| 摘要 |
A magnetic disk apparatus with a magnetic disk medium capable of recording data magnetically,comprises a current perpendicular to plane magnetic reproducing head which includes a magnetoresistive effect element composed of a plurality of magnetic films stacked one on top of another and causes sense current to flow in the direction perpendicular to the stacked faces of the plurality of magnetic films, a high-pass filter which suppresses the low- frequency component of a reproduced signal output from the magnetic reproducing head, and a reproduced-signal processing section which reproduces the data from the reproduced signal which has the low-frequency component suppressed.
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