Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1991-02-13
1993-10-26
Sikes, William L.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7702, 360 7705, 360 7804, 360 7808, G11B 5596
Patent
active
052571491
ABSTRACT:
An offset address field in a magnetic disc storage system which uses a dual gap head and a rotary actuator. The dual gap head has two gaps, one for reading information and the other for writing information. Prior to a write operation, an address field which precedes a data field is read. The rotary actuator introduces a skew angle between the head and a data track. The skew angle causes the two gaps to travel along different radii of the storage disc. A read address field is aligned with the data field and a write address field is offset from the data field. Prior to writing data on the disc surface, the head is offset so that the write address field is read. Since the write address field is offset, a write operation can proceed without any further offset to the magnetic head.
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Ouelette Scott A.
Seagate Technology Inc.
Sikes William L.
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