发明申请
- 专利标题: Data storage apparatus and control method thereof with compensation
- 专利标题(中): 数据存储装置及其控制方法
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申请号: US11346813申请日: 2006-02-03
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公开(公告)号: US20060176003A1公开(公告)日: 2006-08-10
- 发明人: Mirei Hosono , Isao Yoneda
- 申请人: Mirei Hosono , Isao Yoneda
- 申请人地址: NL Amsterdam
- 专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址: NL Amsterdam
- 优先权: JP2005-034055 20050210
- 主分类号: G05D23/275
- IPC分类号: G05D23/275
摘要:
Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. A data storage apparatus in an embodiment of the invention comprises: a servo control section which, based on servo data stored on the storage medium, generates servo control data to control the position of the head; a sensor to detect vibration; a compensation data generating section which generates compensation data to compensate for the head's position error caused by vibration; a drive signal generating section which can generate a drive signal to move the head based on the servo control data and the compensation data; an arithmetic processing section which updates a rating value to evaluate the level of vibration given to the data storage apparatus; and a determination processing section which, according to the updated rating value, determines whether to perform the compensation using the compensation data; wherein the drive signal generating section compensates the servo control data using the compensation data in generating the drive signal.