TWO BIT PER SYMBOL SEC/DED CODE

摘要

A modularized error correction apparatus for correcting package errors is provided by expanding an N bit single error correction, double error detection code to cover N packages of M bits each, so that the Exclusive-OR of all M bit single bit error syndromes in any given package results in a composite syndrome which is unique for each package. See Fig. 2 for the parity matrix H and the matching matrix M for the error correction code.