Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Reexamination Certificate
2011-04-05
2011-04-05
Nguyen, Hoa T (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
Reexamination Certificate
active
07920350
ABSTRACT:
Data recovery information characterizes data recovery procedure (DRP) steps to be performed within a hard disk drive (HDD) in response to a miss. Particular data recovery information corresponds to a radial position of the actuator and, therefore, the position of the magnetic recording read/write head relative to the associated storage media at the location at which the miss occurred. The data recovery information is based on the physical shape of a write pole and on how the physical shape of the pole inherently affects operational data error associated with the head. Because of the foregoing characteristics of such data recovery information, a more efficient and performant data recovery procedure is performed based thereon.
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Au Hoan A.
Fkiaras Theofilos G.
Jen David H.
Lamberts Bernd
Schouterden Kris
Habermehl James L
Hitachi Global Storage Technologies - Netherlands B.V.
Nguyen Hoa T
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