Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Reexamination Certificate
2006-05-09
2006-05-09
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
C360S075000, C360S069000, C073S012010, C073S012040, C073S012090
Reexamination Certificate
active
07042663
ABSTRACT:
A magnetic disk device protection mechanism comprises a sensor that acquires information on changes in the environment of a magnetic disk device, a sensor driver, a shock manager that analyzes the information acquired by the sensor driver together with a history of the information to determine the status where the magnetic disk device is used to predict a shock, and an HDD filter driver that controls operations of the magnetic disk device including the escape of a magnetic head. The magnetic disk device can also comprise a diagnosis processing section that operates if a shock has occurred actually, to check whether or not the magnetic head could have completely escaped before the occurrence of this shock to carry out diagnosis as to whether or not a fault is occurring in the magnetic disk.
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Noguchi Tetsuya
Ogawa Mitsuru
Shimotono Susumu
Tanaka Akiyoshi
Hitachi Global Storage Technologies - Netherlands B.V.
Hudspeth David
Mercedes Dismery
Zilka-Kotab, PC
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