Magnetic head device and linear tape drive including a twin...

Details Magnetic head device and linear tape drive including a twin... Magnetic head device and linear tape drive including a twin...

2008-03-04

2008-03-04

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

C360S291000

Reexamination Certificate

active

07339768

ABSTRACT:
In general, the invention provides a magnetic head device and linear tape drive that widen the high frequency side of the servo range. In particular, the invention provides a magnetic head device comprising a magnetic head chip with multiple magnetic elements arranged for recording or playback of multiple tracks and a fine positioning structure that uses a bimodal construction that may widen the high frequency side of the servo range by increasing the resonant frequency of the magnetic head chip including the tracking structure and lowering the Q value of the resonance point. In addition, the invention includes a damping structure suitable for the fine positioning structure that improves high speed response by widening the range in which the magnetic head device can be used for a servo. The magnetic head device may use a linear tape drive method.

REFERENCES:
patent: 4441128 (1984-04-01), Ohba et al.
patent: 5438469 (1995-08-01), Rudi
patent: 5500777 (1996-03-01), Hasegawa et al.
patent: 5883760 (1999-03-01), Yamada et al.
U.S. Appl. No. 11/041,511, filed Jan. 24, 2005, entitled “Magnetic Head Device and Linear Tape Drive”.
U.S. Appl. No. 11/051,371, filed Feb. 3, 2005, entitled “Piezoelectric Crystal Actuator and Techniques for Hysteresis Reduction”.
U.S. Appl. No. 11/062,224, filed Feb. 18, 2005, entitled “Techniques for Adjusting for Actuator Non-Linearities in A Data Storage System”.
Office Action dated May 10, 2007 for U.S. Appl. No. 11/041,511, 10 pages.

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