| 摘要 |
<p>A patterned magnetic storage medium (107) has a plurality of data sectors (314) separated by respective servo sectors (310) with each servo sector having a pattern of pits (318) representing servo data. Grooves (322) in each data sector separate adjacent tracks. Non-uniform means, such as lands (324) patterns the grooves (322) to a model of minimum or zero fly height perturbations of a slider adjacent the medium. The non-uniform means preferably comprises lands (324) pseudo-randomly spaced along each groove (322) to form segmented grooves of pseudo-randomly length, with the lands being pseudo-randomly positioned across the data sector. In other embodiments, the servo sectors (310) have lengths (Ls) along each track (312) to define a null frequency (Fnull) that matches a pitch frequency of modulation of a slider due to the pits of the servo sectors.</p> |
