METHOD AND APPARATUS FOR ERASURE DECODING AN ECC CODED BITSTREAM

摘要

The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues (31) is derived from given DC control bits (32) that are anyway present in a data stream.