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1. 发明授权

EP2458591B1 Method for positioning a focus beam spot with a multilayer optical disc 有权
标题翻译：具有多层光盘为聚焦束斑的定位方法
公开(公告)号：EP2458591B1
公开(公告)日：2014-04-23
申请号：EP12155414.1
申请日：2008-03-10
申请人： Hitachi Consumer Electronics Co. Ltd.
发明人： Ishikawa, Yoshinori , Miyamoto, Harukazu , Hirotsune, Akemi
IPC分类号： G11B7/24 , G11B7/085
CPC分类号： G11B7/08511 , G11B7/00736 , G11B7/24038

2. 发明公开

EP2330589A1 Optical disc apparatus and defocus correcting method 审中-公开
标题翻译： Optische Plattenvorrichtung und Verfahren zur Defokussierungskorrektur
公开(公告)号：EP2330589A1
公开(公告)日：2011-06-08
申请号：EP10161076.4
申请日：2010-04-26
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Ishikawa, Yoshinori , Jin, Gohshi
IPC分类号： G11B7/09
CPC分类号： G11B7/094 , G11B7/0908
摘要： An optical disc apparatus in which a bias of a focusing error signal is changed to a value according to a recording power at timing corresponding to a predetermined address position before starting the recording and a defocus of an opposite polarity is preliminarily caused so as to set off a defocus which occurs at the start of the recording. The defocus is calculated, rather than by executing a learning process.
摘要翻译：一种光盘装置，其中聚焦误差信号的偏置在开始记录之前根据与预定地址位置相对应的定时处的记录功率被改变为一个值，并且预先引起相反极性的散焦以使其脱离在记录开始时发生的散焦。计算散焦，而不是通过执行学习过程。

3. 发明公开

EP2458591A1 Method for positioning a focus beam spot with a multilayer optical disc 有权
标题翻译：具有多层光盘为聚焦束斑的定位方法
公开(公告)号：EP2458591A1
公开(公告)日：2012-05-30
申请号：EP12155414.1
申请日：2008-03-10
申请人： Hitachi Consumer Electronics Co. Ltd.
发明人： Ishikawa, Yoshinori , Miyamoto, Harukazu , Hirotsune, Akemi
IPC分类号： G11B7/24 , G11B7/085
CPC分类号： G11B7/08511 , G11B7/00736 , G11B7/24038
摘要： A focus beam spot positioning method for irradiation of a laser beam to a multilayer optical disc is disclosed, the disc comprising three or more recording layers, thereby recording/reproducing information, a structure in which reflectance of each of the recording layers is substantially constant, both a first recording layer in which information to be reproduced has been stored, and a second recording layer adjacent to the first recording layer, wherein an interlayer distance between the first recording layer and the second recording layer is larger than other interlayer distances. The method comprises the steps of traversing an objective lens in a direction of thickness of the multilayer optical disc; detecting a focus error signal in each of the layers of the multilayer optical disc; and positioning the focus beam spot to the first recording layer based on the focus error signal.
摘要翻译：对于激光束的多层光盘照射的聚焦束斑的定位方法被盘游离缺失，盘包括三个或更多个记录层上，从而记录/重放信息，在每个记录层中的哪反射率的结构基本上是恒定的，无论在哪个信息要被再现的第一记录层已经被存储，以及第二记录层邻近第一记录层，在worin第一记录层和第二记录层之间的层间距离比其他的层间距离大。该方法包括遍历在多层光盘的厚度方向上物镜的工序; 检测每个所述多层光盘的各层的聚焦误差信号; 和聚焦光束点定位到基于所述聚焦误差信号在第一记录层。

4. 发明公开

EP2293296A1 Focus jump method and optical disc apparatus 有权
标题翻译： Fokussprungverfahren und optische Plattenvorrichtung
公开(公告)号：EP2293296A1
公开(公告)日：2011-03-09
申请号：EP10160900.6
申请日：2010-04-23
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Ishikawa, Yoshinori
IPC分类号： G11B7/085
CPC分类号： G11B7/08505
摘要： An optical disc apparatus includes a multilayer optical disc (1, 201) having a reproduction-only recording layer (202) and a recording layer (203) of the recordable area, on the disc, to record and reproduce the disc by the same wavelength laser light, so that a seek operation is performed rapidly, and a generation method tracking error signal (TE) is switched over by using a DPD method and push-pull method in response to a target layer to which a focus jump is applied, for a time period during which a tracking servo loop is opened in association with a focus jump.
摘要翻译：一种光盘装置，包括：在光盘上具有再现专用记录层（202）和可记录区域的记录层（203）的多层光盘（1,201），以相同的波长记录和再现光盘激光，使得快速执行寻道操作，并且通过使用DPD方法和推挽方法来响应于应用了聚焦跳转的目标层来切换生成方法跟踪误差信号（TE），用于与聚焦跳跃相关联地打开跟踪伺服环路的时间段。

5. 发明公开

EP2290644A2 Optical disc, optical disc reproducing apparatus, optical disc apparatus, reproducing method and recording method 审中-公开
标题翻译：对于光盘，光盘装置，再现方法和记录方法的光盘再现装置
公开(公告)号：EP2290644A2
公开(公告)日：2011-03-02
申请号：EP10250828.0
申请日：2010-04-26
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Kataoka, Takeyoshi , Ishikawa, Yoshinori , Nagai, Yutaka , Akahoshi, Kenji , Yasukawa, Takakiyo
IPC分类号： G11B7/005 , G11B7/007 , G11B7/24
CPC分类号： G11B7/00736 , G11B7/0053 , G11B7/24038 , G11B2007/0006
摘要： Where a hybrid disc has different types of media, the light spot moves among recording layers of the different media, after loading the disc into an optical disc apparatus, there is a problem that information on a media type of each recording layer should be recorded in DI etc. of the optical disc (100). Detailed information on the hybrid disc is stored in DI, by changing a disc layer type identifier or a disc structure in DI such as BCA or PIC on the optical disc (100).
摘要翻译：其中的混合盘具有不同类型的媒体，记录介质的不同的层中，装载的光盘插入到光盘装置后之间的光点移动时，有没有在每个记录层的媒体类型信息shoulderstand记录中的问题光盘（100）的DI等。混合光盘的详细信息存储在DI，通过改变盘识别符或在DI盘结构：如在光盘（100）上或BCA PIC。

6. 发明授权

EP2293296B1 Focus jump method and optical disc apparatus 有权
标题翻译：聚焦跳跃方法和光盘装置
公开(公告)号：EP2293296B1
公开(公告)日：2012-05-23
申请号：EP10160900.6
申请日：2010-04-23
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Ishikawa, Yoshinori
IPC分类号： G11B7/085
CPC分类号： G11B7/08505

7. 发明公开

EP2290644A3 Optical disc, optical disc reproducing apparatus, optical disc apparatus, reproducing method and recording method 审中-公开
标题翻译：对于光盘，光盘装置，再现方法和记录方法的光盘再现装置
公开(公告)号：EP2290644A3
公开(公告)日：2011-03-30
申请号：EP10250828.0
申请日：2010-04-26
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Kataoka, Takeyoshi , Ishikawa, Yoshinori , Nagai, Yutaka , Akahoshi, Kenji , Yasukawa, Takakiyo
IPC分类号： G11B7/005 , G11B7/007 , G11B7/24
CPC分类号： G11B7/00736 , G11B7/0053 , G11B7/24038 , G11B2007/0006
摘要： Where a hybrid disc has different types of media, the light spot moves among recording layers of the different media, after loading the disc into an optical disc apparatus, there is a problem that information on a media type of each recording layer should be recorded in DI etc. of the optical disc (100). Detailed information on the hybrid disc is stored in DI, by changing a disc layer type identifier or a disc structure in DI such as BCA or PIC on the optical disc (100).

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