On-the-fly evaluation of the number of errors corrected in iterative ECC decoding

摘要: A decoder includes an interface and circuitry. The is configured to receive a code word that was encoded using Quasi-Cyclic Low Density Parity Check (QC-LDPC) Error Correcting Code (ECC) represented by multiple check equations are defined over variables. circuitry decode the iteratively processing layers each respective subset of variables word, producing per layer one or more count updates, generate total number errors corrected entire accumulating updates.