ATE482525T1 - Verfahren und anordnung zum erweitern der suche durch trellis - Google Patents

Verfahren und anordnung zum erweitern der suche durch trellis

Info

Publication number
ATE482525T1
ATE482525T1 AT02781351T AT02781351T ATE482525T1 AT E482525 T1 ATE482525 T1 AT E482525T1 AT 02781351 T AT02781351 T AT 02781351T AT 02781351 T AT02781351 T AT 02781351T AT E482525 T1 ATE482525 T1 AT E482525T1
Authority
AT
Austria
Prior art keywords
trellis
search
arrangement
expanding
state indexes
Prior art date
Application number
AT02781351T
Other languages
English (en)
Inventor
Teemu Sipilae
Jari Parviainen
Original Assignee
Nokia 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 Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE482525T1 publication Critical patent/ATE482525T1/de

Links

Classifications

    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6331—Error control coding in combination with equalisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/3955—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using a trellis with a reduced state space complexity, e.g. M-algorithm or T-algorithm
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Error Detection And Correction (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Inorganic Insulating Materials (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
AT02781351T 2001-12-17 2002-11-27 Verfahren und anordnung zum erweitern der suche durch trellis ATE482525T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20012487A FI111887B (fi) 2001-12-17 2001-12-17 Menetelmä ja järjestely trelliksen läpikäymisen tehostamiseksi
PCT/FI2002/000955 WO2003052943A1 (en) 2001-12-17 2002-11-27 Method and arrangement for enhancing search through trellis

Publications (1)

Publication Number Publication Date
ATE482525T1 true ATE482525T1 (de) 2010-10-15

Family

ID=8562501

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02781351T ATE482525T1 (de) 2001-12-17 2002-11-27 Verfahren und anordnung zum erweitern der suche durch trellis

Country Status (9)

Country Link
US (1) US20050086577A1 (de)
EP (1) EP1456958B1 (de)
KR (1) KR20040066907A (de)
CN (1) CN1605160A (de)
AT (1) ATE482525T1 (de)
AU (1) AU2002349063A1 (de)
DE (1) DE60237786D1 (de)
FI (1) FI111887B (de)
WO (1) WO2003052943A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100486732B1 (ko) * 2003-02-19 2005-05-03 삼성전자주식회사 블럭제한된 트렐리스 부호화 양자화방법과 음성부호화시스템에있어서 이를 채용한 라인스펙트럼주파수 계수양자화방법 및 장치
KR100728056B1 (ko) 2006-04-04 2007-06-13 삼성전자주식회사 다중 경로 트랠리스 부호화 양자화 방법 및 이를 이용한다중 경로 트랠리스 부호화 양자화 장치
JP4399021B1 (ja) * 2008-10-29 2010-01-13 株式会社東芝 ディスクアレイ制御装置および記憶装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933956A (en) * 1983-04-14 1990-06-12 Codex Corporation Simplified decoding of lattices and codes
FI84866C (fi) * 1990-03-12 1992-01-27 Nokia Mobile Phones Ltd Foerbaettring av en viterbi-algoritm.
FR2675968B1 (fr) * 1991-04-23 1994-02-04 France Telecom Procede de decodage d'un code convolutif a maximum de vraisemblance et ponderation des decisions, et decodeur correspondant.
US5502735A (en) * 1991-07-16 1996-03-26 Nokia Mobile Phones (U.K.) Limited Maximum likelihood sequence detector
US5229767A (en) * 1991-09-05 1993-07-20 Motorola, Inc. Decoder for convolutionally encoded information
US5384810A (en) * 1992-02-05 1995-01-24 At&T Bell Laboratories Modulo decoder
US5291499A (en) * 1992-03-16 1994-03-01 Cirrus Logic, Inc. Method and apparatus for reduced-complexity viterbi-type sequence detectors
US5588028A (en) * 1993-02-02 1996-12-24 U.S. Robotics Simplified trellis decoder
US5390198A (en) * 1993-05-26 1995-02-14 The Boeing Company Soft decision viterbi decoder for M-ary convolutional codes
US5509020A (en) * 1993-05-27 1996-04-16 Sony Corporation Viterbi decoding apparatus and methods
US5539757A (en) * 1993-12-22 1996-07-23 At&T Corp. Error correction systems with modified Viterbi decoding
US5905742A (en) * 1995-12-27 1999-05-18 Ericsson Inc. Method and apparauts for symbol decoding
US5901182A (en) * 1997-03-26 1999-05-04 Sharp Laboratories Of America, Inc. Metric sifting in breadth-first decoding of convolutional coded data
US6201839B1 (en) * 1997-05-09 2001-03-13 Carnegie Mellon University Method and apparatus for correlation-sensitive adaptive sequence detection
US6370201B1 (en) * 1997-11-04 2002-04-09 L-3 Communications Corp. Simplified branch metric calculation in pragmatic trellis decoders
US5912908A (en) * 1997-11-21 1999-06-15 Lucent Technologies Inc. Method of efficient branch metric computation for a Viterbi convolutional decoder
US6212664B1 (en) * 1998-04-15 2001-04-03 Texas Instruments Incorporated Method and system for estimating an input data sequence based on an output data sequence and hard disk drive incorporating same
US6490327B1 (en) * 1998-12-30 2002-12-03 Ericsson Inc. System and method for self-adaptive maximum likelihood sequence detection using a T-algorithm
US6446236B1 (en) * 1999-10-13 2002-09-03 Maxtor Corporation Reading encoded information subject to random and transient errors
US6788750B1 (en) * 2000-09-22 2004-09-07 Tioga Technologies Inc. Trellis-based decoder with state and path purging
KR100365724B1 (ko) * 2000-12-27 2002-12-31 한국전자통신연구원 이진 로그맵 알고리즘을 이용한 터보 복호기 및 그 구현방법
US6603412B2 (en) * 2001-06-08 2003-08-05 Texas Instruments Incorporated Interleaved coder and method
US7117427B2 (en) * 2003-07-09 2006-10-03 Texas Instruments Incorporated Reduced complexity decoding for trellis coded modulation

Also Published As

Publication number Publication date
CN1605160A (zh) 2005-04-06
FI20012487A0 (fi) 2001-12-17
FI111887B (fi) 2003-09-30
US20050086577A1 (en) 2005-04-21
DE60237786D1 (de) 2010-11-04
KR20040066907A (ko) 2004-07-27
EP1456958A1 (de) 2004-09-15
EP1456958B1 (de) 2010-09-22
WO2003052943A1 (en) 2003-06-26
FI20012487A (fi) 2003-06-18
AU2002349063A1 (en) 2003-06-30

Similar Documents

Publication Publication Date Title
ATE344551T1 (de) Verfahren zur decodierung einer sequenz von codeworten variabler länge
WO2005101247A3 (en) Database with efficient fuzzy matching
WO2002073863A3 (en) Techniques for searching encrypted files
DK1952285T3 (da) Anlæg og fremgangsmåde til gennemsøgning og sammenligning af data, som har ordbilled-agtigt indhold
DE60125441D1 (de) Mehrstufiges, mehrebenes Vebrennungssystem für Gasturbine
WO2004079631A3 (en) Method and arrangement for searching for strings
WO2006076418A3 (en) Reputation based search
ATE363586T1 (de) Verfahren zur herstellung einer statorkomponente
WO2005062210A8 (en) Methods and systems for personalized network searching
HK1132074A1 (en) Image processing
ATE515835T1 (de) Spreizspektrumkorrelator
ATE476068T1 (de) Verfahren und vorrichtung zum umkonfigurieren eines gemeinsamen kanals
ATE484930T1 (de) Automatisches auswahlverfahren für das konfigurationsprofil eines mobiltelefons
ATE340919T1 (de) Fingerförmiges klappenventil
FR2712037B1 (fr) Turbomachine à compresseur dont le rotor a un étage amont amovible.
ATE482525T1 (de) Verfahren und anordnung zum erweitern der suche durch trellis
DE60326707D1 (de) Sches verfahren
EP1732022A4 (de) Basensequenz-abrufvorrichtung
ATE390665T1 (de) Verfahren zur ganzzahldivision gegen angriffe an versteckten kanälen
DE60314139D1 (de) Verfahren und system zur variable-länge-decodierung und einrichtung zur lokalisierung von codewörtern
SE0302336L (sv) Localization of a point source of a visualized gas leak
WO2003088098A3 (en) Method and apparatus for routing an integrated circuit
DE602005002998D1 (de) Gerät zum Auswählen von Routing-Informationen für einen Router in einem Kommunikationsnetz
ATE344904T1 (de) Rohrabschnitt für eine rohrschlange
WO2006092662A3 (en) Efficient implementation of gsm/gprs equalizer

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties