Ramp detection during servo-writing of a disk for a disk drive

Details Ramp detection during servo-writing of a disk for a disk drive Ramp detection during servo-writing of a disk for a disk drive

2011-01-11

2011-01-11

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07869155

ABSTRACT:
A servo writer to detect a ramp is disclosed. The servo writer includes a head positioner to position a head of an actuator arm of a head disk assembly relative to a disk and a controller to: control the head positioner to move the head of the actuator arm toward a ramp of the disk; determine a head positioner value generated by the head positioner to move the head; and detect the ramp when the head positioner value exceeds a predetermined threshold.

REFERENCES:
patent: 5384675 (1995-01-01), Crawforth et al.
patent: 5559648 (1996-09-01), Hunter et al.
patent: 6563660 (2003-05-01), Hirano et al.
patent: 6590732 (2003-07-01), Kitagawa et al.
patent: 6643088 (2003-11-01), Kawachi
patent: 6721121 (2004-04-01), Schreck et al.
patent: 6902007 (2005-06-01), Orr et al.
patent: 6920007 (2005-07-01), Tominaga et al.
patent: 7019932 (2006-03-01), Hirano et al.
patent: 7046475 (2006-05-01), Hosokawa
patent: 7088533 (2006-08-01), Shepherd et al.
patent: 7391586 (2008-06-01), Keast
patent: 7486466 (2009-02-01), Hara et al.
patent: 2005/0152060 (2005-07-01), Gururangan et al.
patent: 2005/0280916 (2005-12-01), Calfee et al.
patent: 2006/0005403 (2006-01-01), Calfee et al.
www.microesys.com/dataStorage/specifications.html.
http://www.microesys.com/pdf/pa2000.pdf, “PA 2000 High Performance Positioning System for Servotrack Writers”, MicroE Systems, PA2000 Rev.S1, 2 pages.

Affiliated with

Also associated with

Rating

Ramp detection during servo-writing of a disk for a disk drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ramp detection during servo-writing of a disk for a disk drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ramp detection during servo-writing of a disk for a disk drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2649102