Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1985-05-03
1986-09-09
Stellar, George G.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
G11B 556
Patent
active
046112499
ABSTRACT:
In accordance with the invention, an extremely narrow control track is provided. By recording such control track cross-wise with respect to data recorded in an adjacent information track, a flux sensitive head may be employed to read the recorded control track flux so as to detect, with great sensitivity, polarized flux directions on either side of the centerline of the control track. Such detected polarized flux directions are transformed into corresponding drive signals for corrective head (and/or medium) positioning, thereby to cause the flux sensitive head to follow the centerline of the control track.
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Cody Robert F.
Eastman Kodak Company
Stellar George G.
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