Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1987-08-10
1989-01-03
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7802, 360109, G11B 558, G11B 552, G11B 2110
Patent
active
047961252
ABSTRACT:
In a magnetic tape recorder in which information is recorded on a plurality of longitudinal tracks running parallel to the length of the tape, a technique is disclosed for optimizing the positioning of a pair of magnetic heads for simultaneously reading information recorded on a pair of spaced tracks on the tape. The pair of spaced magnetic heads are mounted for simultaneous movement across the width of the tape in small uniform steps. The output of each magnetic head is monitored as the heads are moved laterally across two reference tracks at the beginning of the magnetic tape. An optimal position for both heads is determined as the mean position of the region of travel during which the amplitude of the output signal from both heads exceeds a predetermined reference value. This technique is also applicable to magnetic disc drives.
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Cardillo Raymond F.
Eastman Kodak Company
Garland Steven R.
Noval William F.
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