TW200943735A - Data process device and data process method - Google Patents

Data process device and data process method

Info

Publication number
TW200943735A
TW200943735A TW97145358A TW97145358A TW200943735A TW 200943735 A TW200943735 A TW 200943735A TW 97145358 A TW97145358 A TW 97145358A TW 97145358 A TW97145358 A TW 97145358A TW 200943735 A TW200943735 A TW 200943735A
Authority
TW
Taiwan
Prior art keywords
code
data process
ldpc
error
symbol
Prior art date
Application number
TW97145358A
Other languages
Chinese (zh)
Inventor
Takashi Yokokawa
Makiko Yamamoto
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of TW200943735A publication Critical patent/TW200943735A/en

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
    • H03M13/03—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
    • 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]
    • H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] codes
    • 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
    • H03M13/27—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 using interleaving techniques
    • H03M13/2703—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 using interleaving techniques the interleaver involving at least two directions

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)

Abstract

The present invention relates to a data process device whose resistance against an error such as a burst error or an erasure error of a code bit of an LDPC code can be improved, and a data process method. When one symbol is composed of two or more bits of a code bit of an LDPC (Low Density Parity Check) code, a column twist interleaver (24) performs a rearrangement process in which the code bit of the LDPC code is rearranged so as not to perform a mapping in which the plurality of code bits corresponding to "1" in one arbitrary row of a check matrix are mapped to one symbol. The present invention can be applied to for example, a transmission device for transmitting the LDPC code.
TW97145358A 2007-11-26 2008-11-24 Data process device and data process method TW200943735A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007304690 2007-11-26
JP2008027756 2008-02-07
JP2008031724 2008-02-13

Publications (1)

Publication Number Publication Date
TW200943735A true TW200943735A (en) 2009-10-16

Family

ID=40678517

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97145358A TW200943735A (en) 2007-11-26 2008-11-24 Data process device and data process method

Country Status (2)

Country Link
TW (1) TW200943735A (en)
WO (1) WO2009069622A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2592772A1 (en) * 2011-11-10 2013-05-15 Panasonic Corporation Improved time diversity for rotated constellations
EP2779560B1 (en) 2011-11-10 2017-09-13 Sun Patent Trust Transmitting method, receiving method, transmitter and receiver
EP2592773A1 (en) * 2011-11-10 2013-05-15 Panasonic Corporation Improved diversity fo rotated constellations with time-frequency slicing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060097503A (en) * 2005-03-11 2006-09-14 삼성전자주식회사 Channel interleaving/de-interleaving apparatus in a communication system using a low density parity check code and control method thereof

Also Published As

Publication number Publication date
WO2009069622A1 (en) 2009-06-04

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