发明授权
US07385777B2 Data storage device with heater, and control method therefor with timing control
失效
带加热器的数据存储装置及其具有定时控制的控制方法
- 专利标题: Data storage device with heater, and control method therefor with timing control
- 专利标题(中): 带加热器的数据存储装置及其具有定时控制的控制方法
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申请号: US11514871申请日: 2006-09-01
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公开(公告)号: US07385777B2公开(公告)日: 2008-06-10
- 发明人: Noriaki Satoh , Toyomi Ohsawa , Masaharu Kawamura , Hideki Ohzeki , Kazunari Tsuchimoto
- 申请人: Noriaki Satoh , Toyomi Ohsawa , Masaharu Kawamura , Hideki Ohzeki , Kazunari Tsuchimoto
- 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
- 代理机构: Townsend and Townsend and Crew LLP
- 代理商 Rambod Nader
- 优先权: JP2005-254818 20050902
- 主分类号: G11B21/02
- IPC分类号: G11B21/02 ; G11B5/596
摘要:
Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) keeps a heater in an OFF state for a period of time from the start of seek operation until the specified timing after a following mode starts. This prevents a head element from colliding with a magnetic disk, and also prevents flying properties from changing due to the deformation of the ABS. In the above specified timing, the heater is switched from OFF to ON. Specifically, for example, on completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON.