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AssigneeKabushiki Kaisha Toshiba
InventorsRichard M. EHRLICH, Anton L. GERASIMOV
Estimating the term…
In a disk drive, a wedge-based scheme is used to determine wedge offset correction values for a track of the disk drive. Correction values for the offset of each servo wedge are calculated wedge-by-wedge, based on the position error signal (PES) of the most recently measured servo wedge in combination with the measured PES of other servo wedges. To minimize transport delay of the servo, the majority of servo-control calculations may be pre-calculated prior to measuring the PES at the current wedge. Wedge offset correction values for a given servo wedge are corrected iteratively with each revolution of the storage disk.
In a disk drive that has a recording medium configured with a plurality of servo wedges, a method for generating a servo control signal for a transducer head of the disk drive after the transducer passes over a current servo wedge but before the transducer head passes over the next servo wedge, comprising the steps of:
In a disk drive that has a recording medium configured with a plurality of servo wedges #0 to #N−1, a method for generating a servo control signal for a transducer head of the disk drive, comprising the steps of:
A method for iteratively determining correction factors used in generating servo control signals for a transducer head of a disk drive that has a recording medium configured with N servo wedges (N>1), comprising the steps of:
Dependencies are inferred from the claim text.