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51. 发明申请

US20080068969A1 Optical disc and optical disc device 有权
标题翻译：光盘和光盘设备
公开(公告)号：US20080068969A1
公开(公告)日：2008-03-20
申请号：US11978641
申请日：2007-10-30
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： G11B3/74 , 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。

52. 发明申请

US20080056097A1 Optical disc and optical disc device 有权
公开(公告)号：US20080056097A1
公开(公告)日：2008-03-06
申请号：US11978595
申请日：2007-10-30
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： G11B3/74 , G11B11/00
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.

53. 发明申请

US20080056096A1 Optical disc and optical disc device 有权
公开(公告)号：US20080056096A1
公开(公告)日：2008-03-06
申请号：US11978594
申请日：2007-10-30
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： G11B3/74
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.

54. 发明申请

US20070253302A1 Optical disc and optical disc device 有权
公开(公告)号：US20070253302A1
公开(公告)日：2007-11-01
申请号：US11822249
申请日：2007-07-03
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： G11B7/00 , G11B7/24
CPC分类号： G11B7/00736 , G11B7/0901 , G11B7/24038 , G11B2007/0013
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.

55. 发明申请

US20070253301A1 Optical disc and optical disc device 有权
公开(公告)号：US20070253301A1
公开(公告)日：2007-11-01
申请号：US11822240
申请日：2007-07-03
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： G11B7/00 , G11B7/24
CPC分类号： G11B7/00736 , G11B7/0901 , G11B7/24038 , G11B2007/0013
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.

56. 发明申请

US20130044576A1 OPTICAL RECORDING/REPRODUCTION METHOD AND OPTICAL RECORDING/REPRODUCTION DEVICE 有权
标题翻译：光学记录/再现方法和光学记录/再现设备
公开(公告)号：US20130044576A1
公开(公告)日：2013-02-21
申请号：US13642856
申请日：2010-12-15
申请人： Yusuke Kanatake , Tomo Kishigami , Toshiya Matozaki , Nobuo Takeshita
发明人： Yusuke Kanatake , Tomo Kishigami , Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/1392
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/13925 , G11B2007/0013
摘要： An optical recording/reproduction method and device that can perform control for optimizing the amount of spherical aberration in a multilayered optical disc in a short period of time. When the objective lens is displaced in the focusing direction, the amplitude value of the focusing error signal detected just after leaving the focal position of a given first recording layer and the amplitude value of the focusing error signal detected just before passing through the focal position of a given second recording layer other than the first recording layer are measured with a particular spherical aberration, the amplitude ratio of amplitude values is calculated, the difference between spherical aberration and the optimal spherical aberration for the second recording layer is approximated as a function of the amplitude ratio, the optimal spherical aberration is calculated on the basis of this approximation, and the spherical aberration is set.
摘要翻译：一种能够在短时间内对多层光盘中的球面像差的量进行优化的光记录再现方法和装置。当物镜在聚焦方向上移位时，恰好在离开给定第一记录层的焦点位置之后检测到的聚焦误差信号的振幅值和刚刚通过焦点位置之前检测到的聚焦误差信号的振幅值以特定的球面像差测量除了第一记录层之外的给定的第二记录层，计算振幅值的幅度比，将第二记录层的球面像差和最佳球面差之差近似为基于该近似值计算最佳球面像差，并设置球面像差。

57. 发明申请

US20110317534A1 OPTICAL DISC REPRODUCTION POWER SETTING METHOD, OPTICAL DISC REPRODUCTION METHOD, AND OPTICAL DISC DEVICE 失效
标题翻译：光盘再现功率设置方法，光盘再现方法和光盘设备
公开(公告)号：US20110317534A1
公开(公告)日：2011-12-29
申请号：US13203799
申请日：2010-04-07
申请人： Tomo Kishigami , Koichi Ikuta , Nobuo Takeshita , Yoshihiro Kiyose , Yusuke Kanatake
发明人： Tomo Kishigami , Koichi Ikuta , Nobuo Takeshita , Yoshihiro Kiyose , Yusuke Kanatake
IPC分类号： G11B27/36
CPC分类号： G11B7/00736 , G11B7/005 , G11B7/1267
摘要： According to a method for setting the laser beam power applied to reproduce information recorded on an optical disc, information recorded in a region on the optical disc is reproduced using three or more test reproduction powers (S22B), the number of reproductions until the degradation of the quality of the reproduced signal reaches a prescribed value is determined as the degradation number of reproductions (S22F), the relation between the test reproduction power and the degradation number of reproductions is approximated by a curve, and a reproduction power restricting the degradation of the reproduced signal quality to a predetermined amount or less over a certain guaranteed number of reproductions is determined (S25F). In optical reproduction from an optical disc on which information is recorded, the optimum power of irradiation for reproduction can be set, and degradation of the information due to the reproducing light can be prevented.
摘要翻译：根据用于设置用于再现记录在光盘上的信息的激光束功率的方法，记录在光盘上的区域中的信息使用三个或更多个测试再现功率（S22B）被再现，直到再现的次数将再现信号的质量达到规定值确定为再现的劣化次数（S22F），则通过曲线近似测试再现功率和再现的退化次数之间的关系，并且限制了再现的劣化确定在一定的保证数量的再现的再现信号质量达预定量或更小的值（S25F）。在从记录有信息的光盘进行光学再现时，可以设置用于再现的照射的最佳功率，并且可以防止由于再现光引起的信息的劣化。

58. 发明授权

US08040763B2 Objective lens driving device and optical pickup device 失效
标题翻译：物镜驱动装置和光拾取装置
公开(公告)号：US08040763B2
公开(公告)日：2011-10-18
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（11a- 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。

59. 发明授权

US07800985B2 Optical pickup device 有权
标题翻译：光学拾取装置
公开(公告)号：US07800985B2
公开(公告)日：2010-09-21
申请号：US11885164
申请日：2006-01-30
申请人： Toshiya Matozaki , Nobuo Takeshita
发明人： Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/09
CPC分类号： G11B7/0925 , G11B7/0946 , G11B7/13927
摘要： An optical pickup device includes an objective lens (1) for focusing a light flux onto an information layer of a disk-shaped medium, an objective lens driving unit that drives the objective lens (1) in a focus servo direction and in a tracking servo direction, a correction lens (14) disposed on the same optical axis as the objective lens (1), and a correction lens driving unit that drives the correction lens (14) in the same direction as the focus servo direction to control the condition of the light flux incident on the objective lens.
摘要翻译：一种光拾取装置，包括用于将光束聚焦到盘形介质的信息层上的物镜（1），在聚焦伺服方向上驱动物镜（1）的物镜驱动单元和跟踪伺服方向，设置在与物镜（1）相同的光轴上的校正透镜（14）和校正透镜驱动单元，其沿与聚焦伺服方向相同的方向驱动校正透镜（14），以控制校正透镜入射到物镜上的光通量。

60. 发明申请

US20080165662A1 Optical Pickup Device 有权
标题翻译：光学拾取装置
公开(公告)号：US20080165662A1
公开(公告)日：2008-07-10
申请号：US11885164
申请日：2006-01-30
申请人： Toshiya Matozaki , Nobuo Takeshita
发明人： Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/135
CPC分类号： G11B7/0925 , G11B7/0946 , G11B7/13927
摘要： An optical pickup device includes an objective lens (1) for focusing a light flux onto an information layer of a disk-shaped medium, an objective lens driving unit that drives the objective lens (1) in a focus servo direction and in a tracking servo direction, a correction lens (14) disposed on the same optical axis as the objective lens (1), and a correction lens driving unit that drives the correction lens (14) in the same direction as the focus servo direction to control the condition of the light flux incident on the objective lens.
摘要翻译：一种光拾取装置，包括用于将光束聚焦到盘形介质的信息层上的物镜（1），在聚焦伺服方向上驱动物镜（1）的物镜驱动单元和跟踪伺服方向，设置在与物镜（1）相同的光轴上的校正透镜（14）和校正透镜驱动单元，其沿与聚焦伺服方向相同的方向驱动校正透镜（14），以控制校正透镜入射到物镜上的光通量。

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