ADDING KNOWN DATA TO CRC PROCESSING WITHOUT INCREASED PROCESSING TIME

摘要

Cyclic redundancy check processing can be applied advantageously to a set of input data that includes an unknown data portion (13) and a data portion that is already known before the unknown data portion becomes available. A syndrome contribution (22) that the already-known data portion contributes to a syndrome (11) for the set of input data can be determined (25, 26) before the unknown data portion becomes available. When the unknown data portion becomes available, the syndrome for the set of input data can be determined based on the unknown data portion and the syndrome contribution.