WO1999040716A3 - Active splitter - Google Patents

Active splitter Download PDF

Info

Publication number
WO1999040716A3
WO1999040716A3 PCT/SE1999/000089 SE9900089W WO9940716A3 WO 1999040716 A3 WO1999040716 A3 WO 1999040716A3 SE 9900089 W SE9900089 W SE 9900089W WO 9940716 A3 WO9940716 A3 WO 9940716A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil
pass filter
subscriber line
capacitor
frequency band
Prior art date
Application number
PCT/SE1999/000089
Other languages
French (fr)
Other versions
WO1999040716A2 (en
Inventor
Stig Andersson
Original Assignee
Ericsson Telefon Ab L M
Stig Andersson
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, Stig Andersson filed Critical Ericsson Telefon Ab L M
Priority to AU26470/99A priority Critical patent/AU2647099A/en
Publication of WO1999040716A2 publication Critical patent/WO1999040716A2/en
Publication of WO1999040716A3 publication Critical patent/WO1999040716A3/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.
PCT/SE1999/000089 1998-02-03 1999-01-22 Active splitter WO1999040716A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU26470/99A AU2647099A (en) 1998-02-03 1999-01-22 Active splitter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9800299-1 1998-02-03
SE9800299A SE514378C2 (en) 1998-02-03 1998-02-03 Active impedance converter circuit and splitter and termination of a twisted pair lead

Publications (2)

Publication Number Publication Date
WO1999040716A2 WO1999040716A2 (en) 1999-08-12
WO1999040716A3 true WO1999040716A3 (en) 2000-08-24

Family

ID=20410062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/000089 WO1999040716A2 (en) 1998-02-03 1999-01-22 Active splitter

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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021488A1 (en) * 1994-02-01 1995-08-10 British Telecommunications Public Limited Company Filtering
EP0677938A1 (en) * 1994-04-14 1995-10-18 ALCATEL BELL Naamloze Vennootschap Signal coupler
WO1997020396A2 (en) * 1995-11-27 1997-06-05 Analog Devices, Inc. Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission
US5668857A (en) * 1996-03-29 1997-09-16 Netspeed, Inc. Communication server apparatus and method
EP0795977A2 (en) * 1996-03-15 1997-09-17 Motorola, Inc. Method of transmitting an ADSL signal simultaneously with an ISDN signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021488A1 (en) * 1994-02-01 1995-08-10 British Telecommunications Public Limited Company Filtering
EP0677938A1 (en) * 1994-04-14 1995-10-18 ALCATEL BELL Naamloze Vennootschap Signal coupler
WO1997020396A2 (en) * 1995-11-27 1997-06-05 Analog Devices, Inc. Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission
EP0795977A2 (en) * 1996-03-15 1997-09-17 Motorola, Inc. Method of transmitting an ADSL signal simultaneously with an ISDN signal
US5668857A (en) * 1996-03-29 1997-09-16 Netspeed, Inc. Communication server apparatus and method

Also Published As

Publication number Publication date
WO1999040716A2 (en) 1999-08-12
SE9800299D0 (en) 1998-02-03
SE9800299L (en) 1999-08-04
SE514378C2 (en) 2001-02-19
AU2647099A (en) 1999-08-23

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