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A disk memory device comprises a head which reads a read-out signal from a disk, an amplifier which amplifies an analog signal waveform of the read-out signal read from the head, a filter which decreases a noise of the read-out signal output from the amplifier, an A/D converter which converts the re

A disk memory device comprises a head which reads a read-out signal from a disk, an amplifier which amplifies an analog signal waveform of the read-out signal read from the head, a filter which decreases a noise of the read-out signal output from the amplifier, an A/D converter which converts the read-out signal of which noise is decreased by the filter into a digital signal including a waveform distortion component, and a neural network type signal processing circuit which detects a binarized data from the digital signal.

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1. A disk memory device comprising:a head which reads a readout signal from a disk; an amplifier which amplifies an analog signal waveform of the read-out signal read from said head; a filter which decreases a noise of the read-out signal output from said amplifier; an A/D converter which converts t

1. A disk memory device comprising:a head which reads a readout signal from a disk; an amplifier which amplifies an analog signal waveform of the read-out signal read from said head; a filter which decreases a noise of the read-out signal output from said amplifier; an A/D converter which converts the read-out signal of which noise is decreased by said filter into a digital signal including a waveform distortion component; and a neural network type signal processing circuit which detects a binarized data from the digital signal, said neural network type signal processing circuit comprising an input layer, at least two hidden layers and an output layer and including a waveform equalizing function and a detecting function of the binarized data.