MAGNETIC REPRODUCTION APPARATUS AND MAGNETIC REPRODUCTION METHOD

WIPO Patent Application WO/2003/010757

A1

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&sol amplifier (8). The equalized signal is supplied via an A&sol 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.

KOTANI YASUTAKA (JP)
YANAGI YUJI (JP)

PCT/JP2002/007315

February 06, 2003

July 18, 2002

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SONY CORP (JP)
KOTANI YASUTAKA (JP)
YANAGI YUJI (JP)

G11B5/39; G11B5/00; G11B5/008; G11B5/02; G11B5/035; G11B5/09; G11B20/00; G11B20/10; G11B20/18; G11B5/48; (IPC1-7): G11B5/09; G11B5/02; G11B20/10; G11B20/14

JPH10112014A	1998-04-28
US4885646A	1989-12-05
US20010005405A1	2001-06-28
JP2000339609A	2000-12-08
JPH09115103A	1997-05-02

Tsunoda, Yoshisue (Nishishinjuku 1-chome Shinjuku-ku, Tokyo, JP)

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