Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2006-11-21
2006-11-21
Tzeng, Fred F. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
07139151
ABSTRACT:
Time-based servopositioning systems, methods, formats, and data recording media used in association with the same, employing bands of signals that differ from each other in the polarity of the servo signal, or the orientation of the servo signal, or the pattern width of the servo signal.
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Johnson Douglas W.
Yip Yung
Imation Corp.
Levinson Eric D.
Tzeng Fred F.
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