SIMPLE DECODING METHOD AND APPARATUS

摘要

The invention relates to a method of decoding possibly mutilated codewords (r) of a code (C) into information words (m') comprising information symbols (m'>1<, m'>2<, ...,m'>k<), said information words (m) being encoded into codewords (c) of said code (C). In order to provide a method and apparatus for decoding such a code without the need to considerably deviate from the standard method and apparatus for decoding a standard Reed-Solomon code, a method of decoding is proposed according to the present invention, comprising the steps of : decoding said possibly mutilated codewords (r) into codewords (r'), reconstructing information symbols (m'>1<, m'>2<, ...,m'>k<) from said codewords (r'), comparing said reconstruct information symbols (m'>1<, m'>2<, ...,m'>k<) with information symbols (m>1<) known a priori before decoding, and verifying decoding errors based on the result of said comparison.