发明名称 |
Method and apparatus for determining an optical disc type |
摘要 |
A method and apparatus for determining an optical disc type. A light beam is directed at an optical disc, and a focal point of the light beam moves in a focus direction with respect to the optical disc. An intensity of a reflection of the light beam from the optical disc is detected during the movement of the focal point of the light beam. A time interval between occurrences of a plurality of peaks of the detected intensity of the reflected light beam is detected, and the optical disc type is determined according to the detected time interval.
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申请公布号 |
US5710749(A) |
申请公布日期 |
1998.01.20 |
申请号 |
US19960613206 |
申请日期 |
1996.03.06 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
TSUKAI, YOSHIYUKI;SUZUKI, MASANORI |
分类号 |
G11B7/00;G11B7/005;G11B7/09;G11B19/06;G11B19/12;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
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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