Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2006-03-07
2006-03-07
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S076000
Reexamination Certificate
active
07009801
ABSTRACT:
A hard disk drive establishes a roll static attitude (RSA) of a slider during operation to be zero during normal operation and to be non-zero during load/unload from a ramp. Specifically, a RSA bias mechanism such as a piezoelectric layer can be coupled to the slider suspension to bend the flexure of the suspension during load/unload so that the slider inner edge is higher than the outer edge. Consequently, any slider-disk contact that occurs during load/unload will be at the outer edge of the slider, where data is not expected to be on the disk.
REFERENCES:
patent: 5021906 (1991-06-01), Chang et al.
patent: 5289325 (1994-02-01), Morehouse et al.
patent: 5313352 (1994-05-01), Chikazawa et al.
patent: 5315454 (1994-05-01), Fukakusa
patent: 5394281 (1995-02-01), Kajitani
patent: 6301080 (2001-10-01), Boutaghou
patent: 6362933 (2002-03-01), Sampietro et al.
patent: 6433966 (2002-08-01), Tang et al.
patent: 6437948 (2002-08-01), Sugimoto
patent: 6473259 (2002-10-01), Kuo et al.
patent: 6535355 (2003-03-01), Boutaghou et al.
patent: 6757124 (2004-06-01), Kelemen
patent: 6765765 (2004-07-01), Bement et al.
patent: 2001/0012182 (2001-08-01), Boutaghou et al.
patent: 2002/0093769 (2002-07-01), Suk et al.
patent: 0 242 597 (1987-03-01), None
patent: 57-210479 (1982-12-01), None
patent: 61194684 (1986-08-01), None
patent: 1166382 (1989-06-01), None
patent: 6076508 (1994-03-01), None
patent: 6267219 (1994-09-01), None
“Ramp loading sweet spots”. Yaeger and Hiller. Microsystem Technologies, vol. V.8, Pt No. 1, pp. 41-46, 2002.
“A Simplified 4-DOF Suspension Model for Dynamic Load/Unload Simulation and Its Application”. Zeng et al. Transactions of the ASME Journal of Tribology, vol. 122, pp. 274-279, Jan. 2000.
“Development of a New Submicron Flying Ramp-Loading Head with Emphasis on Slider Roll Control Capability”. Hashimoto et al. IEEE Transactions on Magnetics, vol. 28, No. 5 Pt. 2, pp. 2536-2538. Sep. 1992.
“Experimental Study of the Parameters That Determine Slider-Disk Contacts During Dynamic Loan-Unload”. Jeong et al. Transactions of the ASME Journal of Tribology, vol. 114, No. 3, pp. 507-514. Jul. 1992.
“Simulations Uncover the Details of Load/Unload”. Hua et al. Datatec Online, Edition 6, Section 5, pp. 101-104.
“Slider-Disk Contacts During the Loading Process in a Ramp-Load Magnetic Disk Drive”. Ta-Chung Fu et al. ASME Advances in Information Storage Systems, vol. 6, pp. 41-54. 1995.
Pit Remmelt
Suk Mike
Hitachi Global Storage Technologies - Netherlands B.V.
Olson Jason
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