Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1987-04-13
1988-11-01
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 78, 318634, 318685, G11B 5596, G11B 2110
Patent
active
047824042
ABSTRACT:
A control system for positioning a head in a magnetic disk device. The control system including a stepping motor, an index timing sensor for indicating the starting point of a data track, a rectifier for rectifying the servo position information, and a envelope detector for detecting the envelope of the rectified servo information. The servo position information is recorded in at least two data tracks and is formed in a staggered, offset pattern. The outside and inside tracks can serve as reference tracks for use in predicting the expected position of an intermediate track between the reference tracks by the use of linear interpolation.
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Cardillo Raymond F.
Garland Steven R.
Mitsubishi Denki & Kabushiki Kaisha
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