发明名称 |
VIBRATION DETECTING CIRCUIT |
摘要 |
PROBLEM TO BE SOLVED: To provide a disk device capable of being improved in vibration resistance by changing a tracking error signal to a focus error signal depending on the circumstances to detect vibrations. SOLUTION: The vibration detecting circuit is provided with a selector circuit 3, and is configured to detect vibrations by using the focus error signal when the tracking error signal is disturbed and the reliability of the extracted vibration component is low, and thus, the disk device capable of preventing an erroneous detection of vibrations and improving vibration resistance performance can be obtained. COPYRIGHT: (C)2003,JPO
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申请公布号 |
JP2003263757(A) |
申请公布日期 |
2003.09.19 |
申请号 |
JP20020062965 |
申请日期 |
2002.03.08 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
KAMATA TETSUYA;NAKADA YASUO |
分类号 |
G11B7/085;G11B7/09;(IPC1-7):G11B7/09 |
主分类号 |
G11B7/085 |
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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