Method, apparatus and program storage device for dynamically...

Details Method, apparatus and program storage device for dynamically... Method, apparatus and program storage device for dynamically...

2011-08-30

2011-08-30

Nguyen, Hoa T (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

C360S069000

Reexamination Certificate

active

08009379

ABSTRACT:
A method, apparatus and program storage device for dynamically adjusting the write current in each head to compensate for variation in disk drive and environmental parameters is disclosed. A current in the write head is dynamically adjusted to compensate for variations in the components and environment by periodically measuring the writability of the drive and adjusting the write current such that the parameter stays within predetermined criteria.

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Nov. 1994, IBM Technical Disclosure Bulletin, “Optimal Recording Head Performance Through Programmable Write Current,” vol. 37, No. 11, pp. 297-298.

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