Magnetic disk drive having dual-stage actuator and

专利名称：Magnetic disk drive having dual-stage

actuator and head position estimationmethod for the same

发明人：Takuji Matsuzawa,Susumu Yoshida申请号：US13556030申请日：20120723公开号：US08717703B2公开日：20140506

专利附图：

摘要：According to one embodiment, a magnetic disk drive includes a storage unit, ahead position detector and a head position estimator. The head position detector

detects a position of a first head if the first head is switched to a second head. The headposition estimator estimates a position of the second head based on the position of thefirst head, first and second voltages, polarities of first and second microactuators, gainsof the first and second microactuators, and a first inter-head offset. The first and secondvoltages are applied to the first and second microactuators, respectively. The first inter-head offset is stored in the storage unit.

申请人：Takuji Matsuzawa,Susumu Yoshida

地址：Kashiwa JP,Ome JP

国籍：JP,JP

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

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