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AssigneeWestern Digital Technologies, Inc.
InventorsRaffi Codilian, Iftikhar A. Baqai
Estimating the term…
A disk drive is disclosed for optimizing write current settings relative to drive operating characteristics and a plurality of ambient temperature readings. Test data is written to and read from the disk to generate quality metrics that are evaluated to generate an optimized write current setting for each ambient temperature reading. In one embodiment, the optimized write current settings are derived during manufacturing and used in-the-field during normal operation. In another embodiment, the optimized write current settings are re-optimized in-the-field to compensate for changes in the drive operating characteristics that occur over time (e.g., environmental changes and electrical and mechanical changes).
A disk drive having drive operating characteristics, the disk drive comprising:
A method of executing a write current optimization procedure for a disk drive having drive operating characteristics, the disk drive comprising a disk, a head actuated radially over the disk, and a programmable write driver for applying a write current to the head during write operations, the method comprising the steps of:
Dependencies are inferred from the claim text.