DE69225715T2 - Vollduplex Anlaufverfahren für Modems - Google Patents

Vollduplex Anlaufverfahren für Modems

Info

Publication number
DE69225715T2
DE69225715T2 DE69225715T DE69225715T DE69225715T2 DE 69225715 T2 DE69225715 T2 DE 69225715T2 DE 69225715 T DE69225715 T DE 69225715T DE 69225715 T DE69225715 T DE 69225715T DE 69225715 T2 DE69225715 T2 DE 69225715T2
Authority
DE
Germany
Prior art keywords
modems
full duplex
startup procedure
startup
procedure
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 - Fee Related
Application number
DE69225715T
Other languages
English (en)
Other versions
DE69225715D1 (de
Inventor
Gottfried Dr Ungerboeck
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE69225715D1 publication Critical patent/DE69225715D1/de
Application granted granted Critical
Publication of DE69225715T2 publication Critical patent/DE69225715T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24—Negotiation of communication capabilities
DE69225715T 1992-12-10 1992-12-10 Vollduplex Anlaufverfahren für Modems Expired - Fee Related DE69225715T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92810978A EP0601260B1 (de) 1992-12-10 1992-12-10 Vollduplex Anlaufverfahren für Modems

Publications (2)

Publication Number Publication Date
DE69225715D1 DE69225715D1 (de) 1998-07-02
DE69225715T2 true DE69225715T2 (de) 1999-02-18

Family

ID=8212047

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225715T Expired - Fee Related DE69225715T2 (de) 1992-12-10 1992-12-10 Vollduplex Anlaufverfahren für Modems

Country Status (4)

Country Link
US (1) US5353280A (de)
EP (1) EP0601260B1 (de)
JP (1) JP2533286B2 (de)
DE (1) DE69225715T2 (de)

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US6094422A (en) * 1994-02-09 2000-07-25 3Com Corporation Echo canceller touch-up period in an echo-cancelling modem
US5627885A (en) * 1994-02-14 1997-05-06 Brooktree Corporation System for, and method of, transmitting and receiving through telephone lines signals representing data
US5732104A (en) * 1994-12-14 1998-03-24 Motorola, Inc. Signalling techniques and device for high speed data transmission over voiceband channels
US5987061A (en) * 1996-05-09 1999-11-16 Texas Instruments Incorporated Modem initialization process for line code and rate selection in DSL data communication
US6215793B1 (en) 1996-11-12 2001-04-10 Alcatel Initialization protocol for adaptive data rates, and related transceiver
DE69613376T2 (de) * 1996-11-12 2002-05-02 Alcatel Sa Initialisierungsprotokoll für adaptive Datenübertragungsgeschwindigkeiten und Sende-Empfangseinrichtung dafür
US5903603A (en) * 1997-01-27 1999-05-11 Motorola, Inc. Modem training apparatus and method
US6078645A (en) * 1997-02-20 2000-06-20 Lucent Technologies Inc. Apparatus and method for monitoring full duplex data communications
US6141403A (en) * 1997-08-13 2000-10-31 International Business Machines Corporation Modem protocol
US6130882A (en) * 1997-09-25 2000-10-10 Motorola, Inc. Method and apparatus for configuring a communication system
US5991311A (en) 1997-10-25 1999-11-23 Centillium Technology Time-multiplexed transmission on digital-subscriber lines synchronized to existing TCM-ISDN for reduced cross-talk
US6434169B1 (en) * 1997-10-31 2002-08-13 Alcatel Canada Inc. Voiceband/modem signal relay
US6084917A (en) 1997-12-16 2000-07-04 Integrated Telecom Express Circuit for configuring and dynamically adapting data and energy parameters in a multi-channel communications system
US6735245B1 (en) * 1998-01-09 2004-05-11 Panasonic Communications Co., Ltd. Activation of multiple XDSL modems with channel probe
US6700879B1 (en) 1998-03-30 2004-03-02 Nortel Networks Limited Modem loop rate adaptation
US6873652B1 (en) 1998-04-01 2005-03-29 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with implicit channel probe
CN1327629C (zh) * 1998-04-01 2007-07-18 松下图像通信系统公司 带有隐式信道探头的多种xDSL调制解调器的启动
AU3477999A (en) * 1998-04-07 1999-10-25 3Com Corporation Controlled aliasing to simplify service selection
US6571393B1 (en) * 1998-05-27 2003-05-27 The Hong Kong University Of Science And Technology Data transmission system
US6272170B1 (en) * 1998-07-09 2001-08-07 Conexant Systems, Inc. Method and apparatus for reducing start-up latency in a data transmission system
US6950459B1 (en) 1999-01-08 2005-09-27 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with half duplex and full duplex procedures
US6553518B1 (en) 1999-03-08 2003-04-22 International Business Machines Corporation Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations
US7512149B2 (en) * 2003-04-23 2009-03-31 At & T Intellectual Property Ii, L.P. Bit and power allocation scheme for full-duplex transmission with echo cancellation in multicarrier-based modems
US6819749B1 (en) 1999-04-12 2004-11-16 Mindspeed Technologies, Inc. Method and apparatus for fast V.90 modem startup
US6704399B1 (en) 1999-04-12 2004-03-09 Conexant Systems, Inc. Quick connect parameter exchange
US6912276B1 (en) 1999-04-12 2005-06-28 Silicon Laboratories, Inc. Modem on hold
US6690776B1 (en) 1999-04-12 2004-02-10 Conexant Systems, Inc. Communication on hold notifier
USRE42661E1 (en) 1999-04-12 2011-08-30 V-Dot Technologies, Llc Method and apparatus for fast V.90 modem startup
US6731726B1 (en) 1999-04-12 2004-05-04 Conexant Systems, Inc. Communication on hold
US6587875B1 (en) * 1999-04-30 2003-07-01 Microsoft Corporation Network protocol and associated methods for optimizing use of available bandwidth
US6751254B1 (en) 1999-05-05 2004-06-15 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with power control measurement
GB2358548B (en) * 1999-05-18 2003-09-10 Bob Tang Methods for fast establishment of modem-to-modem data link via PSTN bypassing present lengthy modem negotiations
US6661847B1 (en) 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations
US6694470B1 (en) 1999-05-21 2004-02-17 Panasonic Communications Co., Ltd. Retransmission procedure and apparatus for handshaking protocol
EP1098463B1 (de) * 1999-05-21 2007-10-24 Fujitsu Limited Verfahren und vorrichtung zur nachrichtenübertragung über eine digitale teilnehmeranschlussleitung
EP1201077B1 (de) * 1999-07-27 2007-12-26 Conexant Systems, Inc. Der schnelle parameteraustausch
US6560321B1 (en) * 1999-09-27 2003-05-06 Conexant Systems, Inc. Method and apparatus for quick startup in a half-duplex modem system
US6823017B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Systems, methods and computer program products for filtering glitches from measured values in a sequence of code points
US6611563B1 (en) 1999-10-29 2003-08-26 International Business Machines Corporation Systems, methods and computer program products for data mode refinement of modem constellation points
US6792040B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Modems having a dual power mode capability and methods of operating same
US6754258B1 (en) 1999-10-29 2004-06-22 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of digital impairments based on patterns
US6816545B1 (en) 1999-10-29 2004-11-09 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modems based on clusters and/or skips in pulse code modulation signal levels
US6792004B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of robbed-bit signaling based on proximity
US6765955B1 (en) 1999-10-29 2004-07-20 International Business Machines Corporation Methods, systems and computer program products establishing a communication configuration for a modem connection to compensate for echo noise
US6839382B1 (en) 1999-10-29 2005-01-04 International Business Machines Corporation System, methods and computer program products for identifying digital impairments in modem signals using signature analysis and signal level comparison analysis
US6662322B1 (en) 1999-10-29 2003-12-09 International Business Machines Corporation Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points
US6757325B1 (en) 1999-10-29 2004-06-29 International Business Machines Corporation Methods, modems and computer program products for identification of a modem type and adjustment of a communication configuration based on modem type
US6823004B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Methods, systems and computer program products for monitoring performance of a modem during a connection
US6826157B1 (en) 1999-10-29 2004-11-30 International Business Machines Corporation Systems, methods, and computer program products for controlling data rate reductions in a communication device by using a plurality of filters to detect short-term bursts of errors and long-term sustainable errors
US6650657B1 (en) 1999-10-29 2003-11-18 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modem signals
US6505222B1 (en) 1999-10-29 2003-01-07 International Business Machines Corporation Systems methods and computer program products for controlling undesirable bias in an equalizer
US6967995B1 (en) 1999-10-29 2005-11-22 International Business Machines Corporation Methods, systems and computer program products for carrier drop detection using a variable threshold
ATE418215T1 (de) * 2004-04-22 2009-01-15 Alcatel Lucent Modem zum koppeln einer netzwerkeinheit an ein gerät
GB2524987B (en) * 2014-04-08 2018-09-19 Samsung Electronics Co Ltd Sharing a session key between devices
UA126130C2 (uk) 2020-03-13 2022-08-17 Олександр Васильович Царук Спосіб швидкого встановлення з'єднання pstn-модемів та pstn-модем з швидким встановленням з'єднання згідно зі способом

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680781A (en) * 1985-10-30 1987-07-14 Microcom, Inc. Data telecommunications system and method with universal link establishment
US4894847A (en) * 1987-05-26 1990-01-16 Hayes Microcomputer Products, Inc. High speed half duplex modem with fast turnaround protocol
US4905282A (en) * 1988-10-19 1990-02-27 Hayes Microcomputer Products, Inc. Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem
US4953210A (en) * 1988-10-19 1990-08-28 Hayes Microcomputer Products, Inc. Feature negotiation protocol for a synchronous modem
US5023869A (en) * 1989-03-27 1991-06-11 Alberta Telecommunications Research Centre Method and apparatus for maximizing the transmission capacity of a multi-channel bidirectional communications link
US5214637A (en) * 1991-04-15 1993-05-25 Codex Corporation High speed two wire modem

Also Published As

Publication number Publication date
JPH07226784A (ja) 1995-08-22
JP2533286B2 (ja) 1996-09-11
EP0601260B1 (de) 1998-05-27
EP0601260A1 (de) 1994-06-15
DE69225715D1 (de) 1998-07-02
US5353280A (en) 1994-10-04

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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