Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-09-13
2005-09-13
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
06943979
ABSTRACT:
An arrangement and method for compensating for the written-in tracking error for a linear tape drive filters out spatial error components of a position error signal (PES). The position information contained within A, B pairs of servo stripes, and within C, D pairs of stripes is preserved. The timing between the A and C bursts and the C and A bursts is filtered, such as by low pass filtering, to filter out the error that can be written-in by a servo writer. The timing signal for the A, B bursts and C, D bursts are divided by the filtered timing signals for the AC and CA timing signals, respectively. This ratio provides the filtered PES signal used by a head positioner to precisely position the head with respect to the tape.
REFERENCES:
patent: 6061199 (2000-05-01), Goker et al.
patent: 6437934 (2002-08-01), Goker
patent: 6700729 (2004-03-01), Beck et al.
Goker Turguy
Tan Sanwu
Certance LLC
Hudspeth David
Slavitt Mitchell
Thelen Reid & Priest LLP
LandOfFree
Method and apparatus for written-in tracking error... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for written-in tracking error..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for written-in tracking error... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393459