Method and apparatus for initializing operation of a disk drive

Details Method and apparatus for initializing operation of a disk drive Method and apparatus for initializing operation of a disk drive

2008-12-22

2011-10-25

Benson, Walter (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S286000, C318S271000, C318S276000, C318S277000, C318S445000

Reexamination Certificate

active

08044616

ABSTRACT:
A system for controlling a disk in a disk drive includes a motor control circuit and a first circuit that retrieves firmware speed control instructions from non-volatile memory. During retrieval of the firmware speed control instructions, at least one of the motor control circuit determines a position of the disk, one of the first circuit and the motor control circuit spins up the disk and the motor control circuit ramps up a speed of the disk. The first circuit performs speed control of the disk based on the firmware speed control instructions.

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