Method and apparatus for estimating a position of a head in...

Details Method and apparatus for estimating a position of a head in... Method and apparatus for estimating a position of a head in...

2011-04-26

2011-04-26

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C702S191000

Reexamination Certificate

active

07933092

ABSTRACT:
In a method for providing an estimate of a head position for a disk drive, a readback signal is filtered. The readback signal includes a first position signal component corresponding to a first position pattern on a disk, and includes a second position signal component corresponding to a second position pattern on the disk. Filtering the readback signal includes using a filter determined based on statistical information regarding a noise component of the readback signal. An estimate of an amplitude of the first position signal component is generated based on the filtered readback signal, and an estimate of an amplitude of the second position signal component is generated based on the filtered readback signal. An estimate of a head position with respect to a track on the disk is generated based on the estimate of the amplitude of the first position signal component and the estimate of the amplitude of the second position signal component.

REFERENCES:
patent: 5249150 (1993-09-01), Gruber et al.
patent: 6025970 (2000-02-01), Cheung
patent: 6384994 (2002-05-01), Smith et al.
patent: 6426845 (2002-07-01), Sacks et al.
patent: 6754016 (2004-06-01), Messner et al.
patent: 6762895 (2004-07-01), Osafune
patent: 7158333 (2007-01-01), Sutardja et al.
patent: 7289284 (2007-10-01), Arai et al.
patent: 2003/0002199 (2003-01-01), Au et al.
patent: 2003/0026016 (2003-02-01), Heydari et al.
patent: 2005/0264922 (2005-12-01), Erden et al.
patent: 2007/0239403 (2007-10-01), Hornbostel

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