Patent ID: 6421806
Filing Date: 2002-07-16
Classification: H04L

Abstract:
Information transfer method, characterised in that:it uses:an alphabet Z2t={0, 1, 2, . . . 2tâˆ’1} having 2t elements, where t is at least equal to 3, and in which additions and multiplications are carried out modulo 2t, and a cyclic code, possibly abbreviated, referred to as a lifted Hamming code obtained by lifting a binary Hamming code, and whose generator polynomial is the lifting into Z2t of a generator polynomial of odd degree in {0, 1} of such a binary Hamming code; and it includes:an operation of coding (302) the information by a sequence of words of the said lifted Hamming code, a labelling operation (303), during which each letter of the alphabet Z2t is used to label a letter of a numerical alphabet A, so that, for any pair of adjacent symbols of A, the label of one of these symbols is the residue modulo 2t of the label of the other incremented by 1, for each word of the said lifted Hamming code, an operation of transmitting (305) signals, a physical quantity of which is proportional to the elements of A labelled by each of the symbols of the words of the said lifted Hamming code.