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RU98104084A - BROADBAND DIGITAL SUBSCRIBER SYSTEMS - Google Patents

BROADBAND DIGITAL SUBSCRIBER SYSTEMS

Info

Publication number
RU98104084A
RU98104084A RU98104084/09A RU98104084A RU98104084A RU 98104084 A RU98104084 A RU 98104084A RU 98104084/09 A RU98104084/09 A RU 98104084/09A RU 98104084 A RU98104084 A RU 98104084A RU 98104084 A RU98104084 A RU 98104084A
Authority
RU
Russia
Prior art keywords
digital subscriber
subscriber loop
telecommunication system
broadband digital
circuits
Prior art date
Application number
RU98104084/09A
Other languages
Russian (ru)
Inventor
Дуглас Фортьер Джон (GB)
Дуглас Фортьер Джон
Вильямс Говард (GB)
Вильямс Говард
Original Assignee
Джи-Пи-Ти Лимитед (GB)
Джи-Пи-Ти Лимитед
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 Джи-Пи-Ти Лимитед (GB), Джи-Пи-Ти Лимитед filed Critical Джи-Пи-Ти Лимитед (GB)
Publication of RU98104084A publication Critical patent/RU98104084A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0471—Terminal access circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0046—User Network Interface
    • H04J2203/005—Terminal equipment, e.g. codecs, synch

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Claims (3)

1. Телекоммуникационная система, содержащая схемы широкополосного цифрового абонентского шлейфа на каждом конце канала связи, выполненная с возможностью передачи телефонных сигналов посредством их преобразования в цифровую форму и передачи с сигналами цифрового абонентского шлейфа, включающая средство, с помощью которого в случае отказа одной из схем цифрового абонентского шлейфа или связанного с ней источника питания, телефонный сигнал автоматически коммутируется для обеспечения обхода схем цифрового абонентского шлейфа.1. A telecommunication system comprising a broadband digital subscriber loop circuit at each end of the communication channel, configured to transmit telephone signals by digitalizing them and transmitting digital subscriber loop signals, including means by which, in the event of failure of one of the digital circuits a subscriber loop or an associated power source, the telephone signal is automatically switched to provide a bypass of digital subscriber loop circuits. 2. Телекоммуникационная система по п. 1, отличающаяся тем, что в схемах цифрового абонентского шлейфа используется дискретная многотональная модуляция. 2. The telecommunication system according to claim 1, characterized in that discrete multi-tone modulation is used in digital subscriber loop circuits. 3. Телекоммуникационная система по п. 1 или 2, отличающаяся тем, что телефонные сигналы модулируются на одной несущей в сигнале дискретной многотональной модуляции. 3. The telecommunication system according to claim 1 or 2, characterized in that the telephone signals are modulated on a single carrier in a discrete multi-tone modulation signal.
RU98104084/09A 1996-06-07 1997-06-09 BROADBAND DIGITAL SUBSCRIBER SYSTEMS RU98104084A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9611952,4 1996-06-07
GBGB9611952.4A GB9611952D0 (en) 1996-06-07 1996-06-07 Encoding telephony onto DMT carriers

Publications (1)

Publication Number Publication Date
RU98104084A true RU98104084A (en) 2000-02-20

Family

ID=10794929

Family Applications (1)

Application Number Title Priority Date Filing Date
RU98104084/09A RU98104084A (en) 1996-06-07 1997-06-09 BROADBAND DIGITAL SUBSCRIBER SYSTEMS

Country Status (8)

Country Link
EP (1) EP0843948A1 (en)
JP (1) JPH11510985A (en)
CN (1) CN1195453A (en)
AU (1) AU3039797A (en)
GB (2) GB9611952D0 (en)
NO (1) NO980503L (en)
RU (1) RU98104084A (en)
WO (1) WO1997047157A1 (en)

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US6584197B1 (en) * 1998-12-03 2003-06-24 Adtran Inc. Power-limited remote termination converter with wetting current and emergency power operation for digital data transmission equipment
US6335936B1 (en) * 1999-04-22 2002-01-01 Ameritech Corporation Wide area communication networking
US6512764B1 (en) 1999-07-16 2003-01-28 General Bandwidth Inc. Method and apparatus for providing voice signals to and from a telecommunications switch
DE50011861D1 (en) * 1999-07-28 2006-01-19 Infineon Technologies Ag METHOD AND DEVICE FOR THE COMMON TRANSMISSION OF ISDN AND ADSL DATA
US6272209B1 (en) * 1999-08-16 2001-08-07 Nortel Networks Limited Lifeline telephony provision for voice over digital subscriber line
US6647117B1 (en) * 1999-08-16 2003-11-11 Nortel Networks Limited Continuity of voice carried over DSL during power failure
CA2281356A1 (en) * 1999-09-01 2001-03-01 Andreas Weirich Enhanced line card and packetizing cpe for lifeline packet voice telephony
US6683951B1 (en) * 1999-09-13 2004-01-27 Nortel Networks Limited Method and apparatus for providing service to VODSL derived telephone lines during power interruptions
US6466573B1 (en) 2000-02-11 2002-10-15 General Bandwidth Inc. System and method for communicating telecommunication information between a telecommunication switch and customer premises equipment
US6404763B1 (en) 2000-02-11 2002-06-11 General Bandwidth Inc. System and method for communicating telecommunication information between network equipment and a plurality of local loop circuits
US6512762B1 (en) * 2000-02-11 2003-01-28 General Bandwidth, Inc. System and method for communicating telecommunication information between customer premises equipment and network equipment
US6574313B1 (en) 2000-05-12 2003-06-03 Turnstone Systems, Inc. Voice over DSL method and system for supporting a lifeline
US6546089B1 (en) * 2000-05-12 2003-04-08 Turnstone Systems, Inc. Method and system for supporting a lifeline associated with voice over DSL
FR2809909B1 (en) * 2000-05-30 2003-05-16 Sagem METHOD FOR SECURING A TELEPHONE LINK
EP1175076A3 (en) * 2000-07-18 2004-02-04 Alcatel USA Sourcing, L.P. System and method for providing lifeline pots service on intrinsically none-lifeline pots circuits
EP1176792A1 (en) * 2000-07-24 2002-01-30 Alcatel Method and apparatus for providing an all digital loop with power-optimised mode
US7675900B1 (en) 2000-10-09 2010-03-09 Genband Inc. System and method for interfacing between signaling protocols
US6839342B1 (en) 2000-10-09 2005-01-04 General Bandwidth Inc. System and method for interfacing signaling information and voice traffic
US7385963B1 (en) 2000-11-28 2008-06-10 Genband Inc. System and method for communicating telecommunication information from a telecommunication network to a broadband network
US7184427B1 (en) 2000-11-28 2007-02-27 Genband Inc. System and method for communicating telecommunication information from a broadband network to a telecommunication network
US20020101817A1 (en) * 2001-01-31 2002-08-01 Joe Teixeira System and method for providing analog telephone service when voice over IP over SDSL service is interrupted due to power failure
US7254110B2 (en) * 2001-03-28 2007-08-07 Wi-Lan, Inc. Pots extender for voice fallback in a subscriber line
US6526046B1 (en) 2001-04-24 2003-02-25 General Bandwidth Inc. System and method for communicating telecommunication information using asynchronous transfer mode
US7149182B1 (en) 2001-04-24 2006-12-12 Genband Inc. System and method for providing lifeline telecommunication service
US6879667B1 (en) 2001-05-07 2005-04-12 General Bandwidth Inc. System and method for interfacing telephony voice signals with a broadband access network
US6996134B1 (en) 2001-05-07 2006-02-07 General Bandwidth Inc. System and method for reliably communicating telecommunication information
US7245583B1 (en) 2001-09-04 2007-07-17 Genband Inc. System and method for providing lifeline telecommunication service to line-powered customer premises equipment
US7170854B1 (en) 2001-10-02 2007-01-30 Genband Inc. System and method using switch fabric to support redundant network ports
GB2386286A (en) * 2002-03-07 2003-09-10 Dataflex Design Comm Ltd Combined VoDSL and POTS system with integrated access device/VoDSL to POTS converter and telephones connected to common line via isolating filters
US7239628B1 (en) 2002-05-01 2007-07-03 Genband Inc. Line-powered network interface device
US6795706B1 (en) * 2003-04-10 2004-09-21 Benq Corporation Efficient direct call database management for mobile devices with limited non-volatile memory
EP1988664A1 (en) * 2007-04-30 2008-11-05 British Telecommunications Public Limited Company Communications network
DE102012005190B4 (en) * 2012-03-16 2017-08-31 Deutsche Telekom Ag Switching device, terminal connecting device and method for performing a mode change of a subscriber line
CN107078912B (en) 2014-08-20 2020-10-09 英国电讯有限公司 Telecommunications local distribution network, method of operating the same and customer premises equipment

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US4381427A (en) * 1981-06-16 1983-04-26 Northern Telecom Limited Subscriber loop system for voice and data
JPS60146597A (en) * 1984-01-10 1985-08-02 Nippon Telegr & Teleph Corp <Ntt> Control system of subscriber's controller
US4740963A (en) * 1986-01-30 1988-04-26 Lear Siegler, Inc. Voice and data communication system
JPS62281553A (en) * 1986-05-29 1987-12-07 Fujitsu Ltd How to bypass line termination equipment
US4853949A (en) * 1988-03-24 1989-08-01 Rockwell International Corporation Fail safe voice system for integrated services for digital network subscribers
US5142571A (en) * 1988-10-19 1992-08-25 Fujitsu Limited Digital telephone set having an emergency switching function and communication system having the same
US5216704A (en) * 1991-06-12 1993-06-01 Coherent Communications Systems Corp. Method for remote power fail detection and maintaining continuous operation for data and voice devices operating over local loops
US5418776A (en) * 1993-02-26 1995-05-23 At&T Corp. Emergency local switching
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US5448635A (en) * 1993-06-30 1995-09-05 International Business Machines Corporation Wiring scheme and network adapter with digital and analog outputs to allow old pots coexistence with ISDN
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ATE201947T1 (en) * 1995-04-24 2001-06-15 Cit Alcatel METHOD, INTERFACE MODULES AND TELEPHONE NETWORK FOR MULTIPLEXING AND DEMULTIPLEXING AN ANALOG MTS (MESSAGE TELEPHONE SERVICE) SIGNAL AND AN ADSL (ASYMMETRIC DIGITAL SUBSCRIBE LINE) DATA STREAM

Also Published As

Publication number Publication date
GB9611952D0 (en) 1996-08-07
NO980503D0 (en) 1998-02-05
JPH11510985A (en) 1999-09-21
WO1997047157A1 (en) 1997-12-11
GB2313979A (en) 1997-12-10
AU3039797A (en) 1998-01-05
CN1195453A (en) 1998-10-07
EP0843948A1 (en) 1998-05-27
GB9711785D0 (en) 1997-08-06
NO980503L (en) 1998-04-06

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Legal Events

Date Code Title Description
FA93 Acknowledgement of application withdrawn (no request for examination)

Effective date: 20000610