Global Patent Index - EP 1820275 A1

EP 1820275 A1 20070822 - LDPC ENCODER AND DECODER AND LDPC ENCODING AND DECODING METHODS

Title (en)

LDPC ENCODER AND DECODER AND LDPC ENCODING AND DECODING METHODS

Title (de)

LDPC-KODIERER UND -DEKODIERER SOWIE VERFAHREN ZUM LDPC-KODIEREN UND -DEKODIEREN

Title (fr)

CODEUR ET DECODEUR LDPC ET PROCEDES DE CODAGE ET DE DECODAGE LDPC

Publication

EP 1820275 A1 20070822 (EN)

Application

EP 05821430 A 20051207

Priority

  • KR 2005004177 W 20051207
  • KR 20040103240 A 20041208
  • KR 20050063905 A 20050714

Abstract (en)

[origin: WO2006062351A1] Provided are an LDPC encoder and decoder, and LDPC encoding and decoding methods. The LDPC encoder includes: a code generating circuit that includes a memory storing a first parity check matrix and sums a first row which is at least one row of the first parity check matrix and a second row which is at least one of the remaining rows of the first parity check matrix to output a second parity check matrix; and an encoding circuit receiving the second parity check matrix and an information word to output an LDPC-encoded code word. Also the LDPC decoder includes: a code generating circuit including a memory which stores a first parity check matrix and summing a first row which is at least one row of the first parity check matrix and a second row which is at least one of the remaining rows of the first parity check matrix to output a second parity check matrix; and a decoding circuit receiving the second parity check matrix and a code word to output an LDPC-decoded information word.

IPC 8 full level

H03M 13/11 (2006.01)

CPC (source: EP)

H03M 13/116 (2013.01); H03M 13/1168 (2013.01); H03M 13/118 (2013.01); H03M 13/616 (2013.01); H03M 13/6356 (2013.01); H03M 13/6516 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006062351 A1 20060615; EP 1820275 A1 20070822; EP 1820275 A4 20091125

DOCDB simple family (application)

KR 2005004177 W 20051207; EP 05821430 A 20051207