DE69919982D1 - Verfahren und vorrichtungen zur synchronisierung eines datennachrichtentechnikssystems mit einer periodischen digitalen beeinträchtigung - Google Patents

Verfahren und vorrichtungen zur synchronisierung eines datennachrichtentechnikssystems mit einer periodischen digitalen beeinträchtigung

Info

Publication number
DE69919982D1
DE69919982D1 DE69919982T DE69919982T DE69919982D1 DE 69919982 D1 DE69919982 D1 DE 69919982D1 DE 69919982 T DE69919982 T DE 69919982T DE 69919982 T DE69919982 T DE 69919982T DE 69919982 D1 DE69919982 D1 DE 69919982D1
Authority
DE
Germany
Prior art keywords
synchronizing
devices
data message
technology system
digital interference
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
DE69919982T
Other languages
English (en)
Other versions
DE69919982T2 (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.)
Conexant Systems 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
Application filed by Conexant Systems LLC filed Critical Conexant Systems LLC
Application granted granted Critical
Publication of DE69919982D1 publication Critical patent/DE69919982D1/de
Publication of DE69919982T2 publication Critical patent/DE69919982T2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3472—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel by switching between alternative constellations
DE69919982T 1998-01-20 1999-01-19 Verfahren und vorrichtungen zur synchronisierung eines datennachrichtentechnikssystems mit einer periodischen digitalen beeinträchtigung Expired - Lifetime DE69919982T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/009,228 US6023493A (en) 1998-01-20 1998-01-20 Method and apparatus for synchronizing a data communication system to a periodic digital impairment
US9228 1998-01-20
PCT/US1999/001005 WO1999037051A2 (en) 1998-01-20 1999-01-19 Method and apparatus for synchronizing a data communication system to a periodic digital impairment

Publications (2)

Publication Number Publication Date
DE69919982D1 true DE69919982D1 (de) 2004-10-14
DE69919982T2 DE69919982T2 (de) 2005-09-29

Family

ID=21736372

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69919982T Expired - Lifetime DE69919982T2 (de) 1998-01-20 1999-01-19 Verfahren und vorrichtungen zur synchronisierung eines datennachrichtentechnikssystems mit einer periodischen digitalen beeinträchtigung

Country Status (5)

Country Link
US (3) US6023493A (de)
EP (1) EP1050127B1 (de)
DE (1) DE69919982T2 (de)
HK (1) HK1033870A1 (de)
WO (1) WO1999037051A2 (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760302B1 (fr) * 1997-03-03 2000-08-04 Alsthom Cge Alcatel Procede et dispositif pour la transmission de trames de donnees
US6195414B1 (en) * 1997-04-17 2001-02-27 Telecom Analysis Systems Digital facility simulator with CODEC emulation
US6023493A (en) 1998-01-20 2000-02-08 Conexant Systems, Inc. Method and apparatus for synchronizing a data communication system to a periodic digital impairment
US7072330B2 (en) * 1998-04-03 2006-07-04 Consolidated Ip Holdings, Inc. Systems for voice and data communications having TDM and packet buses and telephony station cards including voltage generators
US6389009B1 (en) * 2000-12-28 2002-05-14 Vertical Networks, Inc. Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses
US20090059818A1 (en) * 1998-04-03 2009-03-05 Pickett Scott K Systems and methods for providing configurable caller id iformation
US6266382B1 (en) * 1998-05-23 2001-07-24 Agere Systems Guardian Corp. Technique for detecting and treating robbed bit signaling in data communications
US6317419B1 (en) * 1998-06-10 2001-11-13 Conexant Systems, Inc. Method and apparatus for training an echo canceler in a PCM modem context
US6782066B1 (en) * 1998-06-16 2004-08-24 3Com Corporation Method and system for detecting frame slips in a digital communications channel
US6366591B1 (en) * 1998-07-13 2002-04-02 Agere Systems Guardian Corp. Technique for treating channel impairments involving measuring a digital loss in transmitted signals in data communications
US6370124B1 (en) * 1998-07-13 2002-04-09 Agere Systems Guardian Corp. Technique for treating channel impairments including a digital loss in transmitted signals in data communications
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
US6885715B1 (en) * 1998-07-29 2005-04-26 Intel Corporation Method and apparatus for synchronizing a network link
US6625208B2 (en) 1998-09-25 2003-09-23 Intel Corporation Modem using batch processing of signal samples
US6661848B1 (en) 1998-09-25 2003-12-09 Intel Corporation Integrated audio and modem device
US6502138B2 (en) * 1998-09-25 2002-12-31 Intel Corporation Modem with code execution adapted to symbol rate
US6574239B1 (en) * 1998-10-07 2003-06-03 Eric Morgan Dowling Virtual connection of a remote unit to a server
US7254167B2 (en) 1998-10-30 2007-08-07 Broadcom Corporation Constellation-multiplexed transmitter and receiver
US6597732B1 (en) * 1999-01-14 2003-07-22 Eric Morgan Dowling High-speed modem with uplink remote-echo canceller
US6522688B1 (en) * 1999-01-14 2003-02-18 Eric Morgan Dowling PCM codec and modem for 56K bi-directional transmission
US6721279B1 (en) 1999-02-02 2004-04-13 Pctel, Inc. Method and apparatus for adaptive PCM level estimation and constellation training
US6523233B1 (en) * 1999-04-22 2003-02-25 Agere Systems, Inc. Method and apparatus for telephone network impairment detection and compensation in signal transmission between modems
US6512787B1 (en) * 1999-04-23 2003-01-28 Pc-Tel, Inc. Digital impairment learning method and system
US6490295B1 (en) * 1999-05-04 2002-12-03 3Com Corporation High-speed MODEM operating over two or more telephone lines
US6721363B1 (en) 1999-06-24 2004-04-13 Intel Corporation Receiver CODEC super set constellation generator
US6724814B1 (en) * 1999-06-24 2004-04-20 Intel Corporation Pad and CODEC detection
US6301296B1 (en) * 1999-06-24 2001-10-09 Cirrus Logic, Inc. Digital impairment learning sequence
US6721357B1 (en) 1999-06-24 2004-04-13 Intel Corporation Constellation generation and re-evaluation
US7339996B2 (en) * 1999-06-24 2008-03-04 Intel Corporation Receiver codec super set constellation generator
US7190727B1 (en) 1999-07-31 2007-03-13 Broadcom Corporation Categorization of impairments affecting a communication channel
WO2001013596A1 (en) * 1999-07-31 2001-02-22 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
US6721287B1 (en) * 1999-09-09 2004-04-13 Agere Systems Inc. Far echo canceller for PCM modems
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
EP1274193A1 (de) * 2001-07-04 2003-01-08 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Verfahren und Vorrichtung zur Bereitstellung von Taktinformation in einem drahtlosen Nachrichtenübertragungsnetzwerk
US20030212845A1 (en) * 2002-05-07 2003-11-13 Court John William Method for high-speed data transfer across LDT and PCI buses
US7299285B2 (en) * 2002-05-15 2007-11-20 Adc Dsl Systems, Inc. Resource sharing with database synchronization
US20060203941A1 (en) * 2002-07-01 2006-09-14 Borran Mohammad J Method and apparatus to establish for imperfect channel state information at a receiver
US7706359B2 (en) * 2002-07-01 2010-04-27 Converged Data Solutions, Inc. Systems and methods for voice and data communications including a network drop and insert interface for an external data routing resource
US7287412B2 (en) * 2003-06-03 2007-10-30 Nano-Proprietary, Inc. Method and apparatus for sensing hydrogen gas
US20040157548A1 (en) * 2003-02-06 2004-08-12 Eyer Mark Kenneth Home network interface legacy device adapter
US7889804B2 (en) * 2003-05-30 2011-02-15 Mohammad Jaber Borran Partially coherent constellations for multiple-antenna systems
US20070240491A1 (en) * 2003-06-03 2007-10-18 Nano-Proprietary, Inc. Hydrogen Sensor
US7120854B2 (en) * 2003-08-18 2006-10-10 Texas Instruments Incorporated Wireless access modem having downstream channel resynchronization method
WO2007019244A2 (en) * 2005-08-03 2007-02-15 Nano-Proprietary, Inc. Continuous range hydrogen sensor
EP1868340B1 (de) * 2006-06-12 2012-10-17 Ali Corporation Ordnungsberechnungsverfahren in einem QAM-Empfänger für quadraturmodulierte Signale

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730312A (en) * 1986-02-21 1988-03-08 San/Bar Corporation Voice, data or both over one telephone line in a T-1 carrier system
US5048054A (en) * 1989-05-12 1991-09-10 Codex Corporation Line probing modem
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
EP0577670A1 (de) * 1991-03-28 1994-01-12 BRITISH TELECOMMUNICATIONS public limited company Rahmensynchronisierung für QAM
US5550820A (en) 1992-09-29 1996-08-27 Com 21, Inc. Multiple protocol personal communications network system
IE922760A1 (en) * 1992-10-21 1994-05-04 Digital Equipment Internat Ltd DS-O Loop-back detection on a DS-1 line
US5349579A (en) 1993-01-05 1994-09-20 Excel, Inc. Telecommunication switch with programmable communications services
US5506956A (en) * 1993-04-07 1996-04-09 Sprint Communications Company L.P. Error correction and channel restoration apparatus for T1 digital links
US5535244A (en) * 1993-06-07 1996-07-09 Matsushita Electric Industrial Co., Ltd. Digital modulating/demodulating apparatus and a digital demodulating apparatus
FR2709900B1 (fr) * 1993-09-06 1995-10-13 Alcatel Mobile Comm France Substitution des bits de synchronisation dans une trame de transmission.
US5598435A (en) * 1993-12-23 1997-01-28 British Telecommunications Public Limited Company Digital modulation using QAM with multiple signal point constellations not equal to a power of two
US5541967A (en) * 1994-03-09 1996-07-30 National Semiconductor Corporation Fast symbol synchronization for use in conditioning a receiving modem
US5577105A (en) 1994-03-11 1996-11-19 U.S. Robotics, Inc. Telephone call routing and switching techniques for data communications
JP3146845B2 (ja) * 1994-05-23 2001-03-19 三菱電機株式会社 同期信号検出装置
US5590161A (en) * 1994-08-23 1996-12-31 Tektron Micro Electronics, Inc. Apparatus for synchronizing digital data without using overhead frame bits by using deliberately introduced errors for indicating superframe synchronization of audio signals
US5822359A (en) * 1994-10-17 1998-10-13 Motorola, Inc. Coherent random access channel in a spread-spectrum communication system and method
US5740241A (en) 1995-05-12 1998-04-14 Carrier Access Corporation T1 channel bank control process and apparatus
JPH09107419A (ja) 1995-10-09 1997-04-22 Matsushita Electric Ind Co Ltd デジタルデータ通信装置およびデジタルデータ通信方法
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
US5729226A (en) * 1996-08-23 1998-03-17 Paradyne Corporation Rob bit compensation system and method associated with a transmitter or CODEC
US5812075A (en) * 1996-08-23 1998-09-22 Paradyne Corporation Combined DAQ/RBS compensation system and method for enhancing the accuracy of digital data communicated through a network
US5754594A (en) * 1996-08-23 1998-05-19 Paradyne Corporation Cooperative feedback system and method for a compensation system associated with a transmitter or codec
US5761247A (en) 1996-08-23 1998-06-02 Paradyne Corporation Rob bit compensation system and method associated with a receiver or codec
US5784405A (en) 1996-08-23 1998-07-21 Paradyne Corporation Noncooperative feedback system and method for a compensation system associated with a transmitter or CODEC
US5875229A (en) 1996-10-15 1999-02-23 Motorola Inc. System and device for, and method of, detecting, characterizing, and mitigating deterministic distortion in a communications network
US6198776B1 (en) 1996-11-13 2001-03-06 Motorola Inc. Device and method for precoding data signals for PCM transmission
US5812602A (en) 1996-11-14 1998-09-22 Motorola Inc. System and device for, and method of, communicating according to a trellis code of baseband signals chosen from a fixed set of baseband signal points
US5999582A (en) 1996-12-26 1999-12-07 Lucent Technologies Inc. Higher speed digital loop carrier transmission system
US5822371A (en) * 1997-02-14 1998-10-13 General Datacomm Inc. Mapper for high data rate signalling
US5825816A (en) * 1997-02-14 1998-10-20 General Datacomm, Inc. Spectral and power shaping mapper for high data rate signalling
US5838724A (en) * 1997-02-14 1998-11-17 General Datacomm, Inc. Spectral and power shaping mapper for high data rate signalling
US5825823A (en) * 1997-06-06 1998-10-20 General Datacomm, Inc. PCM channel diagnosis
US5991348A (en) 1997-08-12 1999-11-23 3Com Corporation Method and apparatus for regenerating symbol timing from a probing signal in a system having non-linear network and codec distortion
US5970089A (en) 1997-08-12 1999-10-19 3Com Corporation Method and apparatus for generating a probing signal for a system having non-linear network and codec distortion
US6212207B1 (en) * 1997-09-26 2001-04-03 3Com Corporation Robbed bit signal detection and compensation
US6118813A (en) 1997-10-31 2000-09-12 Lucent Technologies Inc. Technique for effectively treating robbed bit signaling in data communcations
US6201842B1 (en) 1997-12-29 2001-03-13 Motorola Inc. Device and method for detecting PCM upstream digital impairments in a communication network
US6181752B1 (en) 1997-12-29 2001-01-30 Motorola Inc. Device and method for detecting PCM upstream digital impairments in a communication network
US6343101B1 (en) 1998-01-16 2002-01-29 Ess Technology, Inc. Frame-based sign inversion method and system for spectral shaping for pulse-coded-modulation modems
US6023493A (en) 1998-01-20 2000-02-08 Conexant Systems, Inc. Method and apparatus for synchronizing a data communication system to a periodic digital impairment

Also Published As

Publication number Publication date
US6081567A (en) 2000-06-27
US6023493A (en) 2000-02-08
USRE38678E1 (en) 2004-12-28
EP1050127A2 (de) 2000-11-08
WO1999037051A2 (en) 1999-07-22
EP1050127B1 (de) 2004-09-08
HK1033870A1 (en) 2001-09-28
DE69919982T2 (de) 2005-09-29
WO1999037051A3 (en) 2000-08-24

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