| 摘要 |
A read circuit of a disc driving circuit and a signal processing method of the read circuit are provided to adaptively remove a signal-dependent noise by using small hardware. A sequence detector(1440) recovers a data sequence from equalized data, and generates recovery data. A signal-dependent adaptive engine(1450) generates a plurality of signal-dependent coefficients, an average of signal-dependent errors, and a standard deviation of the signal-dependent errors on the basis of the equalized data and the recovery data. A signal-dependent post processor(1460) corrects a signal-dependent error included in the recovery data on the basis of the recovery data, a plurality of the signal-dependent coefficients, the average of the signal-dependent errors, and the standard deviation of the signal-dependent error, and generates the first data.
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