Byte unidirectional error correcting and detecting codes

Efficient byte unidirectional error correcting codes that are better than byte symmetric error correcting codes are presented. The encoding and decoding algorithms are discussed. A lower bound on the number of check bits for byte unidirectional error correcting codes is derived. It is then shown that these codes are close to optimal. Capability of these codes for asymmetric error correction is also described. Codes capable of detecting double byte unidirectional errors are also given.<
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