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1. (WO2001006661) CODING METHOD AND DEVICE WITH AT LEAST TWO PARALLEL CODING STEPS AND IMPROVED PERMUTATION, AND CORRESPONDING DECODING METHOD AND DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/006661 International Application No.: PCT/FR2000/002080
Publication Date: 25.01.2001 International Filing Date: 19.07.2000
Chapter 2 Demand Filed: 21.12.2000
IPC:
H03M 13/27 (2006.01) ,H03M 13/29 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
13
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
27
using interleaving techniques
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
13
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
29
combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
Applicants:
BERROU, Claude [FR/FR]; FR (UsOnly)
GLAVIEUX, Alain [FR/FR]; FR (UsOnly)
FRANCE TELECOM [FR/FR]; 6, place d'Alleray F-75015 Paris, FR (AllExceptUS)
GROUPE DES ECOLES DE TELECOMMUNICATIONS-ETABLISSEMENT ENST DE BRETAGNE [FR/FR]; 46, rue Barrault F-75634 Paris, FR (AllExceptUS)
Inventors:
BERROU, Claude; FR
GLAVIEUX, Alain; FR
Agent:
VIDON, Patrice; Immeuble Germanium 80, avenue des Buttes de Coësmes F-35700 Rennes, FR
VIDON, Patrice; Cabinet Patrice Vidon Le Nobel 2, allée Antoine Becquerel Boîte postale 90 33 F-35703 Rennes Cedex 7, FR
Priority Data:
99/0963121.07.1999FR
Title (EN) CODING METHOD AND DEVICE WITH AT LEAST TWO PARALLEL CODING STEPS AND IMPROVED PERMUTATION, AND CORRESPONDING DECODING METHOD AND DEVICE
(FR) PROCEDE ET DISPOSITIF DE CODAGE A AU MOINS DEUX CODAGES EN PARALLELE ET PERMUTATION AMELIOREE, ET PROCEDE ET DISPOSITIF DE DECODAGE CORRESPONDANTS
Abstract:
(EN) The invention concerns a method and a device for coding source digital data, using in parallel at least two elementary coding steps (11, 12) each including the whole set of source data (15), and comprising a permutation step (13) modifying the inclusion order of said source data between said elementary coding steps (11, 23). The invention is characterised in that said source data (15) are organised in source code words each including n binary source elements, n being not less than 2, and said permutation step (13) comprises a reversible modification step (132) of the content of at least certain source code words, delivering modified code words; a step (131) of permutation of the order of said modified or source code words.
(FR) L'invention concerne un procédé et un dispositif de codage de données numériques source, mettant en oeuvre en parallèle au moins deux étapes (11, 12) de codage élémentaire prenant chacune en compte l'ensemble desdites données source (15), et comprenant une étape de permutation (13) modifiant l'ordre de prise en compte desdites données source entre lesdites étapes (11, 12) de codage élémentaire. Selon l'invention, lesdites données source (15) sont organisées en mots de code source comprenant chacun n éléments binaires source, n supérieur ou égal à 2, et ladite étape de permutation (13) comprend: une étape (132) de modification réversible du contenu d'au moins certains desdits mots de code source, délivrant des mots de code modifiés; une étape (131) de permutation de l'ordre desdits mots de code source ou modifiés.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)