Invention Grant
US07830631B2 Controlling an overshoot amplitude level based on a recording data pattern in a magnetic disk drive
有权
基于磁盘驱动器中的记录数据模式来控制过冲幅度电平
- Patent Title: Controlling an overshoot amplitude level based on a recording data pattern in a magnetic disk drive
- Patent Title (中): 基于磁盘驱动器中的记录数据模式来控制过冲幅度电平
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Application No.: US11890001Application Date: 2007-08-03
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Publication No.: US07830631B2Publication Date: 2010-11-09
- Inventor: Takeshi Nakagawa , Yasutaka Nishida , Ikuya Tagawa
- Applicant: Takeshi Nakagawa , Yasutaka Nishida , Ikuya Tagawa
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Priority: JP2006-213150 20060804
- Main IPC: G11B5/09
- IPC: G11B5/09
Abstract:
Embodiments of the present invention reduce lowering of a recording current and a recording magnetic field that might occur upon execution of write pre-compensation for compensating the NLTS according to a perpendicular magnetic recording method. According to one embodiment, the recording current overshoot is increased for recording a high NLTS recording data pattern. The read signal quality is improved, thereby a highly reliable magnetic disk can be provided.
Public/Granted literature
- US20080043358A1 Magnetic disk drive Public/Granted day:2008-02-21
Information query
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