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公开(公告)号：US08014254B2
公开(公告)日：2011-09-06
申请号：US11978596
申请日：2007-10-30
IPC分类号： G11B7/00
CPC分类号： G11B27/329 , G11B7/00736 , G11B7/0079 , G11B7/0945 , G11B7/1275 , G11B7/24038 , G11B19/122 , G11B20/1217 , G11B27/105 , G11B2007/0006 , G11B2007/0013 , G11B2220/235
摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.
摘要翻译： 在具有符合多个不同光盘标准的信息层的多层光盘中，由于每个信息层的类型不被记录在其他信息层中，所以在兼容的光盘装置的读写操作中，符合多个 光盘标准，每次被访问的信息层都改变时，必须读取信息层的类型，并选择一种生成适合于信息层类型的跟踪误差信号的方法，因此访问需要时间。 为了解决上述问题，在根据本发明的具有符合多个不同光盘标准的信息层的光学多层盘中，在信息层之一中的区域中记录关于其他信息层的信息 。 可以通过使用该信息来选择跟踪误差信号生成方法来减少访问其他信息层所需的时间。
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公开(公告)号：US07995451B2
公开(公告)日：2011-08-09
申请号：US11978594
申请日：2007-10-30
IPC分类号： G11B7/24
CPC分类号： G11B27/329 , G11B7/00736 , G11B7/0079 , G11B7/0945 , G11B7/1275 , G11B7/24038 , G11B19/122 , G11B20/1217 , G11B27/105 , G11B2007/0006 , G11B2007/0013 , G11B2220/235
摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.
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公开(公告)号：US07957238B2
公开(公告)日：2011-06-07
申请号：US10541628
申请日：2004-06-04
申请人： Tomo Kishigami , Nobuo Takeshita , Osamu Tsukahara
发明人： Tomo Kishigami , Nobuo Takeshita , Osamu Tsukahara
CPC分类号： G11B7/00456 , G11B7/00736
摘要： A write strategy for use in recording is determined from recommended write strategy parameters recorded on an optical disk (160) and the characteristics of the optical recording device used in recording; a recommended asymmetry value is determined from the difference between the numerical aperture NA1 of the objective lens, which is a recording condition of the recommended asymmetry value recorded on the optical disk (160) and the numerical aperture NA2 of the objective lens (150) of the optical recording device used in recording, and recording is carried out on the optical disk (160) according to the write strategy and asymmetry value thus determined. Optimal recording can be carried out even on an optical disk for which the optimal write strategy information has not been determined in advance, without the need to store write strategy information suitable for each and every optical disk.
摘要翻译： 用于记录的写入策略由记录在光盘（160）上的推荐写入策略参数和记录中使用的光学记录装置的特性来确定。 根据作为记录在光盘（160）上的推荐不对称值的记录条件的物镜的数值孔径NA1与物镜（150）的数值孔径NA2之间的差确定推荐的不对称值， 根据如此确定的写入策略和不对称值，在光盘（160）上进行用于记录和记录的光记录装置。 即使在没有预先确定最佳写入策略信息的光盘上也可以进行最佳记录，而不需要存储适合于每个光盘的写入策略信息。
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公开(公告)号：US20100284260A1
公开(公告)日：2010-11-11
申请号：US12744094
申请日：2008-09-01
申请人： Toshiya Matozaki , Nobuo Takeshita
发明人： Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/0932 , G11B7/0935 , G11B7/0956 , G11B7/1374 , G11B2007/0006
摘要： An objective lens driving device includes a lens holder (3) holding an objective lens (1, 2), a stationary part (5) that supports the lens holder (3) via wires (7a, 7b), an electromagnetic coil (11a-11d, 12a-12d) provided on the lens holder, and a magnet (4a, 4b) provided on the stationary part and magnetized in a multipolar manner so that different magnetic pole surfaces are arranged on a surface of the magnet facing the electromagnetic coil. The lens holder has a convex portion (16a-16d, 17a-17d) on a surface thereof facing the magnet. The convex portion has at least one groove (601-604, 701-704) portion extending parallel to a direction of magnetic flux lines of the magnet facing the convex portion, and at least a surface of the convex portion is formed of material having magnetic property.
摘要翻译： 一种物镜驱动装置，包括：保持物镜（1,2）的透镜保持架（3），经由导线（7a，7b）支撑透镜保持架（3）的静止部分（5）;电磁线圈 11d，12a-12d）和设置在固定部分上并以多极方式磁化的磁体（4a，4b），使得不同的磁极表面布置在面对电磁线圈的磁体的表面上。 透镜架在其面对磁体的表面上具有凸部（16a-16d，17a-17d）。 凸部具有至少一个平行于面向凸部的磁体的磁通线的方向延伸的凹槽（601-604,701-704），并且凸部的至少一个表面由具有磁性的材料形成 属性。
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95.发明授权Optical disc, optical disc device, optical disc recording device, and optical disc driving method 有权光盘，光盘装置，光盘记录装置和光盘驱动方法公开(公告)号：US07447130B2
公开(公告)日：2008-11-04
申请号：US10574510
申请日：2005-05-26
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/00736 , G11B7/0953 , G11B7/24038 , G11B2007/0013
摘要： An optical disc on which information can be recorded by recording light has a first recording layer (102) and a second recording layer (103) disposed behind the first recording layer as viewed by the recording light; the first recording layer and the second recording layer have respective power adjustment areas (P1, P2) that are used to adjust the power of the recording light to the optimal recording power at the time of recording of information on each recording layer; a prewrite area (PW) is provided in correspondence to the power adjustment area (P2) used for optimal power adjustment in the second recording layer and restricted areas (A1, A2) on both sides of that power adjustment area (P2). The restricted areas (A1, A2) allow for the diameter of the recording light beam and for lamination misalignment. This configuration enables stable test recording to be carried out in a short time on an optical disc having multiple recording layers.
摘要翻译： 通过记录光能够记录信息的光盘具有由记录光所观察的设置在第一记录层后面的第一记录层（102）和第二记录层（103） 第一记录层和第二记录层具有各自的功率调整区域（P 1，P 2），用于在记录每个记录层上的信息时将记录光的功率调节到最佳记录功率; 对应于用于第二记录层中的最佳功率调整的功率调整区域（P 2）和在该功率调整区域（P 2）的两侧的限制区域（A 1，A 2），提供预写区域（PW） ）。 限制区域（A 1，A 2）允许记录光束的直径和层压未对准。 该配置使得能够在具有多个记录层的光盘上在短时间内进行稳定的测试记录。
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公开(公告)号：US20080159086A1
公开(公告)日：2008-07-03
申请号：US11885145
申请日：2006-02-21
申请人： Nobuo Takeshita , Noboru Yashima , Masaharu Ogawa
发明人： Nobuo Takeshita , Noboru Yashima , Masaharu Ogawa
IPC分类号： G11B21/10
CPC分类号： G11B7/00736 , G11B7/24038 , G11B2007/0013
摘要： The present invention relates to optical disks and optical disk devices, and has an object to reduce access time and prevent malfunction. To attain the above object, in an optical disk (100), a management information area (130) is placed inside a user data area (140), namely, at the innermost circumference position of the optical disk (100), in an information layer (101) placed at the farthest position from the surface. A position information area (132) that stores position information indicating the position of each information layer in a thickness direction of the optical disk (100) is placed in the management information area (130).
摘要翻译： 本发明涉及光盘和光盘装置，其目的是减少访问时间并防止故障。 为了实现上述目的，在光盘（100）中，将管理信息区域（130）放置在用户数据区域（140）内，即位于光盘（100）的最内圆周位置处的信息中 层（101）位于离表面最远的位置。 将存储指示光盘（100）的厚度方向上的各信息层的位置的位置信息的位置信息区域（132）放置在管理信息区域（130）中。
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公开(公告)号：US20080130464A1
公开(公告)日：2008-06-05
申请号：US11978645
申请日：2007-10-30
IPC分类号： G11B7/135
CPC分类号： G11B27/329 , G11B7/00736 , G11B7/0079 , G11B7/0945 , G11B7/1275 , G11B7/24038 , G11B19/122 , G11B20/1217 , G11B27/105 , G11B2007/0006 , G11B2007/0013 , G11B2220/235
摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.
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公开(公告)号：US07349295B2
公开(公告)日：2008-03-25
申请号：US10021000
申请日：2001-12-19
申请人： Nobuo Takeshita
发明人： Nobuo Takeshita
IPC分类号： G11B7/09
CPC分类号： G11B7/0935 , G11B7/0933 , G11B7/0956
摘要： A lens holder (101) holds an objective lens (4) and a support shaft (103) is inserted in a bearing hole (101a) in the lens holder (101). Light that is emitted from a light source and reflected by an information recording medium enters two light receiving parts, which output currents (I21a, I21b) responsive to the amounts of light received. A controller (109) applies a current (I96) based on the difference between the currents (I21a, I21b) to coils (116a) in an inclination drive unit (106). By interaction between the coils (116a) and magnets (116b), the lens holder (101) is turned on a first axis (I) while the light source and other components are secured. Fluids provided in the bearing hole (101a) further improve the vibration-resisting properties.
摘要翻译： 透镜保持架（101）保持物镜（4），支撑轴（103）插入到镜架（101）的轴承孔（101a）中。 从光源发射并由信息记录介质反射的光进入两个光接收部分，其响应于所接收的光量而输出电流（I 21 a，I 21 b）。 控制器（109）基于电流（I 21 a，I 21 b）与倾斜驱动单元（106）中的线圈（116a）之间的差异来施加电流（I 96）。 通过线圈（116a）和磁体（116b）之间的相互作用，透镜夹持器（101）在第一轴线（I）上转动，同时固定光源和其它部件。 设置在轴承孔（101a）中的流体进一步提高了抗振性能。
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公开(公告)号：US20080068969A1
公开(公告)日：2008-03-20
申请号：US11978641
申请日：2007-10-30
CPC分类号： G11B27/329 , G11B7/00736 , G11B7/0079 , G11B7/0945 , G11B7/1275 , G11B7/24038 , G11B19/122 , G11B20/1217 , G11B27/105 , G11B2007/0006 , G11B2007/0013 , G11B2220/235
摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.
摘要翻译： 在具有符合多个不同光盘标准的信息层的多层光盘中，由于每个信息层的类型不被记录在其他信息层中，所以在兼容的光盘装置的读写操作中，符合多个 光盘标准，每次被访问的信息层都改变时，必须读取信息层的类型，并选择一种生成适合于信息层类型的跟踪误差信号的方法，因此访问需要时间。 为了解决上述问题，在根据本发明的具有符合多个不同光盘标准的信息层的光学多层盘中，在信息层之一中的区域中记录关于其他信息层的信息 。 可以通过使用该信息来选择跟踪误差信号生成方法来减少访问其他信息层所需的时间。
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公开(公告)号：US20080056097A1
公开(公告)日：2008-03-06
申请号：US11978595
申请日：2007-10-30
CPC分类号： G11B27/329 , G11B7/00736 , G11B7/0079 , G11B7/0945 , G11B7/1275 , G11B7/24038 , G11B19/122 , G11B20/1217 , G11B27/105 , G11B2007/0006 , G11B2007/0013 , G11B2220/235
摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.
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