利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101473377A 用于确定光学数据载体的临界旋转速度、监控光学数据载体的状况以及生成参考信号的设备和方法 失效 - 权利终止

用于确定光学数据载体的临界旋转速度、监控光学数据载体的状况以及生成参考信号的设备和方法
摘要：
本发明涉及一种用于确定光学数据载体(1)的临界旋转速度的设备(9，109)和方法(501)(其中在该临界旋转速度下可能在所述设备(9，109)内发生所述光学数据载体(1)的临界偏转)、一种用于监控光学数据载体(1)的状况的仪器(209)和方法、一种用于从光学数据载体(1)读取数据和/或向其写入数据的仪器(309)和方法以及一种用于生成将被用来确定光学数据载体(9)的临界旋转速度的参考信号的设备(409)和方法。为了提供一种允许在仍然安全的高旋转速度下旋转所述数据载体(1)的用于确定临界旋转速度的设备(9，109)而不会危害所述设备(9，109)和/或所述数据载体(1)，提出一种用于确定光学数据载体(1)的临界旋转速度的设备(9，109)所述设备包括：用于旋转所述光学数据载体(1)的驱动器单元(11)，所述驱动器单元(11)被适配成根据覆盖预定的旋转速度范围的扫描来旋转所述光学数据载体(1)；用于生成测量信号的测量单元(15，115)，其中所述测量信号表示所述光学数据载体(1)的表面(17)与对应于所述扫描的参考位置(19)之间的距离；以及确定单元(21)，其用于通过根据所述测量信号的至少一个特性处理所述测量信号来确定所述光学数据载体(1)的所述临界旋转速度。
摘要（英）：

The invention relates to a device (9, 109) and a method (501) for determining a critical rotation speed of an optical data carrier (1) at which a critical deflection of said optical data carrier (1) may occur in said device (9, 109), an apparatus (209) and a method for monitoring a condition of an optical data carrier (1), an apparatus (309) and a method for reading data from and/or writing data to an optical data carrier (1), and a device (409) and a method for generating a reference signal to be used for determining a critical rotation speed of an optical data carrier (9). In order to provide a device (9, 109) for determining a critical rotation speed which allows a rotation of the data carrier (1) at a high, yet safe rotation speed without endangering the device (9, 109) and/or the data carrier (1), a device (9, 109) for determining a critical rotation speed of an optical data carrier (1) is proposed, said device (9, 109) comprising a drive unit (11) for rotating said optical data carrier (1), said drive unit (11) being adapted for rotating said optical data carrier (1) according to a sweep covering a predetermined range of rotation speeds, a measurement unit (15, 115) for generating a measurement signal indicative of a distance between a surface (17) of said optical data carrier (1) and a reference position (19) corresponding to said sweep, and a determination unit (21) for determining said critical rotation speed of said optical data carrier (1) by processing said measurement signal on the basis of at least one characteristic of said measurement signal.

公开/授权文献
0/0