Invention Grant
US07333288B2 Method and apparatus for single written-in Repeatable Run-Out correction function used in multi-stage actuation control of hard disk drive 失效
用于硬盘驱动器的多级驱动控制的单次写入可重复运行校正功能的方法和装置

Method and apparatus for single written-in Repeatable Run-Out correction function used in multi-stage actuation control of hard disk drive
Abstract:
RRO corrector function is formulated to partition the contribution of micro-actuator control from the other voice coil assembly contributions. Single stage actuation is supported by zeroing the micro-actuator control queue, otherwise multi-stage actuation is supported. The multi-stage actuation may include dual stage actuation and in some embodiments triple stage actuation. Triple stage further partitions RRO corrector function for the contribution of the second micro-actuator. Method of initializing an assembled hard disk drive creates hard disk drive as product, using the written-in parameter list for track on the disk surface to recreate the RRO corrector as RRO corrector filter using queues updated by NRRO corrector.
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