Disk drive head resetting system using slider heater

Details Disk drive head resetting system using slider heater Disk drive head resetting system using slider heater

2006-05-09

2006-05-09

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07042674

ABSTRACT:
The invention is generally directed to a disk drive head resetting system. The system has a slider with a disk drive head associated therewith. The disk drive head may be on the slider and affixed thereto. A heater is also associated with a slider and spaced apart from the disk drive head. A controller is communicatively coupled to the heater and to the head to transfer a first control signal to the heater and a second control signal to the disk drive head at substantially the same time. The first control signal may be used to generate heat past a blocking temperature of the head to substantially free a magnetic orientation of the head. While the first control signal is being transferred to the heater, a second control signal is transferred to the disk drive head to align a magnetic orientation of the head to a desired magnetic orientation.

REFERENCES:
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patent: 6366420 (2002-04-01), Ranmuthu et al.
patent: 2003/0099054 (2003-05-01), Kamijima
patent: 2005/0105204 (2005-05-01), Bloodworth et al.
U.S. Appl. No. 10/859,917, filed Jun. 3, 2004, Yan et al.

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