发明名称 OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS
摘要 PROBLEM TO BE SOLVED: To prevent stop of a recording operation caused during passing of a defective part and after passing through the defective part. SOLUTION: The optical information recording and reproducing apparatus of this invention is provided with a defect detection section and a switch section, and the switch section interrupts input of an abnormal jump detection signal to a recording and reproducing signal switching circuit for a time while a light spot detects a defective part and for a prescribed time after passing through the defective part. This prevents stop of recording operation due to wrong detection of an abnormal jump caused during passing of a defective part and after passing through the defective part so as to prevent the operation rate of the recording and reproducing apparatus from being deteriorated. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003272161(A) 申请公布日期 2003.09.26
申请号 JP20020074745 申请日期 2002.03.18
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 AKAGI NORITAKA;OSAKI TAKEO
分类号 G11B20/10;G11B7/004;G11B7/0045;G11B7/09;(IPC1-7):G11B7/004 主分类号 G11B20/10
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