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1. 发明授权

US07283444B2 Method and device for determining disk size and stopping a rotating disk without using frequency generator signals 有权
标题翻译：用于确定磁盘尺寸并停止旋转磁盘而不使用频率发生器信号的方法和装置
公开(公告)号：US07283444B2
公开(公告)日：2007-10-16
申请号：US10309189
申请日：2002-12-04
申请人： Dong Sik Kim , Tae Ki Shin , Myeong Su Jeong , Beom Jim Kim
发明人： Dong Sik Kim , Tae Ki Shin , Myeong Su Jeong , Beom Jim Kim
IPC分类号： G11B7/00
CPC分类号： G11B19/22 , G11B19/124
摘要： A method and device for determining the presence or absence of a disk and/or a disk size without using FG signals, are provided. The method includes placing a pickup at a first zone on the optical recording medium, the first zone located between an outer radius of a first recording medium type and an outer radius of a second recording medium type, where the outer radius of the second recording medium type is larger than the outer radius of the first recording medium type; detecting a reflected signal based on a returned beam from the first zone of the optical recording medium; and determining at least one of a size and an absence of the optical recording medium based on the detected reflected signal. Therefore, an FG sensor that is provided in a general disk device can be eliminated, thereby reducing the size and cost of a disk device.
摘要翻译：提供了一种用于在不使用FG信号的情况下确定盘和/或盘大小的存在或不存在的方法和装置。该方法包括将拾取器放置在光学记录介质上的第一区域处，第一区域位于第一记录介质类型的外半径和第二记录介质类型的外半径之间，其中第二记录介质的外半径类型大于第一记录介质类型的外半径; 基于来自光学记录介质的第一区域的返回光束检测反射信号; 以及基于检测到的反射信号来确定光学记录介质的尺寸和不存在中的至少一个。因此，可以消除设置在普通盘装置中的FG传感器，从而减小盘装置的尺寸和成本。

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