发明名称 |
Method of writing pattern on magnetic disk and device therfor |
摘要 |
Embodiments of the present invention provide accurate pitch control of a servo write track. A Self-Servo-Write (SSW) according to an embodiment of the present invention determines a reference APC by reading a mark formed on the recording surface corresponding to the propagation head prior to starting the product servo pattern writing. The accurate size of the mark in the radial direction is known previously. The reference APC is for determining the track pitch, and by using the mark with the determined size, the product servo patterns can be written with a desired and accurate track pitch.
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申请公布号 |
US2008030890(A1) |
申请公布日期 |
2008.02.07 |
申请号 |
US20070880148 |
申请日期 |
2007.07.20 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
OHZEKI HIDEKI;ISHIBASHI KAZUYUKI;OHTA SHUNICHIROH;TAKAGI TATSUO |
分类号 |
G11B5/588 |
主分类号 |
G11B5/588 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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