发明名称 |
Method for detecting eccentricity of an optical disc, and optical disc drive that performs the method |
摘要 |
An optical disc drive includes a spindle motor and a computer program. The spindle motor is adapted for rotating an optical disc. The computer program configures the optical disc drive to perform consecutive steps of a method for detecting eccentricity of the optical disc, including: a) while the optical disc drive operates under focused and track-locked conditions, controlling the spindle motor to rotate the optical disc at a specified rotation speed; b) measuring an eccentricity value of the optical disc being rotated by the spindle motor; and c) comparing the eccentricity value measured in step b) with a reference value to determine extent of eccentricity of the optical disc.
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申请公布号 |
US2005152246(A1) |
申请公布日期 |
2005.07.14 |
申请号 |
US20040754983 |
申请日期 |
2004.01.09 |
申请人 |
MEDIATEK INC. |
发明人 |
LI YUNG-CHIH;HO HSU-FENG;CHANG KUANG-JUNG |
分类号 |
G11B5/09;G11B7/095;(IPC1-7):G11B5/09 |
主分类号 |
G11B5/09 |
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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