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1.发明授权Optical medium judging method for avoiding the collision of an objective lens with a disk 有权用于避免物镜与盘碰撞的光学介质判断方法公开(公告)号：US07345266B2
公开(公告)日：2008-03-18
申请号：US10756281
申请日：2004-01-14
Applicant: Feng Fu Lin , Kuo Chang Lin
Inventor： Feng Fu Lin , Kuo Chang Lin
CPC classification number: G11B7/0956
Abstract: The present invention relates to an optical medium judging method for avoiding the collision of an objective lens with a disk or the failure to judge a warped disk when the optical disk drive judging the disk. This method will move the objective lens so as to obtain the data of the laser beam reflection amount of the focusing beam on the plastic layer of the optical disk. By using the reflection amount, the driving circuit will output a rising direct current voltage of a voltage difference to drive an actuator so as to move the objective lens to a proper position capable of judging the disk without colliding with the disk.
Abstract translation: 本发明涉及一种用于避免物镜与盘的碰撞的光学介质判断方法，或者在判断光盘的光盘驱动器时无法判断翘曲盘。 该方法将移动物镜以获得聚焦光束在光盘的塑料层上的激光束反射量的数据。 通过使用反射量，驱动电路将输出电压差的升高的直流电压来驱动致动器，以将物镜移动到能够判断盘而不与盘碰撞的适当位置。
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公开(公告)号：US20050045800A1
公开(公告)日：2005-03-03
申请号：US10756281
申请日：2004-01-14
Applicant: Feng Fu Lin , Kuo Chang Lin
Inventor： Feng Fu Lin , Kuo Chang Lin
CPC classification number: G11B7/0956
Abstract: The present invention relates to an optical medium judging method for avoiding the collision of an objective lens with a disk or the failure to judge a warped disk when the optical disk drive judging the disk. This method will move the objective lens so as to obtain the data of the laser beam reflection amount of the focusing beam on the plastic layer of the optical disk. By using the reflection amount, the driving circuit will output a rising direct current voltage of a voltage difference to drive an actuator so as to move the objective lens to a proper position capable of judging the disk without colliding with the disk.
Abstract translation: 本发明涉及一种用于避免物镜与盘的碰撞的光学介质判断方法，或者在判断光盘的光盘驱动器时无法判断翘曲盘。 该方法将移动物镜以获得聚焦光束在光盘的塑料层上的激光束反射量的数据。 通过使用反射量，驱动电路将输出电压差的升高的直流电压来驱动致动器，以将物镜移动到能够判断盘而不与盘碰撞的适当位置。
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