Dynamic magnetic information storage or retrieval – Fluid bearing head support – Disk record
Reexamination Certificate
2006-04-11
2006-04-11
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Fluid bearing head support
Disk record
C360S235700, C360S128000, C360S031000, C360S069000, C360S025000, C360S046000
Reexamination Certificate
active
07027263
ABSTRACT:
A slider having leading and trailing edges is configured to fly on an airbearing above a data storage disk rotating from the leading edge to the trailing edge. Read and write heads are mounted on the slider proximate the trailing edge. An auxiliary thermal sensor is mounted on the slider, but preferably nearer the leading edge. Forward placement of the sensor allows it to sense mechanical defects before they reach the heads, thereby permitting a write inhibit operation, for example. The sensor may also be used to detect airbearing modulation. Appropriate action may be taken when unacceptable airbearing modulation is detected, such as notifying the user and/or scrubbing the slider. The sensor is preferably wider than the heads. This allows, for example, an in-situ glide test to be performed faster using the sensor. An arm electronics module is preferably configured to permit concurrent operation of the sensor and heads.
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Ottesen Hal Hjalmar
Smith Gordon James
Sri-Jayantha Sri M.
Chambliss Bahner & Stophel P.C.
Figueroa Natalia
Hitachi Global Storage Technologies - Netherlands B.V.
Hudspeth David
Lynch David W.
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