Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1997-05-15
2000-01-11
Tran, Thang V.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7702, G11B 5596
Patent
active
060142839
ABSTRACT:
A magnetic storage disk drive having a servo burst pattern which asymmetrically increases the linear region in which a read head may be micro-jogged from a burst pair center line to align the read head with a data track. The innovative servo pattern comprises a first pair of servo bursts that define a first burst pair centerline for writing a particular data track to a data track side of the first centerline, and a second pair of servo bursts collectively define a second burst pair centerline that is positioned to the data track side of the first burst pair centerline and is sufficiently close to the first burst pair center line so that the read head "sees" the second pair of servo bursts before "losing" the first pair of servo bursts when micro-jogged to the data track side for reading. The second burst pair centerline should be no farther from the first burst pair centerline than the linear read width of the read head. The preferred servo bursts span a full track pitch are arranged in a uniformly repeating pattern of A/B and C/D burst pairs. The first burst pair centerline may be defined by the A/B pairs in one annular disk region and by the C/D burst pairs in another annular disk region in order to asymmetrically expand the linear region in the direction needed for micro-jogging the read head in different directions within the respective annular regions.
REFERENCES:
patent: 4048660 (1977-09-01), Demmison et al.
patent: 4101942 (1978-07-01), Jacques
patent: 4157577 (1979-06-01), Porter, Jr. et al.
patent: 4238809 (1980-12-01), Fujiki et al.
patent: 4354210 (1982-10-01), Droux
patent: 4380033 (1983-04-01), Bacrania
patent: 4396960 (1983-08-01), Matia et al.
patent: 4454549 (1984-06-01), Pennington
patent: 4488187 (1984-12-01), Alaimo
patent: 4549232 (1985-10-01), Axmear et al.
patent: 4598327 (1986-07-01), Jen et al.
patent: 4613915 (1986-09-01), Crouse et al.
patent: 4833551 (1989-05-01), Song
patent: 4835632 (1989-05-01), Shih et al.
patent: 4924334 (1990-05-01), Diepers et al.
patent: 5041926 (1991-08-01), Ockerse et al.
patent: 5072318 (1991-12-01), Yu
patent: 5095393 (1992-03-01), Janz
patent: 5138511 (1992-08-01), Hoshimi et al.
patent: 5164866 (1992-11-01), Sano et al.
patent: 5235478 (1993-08-01), Hoshimi et al.
patent: 5257149 (1993-10-01), Meyer
patent: 5327408 (1994-07-01), Belser
patent: 5369535 (1994-11-01), Hetzler
patent: 5381281 (1995-01-01), Shrinkle et al.
patent: 5400201 (1995-03-01), Pederson
patent: 5418670 (1995-05-01), McClure et al.
patent: 5500776 (1996-03-01), Smith
patent: 5521773 (1996-05-01), Suzuki et al.
patent: 5523902 (1996-06-01), Pederson
patent: 5526202 (1996-06-01), Blageila et al.
patent: 5587850 (1996-12-01), Ten-that
patent: 5786957 (1998-07-01), Inoue et al.
Codilian Raffi
Nazarian Ara W.
Nguyen David Dung Tien
Shara Milad G.
Tran Thang V.
Western Digital Corporation
Young Leo J.
LandOfFree
Non-quadrature servo burst pattern for micro-jogging a magnetore does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-quadrature servo burst pattern for micro-jogging a magnetore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-quadrature servo burst pattern for micro-jogging a magnetore will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1466975