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US 12,277,957 B1Granted
Data storage device with embedded mode hop predictor patterns
AssigneeWestern Digital Technologies, Inc.
InventorsGuoxiao Guo, Kei Yasuna
Life of this patent
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Abstract
Various illustrative aspects are directed to a data storage device, method, and one or more processing devices that are configured to: write a plurality of test servo patterns using a plurality of different write settings; select one of the plurality of different write settings based on analyzing the plurality of test servo patterns for mode hop; and write a plurality of final servo patterns using the selected one of the plurality of different write settings.
Claims20
A data storage device, comprising:
- one or more disks;
- an actuating mechanism comprising one or more heads, and configured to position the one or more heads proximate to disk surfaces of the one or more disks;
- and
- one or more processing devices, individually or in combination, configured to:
- write a plurality of test servo patterns using a plurality of different write settings;
- select one of the plurality of different write settings based on analyzing the plurality of test servo patterns for mode hop;
- and
- write a plurality of final servo patterns using the selected one of the plurality of different write settings.
5 more elements
A method comprising:
- writing a plurality of test servo patterns in a track of a disk using a plurality of different write settings;
- analyzing the plurality of test servo patterns for mode hop;
- selecting one of the plurality of different write settings based on the analyzing the plurality of test servo patterns for mode hop;
- and
- writing a plurality of final servo patterns in servo sectors in multiple tracks of the disk using the selected one of the plurality of different write settings,
- wherein the writing the plurality of test servo patterns, the analyzing the plurality of test servo patterns, the selecting one of the plurality of different write settings, and the writing the plurality of final servo patterns are performed by one or more processing devices individually or in combination.
3 more elements
One or more processing devices comprising:
- means for writing a plurality of test servo patterns in a track of a disk using a plurality of different write settings;
- means for selecting one of the plurality of different write settings based on analyzing the plurality of test servo patterns for mode hop;
- and
- means for writing a plurality of final servo patterns in servo sectors in multiple tracks of the disk using the selected one of the plurality of different write settings.
1 more element
Dependencies are inferred from the claim text.