Control method to reduce settle TMR in hard disk drives

Details Control method to reduce settle TMR in hard disk drives Control method to reduce settle TMR in hard disk drives

2008-07-01

2008-07-01

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07394614

ABSTRACT:
A hard disk drive with a circuit that provides a control signal to a voice coil motor to move a head across a disk of a drive. The circuit includes a state estimator that provides a plurality of state estimates and a disturbance estimator that provides a disturbance estimate that is combined with the state estimates to define the control signal. The disturbance estimator compensates for flex cable disturbances, particularly during a settle mode of a seek routine.

REFERENCES:
patent: 6310742 (2001-10-01), Nazarian et al.
patent: 6452735 (2002-09-01), Egan et al.
patent: 6545836 (2003-04-01), Ioannou et al.
patent: 6594103 (2003-07-01), Despain et al.
patent: 6614615 (2003-09-01), Ju et al.
patent: 6754019 (2004-06-01), Tokizono et al.
patent: 6937428 (2005-08-01), Ho et al.
patent: 6999909 (2006-02-01), Subrahmanyan
patent: 7177113 (2007-02-01), Semba et al.
patent: 7203028 (2007-04-01), Chung et al.
patent: 7292403 (2007-11-01), Baek et al.
patent: 2006/0082922 (2006-04-01), Shih
patent: 2006/0291087 (2006-12-01), Suh et al.
patent: 2007/0156396 (2007-07-01), Ehrlich
patent: 2007/0183076 (2007-08-01), Baugh et al.

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