Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism
Reexamination Certificate
2009-08-27
2011-12-27
Nguyen, Hoa T (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
C360S097020
Reexamination Certificate
active
08085488
ABSTRACT:
A method and apparatus for determining the likelihood that a hard-disk drive (HDD) will experience an imminent error in operation is provided. The HDD comprises a differential pressure sensor capable of measuring the difference in the pressure between the interior and the exterior of the enclosure. The differential pressure sensor may reside in a breather filter covering an air passage within the enclosure. The HDD also comprises a risk assessment component capable of (a) determining an expression of how likely it is that the HDD will experience an imminent error in operation based, at least in part, upon the difference in pressure measured by the pressure sensor, and (b) communicating the expression to a user of the HDD. The HDD may optionally comprise one or more of an atmospheric pressure sensor, a particle counter, and a chemical vapor sensor which may be used by the risk assessment component.
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Brown Charles Allan
Feliss Norbert A.
Gillis Donald Ray
Hendriks Ferdinand
Brokaw Christopher J.
Habermehl James L
Hitachi Global Storage Technologies - Netherlands B.V.
Mahamedi Paradice Kreisman LLP
Nguyen Hoa T
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