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31. 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。

32. 发明申请

US20070263497A1 Optical disc and optical disc device 有权
公开(公告)号：US20070263497A1
公开(公告)日：2007-11-15
申请号：US11878461
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.

33. 发明申请

US20060227335A1 Light wavefront measuring instrument, light wavefront measuring method, and light source adjusting method 失效
标题翻译：光波前测量仪，光波前测量方法和光源调节方法
公开(公告)号：US20060227335A1
公开(公告)日：2006-10-12
申请号：US10548838
申请日：2003-11-17
申请人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
发明人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
IPC分类号： G01B9/02
CPC分类号： G11B7/22 , G01J9/02 , G11B7/1359 , G11B7/1367 , G11B7/1376 , G11B7/1381 , G11B7/1392 , G11B7/13927
摘要： A light wavefront measuring apparatus (2, 2a, 42) includes a separating element (7a, 47a) for separating a flux of light which exits from an optical head (1, 31) into a first beam and a second beam, a first interference fringe display section (21, 21a) for displaying interference fringes formed from the first beam, a Dove prism (13, 53) for rotating a wavefront of the second beam around its optical axis (AX2), and a second interference fringe display section (22, 22a) for displaying interference fringes formed from the second beam which passed through it. In adjustment of the light source device, position of a collimator (5) in the optical head (1, 31) is adjusted in optical axis direction so as to approximate the interference fringe patterns displayed in the interference fringe display sections (21, 22, 21a, 22a) each other.
摘要翻译：光波前测量装置（2,2a，42）包括分离元件（7a，47a），用于将从光头（1,31）射出的光束分离成第一光束和第二光束，用于显示由第一光束形成的干涉条纹的第一干涉条纹显示部分（21,21a），用于使第二光束的波前绕其光轴旋转的道威斯棱镜（13,53） SUB>）和第二干涉条纹显示部分（22,22a），用于显示由穿过它的第二光束形成的干涉条纹。在光源装置的调整中，在光头（1,31）中的准直仪（5）的位置在光轴方向上调整为近似于在干涉条纹显示部（21,22）中显示的干涉条纹图案， 21 a，22 a）彼此。

34. 发明授权

US06775207B2 Device for driving optical system 有权
标题翻译：光学系统驱动装置
公开(公告)号：US06775207B2
公开(公告)日：2004-08-10
申请号：US10292700
申请日：2002-11-13
申请人： Nobuo Takeshita , Mitoru Yabe
发明人： Nobuo Takeshita , Mitoru Yabe
IPC分类号： G11B7095
CPC分类号： G11B7/0956 , G11B7/0932
摘要： An objective lens (1) for focusing light on an optical recording medium (not shown) and irradiating the same with the focused light is held on a lens holder (2). A support member (10) is provided on a base member (9) as a foundation of a device for driving optical system. The lens holder (2) is supported on the support member (10). Six linear elastic bodies (7a through 7f) of the same length are cylindrically shaped. The lens holder (2) is supported on the support member (10) by the linear elastic bodies (7a through 7f). A center of a circle formed by the ends of the linear elastic bodies (7a through 7f) is an axis of point symmetry thereof. Distances between adjacent ones of the ends of the linear elastic bodies (7a through 7f) are all the same.
摘要翻译：用于将光聚焦在光学记录介质（未示出）上并用聚焦光照射的物镜（1）保持在透镜架（2）上。支撑构件（10）设置在基部构件（9）上，作为用于驱动光学系统的装置的基础。透镜架（2）支撑在支撑部件（10）上。具有相同长度的六个线性弹性体（7a至7f）是圆柱形的。透镜架（2）通过线性弹性体（7a至7f）支撑在支撑构件（10）上。由线性弹性体（7a至7f）的端部形成的圆的中心是其点对称轴。线性弹性体（7a至7f）的相邻端部之间的距离全部相同。

35. 发明授权

US5293363A Optical head apparatus with light weight movable lens holder 失效
标题翻译：光学头设备，重量轻的可移动镜头支架
公开(公告)号：US5293363A
公开(公告)日：1994-03-08
申请号：US32418
申请日：1993-03-15
申请人： Nobuo Takeshita
发明人： Nobuo Takeshita
IPC分类号： G11B7/09 , G11B7/00 , G11B21/00
CPC分类号： G11B7/0935
摘要： An optical head apparatus wherein a lens holder which holds an objective lens for condensing a light beam on an optical recording medium is turned in a plane perpendicular to an optical axis of the objective lens and one portion of construction members of turning unit for performing a tracking control for the optical recording medium is fixed to a fixed body. One or some of construction members of the turning unit for tracking control is not mounted to a moving body for supporting the lens holder but is mounted to the fixed body, as a result, weight of a movable unit including the moving body and its loading members is to be reduced to realize high-speed access with respect to the optical recording medium.
摘要翻译：一种光学头装置，其中保持用于将光束聚光在光学记录介质上的物镜的透镜保持器在与物镜的光轴垂直的平面中转动，并且一部分用于执行跟踪的转动单元的构造构件光记录媒体的控制被固定在固定体上。用于跟踪控制的转动单元的一个或一些构造构件不安装到用于支撑透镜架的移动体，而是安装到固定体，结果，包括移动体及其装载构件的可移动单元的重量被减少以实现相对于光学记录介质的高速访问。

36. 发明授权

US08891342B2 Optical head device and optical disc device 有权
标题翻译：光头设备和光盘设备
公开(公告)号：US08891342B2
公开(公告)日：2014-11-18
申请号：US14362865
申请日：2012-10-11
申请人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
发明人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/00 , G11B7/13 , G11B7/09 , G11B7/1353
CPC分类号： G11B7/1353 , G11B7/0901 , G11B2007/0013
摘要： An optical component, a hologram, and a photodetector are configured in an optical head device of an optical disc device such that a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in the intended information recording layer strikes the interior of the light-receiving surfaces of the tracking error detection light-receiving sections, a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in an information recording layer one layer deeper than the intended information recording layer strikes outside the light-receiving sections, and a +1-order beam or a −1-order beam of diffracted light that is generated from light reflected from an information track in an information recording layer one layer shallower than the intended information recording layer strikes outside the light-receiving sections.
摘要翻译：光学元件，全息图和光电检测器被配置在光盘装置的光学头装置中，使得从在光盘装置中的信息轨道反射的光产生的+ 1级光束或-1级衍射光束目标信息记录层撞击跟踪误差检测光接收部分的光接收表面的内部，从信息中的信息轨迹反射的光产生的+ 1级光束或-1级衍射光束比预期的信息记录层更深一层的记录层撞击光接收部分外部，以及从信息记录中从信息轨道反射的光产生的+1级光束或-1级衍射光束比预期的信息记录层浅的层1撞击光接收部分。

37. 发明申请

US20140043950A1 SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND OPTICAL DISC APPARATUS 有权
标题翻译：信号处理装置，信号处理方法和光盘装置
公开(公告)号：US20140043950A1
公开(公告)日：2014-02-13
申请号：US14114059
申请日：2012-02-17
申请人： Masayuki Omaki , Kenya Nakai , Nobuo Takeshita
发明人： Masayuki Omaki , Kenya Nakai , Nobuo Takeshita
IPC分类号： G11B20/10
CPC分类号： G11B20/10222 , G11B20/10037 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/1024 , G11B20/10277 , G11B20/10462 , G11B2220/2537
摘要： Provided is a signal processing device including: an adaptive filter; a PRML circuit for sequentially generating binarized data from a filtered reproduced waveform by sampling at sampling points in a period based on a clock signal and sequentially generating a partial response waveform which is to be the target waveform from the binarized data; a calculating unit for sequentially calculating first phase errors from a difference between the target waveform and the filtered reproduced waveform; a limiting unit for outputting second phase errors by excluding a specific phase error from the first phase errors; and a clock generating unit for generating the clock signal of a frequency corresponding to the second phase errors; wherein the specific phase error includes a phase error at a time when the partial response waveform reaches a specific level which excludes at least a level not less than a predetermined amplitude level.
摘要翻译：提供一种信号处理装置，包括：自适应滤波器; PRML电路，用于基于时钟信号在一个周期的采样点采样从所滤波的再现波形顺序地生成二值化数据，并从二值化数据顺序地产生作为目标波形的部分响应波形; 计算单元，用于从目标波形和滤波的再现波形之间的差顺序地计算第一相位误差; 限制单元，用于通过从第一相位误差排除特定相位误差来输出第二相位误差; 以及时钟产生单元，用于产生与第二相位误差对应的频率的时钟信号; 其中所述特定相位误差包括当所述部分响应波形达到排除至少不小于预定幅度电平的电平的特定电平时的相位误差。

38. 发明授权

US08630159B2 Optical disc and optical disc device 有权
标题翻译：光盘和光盘设备
公开(公告)号：US08630159B2
公开(公告)日：2014-01-14
申请号：US13551113
申请日：2012-07-17
申请人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
发明人： Hironori Nakahara , Nobuo Takeshita , Masaharu Ogawa
IPC分类号： 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, 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没有被记录在其他信息层中，所以每次被访问的信息层都改变时，必须读取类型的信息层，并选择一种生成符合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。

39. 发明授权

US08339909B2 Optical disc device 有权
标题翻译：光盘设备
公开(公告)号：US08339909B2
公开(公告)日：2012-12-25
申请号：US13258538
申请日：2010-05-21
申请人： Kenya Nakai , Masayuki Ohmaki , Nobuo Takeshita
发明人： Kenya Nakai , Masayuki Ohmaki , Nobuo Takeshita
IPC分类号： G11B7/00
CPC分类号： G11B7/005 , G11B7/131 , G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10222 , G11B20/10296 , G11B20/10416 , G11B2220/2595
摘要： A first signal is detected from the central part of a light beam returning from a super-resolution optical disc; a second signal is detected from a peripheral part in a direction corresponding to a track on the super-resolution optical disc; a gain adjustment unit is provided to adjust the amplitude of the first signal; a subtraction unit is provided to generate a third signal by subtracting, from the second signal, the first signal with the amplitude adjusted by the gain adjustment unit; and an unit is provided to generate a reproduced signal by combining the first signal and a signal obtained by delaying the third signal.
摘要翻译：从从超分辨率光盘返回的光束的中心部分检测第一信号; 在与超分辨率光盘上的轨道对应的方向上从外围部分检测第二信号; 提供增益调整单元来调整第一信号的幅度; 减法单元被提供以通过从第二信号中减去由增益调整单元调整的幅度的第一信号来产生第三信号; 并且提供单元以通过组合第一信号和通过延迟第三信号而获得的信号来产生再现信号。

40. 发明授权

US08014253B2 Optical disc and optical disc device 有权
公开(公告)号：US08014253B2
公开(公告)日：2011-09-06
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： G11B7/20
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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