Adaptive track shape control during self servo-write

Details Adaptive track shape control during self servo-write Adaptive track shape control during self servo-write

2011-02-01

2011-02-01

Mercedes, Dismery E (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S031000, C360S077020, C360S077040, C360S078040

Reexamination Certificate

active

07881004

ABSTRACT:
In a method for implementing track shape control during a self servo-write process, an error in a targeted path for writing servo data onto a first track of a disk is detected. The error is correlated with a second error for a targeted path in a previously written track of the disk. A correction is generated for a feed-forward signal used to position a writing element which is used to write servo data for a subsequent track of the disk.

REFERENCES:
patent: 5854722 (1998-12-01), Cunningham et al.
patent: 5930067 (1999-07-01), Andrews et al.
patent: 6487035 (2002-11-01), Liu et al.
patent: 6563663 (2003-05-01), Bi et al.
patent: 6608731 (2003-08-01), Szita
patent: 6631046 (2003-10-01), Szita et al.
patent: 6657810 (2003-12-01), Kupferman
patent: 6768609 (2004-07-01), Heydt et al.
patent: 6894862 (2005-05-01), Kusumoto
patent: 6937424 (2005-08-01), Chang et al.
patent: 6977792 (2005-12-01), Melrose et al.
patent: 6992853 (2006-01-01), Chang
patent: 7016140 (2006-03-01), Schultz et al.
patent: 7085094 (2006-08-01), Heimbaugh et al.
patent: 7088547 (2006-08-01), Wang et al.
patent: 7119981 (2006-10-01), Hanson et al.
patent: 7133239 (2006-11-01), Hartman et al.
patent: 7139149 (2006-11-01), Sun et al.
patent: 7161759 (2007-01-01), Zhang et al.
patent: 7199956 (2007-04-01), Moser et al.
patent: 7283321 (2007-10-01), Sun et al.
patent: 7286316 (2007-10-01), Sai et al.
patent: 7333280 (2008-02-01), Lifchits et al.
patent: 7433148 (2008-10-01), Wong
patent: 7576941 (2009-08-01), Chen et al.
patent: 7583470 (2009-09-01), Chen et al.
patent: 2002/0030920 (2002-03-01), Min et al.
patent: 2004/0125491 (2004-07-01), Iseri et al.
patent: 2007/0096678 (2007-05-01), Melrose
patent: 2007/0121235 (2007-05-01), Sai et al.
patent: 2007/0247737 (2007-10-01), Manzer
patent: 2008/0030894 (2008-02-01), Sun et al.
patent: 2008/0112073 (2008-05-01), Shelton
Zhao, et al., “A Novel Method to Restrain the Radial Error Propagation in Self-servowriting in Hard Disk”,Proceedings of the IEEE International Conference on Automation and Logistics, (Aug. 18, 2007),2736-2739.
Melkote, et al., “Modeling and Control for Self-servowriting in Hard Disk Drives: A Repetitive Process Approach”,Proceedings of the 2006 American Control Conference, (Jun. 14, 2006),2005-2008.
Nakamura, et al., “Control Design for Self Servo Track Writer using Estimation of the Head Position”,IEEE International Workshop on Advanced Motion Control, (2006),99-102.
Teoh, et al., “R/W Gap Delay Estimation for Self-servo Track Writing”,IEEE International Workshop on Advanced Motion Control, (2006),149-152.

Affiliated with

Also associated with

Rating

Adaptive track shape control during self servo-write does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive track shape control during self servo-write, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive track shape control during self servo-write will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2637991