发明申请
- 专利标题: Servo Zone Detector
- 专利标题(中): 伺服区检测器
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申请号: US13490913申请日: 2012-06-07
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公开(公告)号: US20130329313A1公开(公告)日: 2013-12-12
- 发明人: Xun Zhang , Dahua Qin , Haitao Xia
- 申请人: Xun Zhang , Dahua Qin , Haitao Xia
- 专利权人: LSI Corporation
- 当前专利权人: LSI Corporation
- 主分类号: G11B27/24
- IPC分类号: G11B27/24 ; G11B5/09
摘要:
The present inventions are related to systems and methods for transferring information to and from a storage medium, and more particularly to systems and methods for positioning a sensor in relation to a storage medium. For example, an apparatus for determining a sensor position is disclosed that includes discrete Fourier transform calculators operable to process input data to yield a magnitude response of the input data at each of a number of candidate frequencies, a comparator operable to compare the magnitude responses to yield a winning candidate frequency, a servo controller operable to process at least one servo field in the input data to identify a position of a sensor based on the at least one servo field, and a servo frequency synthesizer operable to establish a frequency of operation in the servo controller based at least in part on the winning candidate frequency.
公开/授权文献
- US08625216B2 Servo zone detector 公开/授权日:2014-01-07
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