Patent ID: 6049437
Filing Date: 2000-04-11
Classification: G11B

Abstract:
A disk for a hard disk drive, comprising:a disk having a plurality of tracks, each track including a first set of Q sectors and a second set of no more than Q-1 sectors, each sector in the first set of Q sectors including a portion of a first servo pattern, said portions of the first servo pattern in the first set of Q sectors, in combination, to allow a hard disk drive servo system to acquire servo lock on the first servo pattern, each sector in the second set of no more than Q-1 sectors including a portion of a second servo pattern, said portions of the second servo pattern in the second set of no more than Q-1 sectors to prevent the hard disk drive servo system to acquire servo lock on the second servo pattern, where Q is a positive whole number greater than one and the first servo pattern is different from the second servo pattern.