Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2007-12-04
2007-12-04
Wellington, Andrea (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S048000, C360S075000, C360S078040
Reexamination Certificate
active
11165638
ABSTRACT:
A method is disclosed for writing repeatable runout (RRO) correction values to a disk of a disk drive. The disk has distributed position information in a plurality of embedded servo sectors. The transducer head has a read element that is offset from a write element. The write element is positioned over a target track while the distributed position information from a followed track is read using the read element. The target track is different from the followed track due to the offset between the read element and the write element. Previously determined RRO correction values associated with the target track are written at radial positions on the target track. The radial positions are based on the distributed position information of the followed track, previously determined RRO correction values associated with the followed track, and a portion of the previously determined RRO correction values associated with the target track.
REFERENCES:
patent: 5751512 (1998-05-01), Anderson
patent: 5991115 (1999-11-01), Chainer et al.
patent: 5998994 (1999-12-01), Mori
patent: 6049440 (2000-04-01), Shu
patent: 6061201 (2000-05-01), Woods
patent: 6141175 (2000-10-01), Nazarian et al.
patent: 6317285 (2001-11-01), Bi et al.
patent: 6421197 (2002-07-01), Abdelnour
patent: 6493173 (2002-12-01), Kim et al.
patent: 6510017 (2003-01-01), Abdelnour
patent: 6545835 (2003-04-01), Codilian et al.
patent: 6580579 (2003-06-01), Hsin et al.
patent: 6654198 (2003-11-01), Liu et al.
patent: 6657810 (2003-12-01), Kupferman
patent: 6707635 (2004-03-01), Codilian et al.
patent: 6754030 (2004-06-01), Seng et al.
patent: 6775091 (2004-08-01), Sutardja
patent: 6831803 (2004-12-01), Hsin
patent: 6859341 (2005-02-01), Min et al.
patent: 6924959 (2005-08-01), Melkote et al.
patent: 6947248 (2005-09-01), Allen et al.
patent: 6963465 (2005-11-01), Melkote et al.
patent: 6963466 (2005-11-01), Baum et al.
patent: 6965491 (2005-11-01), Perlmutter et al.
patent: 6972922 (2005-12-01), Subrahmanyam et al.
patent: 7088547 (2006-08-01), Wang et al.
patent: 7119981 (2006-10-01), Hanson et al.
patent: 7133243 (2006-11-01), Hirano et al.
patent: 7139149 (2006-11-01), Sun et al.
patent: 7193808 (2007-03-01), Takaishi
patent: 7193809 (2007-03-01), Allen
patent: 2003/0210060 (2003-11-01), Schmid
patent: 2007/0047133 (2007-03-01), Allen
McNab Robert J.
Melkote Hemant
Fawcett, Esq. Robroy R.
Jones, Esq. Brian E.
Mercedes Dismery
Wellington Andrea
Western Digital Technologies Inc.
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