Granted Patent B1

US 8,842,385 · App. 14/032,023 · Granted Sep 23, 2014

Abstract

Claims (21)

1. A disk drive comprising:

a disk comprising a plurality of tracks;

a head actuated over the disk; and

control circuitry operable to:

(a) seek the head to a target track and settle the head on the target track during a settle time;

(b) adapt a settle parameter over an adapting delay of the settle time, wherein the settle parameter is used to settle the head on the target track;

(c) decrease the adapting delay based on a speed that the settle parameter adapts; and

(d) repeat (a) through (c) at least once.

2. The disk drive as recited in claim 1 , wherein the control circuitry is further operable to:

access the target track after an access delay of the settle time; and

decrease the access delay based on the speed that the settle parameter adapts.

3. The disk drive as recited in claim 1 , wherein the control circuitry is further operable to initialize the adapting delay based on a peak in an adaptation profile of the settle parameter.

4. A method of operating a disk drive comprising a head actuated over a disk comprising a plurality of tracks, the method comprising:

(a) seeking the head to a target track and settle the head on the target track during a settle time;

(b) adapting a settle parameter over an adapting delay of the settle time, wherein the settle parameter is used to settle the head on the target track;

(c) decreasing the adapting delay based on a speed that the settle parameter adapts; and

(d) repeating (a) through (c) at least once.

5. The method as recited in claim 4 , further comprising:

accessing the target track after an access delay of the settle time; and

decreasing the access delay based on the speed that the settle parameter adapts.

6. The method as recited in claim 4 , further comprising initializing the adapting delay based on a peak in an adaptation profile of the settle parameter.

Assignments (8)