Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-06-14
2005-06-14
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
06906887
ABSTRACT:
A servo control method controlling the position of a magnetic head in order to record/reproduce a data on/from a magnetic tape having a number of servo tracks, is performed along the following manner. First, a servo signal is written to each servo track of the magnetic tape. Next, a position in the with direction of the magnetic head is adjusted based on the servo signal written on the magnetic tape when performing the record/reproduce of a data on/from the magnetic tape. Next, the servo signal written on each of two servo tracks is read simultaneously. Here, the two servo tracks are selected among a plurality of servo tracks provided in the magnetic tape. Finally, the position in the width direction of the magnetic head is determined based on two servo signals, which are written on one servo track and another servo track of the above selected two servo tracks, respectively.
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Hudspeth David
Tzeng Fred F.
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