发明名称 MAGNETIC REPRODUCTION APPARATUS AND MAGNETIC REPRODUCTION METHOD
摘要 <p>A magnetic reproduction apparatus and a magnetic reproduction method which can preferably be used when reproducing a magnetic tape by using, for example, a magnetoresistive element. A signal read by a reproduction head (7) from a recording medium (6) is amplified and equalized by a reproduction equalizer/amplifier (8). The equalized signal is supplied via an A/D converter (9) to a circuit (10) having a channel characteristic of, for example, partial response class 4 (PR4). An output signal from the circuit (10) is supplied to a decoder circuit (11) of PR4 for signal sensing. Thus, by using the sensing method (PR4) not using the low range component of the reproduced signal, it is possible to eliminate affect of cross-talk signal caused by reproduction trace protruding into the adjacent recording track. By employing reproduction by the non-tracking method, it is possible to reduce the width of the recording track and increase the recording density of the magnetic tape.</p>
申请公布号 WO2003010757(P1) 申请公布日期 2003.02.06
申请号 JP2002007315 申请日期 2002.07.18
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