NO20090929L - Krets for avgivelse av kanalsvitsjesignal og tilsvarende fremgangsmate - Google Patents

Krets for avgivelse av kanalsvitsjesignal og tilsvarende fremgangsmate

Info

Publication number
NO20090929L
NO20090929L NO20090929A NO20090929A NO20090929L NO 20090929 L NO20090929 L NO 20090929L NO 20090929 A NO20090929 A NO 20090929A NO 20090929 A NO20090929 A NO 20090929A NO 20090929 L NO20090929 L NO 20090929L
Authority
NO
Norway
Prior art keywords
circuit
average value
comparator
error correction
repeated decodings
Prior art date
Application number
NO20090929A
Other languages
English (en)
Inventor
Eisaku Sasaki
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of NO20090929L publication Critical patent/NO20090929L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
    • B23B5/166—Devices for working electrodes
    • 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
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105—Decoding
    • H03M13/1128—Judging correct decoding and iterative stopping criteria other than syndrome check and upper limit for decoding iterations
    • 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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957—Turbo codes and decoding
    • H03M13/2975—Judging correct decoding, e.g. iteration stopping criteria
    • 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
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • H03M13/353—Adaptation to the channel
    • 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
    • H03M13/6337—Error control coding in combination with channel estimation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49748—Repairing by shaping, e.g., bending, extruding, turning, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/3042—Means to remove scale or raised surface imperfection
    • Y10T409/304256—Means to remove flash or burr

Abstract

Det er beskrevet en feilkorreksjonsdekoder (101) som bestemmer antall gjentatte dekodinger implementert i en prosess for en forutbestemt feilkorreksjonsberegning og som avgir det bestemte antall gjentatte dekodinger til en gjennomsnittsberegnende krets (102). Den gjennomsnittsberegnende krets (102) beregner en gjennomsnittsverdi av antallet gjentatte dekodinger avgitt fra feilkorreksjonsdekoderen (101) og avgir den beregnede gjennomsnittlige verdi av antallet gjentatte dekodinger til en komparator (103). Komparatoren (103) avgjør om gjennomsnittsverdien av antallet gjentatte dekodinger er større enn en terskelverdi. Når det avgjøres at gjennomsnittsverdien er større enn den forutbestemte terskelverdi, bestemmer komparatoren (103) at en betingelse for skifte av kanaler er tilfredsstilt og avgir så et kanalskiftesignal til en kanalskiftekrets (405). I et trådløst kommunikasjonssystem som benytter koder med høy kodegevinst som skal dekodes gjentatte ganger, kan således et kanalskiftesignal avgis på en passende betingelse uten å øke antallet kretser.
NO20090929A 2006-09-22 2009-02-27 Krets for avgivelse av kanalsvitsjesignal og tilsvarende fremgangsmate NO20090929L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006257482 2006-09-22
PCT/JP2007/068384 WO2008035763A1 (fr) 2006-09-22 2007-09-21 Circuit d'émission de signal de commutation de canal et procédé d'émission de signal de commutation de canal

Publications (1)

Publication Number Publication Date
NO20090929L true NO20090929L (no) 2009-06-22

Family

ID=39200586

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20090929A NO20090929L (no) 2006-09-22 2009-02-27 Krets for avgivelse av kanalsvitsjesignal og tilsvarende fremgangsmate

Country Status (7)

Country Link
US (2) US7458139B2 (no)
EP (1) EP2066065A4 (no)
JP (1) JP4835691B2 (no)
CN (1) CN101517954B (no)
NO (1) NO20090929L (no)
RU (1) RU2414077C2 (no)
WO (1) WO2008035763A1 (no)

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Also Published As

Publication number Publication date
EP2066065A4 (en) 2017-07-05
JP4835691B2 (ja) 2011-12-14
CN101517954A (zh) 2009-08-26
US8527847B2 (en) 2013-09-03
RU2414077C2 (ru) 2011-03-10
WO2008035763A1 (fr) 2008-03-27
CN101517954B (zh) 2013-03-06
EP2066065A1 (en) 2009-06-03
US7458139B2 (en) 2008-12-02
US20090292967A1 (en) 2009-11-26
JPWO2008035763A1 (ja) 2010-01-28
RU2009109851A (ru) 2010-09-27
US20080075551A1 (en) 2008-03-27

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