Method and apparatus determining maximum read bias current...

Details Method and apparatus determining maximum read bias current... Method and apparatus determining maximum read bias current...

2005-05-24

2005-05-24

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

Reexamination Certificate

active

06898040

ABSTRACT:
The invention includes operating a merged read/write head in a disk drive by determining both the maximum read bias current and maximum write current, based upon the measured read resistance of the read mechanism and the write current in use with the write mechanism. Both the read mechanism and write mechanism are near each other in the merged read/write head.

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patent: 6097568 (2000-08-01), Ekhoff
patent: 6195219 (2001-02-01), Smith
patent: 6239943 (2001-05-01), Jennings et al.
patent: 2000-322870 (2000-11-01), None
patent: 2000-322871 (2000-11-01), None
patent: 2000-331460 (2000-11-01), None

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