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发明名称
侦测径向倾斜之方法与装置
摘要
提供一种侦测一光碟片之径向倾斜之方法与装置。比较一八分圆光二极体之外侧收光单元所接收之信号a1,b1,c1与d1之加总信号a1+c1与b1+d1之相位以产生一外侧相位比较信号Do。比较该八分圆光二极之内侧收光单元所接收之信号a2,b2,c2与d2之加总信号a2+c2与b2+d2之相位以产生一内侧相位比较信号Di。根据该雷射光束横跨形成该碟片之一轨道时所产生之该外侧与内侧相位比较信号Do与Di,来侦测该径向倾斜。因此,可更准确地侦测该径向倾斜。
申请公布号
TW200401278
申请公布日期
2004.01.16
申请号
TW092114129
申请日期
2003.05.26
申请人
三星电子股份有限公司
发明人
马炳寅;金宽俊;朴仁植;崔炳浩
分类号
G11B7/095
主分类号
G11B7/095
代理机构
代理人
詹铭文
主权项
地址
韩国
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