Methods and apparatuses for writing spiral servo patterns...

Details Methods and apparatuses for writing spiral servo patterns... Methods and apparatuses for writing spiral servo patterns...

2006-11-07

2006-11-07

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07133239

ABSTRACT:
Methods and apparatuses for writing spiral servo patterns on a disk surface are disclosed. In one embodiment, a method is provided to write servo information onto a disk surface in spiral patterns in a non-sequential manner. In another embodiment, a thermal warm-up regimen is performed prior to writing spiral patterns onto the disk surface. In another embodiment, a reference track is used to position a write head when writing spiral patterns onto the disk surface. By using one or more of the above embodiments, the affects of thermal and/or mechanical changes may be reduced when writing spiral patterns.

REFERENCES:
patent: 4157577 (1979-06-01), Porter et al.
patent: 4587579 (1986-05-01), Cocke et al.
patent: 5003412 (1991-03-01), Bizjak et al.
patent: 5119248 (1992-06-01), Bizjak et al.
patent: 5164863 (1992-11-01), Janz
patent: 5519546 (1996-05-01), Lewis
patent: 5583712 (1996-12-01), Brunelle
patent: 5668679 (1997-09-01), Swearingen et al.
patent: 5793559 (1998-08-01), Shepherd et al.
patent: 6084738 (2000-07-01), Duffy
patent: 6091564 (2000-07-01), Codilian et al.
patent: 6144517 (2000-11-01), Watanabe et al.
patent: 6388833 (2002-05-01), Golowka et al.
patent: 6476995 (2002-11-01), Liu et al.
patent: 6507450 (2003-01-01), Elliott
patent: 6587293 (2003-07-01), Ding et al.
patent: 6674593 (2004-01-01), Jolly et al.
patent: 6714376 (2004-03-01), Brunnett et al.
patent: 6937420 (2005-08-01), McNab et al.
patent: 6943978 (2005-09-01), Lee
patent: 02297780 (1990-12-01), None

Affiliated with

Also associated with

Rating

Methods and apparatuses for writing spiral servo patterns... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatuses for writing spiral servo patterns..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatuses for writing spiral servo patterns... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3695922