Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2011-06-14
2011-06-14
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07961420
ABSTRACT:
An apparatus and method of adaptively controlling a flying height of a magnetic head above a disk in accordance with a change in a user environment of a disk drive apparatus includes determining if a parameter reset condition related to the flying height of the magnetic head has been set; measuring a temperature of a disk drive if the parameter reset condition has been set, obtaining a flying height profile representing a variation of spacing between the magnetic head and a disk in accordance with a variation of power supplied to a heater controlling the flying height of the magnetic head at the measured temperature, based on a reference flying height profile stored in the disk drive, and determining the power that is to be supplied to the heater of the magnetic head, the power corresponding to a target flying height of the magnetic head from the obtained flying height profile.
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Samsung Electronics Co,. Ltd.
Stanzione & Kim LLP
Tzeng Fred
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