Apparatus and method to control flying height of magnetic...

Details Apparatus and method to control flying height of magnetic... Apparatus and method to control flying height of magnetic...

2007-04-02

2009-10-13

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07602571

ABSTRACT:
An apparatus and method to retry data read and write while changing a flying height of a magnetic head in a disk drive. The apparatus includes the magnetic head including a magnetic read element to sense a magnetic field on a disk and a magnetic write element to magnetize the disk, having a structure to generate an air bearing surface between the surface of the disk and the magnetic read and write elements, and includes a heater heating an assembly to generate the air bearing surface, a controller to generate a power control signal to adjust a flying height of the magnetic head in a retry mode, and a heater power supply circuit to generate power corresponding to the power control signal and to supply the power to the heater.

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