ATE208546T1 - Verfahren und vorrichtung zur erzeugung eines signals zum lernen von linienstörungen in einem datenkommunikationssystem - Google Patents

Verfahren und vorrichtung zur erzeugung eines signals zum lernen von linienstörungen in einem datenkommunikationssystem

Info

Publication number
ATE208546T1
ATE208546T1 AT98943473T AT98943473T ATE208546T1 AT E208546 T1 ATE208546 T1 AT E208546T1 AT 98943473 T AT98943473 T AT 98943473T AT 98943473 T AT98943473 T AT 98943473T AT E208546 T1 ATE208546 T1 AT E208546T1
Authority
AT
Austria
Prior art keywords
modem
signal
synchronization signal
programmable
learning
Prior art date
Application number
AT98943473T
Other languages
English (en)
Inventor
Sverrir Olafsson
Original Assignee
Conexant Systems 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27129854&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE208546(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US08/922,851 external-priority patent/US6212247B1/en
Application filed by Conexant Systems Inc filed Critical Conexant Systems Inc
Application granted granted Critical
Publication of ATE208546T1 publication Critical patent/ATE208546T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT98943473T 1997-09-03 1998-08-31 Verfahren und vorrichtung zur erzeugung eines signals zum lernen von linienstörungen in einem datenkommunikationssystem ATE208546T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/922,851 US6212247B1 (en) 1997-09-03 1997-09-03 Method and apparatus for generating a programmable synchronization signal for a data communication system
US08/969,971 US6332009B2 (en) 1997-09-03 1997-11-13 Method and apparatus for generating a line impairment learning signal for a data communication system
PCT/US1998/017964 WO1999012267A2 (en) 1997-09-03 1998-08-31 Method and apparatus for generating a line impairment learning signal for a data communication system

Publications (1)

Publication Number Publication Date
ATE208546T1 true ATE208546T1 (de) 2001-11-15

Family

ID=27129854

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98943473T ATE208546T1 (de) 1997-09-03 1998-08-31 Verfahren und vorrichtung zur erzeugung eines signals zum lernen von linienstörungen in einem datenkommunikationssystem

Country Status (7)

Country Link
US (2) US6332009B2 (de)
EP (1) EP1013039B1 (de)
JP (1) JP3445782B2 (de)
AT (1) ATE208546T1 (de)
AU (1) AU9126298A (de)
DE (1) DE69802423T2 (de)
WO (1) WO1999012267A2 (de)

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WO1998037657A2 (en) * 1997-02-20 1998-08-27 3Com Corp High speed communications system for analog subscriber connections
WO2000007353A1 (en) * 1998-07-28 2000-02-10 Conexant Systems, Inc. Method and apparatus for detecting and determining characteristics of a digital channel in a data communication system
KR100455275B1 (ko) * 1998-10-14 2004-12-17 삼성전자주식회사 햄라디오 간섭 잡음 제거 디지털 가입자선 시스템 및 그 방법
EP1001579A1 (de) 1998-11-10 2000-05-17 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Bestimmung der Eigenschaften eines Übertragungskanals
US6751254B1 (en) * 1999-05-05 2004-06-15 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with power control measurement
DE19922172B4 (de) * 1999-05-12 2005-06-02 Infineon Technologies Ag Verfahren und Vorrichtung zum Erkennen und Korrigieren von digitalen PCM-Codewörtern innerhalb eines übertragenen Datenstroms
EP1605620B1 (de) 1999-05-21 2008-06-11 Fujitsu Limited Digitales Teilnehmerleitungsverfahren, -gerät und -system unter Verwendung synchroner Verarbeitung
JP3650390B2 (ja) * 1999-05-21 2005-05-18 富士通株式会社 ディジタル加入者線伝送方法及びｘＤＳＬ装置
US7190727B1 (en) 1999-07-31 2007-03-13 Broadcom Corporation Categorization of impairments affecting a communication channel
AU6616500A (en) * 1999-07-31 2001-03-13 Altocom, Inc. Digital impairment compensation for v.90 modem
US7203248B1 (en) 1999-07-31 2007-04-10 Broadcom Corporation Impairment sensitive selection of constellation points for communication across a channel
US7570724B1 (en) * 1999-10-14 2009-08-04 Pluris, Inc. Method of link word synchronization
US6901107B1 (en) * 1999-10-29 2005-05-31 International Business Machines Corporation Systems, methods, and computer program products for generating a digital impairment learning signal having low energy content at direct current and Nyquist frequencies
US6266376B1 (en) * 2000-02-04 2001-07-24 Motorola, Inc. System and method for adjusting PCM data frames for robbed bit signaling in a telephone network
US7106821B2 (en) * 2000-03-15 2006-09-12 Sony Corporation Data modulation method, data modulation device and communication device
US6940913B2 (en) * 2000-04-04 2005-09-06 Tioga Technologies, Inc. Communication start-up with variant spectral density mask
US6785326B1 (en) * 2000-08-07 2004-08-31 Freescale Semiconductor, Inc. Method and apparatus for detecting and compensating digital losses in a communications network
US6560277B2 (en) * 2001-02-09 2003-05-06 Pc Tel, Inc. Distinguishing between final coding of received signals in a PCM modem
US7031400B2 (en) * 2001-03-30 2006-04-18 Texas Instruments Incorporated Method of selecting a PCM modem signal constellation in relation to channel impairments
US7079210B2 (en) * 2001-11-22 2006-07-18 Samsung Electronics Co., Ltd. Liquid crystal display and thin film transistor array panel
US7376157B1 (en) * 2002-03-08 2008-05-20 Centillium Communications, Inc. Synchronizing ADSL Annex C transceivers to TTR
GB2396493B (en) * 2002-12-17 2006-01-04 Thales Plc Communications system
US7120854B2 (en) * 2003-08-18 2006-10-10 Texas Instruments Incorporated Wireless access modem having downstream channel resynchronization method
JP3947876B2 (ja) * 2004-02-03 2007-07-25 Ｎｅｃアクセステクニカ株式会社 Ｐｃｍ符号を用いたデータ伝送システムおよび方法
US7813382B2 (en) 2005-09-30 2010-10-12 Robert Bosch Gmbh Method and system for time synchronization in communication networks
US11102735B2 (en) * 2016-02-17 2021-08-24 Samsung Electronics Co., Ltd. Method and device performing communication in wireless communication system

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US4411007A (en) * 1981-04-29 1983-10-18 The Manitoba Telephone System Distributed network synchronization system
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US5117424A (en) * 1989-07-20 1992-05-26 Electrocom Automation L.P. Method and apparatus for setting clock signals to predetermined phases at remote broadcast sites in simulcast systems
US5077794A (en) * 1989-11-16 1991-12-31 Verilink Corporation Dual framing bit sequence alignment apparatus and method
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US5394437A (en) 1992-10-20 1995-02-28 At&T Corp. High-speed modem synchronized to a remote CODEC
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US5528625A (en) 1994-01-03 1996-06-18 At&T Corp. High speed quantization-level-sampling modem with equalization arrangement
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WO1998037657A2 (en) 1997-02-20 1998-08-27 3Com Corp High speed communications system for analog subscriber connections
EP0916202B1 (de) 1997-03-07 2001-08-29 3Com Corporation System und verfahren zur bestimmung der end-zu-end-eigenschaften eines kommunikationskanals
US5825823A (en) 1997-06-06 1998-10-20 General Datacomm, Inc. PCM channel diagnosis

Also Published As

Publication number Publication date
US20010038673A1 (en) 2001-11-08
EP1013039B1 (de) 2001-11-07
US6504886B1 (en) 2003-01-07
WO1999012267A3 (en) 1999-06-03
AU9126298A (en) 1999-03-22
WO1999012267A2 (en) 1999-03-11
DE69802423T2 (de) 2002-07-18
EP1013039A2 (de) 2000-06-28
US6332009B2 (en) 2001-12-18
JP3445782B2 (ja) 2003-09-08
DE69802423D1 (de) 2001-12-13
JP2001515292A (ja) 2001-09-18

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