DE69232248T2 - Zweidrahtmodem für hohe Geschwindigkeit - Google Patents

Zweidrahtmodem für hohe Geschwindigkeit

Info

Publication number
DE69232248T2
DE69232248T2 DE69232248T DE69232248T DE69232248T2 DE 69232248 T2 DE69232248 T2 DE 69232248T2 DE 69232248 T DE69232248 T DE 69232248T DE 69232248 T DE69232248 T DE 69232248T DE 69232248 T2 DE69232248 T2 DE 69232248T2
Authority
DE
Germany
Prior art keywords
high speed
wire modem
modem
wire
speed
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
DE69232248T
Other languages
English (en)
Other versions
DE69232248D1 (de
Inventor
Manickam R Sridhar
Aniruddha Mukherjee
Iii John L Moran
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.)
Motorola Mobility LLC
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE69232248D1 publication Critical patent/DE69232248D1/de
Publication of DE69232248T2 publication Critical patent/DE69232248T2/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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
DE69232248T 1991-04-15 1992-04-09 Zweidrahtmodem für hohe Geschwindigkeit Expired - Lifetime DE69232248T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/685,571 US5214637A (en) 1991-04-15 1991-04-15 High speed two wire modem

Publications (2)

Publication Number Publication Date
DE69232248D1 DE69232248D1 (de) 2002-01-17
DE69232248T2 true DE69232248T2 (de) 2002-08-08

Family

ID=24752775

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69232248T Expired - Lifetime DE69232248T2 (de) 1991-04-15 1992-04-09 Zweidrahtmodem für hohe Geschwindigkeit

Country Status (3)

Country Link
US (2) US5214637A (de)
EP (1) EP0513527B1 (de)
DE (1) DE69232248T2 (de)

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JPH06309794A (ja) * 1993-04-26 1994-11-04 Toshiba Corp 再生信号等化装置
JP2503888B2 (ja) * 1993-06-30 1996-06-05 日本電気株式会社 移動無線通信におけるデ―タ伝送方式
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US5602869A (en) * 1993-10-18 1997-02-11 Paradyne Corporation Adaptive transmit levels for modems operating over cellular
US5515398A (en) * 1994-03-15 1996-05-07 U.S. Robotics, Inc. Modem line probing signal techniques
JPH088983A (ja) * 1994-06-15 1996-01-12 Fujitsu Ltd 装置間ディジタル信号伝送方法並びにディジタル信号送受信装置，ディジタル信号送信装置及びディジタル信号受信装置
US5577116A (en) * 1994-09-16 1996-11-19 North Carolina State University Apparatus and method for echo characterization of a communication channel
US5608755A (en) * 1994-10-14 1997-03-04 Rakib; Selim Method and apparatus for implementing carrierless amplitude/phase encoding in a network
JP3471953B2 (ja) * 1995-02-16 2003-12-02 キヤノン株式会社 データ通信装置
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US6012634A (en) * 1995-03-06 2000-01-11 Motorola, Inc. Dual card and method therefor
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US5793809A (en) * 1995-05-31 1998-08-11 Paradyne Corporation Transparent technique for Mu-law modems to detect an all-digital circuit connection
US5715277A (en) * 1995-07-28 1998-02-03 Motorola, Inc. Apparatus and method for determining a symbol rate and a carrier frequency for data transmission and reception
JPH09223990A (ja) * 1996-02-19 1997-08-26 Fujitsu Ltd 伝送装置
US5987061A (en) * 1996-05-09 1999-11-16 Texas Instruments Incorporated Modem initialization process for line code and rate selection in DSL data communication
US5870429A (en) * 1996-06-17 1999-02-09 Motorola, Inc. Apparatus method, and software modem for utilizing envelope delay distortion characteristics to determine a symbol rate and a carrier frequency for data transfer
US5953658A (en) * 1997-01-08 1999-09-14 Paradyne Corporation System and method for eliminating offset echo in a data connection over a cellular cordless telephone service
US6374375B1 (en) * 1997-05-09 2002-04-16 Advanced Micro Devices, Inc. Monitoring line conditions in the data transmission mode
US6081556A (en) * 1997-08-15 2000-06-27 Paradyne Corporation Transparent technique for Mu-law modems to detect an all-digital circuit connection
US6873652B1 (en) 1998-04-01 2005-03-29 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with implicit channel probe
US6252901B1 (en) * 1998-06-23 2001-06-26 3Com Corporation Digital modem fast retrain escape mechanism
US6950459B1 (en) 1999-01-08 2005-09-27 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with half duplex and full duplex procedures
US6490295B1 (en) 1999-05-04 2002-12-03 3Com Corporation High-speed MODEM operating over two or more telephone lines
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
AU5181100A (en) * 1999-06-04 2000-12-28 Broadcom Homenetworking, Inc. Method and apparatus for determination of channel and baud frequency offset estimate using a preamble with a repetitive sequence
US7369516B1 (en) 2000-02-21 2008-05-06 Abraham Fisher Adaptive echo canceling
US6766373B1 (en) * 2000-05-31 2004-07-20 International Business Machines Corporation Dynamic, seamless switching of a network session from one connection route to another
US6831945B1 (en) * 2000-06-16 2004-12-14 Verizon Corporate Services Group Inc. Method and apparatus for remote identification of transmission channel interference
US7593511B2 (en) * 2001-11-19 2009-09-22 Alcatel Lucent Method for training line drivers in a communication system
JP3972737B2 (ja) * 2002-06-05 2007-09-05 日本電気株式会社 ディジタル伝送システム及びそれに用いるディジタル伝送方法
US7893957B2 (en) 2002-08-28 2011-02-22 Visual Intelligence, LP Retinal array compound camera system
US8483960B2 (en) 2002-09-20 2013-07-09 Visual Intelligence, LP Self-calibrated, remote imaging and data processing system
US8994822B2 (en) 2002-08-28 2015-03-31 Visual Intelligence Lp Infrastructure mapping system and method
USRE49105E1 (en) 2002-09-20 2022-06-14 Vi Technologies, Llc Self-calibrated, remote imaging and data processing system
JP4537910B2 (ja) * 2005-08-09 2010-09-08 株式会社リコー ファクシミリ用モデム装置及びそれを用いたファクシミリ装置
US7672367B1 (en) * 2005-08-12 2010-03-02 Adtran, Inc. System and method for selecting data rates of initialization signals
US9088355B2 (en) * 2006-03-24 2015-07-21 Arris Technology, Inc. Method and apparatus for determining the dynamic range of an optical link in an HFC network
EP2002581B1 (de) * 2006-03-24 2014-03-12 General instrument Corporation Verfahren und vorrichtung zur konfiguration logischer kanäle in einem netzwerk
US7876697B2 (en) * 2006-10-26 2011-01-25 General Instrument Corporation Method and apparatus for characterizing modulation schemes in an HFC network
US8537972B2 (en) * 2006-12-07 2013-09-17 General Instrument Corporation Method and apparatus for determining micro-reflections in a network
US8040943B1 (en) 2007-03-15 2011-10-18 Netlogic Microsystems, Inc. Least mean square (LMS) engine for multilevel signal
US8064510B1 (en) 2007-03-15 2011-11-22 Netlogic Microsystems, Inc. Analog encoder based slicer
US8054873B2 (en) * 2007-03-15 2011-11-08 Netlogic Microsystems, Inc. Joint phased training of equalizer and echo canceller
US8386609B2 (en) * 2007-11-09 2013-02-26 International Business Machines Corporation Reconnection to and migration of electronic collaboration sessions
US8619897B2 (en) * 2008-12-09 2013-12-31 Netlogic Microsystems, Inc. Method and apparatus of frequency domain echo canceller
US8516532B2 (en) * 2009-07-28 2013-08-20 Motorola Mobility Llc IP video delivery using flexible channel bonding
US8526485B2 (en) * 2009-09-23 2013-09-03 General Instrument Corporation Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels
US8654640B2 (en) 2010-12-08 2014-02-18 General Instrument Corporation System and method for IP video delivery using distributed flexible channel bonding
US8937992B2 (en) 2011-08-30 2015-01-20 General Instrument Corporation Method and apparatus for updating equalization coefficients of adaptive pre-equalizers
US8576705B2 (en) 2011-11-18 2013-11-05 General Instrument Corporation Upstream channel bonding partial service using spectrum management
US9113181B2 (en) 2011-12-13 2015-08-18 Arris Technology, Inc. Dynamic channel bonding partial service triggering
US8868736B2 (en) 2012-04-27 2014-10-21 Motorola Mobility Llc Estimating a severity level of a network fault
US8867371B2 (en) 2012-04-27 2014-10-21 Motorola Mobility Llc Estimating physical locations of network faults
US9003460B2 (en) 2012-04-27 2015-04-07 Google Technology Holdings LLC Network monitoring with estimation of network path to network element location
US8837302B2 (en) 2012-04-27 2014-09-16 Motorola Mobility Llc Mapping a network fault
US9065731B2 (en) 2012-05-01 2015-06-23 Arris Technology, Inc. Ensure upstream channel quality measurement stability in an upstream channel bonding system using T4 timeout multiplier
US9136943B2 (en) 2012-07-30 2015-09-15 Arris Technology, Inc. Method of characterizing impairments detected by equalization on a channel of a network
US9137164B2 (en) 2012-11-15 2015-09-15 Arris Technology, Inc. Upstream receiver integrity assessment for modem registration
US9203639B2 (en) 2012-12-27 2015-12-01 Arris Technology, Inc. Dynamic load balancing under partial service conditions
US9197886B2 (en) 2013-03-13 2015-11-24 Arris Enterprises, Inc. Detecting plant degradation using peer-comparison
US10477199B2 (en) 2013-03-15 2019-11-12 Arris Enterprises Llc Method for identifying and prioritizing fault location in a cable plant
US9025469B2 (en) 2013-03-15 2015-05-05 Arris Technology, Inc. Method for estimating cable plant topology
US9042236B2 (en) 2013-03-15 2015-05-26 Arris Technology, Inc. Method using equalization data to determine defects in a cable plant

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US4069392A (en) * 1976-11-01 1978-01-17 Incorporated Bell Telephone Laboratories Dual speed full duplex data transmission
CA1159972A (en) * 1980-05-15 1984-01-03 Zdzistaw A. A. Krajewski 2-wire frequency division multiplex system
NL8600087A (nl) * 1986-01-17 1987-08-17 Philips Nv Inrichting voor vol-duplex datatransmissie over tweedraadsverbindingen.
JPS6469127A (en) * 1987-09-10 1989-03-15 Fujitsu Ltd High speed switching system
US5010550A (en) * 1988-02-04 1991-04-23 Nec Corporation Transmission line switching system
US4862456A (en) * 1988-05-04 1989-08-29 The United States Of America As Represented By The Secretary Of The Navy High speed modem
US4987569A (en) * 1989-04-05 1991-01-22 Codex Corporation Fast training echo canceller
US5048054A (en) * 1989-05-12 1991-09-10 Codex Corporation Line probing modem

Also Published As

Publication number Publication date
EP0513527A2 (de) 1992-11-19
US5347539A (en) 1994-09-13
US5214637A (en) 1993-05-25
EP0513527A3 (de) 1995-04-19
EP0513527B1 (de) 2001-12-05
DE69232248D1 (de) 2002-01-17

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Free format text: SCHUMACHER & WILLSAU, PATENTANWALTSSOZIETAET, 80335 MUENCHEN

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MOTOROLA MOBILITY, INC. ( N.D. GES. D. STAATES, US

R071 Expiry of right

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