Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1986-03-20
1988-04-12
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360135, G11B 2110, G11B 5596, G11B 582
Patent
active
047378697
ABSTRACT:
A magnetic disk comprises a data area and a single index servo sector area embedded in the data area. The servo sector has three or more servo information pattern sections formed side by side in the direction of data tracks in the data area. The servo information pattern sections each have a plurality of servo information bit cells formed in a predetermined pattern in a direction perpendicular to the direction of data tracks. The servo information bit cells are used to produce a position signal for positioning a read/write head. A servo system for positioning the read/write head averages a plurality of position signals obtained from the servo information pattern sections and uses the averaged position signal for positioning the read/write head.
REFERENCES:
patent: Re32075 (1986-01-01), Harrison et al.
patent: 4001883 (1977-01-01), Strout et al.
patent: 4157577 (1979-06-01), Porter, Jr. et al.
patent: 4380034 (1983-04-01), Krake
patent: 4488187 (1984-12-01), Alaimo
patent: 4530020 (1985-07-01), Sutton
patent: 4589037 (1986-05-01), Jen et al.
Refined Closed-Loop Servo Enhances Low-Cost Disk Drive's Accuracy, Larry Sarisky, SyQuest Technology, Fremont, Calif., U.S. Electronic's/Mar. 10, 1983, pp. 139-142.
Moriya Kazunori
Nakamura Norio
Sugaya Toshihiro
Takagi Nobuyuki
Cardillo Raymond F.
Garland Steven R.
Kabushiki Kaisha Toshiba
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