US 6,982,937 B2 | ||
Data reproducing apparatus | ||
Toshikazu Kanaoka, Kawasaki (Japan); Masakazu Taguchi, Kawasaki (Japan); and Akiyoshi Uchida, Kawasaki (Japan) | ||
Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
Filed on Apr. 03, 2002, as Appl. No. 10/124,928. | ||
Claims priority of application No. 2001-392780 (JP), filed on Dec. 25, 2001. | ||
Prior Publication US 2003/0117914 A1, Jun. 26, 2003 | ||
Int. Cl. G11B 5/09 (2006.01) |
U.S. Cl. 369—47.17 | 15 Claims |
1. A data reproducing apparatus, wherein a crosstalk component of at least one adjoining track is removed from a reproduced
signal obtained by a reproduction head scanning over a target recording track of a recording medium, and recorded data are
reproduced according to a predetermined algorithm from the reproduced signal after removing the crosstalk component, comprising:
crosstalk amount detection means that detects magnitude of the crosstalk component (crosstalk amount) indicative of a degree
of influence of the crosstalk from at least one adjoining track to a desired signal from the target recording track,
phase difference measurement means that measures an amount of a phase difference between the desired signal and the crosstalk
component, and
crosstalk component generation means that generates a crosstalk component that should be removed from the reproduced signal,
based on the crosstalk amount and the phase difference.
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