CODING AND DECODING METHOD AND CODEC OF ERROR CORRECTION CODE

摘要

A coding and decoding method and a codec of an error correction code are provided. The method comprises the following steps: receiving original data; dividing the original data into a plurality of blocks of data; generating short parities of the blocks of data according to a first generator polynomial, respectively; attaching the short parities to the blocks of data from behind to respectively generate a plurality of short code words; combining the short code words to obtain coded data; generating a long parity of the coded data according to a second generator polynomial, wherein the first generator polynomial is a function of at least one minimal polynomials of the second generator polynomial; attaching the long parity to the coded data from behind to generate a long code word of the error correction code. The method reduces the time for correcting error codes, thus improving the efficiency of the decoder.