发明授权
- 专利标题: Erase band compensated offset servo trimming
- 专利标题(中): 擦除波段补偿偏移伺服微调
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申请号: US11810188申请日: 2007-06-04
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公开(公告)号: US07535667B2公开(公告)日: 2009-05-19
- 发明人: Peng Luo , Keung Youn Cho , Hao Ping Wen , Shuyu Sun
- 申请人: Peng Luo , Keung Youn Cho , Hao Ping Wen , Shuyu Sun
- 申请人地址: KR Suwon
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon
- 代理机构: Irell & Manella LLP
- 代理商 Ben J. Yorks
- 主分类号: G11B21/02
- IPC分类号: G11B21/02
摘要:
A hard disk drive with a disk that has a servo field with an A servo burst and a B servo burst. The A servo burst has a trimmed erase band. The trimmed erase band can be created by offsetting the write head relative to a burst centerline to reduce the width of the erase band. For example, the write head can be moved toward a centerline of the A servo burst. The offset can be a function of write current and cylinder location of the disk. The offsets are selected so that the resultant burst profiles do not contain a flat minimum portion.
公开/授权文献
- US20080297938A1 Erase band compensated offset servo trimming 公开/授权日:2008-12-04