Method for predictive power management for operating a disk...

Details Method for predictive power management for operating a disk... Method for predictive power management for operating a disk...

2005-05-10

2005-05-10

Browne, Lynne H. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S320000

Reexamination Certificate

active

06892313

ABSTRACT:
The invention may be embodied in a method for operating a disk drive in a mobile device to optimize power usage. The mobile device may be a hand held computing device such as a personal digital assistant (PDA) or a mobile terminal such as a cellular telephone. Immediately after responding to a disk access command, the disk drive is in first operating mode that consumes a relatively high level of power and may transition to a second operating mode that consumes a relatively low level of power. A transition from the second operating mode to the first operating mode consumes a transition quantity of power. A predictive technique tracks a user's usage pattern and adapts an operating mode transition time based on the usage pattern.

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patent: 5682273 (1997-10-01), Hetzler
patent: 5774292 (1998-06-01), Georgiou et al.
patent: 5954820 (1999-09-01), Hetzler
patent: WO 0115161 (2001-03-01), None

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