ERROR CORRECTING DEVICE AND OPTICAL DISK READER COMPRISING SAME

摘要

The invention concerns a Reed-Solomon type error correcting device (1), comprising a syndrome generator (2), means (3) determining error locating and assessing polynomial coefficients, means (4) determining the position and value of errors, said means (3) determining coefficients being capable of using the extended Euclid's algorithm. The device is characterised in that the means (3) determining coefficients are arranged to produce the error locating polynomial ( LAMBDA (z)), and an erasing polynomial (E(z)) to obtain a new error locating polynomial ( PSI (z)). The invention also concerns an optical disk reader comprising such a device.