Cantor Colburn LLP
Signal decoder, a signal decoding method and a storage system
An LDPC iteration decoder includes a second interleaver for performing interleave processing on a signal series outputted from a soft output detection unit, an LDPC decoder for implementing LDPC decoding processing on a signal that has undergone interleave processing; a checking unit for checking that an error has been corrected by the LDPC decoder; a second de-interleaver for performing sort processing the reverse of the second interleaver on a signal that has been LDPC decoded; a judging unit for judging whether to carry out iteration processing again; and a DAE for computing a likelihood again, in cases in which iteration decoding is carried out, and giving feedback to the front stage of the second interleaver.
Rohm Co., Ltd.
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Hidemichi Atsushi
Mizuno Esumi