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1. 发明公开

EP1956593A1 OPTICAL DISC DEVICE 有权
标题翻译：光盘装置
公开(公告)号：EP1956593A1
公开(公告)日：2008-08-13
申请号：EP06833016.6
申请日：2006-11-21
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： MINAMINO, Junichi c/o Matsushita Electric Industrial Co.,Ltd. , WATANABE, Katsuya c/o Matsushita Electric Industrial Co.,Ltd. , YOSHIKAWA, Akira c/o Matsushita Electric Industrial Co.,Ltd.
IPC分类号： G11B7/0045 , G11B7/004 , G11B7/09
CPC分类号： G11B19/125 , G11B7/0045 , G11B7/0946 , G11B7/0948 , G11B19/045 , G11B2007/0006
摘要： An optical disc drive according to the present invention can write data on both a write-once disc and a rewritable disc. The drive includes: a disc recognizing section 110 for recognizing the type of a given optical disc as a write-once disc or a rewritable disc; and track skipping detection signal generating section, which outputs track skipping detection signal when a first condition on tracking error is satisfied if the given optical disc, on which data is being written, has turned out to be a write-once disc. On the other hand, if the given optical disc has turned out to be a rewritable disc, the track skipping detection signal generating section outputs track skipping detection signal when a second condition on tracking error, which is different from the first condition, is satisfied. A control section stops writing the data in response to the track skipping detection signal while the data is being written.
摘要翻译：根据本发明的光盘驱动器可以在一次写入盘和可重写盘两者上写入数据。该驱动器包括：盘识别部分110，用于将给定光盘的类型识别为一次写入盘或可重写盘; 以及当正在写入数据的给定光盘变为一次写入盘时，当满足跟踪错误的第一条件时输出跟踪跳过检测信号的跟踪跳过检测信号产生部分。另一方面，如果给定的光盘已经变成可重写盘，则当不满足第一条件的跟踪误差的第二条件满足时，跳过检测信号产生部分输出跳过检测信号。当数据被写入时，控制部分响应于跳轨检测信号停止写入数据。

2. 发明公开

EP1926095A1 OPTICAL DISC DEVICE AND CONTROL CIRCUIT FOR OPTICAL DISC DEVICE 有权
标题翻译： OPTISCHEDATENTRÄGEREINRICHTUNGUND STECHERSCHALTUNGFÜREINE OPTISCHEDATENTRÄGEREINRICHTUNG
公开(公告)号：EP1926095A1
公开(公告)日：2008-05-28
申请号：EP06796734.9
申请日：2006-08-24
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： WATANABE, Katsuya c/o Matsushita Electric Industrial Co.,Ltd. , AI, Takaharu c/o Matsushita Electric Industrial Co.,Ltd.
IPC分类号： G11B7/085 , G11B7/005 , G11B7/007
CPC分类号： G11B7/08505 , G11B7/0948 , G11B2007/0013
摘要： To prevent the focal point of a light beam from entering an unrecorded area, where no data has been written yet, when data is being read continuously from multiple storage layers.
An optical disc drive can read data from an optical disc with at least first and second storage layers. The drive includes: a drive mechanism for rotating the disc; an optical pickup, which irradiates the disc in the drive mechanism with converged light and generates a read signal based on the light reflected from the disc; and a control section for controlling operations of the drive mechanism and the pickup, thereby shifting the focal point of the light. In reading data from the first and second layers continuously, the control section shifts the focal point in a first radial direction while data is read from the first layer and then moves the focal point to a location on the second layer before data starts to be read from the second layer. That location has been shifted from its previous one by a predetermined displacement in a second radial direction that is opposite to the first radial direction.
摘要翻译：为了防止光束的焦点进入未记录数据的未记录区域，当从多个存储层连续读取数据时。光盘驱动器可以利用至少第一和第二存储层从光盘读取数据。驱动器包括：用于旋转盘的驱动机构; 光拾取器，其以会聚的光照射驱动机构中的盘，并且基于从盘反射的光产生读取信号; 以及控制部分，用于控制驱动机构和拾取器的操作，从而移动光的焦点。在从第一层和第二层连续读取数据时，控制部分在第一半径方向移动焦点，同时从第一层读取数据，然后在数据开始读取之前将焦点移动到第二层上的位置从第二层。该位置已经从与之前的位置在与第一径向方向相反的第二径向方向上移位预定位移。

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