Invention Grant
US08665549B2 Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system
有权
用于在磁数据记录系统的磁介质上用单极位创建脉冲串幅度伺服模式的方法
- Patent Title: Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system
- Patent Title (中): 用于在磁数据记录系统的磁介质上用单极位创建脉冲串幅度伺服模式的方法
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Application No.: US13249041Application Date: 2011-09-29
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Publication No.: US08665549B2Publication Date: 2014-03-04
- Inventor: Thomas R. Albrecht , Toshiki Hirano , Tetsuo Semba , Xiaotian Sun
- Applicant: Thomas R. Albrecht , Toshiki Hirano , Tetsuo Semba , Xiaotian Sun
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Main IPC: G11B21/02
- IPC: G11B21/02 ; G11B5/82
Abstract:
A magnetic data storage system having a magnetic disk having burst patterns for providing a position error signal (PES) wherein each magnetic burst pattern is offset from an adjacent burst pattern by ¼ track pitch. All of the magnetic bits of the burst patterns can be unipolar magnetized, and the bits of each burst pattern can be aligned with one another in radial and circumferential direction. The magnetic media can be a bit patterned media wherein the magnetic bits of the burst patterns are magnetically isolated portions separated by non-magnetic spaces or non-magnetic material.
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