| 摘要 |
PROBLEM TO BE SOLVED: To provide a servo pattern having a unique track identification. SOLUTION: The invention relates to the pattern of a servo window based on amplitude eliminating the conventional necessity of a track identification mark, various servo writing devices capable of facilitating the creation of such servo patterns, and a head configuration. The pattern of the servo window also eliminates the conventional necessity of a synchronous mark. The servo window pattern itself enables identification of a certain track from other tracks in one or more servo bands, and synchronization is carried out essentially without needing any synchronous marks between servo frames. In other words, the servo window based on the same amplitude for defining the center line of the track is arranged to provide track identification information, and unique synchronous information if necessary. COPYRIGHT: (C)2005,JPO&NCIPI
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