Method for write track placement correction

Details Method for write track placement correction Method for write track placement correction

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

C360S077120, C360S031000

Reexamination Certificate

active

06906888

ABSTRACT:
A method for correcting data track placement in a magnetic tape drive is provided. The invention comprises writing at least one data track on a magnetic tape, wherein the data track is written in a location determined by tracking a servo track on the tape. The tape drive reads the data track(s) at a plurality of offset positions, wherein each offset position is determined by deviating the servo track a specified distance from a servo reader. An optimal offset position is then determined based on collected read error data versus offset position data. During subsequent write operations, tapes are offset according to the optimal offset position.

REFERENCES:
patent: 6430008 (2002-08-01), Trabert et al.
patent: 6462899 (2002-10-01), Chliwnyj et al.
patent: 6768606 (2004-07-01), Helms
patent: 2002/0163752 (2002-11-01), Peterson

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