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61. 发明申请

US20080192365A1 Optical element driving apparatus 失效
标题翻译：光学元件驱动装置
公开(公告)号：US20080192365A1
公开(公告)日：2008-08-14
申请号：US11703738
申请日：2007-02-08
申请人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
发明人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
IPC分类号： G02B7/02
CPC分类号： G11B7/0932 , G02B7/023 , G02B7/026 , G02B7/08 , G11B7/0933 , G11B7/0935 , G11B2007/0006
摘要： An optical element driving apparatus includes a holder that holds a plurality of switchable optical elements for focusing light on a recording medium, a resiliently deformable supporting unit that supports the holder, a focusing driving unit that drives the holder in a direction of optical axes of the optical elements, and a tracking driving unit that drives the holder in a tracking direction perpendicular to the direction of the optical axes. The switching of the optical elements is performed by moving the holder by means of the tracking driving unit, so as to select one of the optical elements that focuses light on the recording medium.
摘要翻译：光学元件驱动装置包括：保持器，其保持用于将光聚焦在记录介质上的多个可切换光学元件;支撑保持器的可弹性变形的支撑单元;聚焦驱动单元，沿着所述光轴的方向驱动保持器; 光学元件和跟踪驱动单元，其沿着与光轴方向垂直的跟踪方向驱动保持器。通过利用跟踪驱动单元移动保持器来执行光学元件的切换，以便选择将光聚焦在记录介质上的一个光学元件。

62. 发明申请

US20080123497A1 Optical disc and optical disc device 有权
公开(公告)号：US20080123497A1
公开(公告)日：2008-05-29
申请号：US11978611
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： G11B5/58
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.

63. 发明申请

US20070263499A1 Optical disc and optical disc device 有权
公开(公告)号：US20070263499A1
公开(公告)日：2007-11-15
申请号：US11878463
申请日：2007-07-24
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
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.

64. 发明申请

US20070263498A1 Optical disc and optical disc device 有权
公开(公告)号：US20070263498A1
公开(公告)日：2007-11-15
申请号：US11878462
申请日：2007-07-24
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
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.

65. 发明授权

US5864525A Optical disk device 失效
标题翻译：光盘装置
公开(公告)号：US5864525A
公开(公告)日：1999-01-26
申请号：US877822
申请日：1997-06-18
申请人： Nobuo Takeshita , Teruo Fujita
发明人： Nobuo Takeshita , Teruo Fujita
IPC分类号： G11B7/007 , G11B7/09 , G11B7/095 , G11B7/13 , G11B7/135 , G11B7/14 , G11B7/22
CPC分类号： G11B7/133 , G11B7/00718 , G11B7/0908 , G11B7/0916 , G11B7/0933 , G11B7/0935 , G11B7/094 , G11B7/0948 , G11B7/0956 , G11B7/1353 , G11B7/1381 , G11B7/14 , G11B7/22 , G11B7/0909
摘要： In an optical disk device for recording or playing back information on or from an optical information recording medium having land parts forming information tracks and groove parts interposed between adjacent land parts, the land part is illuminated with a first light spot, and the groove part is illuminated a second light spot, a first focus error signal is produced in accordance with the reflected light beam of the first light spot, and a second focus error signal is produced in accordance with the reflected light beam of the second light spot, and focus control is performed in accordance with the first and second focus error signals. In another aspect of the invention, each of the light receiving sections of a photodetector used for receiving the reflected light has an array of tapered projections along in a region between main parts the light receiving sections, and the tapered projections of the light receiving sections are interdigitated with each other. Improved devices for tilting the objective lens is also provided.
摘要翻译：在用于在具有形成信息轨迹的陆地部分和插入在相邻陆部之间的槽部分的光信息记录介质上记录或再现信息的光盘装置中，用第一光点照亮地面部分，并且将槽部分照亮第二光点，根据第一光点的反射光束产生第一聚焦误差信号，并且根据第二光点的反射光产生第二聚焦误差信号，并且聚焦控制根据第一和第二聚焦误差信号进行。在本发明的另一方面，用于接收反射光的光电检测器的每个光接收部分具有沿着光接收部分的主要部分之间的区域中的锥形突起阵列，并且光接收部分的锥形突起是互相指指。还提供了用于倾斜物镜的改进的装置。

66. 发明授权

US5416756A Lens actuating system with improved frequency response for optical disk drive 失效
标题翻译：镜头驱动系统具有改善的光盘驱动器的频率响应
公开(公告)号：US5416756A
公开(公告)日：1995-05-16
申请号：US971233
申请日：1992-11-04
申请人： Nobuo Takeshita , Hideaki Kobachi , Mitsuru Irie , Morihiro Karaki
发明人： Nobuo Takeshita , Hideaki Kobachi , Mitsuru Irie , Morihiro Karaki
IPC分类号： G11B7/085 , G11B7/00
CPC分类号： G11B7/08505
摘要： A lens actuating system for an optical disk drive has an objective lens movably mounted in a movable frame with orthogonal X-, Y-, and Z-axes. A seeking servo moves the frame in the X-direction. A tracking servo moves the objective lens in the X-direction. A focusing servo moves the objective lens in the Z-direction. An optoelectronic sensor detects the relative position of the objective lens and frame in the X-direction, so that the tracking servo can maintain a fixed relative position during track-seeking, or in the Z-direction, to establish a neutral point on the Z-axis for the focusing servo. Force applied by the focusing servo or tracking servo to move the objective lens in one direction can be opposed by an equal and opposite force applied to a driven mass, so that a net zero force is transmitted to the frame.
摘要翻译：用于光盘驱动器的镜头致动系统具有可移动地安装在具有正交X，Y和Z轴的可移动框架中的物镜。寻求伺服器在X方向上移动框架。跟踪伺服在X方向移动物镜。聚焦伺服将物镜沿Z方向移动。光电传感器在X方向上检测物镜和镜架的相对位置，使得跟踪伺服器可以在寻轨期间或在Z方向上保持固定的相对位置，以在Z上建立中性点轴用于聚焦伺服。通过聚焦伺服或跟踪伺服施加的力在一个方向上移动物镜可以通过施加到从动质量上的相等和相反的力相对，从而净零力传递到框架。

67. 发明授权

US5068843A Optical read-write apparatus 失效
标题翻译：光读写装置
公开(公告)号：US5068843A
公开(公告)日：1991-11-26
申请号：US546875
申请日：1990-07-02
申请人： Nobuo Takeshita , Teruo Fujita
发明人： Nobuo Takeshita , Teruo Fujita
IPC分类号： G11B7/09 , G11B7/135 , G11B7/14
CPC分类号： G11B7/1362 , G11B7/0901
摘要： An optical read-write apparatus for reading and writing information in tracks on an optical medium such as an optical disk has two or more beam sources for producing light beams with different wavelengths, and corresponding dichroic mirrors mounted in the path of the beams. Each of the dichroic mirrors reflects light of the wavelength of one of the beams and transmits light of other wavelengths. Piezoelectric transducers are provided for tilting one or more of the dichroic mirrors to adjust the tracking of the beams. An objective lens receives the beams after reflection from the dichroic mirrors and focuses them onto the optical medium.
摘要翻译：用于在诸如光盘的光学介质上的轨道中读取和写入信息的光学读写装置具有两个或更多个用于产生具有不同波长的光束的光束源，以及安装在光束路径中的对应的二向色镜。每个分色镜反射其中一个光束的波长的光并透射其他波长的光。提供压电换能器用于倾斜一个或多个分色镜以调节光束的跟踪。物镜从二向色镜反射后接收光束并将其聚焦到光学介质上。

68. 发明授权

US08693295B2 Optical disc medium and optical disc device 有权
标题翻译：光盘介质和光盘设备
公开(公告)号：US08693295B2
公开(公告)日：2014-04-08
申请号：US12375138
申请日：2007-05-22
申请人： Kenya Nakai , Masahisa Shinoda , Nobuo Takeshita
发明人： Kenya Nakai , Masahisa Shinoda , Nobuo Takeshita
IPC分类号： G11B7/00
CPC分类号： G11B7/24 , G11B7/0901 , G11B7/0941 , G11B7/24085 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： When using an optical disc medium that includes pit trains having their widths narrower than a diffraction limit, it is difficult to detect a tracking error signal and take a tracking-servo control while increasing pit density in a direction orthogonal to a pit-train extension direction. Information pit trains are arranged spirally or concentrically and formed in a structure in which their depths are changed periodically at a pitch radially along the optical disc medium, so that the tracking error signal can be obtained by push-pull detection of diffraction light from the structure.
摘要翻译：当使用包括其宽度窄于衍射极限的凹坑列的光盘介质时，难以检测跟踪误差信号并进行跟踪伺服控制，同时在垂直于凹坑列延伸方向的方向上增加凹坑密度。信息坑列被螺旋地或同心地布置并且形成在其深度沿着光盘介质沿径向周期性地改变的结构中，从而可以通过来自结构的衍射光的推挽检测来获得跟踪误差信号。

69. 发明申请

US20130286810A1 OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE 有权
标题翻译：光学拾取装置和光盘装置
公开(公告)号：US20130286810A1
公开(公告)日：2013-10-31
申请号：US13978160
申请日：2012-01-17
申请人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
发明人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/1392
CPC分类号： G11B7/13927 , G11B7/1362 , G11B7/1376 , G11B2007/0013
摘要： An optical pickup device includes a laser light source 201, a collimating optical system 202 for converting laser light to parallel light, a focusing optical system 205 for focusing the parallel light onto an optical disc, a light detection unit for receiving returning light returning by reflection of the focused light from the optical disc 101 and outputting a detection signal, and a reflecting mirror 204 disposed between the collimating optical system and the focusing optical system. The reflecting mirror 204 has a reflective surface including three regions having different reflectances. The central region on the reflecting surface meets the other two regions, at positions illuminated by the light focused by the light focusing optical system, in boundary lines that are parallel to a radial direction on the optical disc 101. The reflectance of the central region is lower than the reflectances of the other two regions.
摘要翻译：光拾取装置包括激光源201，用于将激光转换为平行光的准直光学系统202，用于将平行光聚焦到光盘上的聚焦光学系统205，用于接收通过反射返回的返回光的光检测单元来自光盘101的聚焦光并输出检测信号，反射镜204设置在准直光学系统和聚焦光学系统之间。反射镜204具有包括具有不同反射率的三个区域的反射表面。反射表面上的中心区域与由光聚焦光学系统聚焦的光照射的位置处在与光盘101上的径向平行的边界线处的另外两个区域相交。中心区域的反射率为低于其他两个地区的反射率。

70. 发明授权

US08270284B2 Optical disk and optical disk device and control device 有权
标题翻译：光盘与光盘装置及控制装置
公开(公告)号：US08270284B2
公开(公告)日：2012-09-18
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： G11B7/24
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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