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公开(公告)号：EP0594128A2
公开(公告)日：1994-04-27
申请号：EP93116881.9
申请日：1993-10-19
IPC分类号： G11B17/028
CPC分类号： G11B17/0282
摘要： A disk holding device contains a turn table for holding a disk having a disk center hole in the center thereof on the turn table; a disk mount member disposed on the center portion of the turn table and fitted with the center hole of the disk; an operation member mounted to freely move in a disk loading and unloading direction; an engagement member disposed to freely move in the radial direction of the disk mount member, the engagement member being brought into contact with the disk center hole when the disk is fitted into the disk mount member; urging device for urging the engagement member in the radial direction of the disk mount member; and urging force releasing device for releasing an urging force applied to the engagement device by the urging device in accordance with the movement of the operation member.
摘要翻译： 盘保持装置包括用于将其中心具有盘中心孔的盘保持在转台上的转台; 盘安装部件，设置在转台的中心部分并装配有盘的中心孔; 操作构件安装成在盘装载和卸载方向上自由移动; 接合构件，其设置成沿着盘安装构件的径向方向自由移动，当盘装配到盘安装构件中时，接合构件与盘中心孔接触; 推动装置，用于沿所述盘安装构件的径向方向推压所述接合构件; 以及促动力释放装置，用于根据操作构件的移动释放由施力装置施加到接合装置的施力。
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公开(公告)号：EP0594128A3
公开(公告)日：1994-09-14
申请号：EP93116881.9
申请日：1993-10-19
IPC分类号： G11B17/028
CPC分类号： G11B17/0282
摘要： A disk holding device contains a turn table for holding a disk having a disk center hole in the center thereof on the turn table; a disk mount member disposed on the center portion of the turn table and fitted with the center hole of the disk; an operation member mounted to freely move in a disk loading and unloading direction; an engagement member disposed to freely move in the radial direction of the disk mount member, the engagement member being brought into contact with the disk center hole when the disk is fitted into the disk mount member; urging device for urging the engagement member in the radial direction of the disk mount member; and urging force releasing device for releasing an urging force applied to the engagement device by the urging device in accordance with the movement of the operation member.
摘要翻译： 盘保持装置包括用于将其中心具有盘中心孔的盘保持在转台上的转台; 盘安装部件，设置在转台的中心部分并装配有盘的中心孔; 操作构件安装成在盘装载和卸载方向上自由移动; 接合构件，其设置成沿着盘安装构件的径向方向自由移动，当盘装配到盘安装构件中时，接合构件与盘中心孔接触; 推动装置，用于沿所述盘安装构件的径向方向推压所述接合构件; 以及促动力释放装置，用于根据操作构件的移动释放由施力装置施加到接合装置的施力。
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公开(公告)号：EP0729147A2
公开(公告)日：1996-08-28
申请号：EP96102717.4
申请日：1996-02-23
申请人： ASAHI CORPORATION
发明人： Tsunoda, Norio , Yano, Hideo
CPC分类号： G11B19/20 , G11B7/08535 , G11B19/00 , G11B19/02 , G11B19/12
摘要： A light pickup 4 is adapted to receive reflected light from a disc 1 and to input a signal into a determination means 12 while moving in the radial direction of the disc 1. The determination means 12 not only determines the current position of the light pickup but also calculates the time required for the light pickup 4 to move until reaching the signal-recording inner circular end of the disc, on the basis of the signal from the light pickup. The determination means 12 determines that no disc is set when there is no reflected light from the disc. The determination means 12 determines the size of the diameter of the disc 1 on the basis of the current position of the light pickup 4. The disc player has a structure in which it is not necessary to provide a switch for detecting the signal-recording inner circular end of the disc, a sensor for detecting the size of the diameter of the disc and a sensor for detecting whether or not the disc is set.
摘要翻译： 光拾取器4适于接收来自盘1的反射光并且在沿着盘1的径向方向移动的同时将信号输入到确定装置12中。确定装置12不仅确定光拾取器的当前位置，而且 根据来自光拾取器的信号，还计算光拾取器4移动到达光盘的信号记录内圆端所需的时间。 当没有来自盘的反射光时，确定装置12确定没有设置盘。 确定装置12根据光拾取器4的当前位置确定光盘1的直径大小。光盘播放器具有这样的结构，其中不需要提供用于检测信号记录内部的开关 盘的圆形端部，用于检测盘直径大小的传感器以及用于检测盘是否被安装的传感器。
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