Magnetic disk drive and method for controlling mic

专利名称：Magnetic disk drive and method for

controlling microactuator in magnetic diskdrive

发明人：Toshitaka Matsunaga,Hideo Sado,Koichi

Aikawa,Tetsuya Tabuchi

申请号：US13290459申请日：20111107公开号：US08542458B2公开日：20130924

专利附图：

摘要：According to one embodiment, a magnetic disk drive includes a disk, a first

microactuator, a second microactuator and a servo controller. The disk comprises a firstsurface and a second surface. The first and second microactuators allow first and secondheads associated with the first and second surfaces to make micromotion based on firstand second operation amounts, respectively. The servo controller provides a thirdoperation amount to the first microactuator as the first operation amount and providesan operation amount obtained by inverting a polarity of a frequency component with aparticular frequency contained in the third operation amount, to the secondmicroactuator as the second operation amount, if the third operation amount isgenerated as an operation amount to be provided to the first microactuator in aparticular mode in which the first surface is used as a tracking surface.

申请人：Toshitaka Matsunaga,Hideo Sado,Koichi Aikawa,Tetsuya Tabuchi

地址：Akishima JP,Ome JP,Kawasaki JP,Tokyo JP

国籍：JP,JP,JP,JP

代理机构：Knobbe, Martens, Olson & Bear LLP

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