H03M 13/095 Full Title
Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes (error detection or error correction for analogue/digital, digital/analogue or code conversion H03M1/00 – H03M11/00; specially adapted for digital computers G06F11/08; for information storage based on relative movement between record carrier and transducer G11B, e.g. G11B20/18; for static stores G11C) > Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words > using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits > Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.