Dynamic magnetic information storage or retrieval – Head mounting – For adjusting head position
Reexamination Certificate
2008-04-15
2008-04-15
Heinz, A. J. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head mounting
For adjusting head position
C360S292000
Reexamination Certificate
active
11041511
ABSTRACT:
In general, the invention provides a magnetic head device and linear tape drive that increase the resonant frequency and the range of a servo system. In particular, the invention provides a magnetic head device comprising a magnetic head chip with multiple magnetic head elements that is a structural part of the fine positioning system which allows the magnetic head elements follow the data tracks on the linear magnetic tape. Consequently, weight is reduced thereby increasing the resonant frequency and servo bandwidth. In another embodiment, the invention provides a magnetic head comprising bimodal actuators that are formed into an S shape and displaced by applying voltage where the polarization direction is opposite from one end to the other. In particular, the head chip may remain stable and may be driven dynamically thereby allowing the mechanical resonance of the bimodal actuator (including the head chip) to increase to 1 kHz or higher.
REFERENCES:
patent: 4392163 (1983-07-01), Rijckaert et al.
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.
patent: 6137659 (2000-10-01), Warmenhoven
U.S. Appl. No. 11/041,900, 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. 11/041,900, 7 pages.
Abe Takashi
Anderson James S.
Ito Yoshihiko
Koga Hirohisa
Langlois Denis
Heinz A. J.
Imation Corp.
Shumaker & Sieffert P.A.
Sony Corporation
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