Invention Grant
US09076473B1 Data storage device detecting fly height instability of head during load operation based on microactuator response
有权
数据存储装置根据微型制动器响应，检测负载运行时头部的飞高不稳定性
- Patent Title: Data storage device detecting fly height instability of head during load operation based on microactuator response
- Patent Title (中): 数据存储装置根据微型制动器响应，检测负载运行时头部的飞高不稳定性
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Application No.: US14457425Application Date: 2014-08-12
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Publication No.: US09076473B1Publication Date: 2015-07-07
- Inventor: Yanning Liu , Xin Wang , Jianghong Ding , Dean V. Dang , Jong Hyun Lee , Duc T. Phan , Timothy A. Ferris
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B21/02
- IPC: G11B21/02 ; G11B27/36 ; G11B5/60 ; G11B5/54
Abstract:
A data storage device is disclosed comprising a first disk surface, a first head, and a first microactuator configured to actuate the first head over the first disk surface. The first microactuator is configured into a first sensor, and a first load operation is executed to load the first head over the first disk surface. A fly height instability of the first head is detected during the first load operation based on a first sensor signal generated by the first microactuator.
Information query
