Adaptive settling control method and apparatus in track seek...

Details Adaptive settling control method and apparatus in track seek... Adaptive settling control method and apparatus in track seek...

2007-07-24

2007-07-24

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077060, C360S078060

Reexamination Certificate

active

11290418

ABSTRACT:
A settling control method and apparatus perform an improved settling control regardless of a seek distance when a disc drive track seek control operation is performed. An adaptive settling control method used in controlling the track seek mode of the disc drive includes: controlling a head to converge into a target position and a target velocity along with an eigen vector by transiting an initial state of the head motion onto an eigen vector line of a system at the time transiting from an acceleration/deceleration control mode of the track seek mode to a settling control mode.

REFERENCES:
patent: 4697127 (1987-09-01), Stich et al.
patent: 5459624 (1995-10-01), Erickson et al.
patent: 5561568 (1996-10-01), Kisaka
patent: 6046878 (2000-04-01), Liu et al.

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