Adaptive sector seeking method for reducing disk drive power con

Details Adaptive sector seeking method for reducing disk drive power con Adaptive sector seeking method for reducing disk drive power con

1997-08-28

2000-03-14

Ometz, David L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 70, 360 7806, G11B 2112, G11B 2110

Patent

active

060380969

ABSTRACT:
Method of reducing power consumption in a disk drive system by controlling movement time of a read/write head from a present track and present sector to a target track and target sector. The method includes the steps of determining a first variable indicative of a first time period in which to move the actuator head from the present track to the target track along a radial arc traced by the movement of the actuator head and determining a second variable indicative of a second time period measured from the present servo sector to when the target servo sector advances to the radial arc. The actuator head is moved at a first rate substantially equal to the first time period if the first variable and the second variable are equal. The actuator head is moved at a second, slower rate if the first variable and the second variable are not equal. Moving the actuator head at a slower rate reduces power consumption and increases battery life.

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