Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2006-10-11
2008-03-25
Nguyen, Hoa T. (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C369S078000
Reexamination Certificate
active
07349173
ABSTRACT:
A hard disk drive with a voice coil motor controlled by a circuit. The circuit provides a driving current to the voice coil motor to move a head of the drive in a seek routine. The seek routine includes a settle mode that has an initial state and a velocity versus head position eigenvector. The eigenvector is changed to coincide with on the initial state when the seek routine enters the settle mode. Changing the eigenvector to coincide with the initial state induces a head velocity and movement with minimal overshoot or undershoot during the settle mode.
REFERENCES:
patent: 5459624 (1995-10-01), Erickson et al.
patent: 5805374 (1998-09-01), Kisaka
patent: 5859743 (1999-01-01), Kisaka
patent: 6046878 (2000-04-01), Liu et al.
patent: 6166876 (2000-12-01), Liu
patent: 6690537 (2004-02-01), Kagami et al.
patent: 6917488 (2005-07-01), Ozawa et al.
patent: 7203028 (2007-04-01), Chung et al.
Habermehl James L
Irell & Manella LLP
Nguyen Hoa T.
Yorks Ben J.
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