Disk drive having first and second seek operating modes for...

Details Disk drive having first and second seek operating modes for... Disk drive having first and second seek operating modes for...

2005-11-22

2005-11-22

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

06967811

ABSTRACT:
A disk drive comprising a first seek operating mode to move the actuator over a seek distance D in a seek time T1, using a first seek profile for minimizing T1, wherein for a first repetitive series of seeks over distance D a servo control system would require a delay time TDbetween seeks to control temperature rise in a VCM. A second seek operating mode to move the actuator over the seek distance D in a second seek time T2using a second seek profile for limiting the temperature rise in the VCM, wherein for a second repetitive series of seeks over the seek distance D, a time average TAVGof the T2seek times is substantially less than T1+TD.

REFERENCES:
patent: 3735219 (1973-05-01), Kahn et al.
patent: 5128813 (1992-07-01), Lee
patent: 5557550 (1996-09-01), Vigil et al.
patent: 5594603 (1997-01-01), Mori et al.
patent: 2004/0264036 (2004-12-01), Ding et al.

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