WO1997020396A3 - Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission - Google Patents

Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission Download PDF

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Publication number
WO1997020396A3
WO1997020396A3 PCT/US1996/018682 US9618682W WO9720396A3 WO 1997020396 A3 WO1997020396 A3 WO 1997020396A3 US 9618682 W US9618682 W US 9618682W WO 9720396 A3 WO9720396 A3 WO 9720396A3
Authority
WO
WIPO (PCT)
Prior art keywords
subscriber loop
telephone service
path
transmission
transmission path
Prior art date
Application number
PCT/US1996/018682
Other languages
French (fr)
Other versions
WO1997020396A2 (en
Inventor
Mark A Russell
David B Ribner
Original Assignee
Analog Devices Inc
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 Analog Devices Inc filed Critical Analog Devices Inc
Priority to DE69628189T priority Critical patent/DE69628189T2/en
Priority to EP96940835A priority patent/EP0864219B1/en
Priority to AU10797/97A priority patent/AU1079797A/en
Publication of WO1997020396A2 publication Critical patent/WO1997020396A2/en
Publication of WO1997020396A3 publication Critical patent/WO1997020396A3/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13174—Data transmission, file transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13199—Modem, modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13305—Transistors, semiconductors in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1332—Logic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Filters And Equalizers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

A data transmission system including a telephone service subscriber loop utilized for transmission of data including telephone service signals; a splitter operable for splitting the subscriber loop into a first transmission path including a low pass filter which accommodates a continuation of telephone service signal transmissions along the subscriber loop and a second transmission path, said second transmission path including a capacitive element for attenuating the telephone service signals; and a digital subscriber loop transceiver coupled to the second transmission path for implementing high rate digital data transmission over the subscriber loop, the transceiver including a frontend processing circuit having a transmit path and a receive path, at least said receive path comprising a high pass filter for further attenuating said telephone service signals. The capacitive element in the second transmission path and the high pass filter in the receive path of the transceiver frontend operate in conjunction to maintain transhybrid loss.
PCT/US1996/018682 1995-11-27 1996-11-20 Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission WO1997020396A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69628189T DE69628189T2 (en) 1995-11-27 1996-11-20 POTS DISTRIBUTOR ARRANGEMENT WITH IMPROVED TRANSHYBRID LOSS FOR DIGITAL SUBSCRIBER LOOP TRANSMISSION
EP96940835A EP0864219B1 (en) 1995-11-27 1996-11-20 Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission
AU10797/97A AU1079797A (en) 1995-11-27 1996-11-20 Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/562,981 1995-11-27
US08/562,981 US5757803A (en) 1995-11-27 1995-11-27 Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission

Publications (2)

Publication Number Publication Date
WO1997020396A2 WO1997020396A2 (en) 1997-06-05
WO1997020396A3 true WO1997020396A3 (en) 1997-07-10

Family

ID=24248592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/018682 WO1997020396A2 (en) 1995-11-27 1996-11-20 Pots splitter assembly with improved transhybrid loss for digital subscriber loop transmission

Country Status (5)

Country Link
US (1) US5757803A (en)
EP (1) EP0864219B1 (en)
AU (1) AU1079797A (en)
DE (1) DE69628189T2 (en)
WO (1) WO1997020396A2 (en)

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5790548A (en) * 1996-04-18 1998-08-04 Bell Atlantic Network Services, Inc. Universal access multimedia data network
DE29607357U1 (en) * 1996-04-23 1996-06-20 Siemens Ag Transmission system with high bit rate digital signal channels and a conventional telephony channel on symmetrical copper twin-wire lines
US5960036A (en) * 1996-11-04 1999-09-28 Motorola, Inc. Apparatus and method for auto-configuring a communication system
US5848150A (en) * 1997-02-26 1998-12-08 Paradyne Corporation Passive distributed filter system and method
US6065060A (en) * 1997-06-30 2000-05-16 Integrated Telecom Express Modular multiplicative data rate modem and method of operation
US5930340A (en) * 1997-07-07 1999-07-27 Advanced Micro Devices Device and method for isolating voice and data signals on a common carrier
US6314102B1 (en) * 1997-07-10 2001-11-06 Alcatel Telecommunications system for providing both narrowband and broadband services to subscribers
US5956323A (en) * 1997-07-30 1999-09-21 Nokia High Speed Access Products Inc. Power conservation for pots and modulated data transmission
IL121643A (en) * 1997-08-27 2000-07-16 Eci Telecom Ltd Apparatus and method for concurrent voice and data transmission
US6466588B1 (en) * 1997-09-18 2002-10-15 Globespanvirata, Inc. Apparatus for facilitating combined POTS and xDSL services at a customer premises
US6101216A (en) * 1997-10-03 2000-08-08 Rockwell International Corporation Splitterless digital subscriber line communication system
US6434620B1 (en) * 1998-08-27 2002-08-13 Alacritech, Inc. TCP/IP offload network interface device
US6067316A (en) * 1997-11-19 2000-05-23 Globespan, Inc. Circuit for combined xDSL and other services
GB9726037D0 (en) * 1997-12-09 1998-02-04 Northern Telecom Ltd Communications signal splitter
US6192109B1 (en) * 1997-12-24 2001-02-20 Globespan, Inc. Apparatus and method for improved DSL communication
US6996232B1 (en) * 1997-12-31 2006-02-07 Corning Cable Systems Llc XDSL splitter line module for network interface device
US6735245B1 (en) 1998-01-09 2004-05-11 Panasonic Communications Co., Ltd. Activation of multiple XDSL modems with channel probe
TW405321B (en) * 1998-01-09 2000-09-11 Matsushita Graphic Communic Activation of multiple xDSL modems with channel probe
SE9800249L (en) 1998-01-29 1999-07-30 Telia Ab Improvements to, or with regard to, telecommunications
SE511316C2 (en) * 1998-01-29 1999-09-13 Ericsson Telefon Ab L M Active impedance converter
SE514378C2 (en) * 1998-02-03 2001-02-19 Ericsson Telefon Ab L M Active impedance converter circuit and splitter and termination of a twisted pair lead
US6873652B1 (en) * 1998-04-01 2005-03-29 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with implicit channel probe
US6272219B1 (en) * 1998-04-01 2001-08-07 Terayon Communications Systems, Inc. Access network with an integrated splitter
US6418221B1 (en) * 1998-04-09 2002-07-09 Broadcom, Corp Signal coupler using low voltage filtering
GB2337657A (en) * 1998-05-21 1999-11-24 Motorola Inc ADSL interface circuit
US6137866A (en) * 1998-05-28 2000-10-24 Siecor Operations, Llc Indoor XDSL splitter assembly
FI981319A (en) * 1998-06-10 1999-12-11 Nokia Networks Oy Separation of narrowband and broadband services on a transmission connection
US6028867A (en) * 1998-06-15 2000-02-22 Covad Communications Group, Inc. System, method, and network for providing high speed remote access from any location connected by a local loop to a central office
US6480510B1 (en) 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
US6781981B1 (en) 1998-09-11 2004-08-24 Advanced Fibre Access Corporation Adding DSL services to a digital loop carrier system
WO2000019767A2 (en) * 1998-09-30 2000-04-06 Infineon Technologies Ag Line terminator unit for a subscriber line
SE514300C2 (en) * 1998-11-13 2001-02-05 Ericsson Telefon Ab L M Method and apparatus for securing an ADSL connection
WO2000030336A1 (en) * 1998-11-16 2000-05-25 Conexant Systems, Inc. Multifunction data access arrangement
US6351530B1 (en) 1998-11-16 2002-02-26 Conexant Systems, Inc. Modem having a digital high voltage isolation barrier
US6359973B1 (en) 1998-11-16 2002-03-19 Conexant Systems, Inc. Data access arrangement utilizing a serialized digital data path across an isolation barrier
US6240178B1 (en) 1998-11-30 2001-05-29 Qwest Communications International Inc. Bridged tap terminator
US6546100B1 (en) * 1998-12-03 2003-04-08 Nortel Networks Limited Load coil device
JP2002532953A (en) * 1998-12-08 2002-10-02 グローブスパン ヴィラタ、インコーポレイテッド Alternative configuration for ADSL systems operating in a time duplex noise environment
US6542540B1 (en) * 1998-12-21 2003-04-01 Analog Devices, Inc. Integrated analog adaptive equalizer
US6950459B1 (en) * 1999-01-08 2005-09-27 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with half duplex and full duplex procedures
US6658049B1 (en) * 1999-01-12 2003-12-02 Cisco Technology, Inc. xDSL repeater system and method
US6853647B1 (en) 1999-02-17 2005-02-08 Covad Communications Group, Inc. System method and network for providing high speed remote access from any location connected by a local loop to a central office
US6324268B1 (en) 1999-03-01 2001-11-27 Ericsson Inc. Splitter-less digital subscriber loop modems with improved throughput and voice and data separation
US6519339B1 (en) 1999-04-30 2003-02-11 Conexant Systems, Inc. Method of regulating power transfer across an isolation barrier
US6751254B1 (en) * 1999-05-05 2004-06-15 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with power control measurement
US6694470B1 (en) * 1999-05-21 2004-02-17 Panasonic Communications Co., Ltd. Retransmission procedure and apparatus for handshaking protocol
US6674843B1 (en) * 1999-05-28 2004-01-06 Cisco Technology, Inc. Apparatus system and method for enabling multi-frequency communication over a telephone network having a billing/tax tone
DE19933485B4 (en) * 1999-07-16 2004-05-13 Infineon Technologies Ag Line termination device for a telephone subscriber line
US6690677B1 (en) 1999-07-20 2004-02-10 Serconet Ltd. Network for telephony and data communication
DE19936079A1 (en) * 1999-07-30 2001-02-08 Siemens Ag Method for transmitting data at high transmission speeds in the feeder network
AU6931900A (en) * 1999-08-24 2001-03-19 2Wire, Inc. System and method for multiplexing a high frequency signal and a low frequency signal onto a single telephone wiring network
US6751315B1 (en) * 1999-10-18 2004-06-15 Silicon Labs Isolation, Inc. High bandwidth phone line transceiver with capacitor isolation
WO2001030060A1 (en) * 1999-10-20 2001-04-26 Legerity, Inc. Method and apparatus for separating data and voice signals
US6693916B1 (en) 1999-10-22 2004-02-17 Viadux, Inc. Method and system for combining symmetric DSL signals and voice signals
KR100310236B1 (en) * 1999-11-10 2001-11-02 -- Apparatus for spliting of asymmetric digital subscribe line system
ATE421841T1 (en) * 1999-11-19 2009-02-15 Alcatel Lucent TELEPHONE SYSTEM, CENTRAL EXCHANGE AND SEPARATOR FOR ANALOG TELEPHONE SIGNALS AND DIGITAL DATA SIGNALS
SE522639C2 (en) * 1999-11-23 2004-02-24 Ericsson Telefon Ab L M Method and apparatus for securing an ADSL connection
US7447305B2 (en) * 2000-01-27 2008-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for filtering of signals
US6826265B1 (en) 2000-02-16 2004-11-30 Paradyne Corporation DSL-ready pots device and method
US6738474B1 (en) 2000-02-23 2004-05-18 Eci Telecom, Ltd. System for providing pots splitters externally with respect to digital subscriber loop access multiplexers and remote terminal and central office equipment racks
US6574309B1 (en) 2000-03-01 2003-06-03 Turnstone Systems, Inc. Remotely actuated splittler bypass system and method
AUPQ635600A0 (en) * 2000-03-17 2000-04-15 Transcorp Systems Pty Ltd Digital data splitter with switch and automatic termination restoration
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
US6738418B1 (en) * 2000-04-03 2004-05-18 Virata Corporation Method and apparatus for adaptive data allocation in a multi-carrier communication system
US6285754B1 (en) * 2000-04-06 2001-09-04 2Wire, Inc. Odd-order low-pass pots device microfilter
IL135744A (en) 2000-04-18 2008-08-07 Mosaid Technologies Inc Telephone communication system over a single telephone line
US6842459B1 (en) 2000-04-19 2005-01-11 Serconet Ltd. Network combining wired and non-wired segments
GB2362063A (en) 2000-04-25 2001-11-07 Mitel Corp Connecting broadband voice and data signals to telephone systems
US6850618B1 (en) 2000-05-15 2005-02-01 Centillium Communications, Inc. Central office interface techniques for digital subscriber lines
IL152540A0 (en) * 2000-05-22 2003-05-29 Infineon Technologies Ag Termination device for a telephone line
US6829336B1 (en) 2000-05-30 2004-12-07 Cisco Technology, Inc. System and method for active filtering in a telecommunications network
US6785325B1 (en) 2000-06-07 2004-08-31 Nortel Networks Limited DSL splitter providing test access to an interconnected subscriber loop and method
US7139392B1 (en) * 2000-06-20 2006-11-21 Sbc Technology Resources, Inc. Device and method for suppressing DSL signal echo induced by bridgetap
EP1229711A1 (en) * 2001-02-02 2002-08-07 BRITISH TELECOMMUNICATIONS public limited company Advertising device
IL144158A (en) 2001-07-05 2011-06-30 Mosaid Technologies Inc Outlet for connecting an analog telephone set to a digital data network carrying voice signals in digital form
EP2523358A3 (en) 2001-10-11 2012-11-21 Mosaid Technologies Incorporated Outlet with analog signal adapter
DE10151949B4 (en) * 2001-10-22 2011-08-11 Lantiq Deutschland GmbH, 85579 Splitter circuitry
US6853724B2 (en) 2001-12-14 2005-02-08 Adc Dsl Systems, Inc. Cascade low-pass filter to improve xDSL band attenuation for POTS splitter
US6895089B2 (en) 2001-12-14 2005-05-17 Adc Dsl Systems, Inc. Pots splitter with line impedance matching
US7406117B2 (en) * 2002-03-21 2008-07-29 Westell Technologies, Inc. XDSL multi-hybrid modem with power spectral density shaping
KR20030082016A (en) * 2002-04-15 2003-10-22 임성호 Line terminator for very high-speed digital subscriber line
US20030198341A1 (en) * 2002-04-23 2003-10-23 Adc Dsl Systems, Inc. Integrated POTS/MLT card
IL154234A (en) 2003-01-30 2010-12-30 Mosaid Technologies Inc Method and system for providing dc power on local telephone lines
IL154921A (en) 2003-03-13 2011-02-28 Mosaid Technologies Inc Telephone system having multiple distinct sources and accessories therefor
IL157787A (en) 2003-09-07 2010-12-30 Mosaid Technologies Inc Modular outlet for data communications network
IL159838A0 (en) 2004-01-13 2004-06-20 Yehuda Binder Information device
IL161869A (en) 2004-05-06 2014-05-28 Serconet Ltd System and method for carrying a wireless based signal over wiring
US7072448B2 (en) * 2004-06-15 2006-07-04 Bellsouth Intellectual Property Corporation DSL tester
US7873058B2 (en) 2004-11-08 2011-01-18 Mosaid Technologies Incorporated Outlet with analog signal adapter, a method for use thereof and a network using said outlet
US7813451B2 (en) 2006-01-11 2010-10-12 Mobileaccess Networks Ltd. Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting
US8005206B1 (en) * 2007-03-15 2011-08-23 Bh Electronics, Inc. VDSL splitter
WO2009053910A2 (en) 2007-10-22 2009-04-30 Mobileaccess Networks Ltd. Communication system using low bandwidth wires
US8175649B2 (en) 2008-06-20 2012-05-08 Corning Mobileaccess Ltd Method and system for real time control of an active antenna over a distributed antenna system
CN102232191B (en) 2009-02-08 2015-07-08 康宁移动接入有限公司 Communication system using cables carrying Ethernet signals
WO2013142662A2 (en) 2012-03-23 2013-09-26 Corning Mobile Access Ltd. Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods
US9184960B1 (en) 2014-09-25 2015-11-10 Corning Optical Communications Wireless Ltd Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546212A (en) * 1984-03-08 1985-10-08 Crowder, Inc. Data/voice adapter for telephone network
EP0266151A2 (en) * 1986-10-31 1988-05-04 Unisys Corporation Method and apparatus for coupling computer work stations
EP0677938A1 (en) * 1994-04-14 1995-10-18 ALCATEL BELL Naamloze Vennootschap Signal coupler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875339A (en) * 1972-09-05 1975-04-01 I I Communications Inc Variable bandwidth voice and data telephone communication system
US4306116A (en) * 1979-12-03 1981-12-15 Intertel, Inc. Communications unit for voice and data
US4932022A (en) * 1987-10-07 1990-06-05 Telenova, Inc. Integrated voice and data telephone system
DE69432928T2 (en) * 1993-02-17 2004-05-13 Silicon Systems, Inc., Tustin TEMPERATURE COMPENSATION FOR TRANSHYBRID LOSS IN A MINIATURIZED DATA ACCESS ARRANGEMENT
US5440585A (en) * 1993-06-14 1995-08-08 At&T Corp. Applications of simultaneous analog and digital communication
US5408260A (en) * 1994-01-11 1995-04-18 Northern Telecom Limited Customer premises ADSL signal distribution arrangement
US5623543A (en) * 1994-02-01 1997-04-22 British Telecommunications Public Limited Company Two port signalling voltages filter arrangement
US5528630A (en) * 1994-04-20 1996-06-18 At&T Corp. Coupler for communication systems which utilize more than one frequency band

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546212A (en) * 1984-03-08 1985-10-08 Crowder, Inc. Data/voice adapter for telephone network
EP0266151A2 (en) * 1986-10-31 1988-05-04 Unisys Corporation Method and apparatus for coupling computer work stations
EP0677938A1 (en) * 1994-04-14 1995-10-18 ALCATEL BELL Naamloze Vennootschap Signal coupler

Also Published As

Publication number Publication date
DE69628189D1 (en) 2003-06-18
US5757803A (en) 1998-05-26
EP0864219A2 (en) 1998-09-16
DE69628189T2 (en) 2004-04-01
EP0864219B1 (en) 2003-05-14
AU1079797A (en) 1997-06-19
WO1997020396A2 (en) 1997-06-05

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