Disk drive correcting track address during a write operation
AssigneeWestern Digital Technologies, Inc.
InventorsTeik E E Yeo, Weiping Chen Jiang
Life of this patent
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AssigneeWestern Digital Technologies, Inc.
InventorsTeik E E Yeo, Weiping Chen Jiang
Estimating the term…
A disk drive is disclosed comprising a head actuated over a disk having a plurality of servo tracks, wherein each servo track comprises a plurality of servo sectors and each servo sector comprises a track address. A read signal from the head representing a first track address in one of the servo sectors is processed in order to generate a detected track address which is compared to a first target track address to obtain a first track address error. A correction metric is generated representing a likelihood that the first track address error was caused by a detection error, and if the correction metric exceeds a threshold, the detected track address is corrected in response to the first track address error, and the write operation is continued. If the correction metric does not exceed the threshold, the write operation is aborted.
A disk drive comprising:
A method of performing a write operation in a disk drive, the disk drive comprising a disk having a plurality of servo tracks, wherein each servo track comprises a plurality of servo sectors and each servo sector comprises a track address identifying the servo track, and a head actuated over the disk, the method comprising:
Dependencies are inferred from the claim text.