Hollingsworth Davis, LLC
Activating a magnetic writer to recover from read errors due to reader instability
A recording medium is written to using an energy source that heats the medium during the writing. A read error in a sector is determined when reading via a read transducer. While traversing a part of the recording medium that includes data, a write coil is activated before attempting to re-read the sector. The energy source does not heat the recording medium sufficiently to change a state of the data during the activation of the write coil. The activation of the write coil removes a magnetic instability of the read transducer.
SEAGATE TECHNOLOGY LLC
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Jason C. Wenzhong Alfredo Sam
Jury Zhu Chu