DE69433075D1 - Codierungsschema für Kanäle mit Intersymbolinterferenz - Google Patents

Codierungsschema für Kanäle mit Intersymbolinterferenz

Info

Publication number
DE69433075D1
DE69433075D1 DE69433075T DE69433075T DE69433075D1 DE 69433075 D1 DE69433075 D1 DE 69433075D1 DE 69433075 T DE69433075 T DE 69433075T DE 69433075 T DE69433075 T DE 69433075T DE 69433075 D1 DE69433075 D1 DE 69433075D1
Authority
DE
Germany
Prior art keywords
channels
coding scheme
intersymbol interference
intersymbol
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
DE69433075T
Other languages
English (en)
Other versions
DE69433075T2 (de
Inventor
Rajiv Laroia
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.)
AT&T Corp
Original Assignee
AT&T 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22133080&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69433075(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of DE69433075D1 publication Critical patent/DE69433075D1/de
Application granted granted Critical
Publication of DE69433075T2 publication Critical patent/DE69433075T2/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
    • H04L25/497—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 by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • H04L25/4975—Correlative coding using Tomlinson precoding, Harashima precoding, Trellis precoding or GPRS
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • H04L25/497—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 by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69433075T 1993-06-14 1994-06-07 Codierungsschema für Kanäle mit Intersymbolinterferenz Expired - Lifetime DE69433075T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/076,603 US5488633A (en) 1993-06-14 1993-06-14 Intersymbol interference channel coding scheme
US76603 1993-06-14

Publications (2)

Publication Number Publication Date
DE69433075D1 true DE69433075D1 (de) 2003-10-02
DE69433075T2 DE69433075T2 (de) 2004-07-08

Family

ID=22133080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69433075T Expired - Lifetime DE69433075T2 (de) 1993-06-14 1994-06-07 Codierungsschema für Kanäle mit Intersymbolinterferenz

Country Status (5)

Country Link
US (1) US5488633A (de)
EP (1) EP0633679B1 (de)
JP (1) JP3059636B2 (de)
CA (1) CA2121757C (de)
DE (1) DE69433075T2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619539A (en) * 1994-02-28 1997-04-08 International Business Machines Corporation Data detection methods and apparatus for a direct access storage device
JP3321976B2 (ja) * 1994-04-01 2002-09-09 富士通株式会社 信号処理装置および信号処理方法
US5604769A (en) * 1994-10-13 1997-02-18 Lucent Technologies Inc. Hybrid equalizer arrangement for use in data communications equipment
JPH08214281A (ja) * 1995-02-06 1996-08-20 Sony Corp 課金方法および課金システム
US5878077A (en) * 1995-10-10 1999-03-02 Paradyne Corporation Apparatus for high-speed simultaneous voice/data communications
JP3140974B2 (ja) * 1996-03-31 2001-03-05 富士通株式会社 判定方法及びプリコーダ装置
US5938790A (en) * 1997-03-04 1999-08-17 Silicon Systems Research Ltd. Sequence error event detection and correction using fixed block digital sum codes
US6307893B1 (en) * 1997-03-05 2001-10-23 Paradyne Corporation System and method for transmit signal spectral shaping
US6252911B1 (en) * 1997-06-11 2001-06-26 Texas Instruments Incorporated Trellis shaping for PCM modems
US6061407A (en) * 1997-10-08 2000-05-09 International Business Machines Corp. Transmission method and apparatus employing trellis-augmented precoding
EP1038379B1 (de) * 1997-12-29 2008-07-30 Motorola, Inc. Methode und apparat zum auswählen eines konstellationspunktes für jede gruppe von datenbits, welche durch ein analoges pcm-modem übertragen werden sollen
US6493399B1 (en) 1998-03-05 2002-12-10 University Of Delaware Digital wireless communications systems that eliminates intersymbol interference (ISI) and multipath cancellation using a plurality of optimal ambiguity resistant precoders
US7103065B1 (en) * 1998-10-30 2006-09-05 Broadcom Corporation Data packet fragmentation in a cable modem system
US6961314B1 (en) 1998-10-30 2005-11-01 Broadcom Corporation Burst receiver for cable modem system
US6760316B1 (en) * 1998-10-30 2004-07-06 Broadcom Corporation Method and apparatus for the synchronization of multiple cable modem termination system devices
WO2000028712A2 (en) * 1998-10-30 2000-05-18 Broadcom Corporation Cable modem system
US6201836B1 (en) 1999-01-20 2001-03-13 Motorola Inc. Method and apparatus for combining a Trellis coding scheme with a pre-coding scheme for data signals
US6680978B1 (en) 1999-03-01 2004-01-20 Adtran, Inc. Method and apparatus for nonlinear filtering and controlling the peak-to-average ratio
US6553081B1 (en) 1999-05-06 2003-04-22 Adtran, Inc. Method and apparatus for removing DC from the output of a precoder in a transmitter of a data communication system
US6400761B1 (en) 1999-09-15 2002-06-04 Princeton University Method and apparatus for adaptively compensating channel or system variations in precoded communications system
US6690739B1 (en) 2000-01-14 2004-02-10 Shou Yee Mui Method for intersymbol interference compensation
US6885699B2 (en) * 2000-07-24 2005-04-26 Stmicroelectronics Ltd. Semi-stationary quiescent mode transmission
US7170946B2 (en) * 2002-03-04 2007-01-30 Lucent Technologies Inc. System and method for reviving catastrophic codes
US7225392B2 (en) * 2002-03-04 2007-05-29 Lucent Technologies Inc. Error correction trellis coding with periodically inserted known symbols
US7471746B2 (en) * 2004-10-28 2008-12-30 Seagate Technology, Llc Whitening of data-dependent, non-stationary noise in an inter-symbol interference channel detector
KR100767052B1 (ko) 2005-12-30 2007-10-17 전남대학교산학협력단 피드백을 갖는 트렐리스 디코더 구조의 ｄｔｖ 수신기 및디코딩 방법
US7953187B2 (en) * 2006-06-21 2011-05-31 Forte Design Systems Limited Likelihood detector apparatus and method
US8731109B2 (en) * 2008-05-19 2014-05-20 Qualcomm Incorporated Methods and systems for effective channel estimation in OFDM systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040191A (en) * 1987-02-24 1991-08-13 Codex Corporation Partial response channel signaling systems
US4888779A (en) * 1988-03-18 1989-12-19 International Business Machines Corporation Matched spectral null trellis codes for partial response channels
US5150381A (en) * 1989-02-16 1992-09-22 Codex Corporation Trellis shaping for modulation systems
US5159610A (en) * 1989-05-12 1992-10-27 Codex Corporation Trellis precoding for modulation systems
US5195107A (en) * 1990-12-11 1993-03-16 At&T Bell Laboratories Technique for compensating for intersymbol interference
US5455839A (en) * 1991-12-27 1995-10-03 Motorola, Inc. Device and method for precoding
US5388124A (en) * 1992-06-12 1995-02-07 University Of Maryland Precoding scheme for transmitting data using optimally-shaped constellations over intersymbol-interference channels
US5396519A (en) * 1993-10-22 1995-03-07 At&T Corp. Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel

Also Published As

Publication number Publication date
EP0633679B1 (de) 2003-08-27
CA2121757A1 (en) 1994-12-15
JP3059636B2 (ja) 2000-07-04
CA2121757C (en) 1999-06-15
DE69433075T2 (de) 2004-07-08
US5488633A (en) 1996-01-30
EP0633679A1 (de) 1995-01-11
JPH0799510A (ja) 1995-04-11

Similar Documents

Publication Publication Date Title
DE69433075D1 (de) Codierungsschema für Kanäle mit Intersymbolinterferenz
DE69429037T2 (de) Nichtlineare Kodierung für Kanälen mit Intersymbolstörungen
DE69426266T2 (de) Datengesteuerter verschlüssler für da-wandler mit multibit-rauschsignalformung
DE69330445T2 (de) Vielfachzugriffskodierung für Funkübertragung
DE69423105D1 (de) Messumformer für mehrere variablen
DE69729081D1 (de) Übergangsgesteuertes gleichstromfreies kodierungsschema
DE69314356D1 (de) Adaptive, rauschvorhersagende partial-response entzerrung für kanäle mit spektralen nullstellen
DE69415773D1 (de) Synchronisiervorrichtung-Kupplung-Anordnung für Mehrstufengetriebe
DE69404822D1 (de) Motor mit isolierter bürstenanordnung
DE69529016D1 (de) Signalisierungsprotokoll für störbehaftete Übertragungskanäle
DE69433602D1 (de) Direktsequenz-Kodemultiplexvielfachzugriffsempfänger mit Mehrbenutzerinterferenzkompensator
DE69302446D1 (de) Ebener Kohlesegmentkommutator
EP0634151A3 (de) Elektrische ZahnbÜrste.
DE69422325T2 (de) Sende-/Empfangsanordnung mit Zeitmultiplex
DE69414324D1 (de) Elektrobeschichtungsverfahren
DE69736429D1 (de) Tunneleffektmessaufnehmer mit linearer kraftrückkopplung
DE69432038D1 (de) 4B6B-Kodierungsschema
GB2296357B (en) Reminder-paging system with sub kits
EP0633674A3 (de) Funksende-empfänger mit einer Schaltung zur Reduktion von Störungen.
DE69433557D1 (de) Entzerrereinrichtung
DE69532530D1 (de) Kodierung für infra-rot signale
GB9312071D0 (en) Encoding scheme
DE69025484D1 (de) Nachbarkanalstörungskompensator mit Minimisierungsmitteln für Nachbarsymbolstörung
DE9319463U1 (de) Steckverbinder für Hohlprofile
ATA7093A (de) Verbinder für hohlprofile

Legal Events

Date Code Title Description
8364 No opposition during term of opposition