Invention Grant
- Patent Title: Magnetic recording media, method for servowriting on same, and hard disk drive
- Patent Title (中): 磁记录介质,伺服驱动方法和硬盘驱动器
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Application No.: US12079474Application Date: 2008-03-26
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Publication No.: US08482877B2Publication Date: 2013-07-09
- Inventor: Kyo Akagi , Hiroshi Ikekame
- Applicant: Kyo Akagi , Hiroshi Ikekame
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Priority: JP2007-080162 20070326
- Main IPC: G11B5/596
- IPC: G11B5/596

Abstract:
Embodiments of the present invention provide a servo write medium, method and device for writing servo information by self servo write on the servo region formed from a flat section of the discrete track medium. The recording or write device yields the same servo characteristics as magnetic servo writing, is superior to pre-patterned servo, and delivers a greater write storage capacity with an even higher recording density. According to one embodiment, a self servo write method is used to write servo information on a flat section formed on a patterned disk on which discrete tracks are formed. Timing detection patterns (grooves) required for controlling the timing along the periphery during self servo write are formed by pre-patterning on the disk, and RRO error signals used for positioning control along the radius are written in the servo information on a flat section of the disk.
Public/Granted literature
- US20080239906A1 Magnetic recording media, method for servowriting on same, and hard disk drive Public/Granted day:2008-10-02
Information query
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