Method and apparatus for writing servo data with...

Details Method and apparatus for writing servo data with... Method and apparatus for writing servo data with...

2006-04-25

2006-04-25

Sniezek, Andrew L. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S057000

Reexamination Certificate

active

07035036

ABSTRACT:
There is disclosed a servo writing method in which servo data is recorded by a perpendicular magnetic recording system. In the servo writing method, at the time of perpendicular magnetic recording of the servo data on a disk, a servo writing operation is executed including an offset process set based on the hard-easy transition shift (HETS) phenomenon.

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patent: 2001/0043418 (2001-11-01), Nishida et al.
patent: 2003/0021056 (2003-01-01), Shimomura
Muraoka et al. “200 KFRPI Data Recording Using a Novel Bi-Latered Head in Perpendicular Magneti Recording”, IEEE Transactions on Magnetics, vol. 29, No. 6, Nov. 1993.
Danish Search Report dated Jun. 30, 2005 for Singapore Appln. No. 200404525-8.

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