Servo writing with offset compensation for prewritten reference

Details Servo writing with offset compensation for prewritten reference Servo writing with offset compensation for prewritten reference

2007-04-26

2009-06-23

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S051000, C360S048000

Reexamination Certificate

active

07551387

ABSTRACT:
In accordance with various embodiments, a rotatable member is mounted to a spindle hub so that initial servo data previously provided to the rotatable member are eccentrically offset with respect to a rotational center of the spindle hub. Compensation vales are determined to characterize said offset, after which final servo data are provided to the rotatable member in relation to the initial servo data and the determined compensation values. The final servo data are nominally concentric with the rotational center of the spindle hub.

REFERENCES:
patent: 5668679 (1997-09-01), Swearingen et al.
patent: 5793559 (1998-08-01), Shepherd et al.
patent: 5978426 (1999-11-01), Glover et al.
patent: 6411461 (2002-06-01), Szita
patent: 6507450 (2003-01-01), Elliott
patent: 6519107 (2003-02-01), Ehrlich et al.
patent: 6735031 (2004-05-01), Chainer et al.
patent: 6775083 (2004-08-01), Hilla, Jr. et al.
patent: 6850385 (2005-02-01), Woods
patent: 6940678 (2005-09-01), Kuo et al.
patent: 6975491 (2005-12-01), Silverman
patent: 6977789 (2005-12-01), Cloke
patent: 6992848 (2006-01-01), Agarwal et al.
patent: 6992851 (2006-01-01), Cloke
patent: 7061709 (2006-06-01), Oki
patent: 7068459 (2006-06-01), Cloke et al.
patent: 7088533 (2006-08-01), Shepherd et al.
patent: 7113362 (2006-09-01), Lee et al.
patent: 7145744 (2006-12-01), Clawson et al.
patent: 7154697 (2006-12-01), Toffle et al.
patent: 7184234 (2007-02-01), Kim
patent: 7333280 (2008-02-01), Lifchits et al.
patent: 2004/0100719 (2004-05-01), Wilson et al.
patent: 2006/0209449 (2006-09-01), Ehrlich

Affiliated with

Also associated with

Rating

Servo writing with offset compensation for prewritten reference does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Servo writing with offset compensation for prewritten reference, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servo writing with offset compensation for prewritten reference will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4144996