Method and apparatus for tuning a magnetoresistive bias...

Details Method and apparatus for tuning a magnetoresistive bias... Method and apparatus for tuning a magnetoresistive bias...

2005-06-07

2005-06-07

Faber, Alan T. (Department: 2651)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S066000, C360S053000, C360S046000

Reexamination Certificate

active

06903889

ABSTRACT:
A method of tuning a bias parameter for a magnetoresistive head in a data storage system includes the step of identifying, from multiple possible bias parameter values, a smallest bias parameter value for the magnetoresistive head which both maintains a bit error rate above a predetermined threshold bit error rate, and which satisfies a second criteria. The method then includes the step of setting an operational bias parameter value for the magnetoresistive head to the identified smallest bias parameter value. Also disclosed are data storage systems, or controllers which are connectable to or included with data storage systems, configured to implement the methods.

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