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公开(公告)号：EP1403866B1
公开(公告)日：2005-12-21
申请号：EP03021697.2
申请日：2003-09-29
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2.发明公开Optical disc drive and brake control method thereof 有权Optisches Plattenlaufwerk und Verfahren der Steuerung des Bremsvorgangesdafür
公开(公告)号：EP1403866A2
公开(公告)日：2004-03-31
申请号：EP03021697.2
申请日：2003-09-29
发明人： Aso, Yoshiaki, c/o Mitsumi Electric Co., Ltd. , Tateshima, Takashi, Mitsumi Electric Co., Ltd. , Goto, Tatsuya, c/o Mitsumi Electric Co., Ltd.
IPC分类号： G11B19/22
摘要： An optical disc drive 1 of the present invention includes a spindle motor 11 for rotating the optical disc 2, a spindle driver for driving the spindle motor 11 equipped with rotation number measuring means 232 for measuring the rotation number of the spindle motor 11, brake means for braking the spindle motor 11 to reduce the rotation number thereof, which includes at least three types of brake modes, and selecting means for selecting one of the at least three types of brake modes in response to the rotation number measured by the rotation number measuring means 232 when the rotation number of the spindle motor 11 is to be reduced. The optical disc drive 1 may further includes judging means for judging whether the rotation number of spindle motor 11 measured by the rotation number measuring means 232 reaches a predetermined target rotation number when the rotation of the optical disc 2 is to be stopped by the spindle motor 11. In this case, the application of the braking means is completed when the judging means judges that the rotation number of the spindle motor 11 reaches the predetermined target rotation number.
摘要翻译： 本发明的光盘驱动器1包括用于旋转光盘2的主轴电动机11，用于驱动主轴电动机11的主轴驱动器，主轴电机11配备有用于测量主轴电动机11的转数的转数测量装置232，制动装置 用于制动主轴电动机11以减少包括至少三种类型的制动模式的转数，以及选择装置，用于响应于通过旋转数量测量测量的旋转数来选择至少三种类型的制动模式中的一种 当主轴电动机11的转数减小时的装置232。 光盘驱动器1还可以包括判断装置，用于当通过主轴电机停止光盘2的旋转时，判断由转数测量装置232测量的主轴电机11的转数是否达到预定目标转数 在这种情况下，当判断装置判断主轴电动机11的转数达到预定目标转数时，完成制动装置的应用。
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