发明申请
- 专利标题： MAGNETIC RECORDING DEVICE, HEAD EVALUATION DEVICE, AND WRITE-POLE-ERASING EVALUATION METHOD
- 专利标题（中）： 磁记录装置，头评估装置和写消除评估方法
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申请号： US12788185申请日： 2010-05-26
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公开(公告)号： US20100302671A1公开(公告)日： 2010-12-02
- 发明人: Hiroaki Ueno , Masahiro Takagi , Takahisa Ueno , Hiroshi Isokawa
- 申请人： Hiroaki Ueno , Masahiro Takagi , Takahisa Ueno , Hiroshi Isokawa
- 申请人地址： JP Tokyo
- 专利权人： TOSHIBA STORAGE DEVICE CORPORATION
- 当前专利权人： TOSHIBA STORAGE DEVICE CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-126956 20090526
- 主分类号： G11B5/02
- IPC分类号： G11B5/02
摘要：
According to one embodiment, a magnetic recording device includes a write controller to control such that writing first information having a same polarity throughout the first information in a predetermined region including a plurality of tracks in a recording medium, writing second information in a target track located within or close to the predetermined region, and writing third information having, at an end of the writing, a polarity opposite to the polarity of the first information in a region of the target track in which the second information is not written, are performed; a read controller to control such that the second information is read after each of writing of the second information and writing of the third information; and a determiner to determine occurrence of pole erasing based on each second information read under the control by the read controller.