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US 2014/0347761 A1Published application
Data decoding control apparatus, data storage apparatus and data decoding method
AssigneeKabushiki Kaisha Toshiba
InventorTomokazu Okubo
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Abstract
According to one embodiment, a data decoding control apparatus includes a reading controller and a decoding controller. The reading controller reads the encoded data of a symbol unit bit by bit from a storage medium. The decoding controller computes a log-likelihood ratio (LLR) value of the symbol unit for estimate decoding calculation relative to the encoded data based on the number of bit inversion in a symbol of the encoded data and a correction factor.
Claims20
A data decoding control apparatus comprising:
- a reading controller configured to read encoded data of a symbol unit bit by bit;
- a decoding controller configured to calculate a log-likelihood ratio (LLR) value of the symbol unit for estimate decoding calculation relative to the encoded data based on the number of bit inversion included in a symbol of the encoded data and a correction factor.
A method of data decoding, the method comprising:
- reading encoded data of a symbol unit bit by bit from a storage medium;
- and
- calculating a log-likelihood ratio (LLR) value of the symbol unit for estimate decoding calculation relative to the encoded data based on the number of bit inversion included in a symbol of the encoded data and a correction factor.
Dependencies are inferred from the claim text.