Patent ID: 7185263
Filing Date: 2007-02-27
Classification: G11B,H03M

Abstract:
1. A method of decoding possibly mutilated code words (r) of a code (C), wherein an information word (m) and an address word (a) are encoded into a code word (c) of said code (c) using a generator matrix (G) and wherein said address words (a) are selected such that address words (a) having a predetermined relationship are assigned to consecutive code words (c), said method comprising the steps of: decoding differences (D) of at least two (L−1) pairs of possibly mutilated code words (r combining said estimates (u, v) to obtain a number (L) of at least two corrupted versions (w forming a code vector (z) from said number (L) of corrupted versions (w decoding said code vector (z) to obtain a decoded code word (c′) in said code (C); and using said generator matrix (G) to obtain the information word (m) and the address word (a) embedded in said decoded code word (c′).