Invention Grant
US09129629B1 Clock accuracy determining method and clock accuracy determining device
有权
时钟精度确定方法和时钟精度确定装置
- Patent Title: Clock accuracy determining method and clock accuracy determining device
- Patent Title (中): 时钟精度确定方法和时钟精度确定装置
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Application No.: US14280083Application Date: 2014-05-16
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Publication No.: US09129629B1Publication Date: 2015-09-08
- Inventor: Yutaka Yoshida
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Minato-ku, Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Minato-ku, Tokyo
- Agency: White & Case LLP
- Main IPC: G11B5/09
- IPC: G11B5/09 ; G11B5/596
Abstract:
According to one embodiment, when a timing error between a signal read back from a multi-spiral pattern pre-recorded on a magnetic disc and an SSW clock generated at a read/write channel is set as an SSW clock following error, SSW clock accuracy is determined based on results of comparison between SSW clock following errors read from two different points in each of spiral patterns constituting the multi-spiral pattern.
Public/Granted literature
- US20150243312A1 CLOCK ACCURACY DETERMINING METHOD AND CLOCK ACCURACY DETERMINING DEVICE Public/Granted day:2015-08-27
Information query
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