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US 12,431,161 B1Granted
Data storage device with track pitch determination for mitigating effects of servo pattern distortion
AssigneeWestern Digital Technologies, Inc.
InventorsHideki Zaitsu, So Ogiwara, Yoshio Soyama, Kei Yasuna, Shuji Nishida
Life of this patent
Estimating the term…
Abstract
Various illustrative aspects are directed to a data storage device, method, and one or more processing devices that are configured to: determine an initial track pitch based on a performance metric determined for the head; determine a track pitch adjustment based on a measure of servo pattern distortion associated with a region of the disk; and set a final track pitch for the region of the disk based on the track pitch adjustment and the initial track pitch.
Claims21
A data storage device comprising:
- a disk;
- a head actuated over the disk;
- and
- one or more processing devices, individually or in combination, configured to:
- determine an initial track pitch based on a performance metric determined for the head;
- determine a track pitch adjustment based on a measure of servo pattern distortion associated with a region of the disk;
- and
- set a final track pitch for the region of the disk based on the track pitch adjustment and the initial track pitch.
5 more elements
A method comprising:
- determining an initial track pitch based on a performance metric determined for a head;
- determining a track pitch adjustment based on a measure of servo pattern distortion associated with a region of a disk;
- and
- setting a final track pitch for the region of the disk based on the track pitch adjustment and the initial track pitch,
- wherein the determining the initial track pitch, the determining the track pitch adjustment, and the setting the final track pitch are performed by one or more processing devices individually or in combination.
2 more elements
One or more processing devices comprising:
- means for determining an initial track pitch based on a performance metric determined for a head;
- means for determining a track pitch adjustment based on a measure of servo pattern distortion associated with a region of a disk;
- and
- means for setting a final track pitch for the region of the disk based on the track pitch adjustment and the initial track pitch.
1 more element
Dependencies are inferred from the claim text.