AU2002233571A1 - A line coding scheme for digital communications, transmission method and apparatus - Google Patents

A line coding scheme for digital communications, transmission method and apparatus

Info

Publication number
AU2002233571A1
AU2002233571A1 AU2002233571A AU3357102A AU2002233571A1 AU 2002233571 A1 AU2002233571 A1 AU 2002233571A1 AU 2002233571 A AU2002233571 A AU 2002233571A AU 3357102 A AU3357102 A AU 3357102A AU 2002233571 A1 AU2002233571 A1 AU 2002233571A1
Authority
AU
Australia
Prior art keywords
sub
digital communications
mod
states
coding scheme
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.)
Abandoned
Application number
AU2002233571A
Inventor
Enrico Forestieri
Giancarlo Prati
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.)
Marconi Communications SpA
Original Assignee
Marconi Communications SpA
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 Marconi Communications SpA filed Critical Marconi Communications SpA
Publication of AU2002233571A1 publication Critical patent/AU2002233571A1/en
Abandoned 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Communication Control (AREA)

Abstract

A coding scheme of order n for digital communications, in particular optical communication, for obtaining a coded signal x(t) which represents binary data which are constituted by sequences of information bits {u<SUB>k</SUB>} with rate T, the scheme having N=2<SUP>n </SUP>states, named Sigma<SUB>i</SUB>, for i=1, 2, . . . , N, and comprising predetermined elementary signals s<SUB>i</SUB>(t) which are combined in the signal x(t). According to the scheme, if, at the time t=kT, the coding is in a state Sigma<SUB>m </SUB>of the N states, the arrival of the information bit u<SUB>k </SUB>of the sequence {u<SUB>k</SUB>} forces a transition to the state Sigma<SUB>q </SUB>of the N states and the selection of the elementary signal s<SUB>i</SUB>(t) as x(t), where q and i are given by the following equations: d<SUB>i</SUB>=m-1 mod 2; d<SUB>0</SUB>=d<SUB>1</SUB>+u<SUB>k</SUB> mod 2; y=2(m-1)+d<SUB>0</SUB>; q=(r mod N)+1; and i=r+1 if r<N, or i=r-2N otherwise.
AU2002233571A 2000-12-15 2001-12-14 A line coding scheme for digital communications, transmission method and apparatus Abandoned AU2002233571A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000MI002727A IT1319558B1 (en) 2000-12-15 2000-12-15 LINE CODING DIAGRAM FOR DIGITAL COMMUNICATIONS, TRANSMISSION METHOD AND APPARATUS.
ITMI2000A002727 2000-12-15
PCT/IB2001/002795 WO2002049299A2 (en) 2000-12-15 2001-12-14 A line coding scheme for digital communications, transmission method and apparatus

Publications (1)

Publication Number Publication Date
AU2002233571A1 true AU2002233571A1 (en) 2002-06-24

Family

ID=11446247

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002233571A Abandoned AU2002233571A1 (en) 2000-12-15 2001-12-14 A line coding scheme for digital communications, transmission method and apparatus

Country Status (10)

Country Link
US (1) US7333734B2 (en)
EP (1) EP1344320B1 (en)
JP (1) JP3863110B2 (en)
CN (1) CN100399704C (en)
AT (1) ATE358914T1 (en)
AU (1) AU2002233571A1 (en)
CA (1) CA2430963A1 (en)
DE (1) DE60127711T2 (en)
IT (1) IT1319558B1 (en)
WO (1) WO2002049299A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1615358A1 (en) * 2003-03-10 2006-01-11 Matsushita Electric Industrial Co., Ltd. Pulse train optical transmission system and transmitter and receiver apparatuses used therein
US20070212077A1 (en) * 2004-06-16 2007-09-13 Toshihiko Yasue Ultra Wideband Communication System, Transmission Device Reception Device, and Replay Device Used for the Same
US7302192B2 (en) * 2005-04-28 2007-11-27 Menara Networks Methods of spread-pulse modulation and nonlinear time domain equalization for fiber optic communication channels
WO2006116723A2 (en) * 2005-04-28 2006-11-02 Menara Networks Spread-pulse modulation and nonlinear time domain equalization for fiber optic communication channels
US10763970B2 (en) 2016-08-10 2020-09-01 Telefonaktiebolaget Lm Ericsson (Publ) Encoding for optical transmission
CN113839654A (en) * 2020-06-23 2021-12-24 深圳市中兴微电子技术有限公司 Multi-level output driving circuit and method
CN115964906B (en) * 2023-03-17 2023-06-02 巨霖科技(上海)有限公司 PAM3 differential port statistical eye diagram simulation method and device based on polygonal edge response

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543070A1 (en) * 1991-11-21 1993-05-26 International Business Machines Corporation Coding system and method using quaternary codes
FR2745451B1 (en) * 1996-02-23 1998-04-17 Cit Alcatel METHOD FOR OPTICAL TRANSMISSION OF DIGITAL DATA
US6424444B1 (en) * 2001-01-29 2002-07-23 Stratalight Communications, Inc. Transmission and reception of duobinary multilevel pulse-amplitude-modulated optical signals using finite-state machine-based encoder

Also Published As

Publication number Publication date
JP2004516714A (en) 2004-06-03
WO2002049299A3 (en) 2003-04-10
ATE358914T1 (en) 2007-04-15
JP3863110B2 (en) 2006-12-27
CA2430963A1 (en) 2002-06-20
IT1319558B1 (en) 2003-10-20
EP1344320B1 (en) 2007-04-04
EP1344320A2 (en) 2003-09-17
ITMI20002727A1 (en) 2002-06-15
WO2002049299A2 (en) 2002-06-20
DE60127711D1 (en) 2007-05-16
CN100399704C (en) 2008-07-02
US20040066856A1 (en) 2004-04-08
US7333734B2 (en) 2008-02-19
CN1633748A (en) 2005-06-29
DE60127711T2 (en) 2007-12-27

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