Disk drive comprising slanted line servo burst sets offset...

Details Disk drive comprising slanted line servo burst sets offset... Disk drive comprising slanted line servo burst sets offset...

2008-09-29

2010-06-29

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077080

Reexamination Certificate

active

07746594

ABSTRACT:
A disk drive is disclosed comprising a disk having servo data defining a plurality of servo tracks. The servo data comprises a preamble, and a plurality of slanted line servo bursts recorded at a tilt angle with respect to the preamble. The slanted line servo bursts comprises a first plurality of slanted line servo bursts and a second plurality of slanted line servo bursts, wherein the second plurality of slanted line servo bursts are offset radially from the first plurality of slanted line servo bursts. A position error signal (PES) is generated in response to a phase difference when reading the preamble and the slanted line servo bursts.

REFERENCES:
patent: 4549232 (1985-10-01), Axmear et al.
patent: 5689384 (1997-11-01), Albrecht et al.
patent: 6219197 (2001-04-01), Brown et al.
patent: 6256160 (2001-07-01), Liikanen et al.
patent: 6304407 (2001-10-01), Baker et al.
patent: 6590729 (2003-07-01), Akagi et al.
patent: 6754016 (2004-06-01), Messner et al.
patent: 6757116 (2004-06-01), Curtiss et al.
patent: 6781778 (2004-08-01), Molstad et al.
patent: 6961203 (2005-11-01), Baker
patent: 6967808 (2005-11-01), Bandic et al.
patent: 6977789 (2005-12-01), Cloke
patent: 6999258 (2006-02-01), Molstad et al.
patent: 7002763 (2006-02-01), Bui et al.
patent: 7009802 (2006-03-01), Ehrlich
patent: 7019925 (2006-03-01), Ehrlich
patent: 7054092 (2006-05-01), Ehrlich
patent: 7085093 (2006-08-01), Oki
patent: 7092182 (2006-08-01), Ehrlich et al.
patent: 7092183 (2006-08-01), Ehrlich
patent: 7167329 (2007-01-01), Baker
patent: 7206148 (2007-04-01), Ehrlich
patent: 7236325 (2007-06-01), Albrecht et al.
patent: 7298582 (2007-11-01), Asakura et al.
patent: 7312939 (2007-12-01), Bandic et al.
patent: 7355810 (2008-04-01), Asakura
patent: 7440224 (2008-10-01), Ehrlich et al.
patent: 2005/0180040 (2005-08-01), Dugas et al.
patent: 2005/0259364 (2005-11-01), Yip
patent: 2006/0044671 (2006-03-01), Weber et al.
patent: 2007/0025010 (2007-02-01), Miles
Che et al, “Study of Lithographically Defined Data Track and Servo Patterns”, IEEE Transactions on Magnetics, vol. 43, No. 12, Dec. 2007, pp. 4106-4112.
Office Action dated Oct. 23, 2009 from U.S. Appl. No. 12/240,254, 11 pages.
Notice of Allowance dated Feb. 25, 2010 from U.S. Appl. No. 12/240,254, 7 pages.

Affiliated with

Also associated with

Rating

Disk drive comprising slanted line servo burst sets offset... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk drive comprising slanted line servo burst sets offset..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive comprising slanted line servo burst sets offset... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4223068