发明名称 Optical disc recording/reproducing apparatus capable of rapidly determining unrecorded disc
摘要 An optical disc recording/reproducing apparatus according to the present invention determines the state of recording of an optical disc on the basis of the detection period of longest pits recorded on the optical disc wherein the period is changed with the acceleration of the rotation of the optical disc until a predetermined rotation speed is achieved. This enables rapidly determining whether the optical disc is unrecorded disc or a recorded disc.
申请公布号 US7463567(B2) 申请公布日期 2008.12.09
申请号 US20050237005 申请日期 2005.09.28
申请人 FUNAI ELECTRIC CO., LTD. 发明人 MATSUMOTO MASAKI
分类号 G11B7/00 主分类号 G11B7/00
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