch and a second transmission branch. The invention also comprises a termination of a twisted pair telephone transmission line for delivering two-way service including low frequency band telephone signals and high frequency band digital subscriber line signals.
SE9800299A 1998-02-03 1998-02-03 Active impedance converter circuit and splitter and termination of a twisted pair lead SE514378C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9800299A SE514378C2 (en) 1998-02-03 1998-02-03 Active impedance converter circuit and splitter and termination of a twisted pair lead
AU26470/99A AU2647099A (en) 1998-02-03 1999-01-22 Active splitter
PCT/SE1999/000089 WO1999040716A2 (en) 1998-02-03 1999-01-22 Active splitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800299A SE514378C2 (en) 1998-02-03 1998-02-03 Active impedance converter circuit and splitter and termination of a twisted pair lead

Publications (3)

Publication Number Publication Date
SE9800299D0 true SE9800299D0 (en) 1998-02-03
SE9800299L SE9800299L (en) 1999-08-04
SE514378C2 SE514378C2 (en) 2001-02-19

Family

ID=20410062

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800299A SE514378C2 (en) 1998-02-03 1998-02-03 Active impedance converter circuit and splitter and termination of a twisted pair lead

Country Status (3)

Country Link
AU (1) AU2647099A (en)
SE (1) SE514378C2 (en)
WO (1) WO1999040716A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864867B1 (en) * 2004-01-05 2006-04-28 Europe Adsl Leacom Fastnet Lab FILTER FOR TELEPHONE LINES ADAPTED FOR ADSL TRANSMISSION
ES2372158B1 (en) 2009-10-20 2012-09-27 Telefónica, S.A. ACTIVE MICROFILTER FOR VDSL2 COMMUNICATION STANDARD.
RU2598330C2 (en) * 2015-01-27 2016-09-20 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский национальный исследовательский государственный университет им. Н.Г. Чернышевского" Higher (k-th) order two-terminal circuit simulator

Family Cites Families (5)

* 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
EP0677938A1 (en) * 1994-04-14 1995-10-18 ALCATEL BELL Naamloze Vennootschap Signal coupler
US5757803A (en) * 1995-11-27 1998-05-26 Analog Devices, Inc. Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission
US5781728A (en) * 1996-03-15 1998-07-14 Motorola Inc. Flexible asymmetrical digital subscriber line ADSL transmitter, remote terminal using same, and method therefor
US5668857A (en) * 1996-03-29 1997-09-16 Netspeed, Inc. Communication server apparatus and method

Also Published As

Publication number Publication date
SE514378C2 (en) 2001-02-19
SE9800299L (en) 1999-08-04
WO1999040716A3 (en) 2000-08-24
AU2647099A (en) 1999-08-23
WO1999040716A2 (en) 1999-08-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed