Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1997-07-21
1999-08-31
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 68, G11B 502
Patent
active
059461578
ABSTRACT:
The invention relates generally to rotating magnetic storage disk drive and, more particularly, to a method of seamlessly recording circumferentially overlapping servo bursts on a magnetic disk with successive passes of a write head that is guided by a servo track writer wherein the servo bursts are contained in at least two servo burst groups that each have at least one circumferential burst position which may contain a servo burst. The method comprises the steps of turning a write current ON while passing the write head over a current ramp region that does not contain servo data and is located in front of an "active" servo burst group that will be modified on this pass, modifying a servo burst in at least one circumferential position of the active servo burst group with the write current ON; turning the write current OFF while passing the write head over a current ramp region that does not contain servo data and is located in front of a "passive" servo burst group that will not be modified on this pass; and skipping over at least one circumferential burst position of the passive servo burst group with the write current OFF.
REFERENCES:
patent: 5241435 (1993-08-01), Saito et al.
patent: 5434725 (1995-07-01), Hirose et al.
patent: 5519546 (1996-05-01), Lewis
patent: 5867337 (1999-02-01), Shimomura
Codilian Raffi
Elliott Timothy
Nazarian Ara W.
Tanner Brian
Habermehl James L
Psitos Aristotelis M.
Shara, Esq. Miladd G.
Western Digital Corporation
Young, Esq. Leo J.
LandOfFree
Method of seamlessly recording circumferentially successive serv does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of seamlessly recording circumferentially successive serv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of seamlessly recording circumferentially successive serv will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2427803