Method of servo writing, method of compensating phase...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head

Reexamination Certificate

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C360S076000, C360S048000, C360S077080

Reexamination Certificate

active

08031427

ABSTRACT:
A method of servo writing for each track of a magnetic recording medium divided into a plurality of circular tracks including performing a phase adjustment operation by controlling a phase of a recording current according to a skew angle formed by a magnetic head and a track of the magnetic recording medium, and writing a servo pattern when the magnetic recording medium is magnetized using a magnetic head so as to have a magnetized pattern corresponding to a servo pattern.

REFERENCES:
patent: 5790341 (1998-08-01), Cunningham et al.
patent: 2004/0105186 (2004-06-01), Yano
patent: 2008/0123209 (2008-05-01), Nakada et al.
patent: 2001-189062 (2001-07-01), None
patent: 2006-009932 (2006-01-01), None
patent: 2007-122806 (2007-05-01), None

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