DE69802423D1 - 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
DE69802423D1
DE69802423D1 DE69802423T DE69802423T DE69802423D1 DE 69802423 D1 DE69802423 D1 DE 69802423D1 DE 69802423 T DE69802423 T DE 69802423T DE 69802423 T DE69802423 T DE 69802423T DE 69802423 D1 DE69802423 D1 DE 69802423D1
Authority
DE
Germany
Prior art keywords
modem
signal
synchronization signal
programmable
learning
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69802423T
Other languages
English (en)
Other versions
DE69802423T2 (de
Inventor
Sverrir Olafsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
V-Dot Technologies Tyler Tex Us LLC
Original Assignee
Conexant Systems LLC
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=DE69802423(D1) "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 LLC filed Critical Conexant Systems LLC
Application granted granted Critical
Publication of DE69802423D1 publication Critical patent/DE69802423D1/de
Publication of DE69802423T2 publication Critical patent/DE69802423T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
DE69802423T 1997-09-03 1998-08-31 Verfahren und vorrichtung zur erzeugung eines signals zum lernen von linienstörungen in einem datenkommunikationssystem Expired - Lifetime DE69802423T2 (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 (2)

Publication Number Publication Date
DE69802423D1 true DE69802423D1 (de) 2001-12-13
DE69802423T2 DE69802423T2 (de) 2002-07-18

Family

ID=27129854

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69802423T Expired - Lifetime DE69802423T2 (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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US3534264A (en) * 1966-04-15 1970-10-13 Ibm Adaptive digital communication system
JPS5292413A (en) * 1976-01-30 1977-08-03 Toshiba Corp Data transfer system
US4411007A (en) * 1981-04-29 1983-10-18 The Manitoba Telephone System Distributed network synchronization system
US4445175A (en) * 1981-09-14 1984-04-24 Motorola, Inc. Supervisory remote control system employing pseudorandom sequence
US4841526A (en) * 1984-05-25 1989-06-20 Wilson Jon C Data communications system
JPS63136852A (ja) * 1986-11-28 1988-06-09 Sony Corp 信号伝送システム
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
AU701274B2 (en) 1994-12-09 1999-01-21 Brent Townshend High speed communications system for analog subscriber connections
KR0164373B1 (ko) * 1995-03-31 1999-02-01 김광호 이동국간 통화로 설정방법
US5822328A (en) 1996-05-15 1998-10-13 International Business Machines Corporation Frame synchronization mechanism for digital simultaneous voice/data modems
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
ATE208546T1 (de) 2001-11-15
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
JP2001515292A (ja) 2001-09-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8327 Change in the person/name/address of the patent owner

Owner name: MINDSPEED TECHNOLOGIES, INC., NEWPORT BEACH, CALIF

8370 Indication related to discontinuation of the patent is to be deleted
8327 Change in the person/name/address of the patent owner

Owner name: V-DOT TECHNOLOGIES LLC, WASHINGTON, D.C., US

8328 Change in the person/name/address of the agent

Representative=s name: DR. WEITZEL & PARTNER, 89522 HEIDENHEIM

8327 Change in the person/name/address of the patent owner

Owner name: V-DOT TECHNOLOGIES, LLC, TYLER, TEX., US