发明名称 |
Method of detecting imbalanced disk in disk drive apparatus and disk drive apparatus |
摘要 |
A method of detecting an imbalanced disk in a disk drive apparatus detects an imbalanced disk at a relatively reasonable cost with high accuracy. In a disk drive apparatus configured to read a signal recorded in a disk by using an optical pickup, the method includes a step of determining whether or not the disk is an imbalanced disk based on a signal component of a tracking error signal, which is detected in accordance with push-pull method, depending on a status of the optical pickup.
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申请公布号 |
US2004037178(A1) |
申请公布日期 |
2004.02.26 |
申请号 |
US20030462575 |
申请日期 |
2003.06.16 |
申请人 |
MITSUMI ELECTRIC CO., LTD. |
发明人 |
NAGANO KENJI;KAGEYU SADAKAZU |
分类号 |
G11B7/004;G11B7/085;G11B7/09;G11B7/095;G11B19/20;(IPC1-7):G11B7/095 |
主分类号 |
G11B7/004 |
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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