Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2007-11-06
2007-11-06
Wellington, Andrea (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
C360S097010, C360S097030, C360S097040, C360S098010, C360S254400
Reexamination Certificate
active
10956919
ABSTRACT:
A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive can also function as the support structure for the capacitive sensors.
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Hirano Toshiki
Semba Tetsuo
White Matthew T.
Berthold Thomas R.
Garr Jason M.
Hitachi Global Storage Technologies - Netherlands B.V.
Wellington Andrea
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