Bit converter and bit conversion method
AssigneeKabushiki Kaisha Toshiba
InventorKenji Yoshida
Life of this patent
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Abstract
An embodiment of a bit converter includes a substitution module and an output module. The substitution module substitutes a decision result representing one of “0” and “1” for input bit information based on a substitution rule for bit information for converting a bit string of a predetermined pattern into a predetermined code word. The output module outputs the decision result of the bit information substituted by the substitution module, to a decoder configured to decode the decision result into the predetermined code word.
Claims10
A bit converter between an upstream decoder and a downstream decoder, comprising:
- a substitution module configured to substitute a decision result from the upstream decoder representing a bit string of a predetermined pattern based on a substitution rule for converting the bit string of the predetermined pattern into a predetermined correct code word, the predetermined pattern being used for inspection and having a pattern that cannot be converted into the predetermined correct code word by the downstream decoder;
- and
- an output module configured to output the decision result from the upstream decoder as substituted by the substitution module, to the downstream decoder.
A bit converter between an upstream decoder and a downstream decoder, comprising:
- a substitution module configured to substitute a likelihood of each member of a Galois field based on a substitution rule for converting a symbol string formed of a plurality of bits of a predetermined pattern into a predetermined code word, the predetermined pattern being used for inspection and having a pattern that cannot be converted into the predetermined correct code word by the downstream decoder;
- and
- an output module configured to output the likelihood of each member of the Galois field as substituted by the substitution module, to the downstream decoder.
A bit conversion method to be executed in a bit converter that is between an upstream decoder and a downstream decoder, the bit conversion method comprising:
- substituting a decision result from the upstream decoder representing a bit string of a predetermined pattern based on a substitution rule for converting the bit string of the predetermined pattern into a predetermined correct code word, the predetermined pattern being used for inspection and having a pattern that cannot be converted into the predetermined correct code word by the downstream decoder;
- and
- outputting the decision result from the upstream decoder as substituted according to said substituting, to the downstream decoder.
Dependencies are inferred from the claim text.