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1. 发明授权

US09454987B2 Optical information processing apparatus and optical information processing method, and adjustment device, adjustment method, and adjustment program for optical information processing apparatus 有权
标题翻译：光信息处理装置和光信息处理方法以及光信息处理装置的调整装置，调整方法和调整程序
公开(公告)号：US09454987B2
公开(公告)日：2016-09-27
申请号：US14374866
申请日：2013-02-21
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Tomo Kishigami , Nobuo Takeshita
IPC分类号： G11B7/00 , G11B7/1392 , G11B11/105 , G11B7/09 , G11B7/1398 , G11B7/1372 , G11B7/1378
CPC分类号： G11B7/13925 , G11B7/0908 , G11B7/0925 , G11B7/094 , G11B7/0943 , G11B7/0945 , G11B7/1378 , G11B7/1398 , G11B11/10576 , G11B2007/13727
摘要： An optical information processing apparatus includes: a unit that radiates light onto an optical disc and detects the reflected light to output a reproduced signal; a unit that corrects spherical aberration of the light; a unit that adjusts a focus position of the light based on a focus adjustment value; and an adjustment unit that measures a characteristic of the reproduced signal at each of at least three positions on each of at least three straight lines on a plane with coordinate axes representing an amount of spherical aberration correction and focus adjustment value, obtains, from the measurements, as estimated positions, at least five positions on the plane at which the characteristic has substantially the same value, performs an ellipse approximation on the estimated positions, obtains a center of the ellipse, and determines the amount of spherical aberration correction and focus adjustment value based on the center of the ellipse.
摘要翻译：光信息处理设备包括：将光辐射到光盘上并检测反射光以输出再现信号的单元; 校正光的球面像差的单元; 基于焦点调整值来调整光的聚焦位置的单元; 以及调整单元，其在具有表示球面像差校正和焦点调整值的坐标轴的平面上的至少三条直线中的至少三个位置中的至少三个位置的每一个处测量再现信号的特性，作为估计位置，在特征具有基本相同值的平面上的至少五个位置对估计位置执行椭圆近似，获得椭圆的中心，并且确定球面像差校正量和焦点调整值基于椭圆的中心。

2. 发明申请

US20130083643A1 OPTICAL PICKUP APPARATUS 审中-公开
公开(公告)号：US20130083643A1
公开(公告)日：2013-04-04
申请号：US13632292
申请日：2012-10-01
申请人： Sanyo Electric Co., Ltd. , Sanyo Optec Design Co., Ltd.
发明人： Hitoshi OGURA , Kiyoshi HIBINO
IPC分类号： G11B7/00
CPC分类号： G11B7/0909 , G11B7/094 , G11B7/0943 , G11B2007/0013
摘要： An optical pickup apparatus including a photodetector including first to fourth quadrant light-receiving portions, a first generating unit configured to generate a focus error signal based on respective signals from the first to fourth light-receiving portions, a second generating unit configured to generate a tracking error signal based on respective signals from the first to fourth light-receiving portions, first to fourth low-pass filters configured to allow respective signals to be input thereto from the first to fourth light-receiving portions, a third generating unit configured to generate a first correction signal for correcting the focus error signal by performing subtraction on an addition signal obtained by adding respective signals from the first and fourth low-pass filters, and an addition signal obtained by adding respective signals from the second and third low-pass filters, and a correction unit configured to correct the focus error signal based on the first correction signal.
摘要翻译：一种光拾取装置，包括：第一至第四象限光接收部分的光检测器;第一生成单元，被配置为基于来自第一至第四光接收部的各信号产生聚焦误差信号;第二生成单元，基于来自第一至第四光接收部分的相应信号的跟踪误差信号，被配置为允许从第一至第四光接收部分输入各信号的第一至第四低通滤波器;第三生成单元，第一校正信号，用于通过对通过将来自第一和第四低通滤波器的相应信号相加而获得的相加信号进行减法来校正聚焦误差信号，以及通过将来自第二和第三低通滤波器的相应信号相加而获得的相加信号以及校正单元，被配置为基于第一校正s来校正聚焦误差信号点燃

3. 发明授权

US08121013B2 Optical pickup apparatus and optical disc apparatus 失效
标题翻译：光拾取装置和光盘装置
公开(公告)号：US08121013B2
公开(公告)日：2012-02-21
申请号：US12567299
申请日：2009-09-25
申请人： Kenji Nagatomi , Yoichi Tsuchiya
发明人： Kenji Nagatomi , Yoichi Tsuchiya
IPC分类号： G11B7/135
CPC分类号： G11B7/094 , G11B7/0901 , G11B7/0912 , G11B7/0943 , G11B7/133 , G11B7/1353 , G11B7/1378 , G11B2007/0013
摘要： An optical pickup apparatus changes a propagation direction of luminous fluxes, out of a laser light reflected by a disc, in four luminous flux regions set about a laser optical axis so as to mutually disperse these luminous fluxes. A signal light region in which only a signal light is present appears on a detection surface of a photodetector. A plurality of sensors for a signal light are placed at positions irradiated with the signal light within the region. When an arithmetic process is performed on a detection signal outputted from each sensor, a DC component occurring in a tracking error signal is suppressed.
摘要翻译：光拾取装置将由光反射的激光中的光束的传播方向改变为围绕激光光轴设置的四个光通量区域中，以便相互分散这些光通量。在光电检测器的检测表面上出现仅存在信号光的信号光区域。用于信号光的多个传感器被放置在用该区域内的信号光照射的位置处。当对从每个传感器输出的检测信号执行运算处理时，抑制在跟踪误差信号中出现的DC分量。

4. 发明申请

US20110069597A1 OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRATED DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTION METHOD 审中-公开
标题翻译：光学头装置，全息光学装置，光学集成装置，光信息处理装置和信号检测方法
公开(公告)号：US20110069597A1
公开(公告)日：2011-03-24
申请号：US12935398
申请日：2010-03-18
申请人： Hiroaki Yamamoto , Jun-iti Asada
发明人： Hiroaki Yamamoto , Jun-iti Asada
IPC分类号： G11B7/00 , G02B5/32
CPC分类号： G11B7/1353 , G11B7/0906 , G11B7/0909 , G11B7/0943
摘要： An optical head apparatus including a holographic optical device which diffracts a light beam and includes a first diffraction region and a second diffraction region facing each other across a region dividing line passing through an optical axis of a light-collection optical system and extending in a radial direction of an optical disc, the first diffraction region having a grating pattern for generating diffracted light having a first wavefront and entering a first photoreception region and a second photoreception region, the second diffraction region having a grating pattern for generating diffracted light having a second wavefront and entering a third photoreception region and a fourth photoreception region, the first and second wavefronts having first and second coma aberrations in the radial direction of the optical disc, respectively, and the first and second coma aberrations having axes located off the optical axis.
摘要翻译：一种光学头装置，包括衍射光束并包括第一衍射区域和第二衍射区域的全息光学装置，所述第一衍射区域和第二衍射区域跨越通过光收集光学系统的光轴并沿径向延伸的区域划分线所述第一衍射区域具有用于产生具有第一波前并进入第一光接收区域和第二光接收区域的衍射光的光栅图案，所述第二衍射区域具有用于产生具有第二波前的衍射光的光栅图案并且进入第三光接收区域和第四光接收区域，所述第一和第二波前分别在所述光盘的径向方向上具有第一和第二彗形像差，并且所述第一和第二彗形像差具有位于所述光轴的轴线。

5. 发明申请

US20110051574A1 OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE USING THE SAME 有权
标题翻译：光学拾取器件和使用该光学器件的光学器件
公开(公告)号：US20110051574A1
公开(公告)日：2011-03-03
申请号：US12760592
申请日：2010-04-15
申请人： TOSHITERU NAKAMURA , NOBUO NAKAI , SHIGEHARU KIMURA
发明人： TOSHITERU NAKAMURA , NOBUO NAKAI , SHIGEHARU KIMURA
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0906 , G11B7/094 , G11B7/0943 , G11B7/133 , G11B2007/0013
摘要： Of the beams reflected by an optical disk, only peripheral beams excluding the push-pull region are used to generate a DPD signal in order to optimize internal wire connections among the light receiving areas of the optical detector and thereby reduce the amplification factor of the lens error signal, required for generating the tracking error signal of the DPP method. A beam reflected from a multilayered optical disk is divided into some beam diffraction areas. The divided beam diffraction areas and the light receiving areas are so arranged that the divided beams focus at different positions on the optical detector and that, when a beam is focused on a target recording layer of the disk, stray light from other than the target recording layer being reproduced does not enter into the servo signal light receiving area of the optical detector.
摘要翻译：在由光盘反射的光束中，仅使用不包括推挽区域的外围光束来产生DPD信号，以便优化光学检测器的光接收区域之间的内部线路连接，从而降低透镜的放大系数产生DPP方法的跟踪误差信号所需的误差信号。从多层光盘反射的光束被分成一些光束衍射区域。分割光束衍射区域和光接收区域被布置成使得分光束聚焦在光学检测器上的不同位置处，并且当光束聚焦在盘的目标记录层上时，来自除目标记录之外的杂散光被再现的层不进入光学检测器的伺服信号光接收区域。

6. 发明申请

US20100309766A1 TRACKING CONTROL DEVICE, TRACKING CONTROL METHOD, AND OPTICAL DISC APPARATUS 有权
标题翻译：跟踪控制装置，跟踪控制方法和光盘装置
公开(公告)号：US20100309766A1
公开(公告)日：2010-12-09
申请号：US12793038
申请日：2010-06-03
申请人： Takashi KISHIMOTO , Takeharu Yamamoto , Yoshirou Kashiwabara , Akihiro Arai
发明人： Takashi KISHIMOTO , Takeharu Yamamoto , Yoshirou Kashiwabara , Akihiro Arai
IPC分类号： G11B20/18
CPC分类号： G11B7/0903 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B2007/0013
摘要： The invention provides a tracking control device, a tracking control method, and an optical disc apparatus that enable to stably perform the tracking control, and reduce an influence of stray light from the other layer on the tracking control. A sub push-pull signal correcting section corrects a sub push-pull signal to be generated from returning light of a sub beam in such a manner that a track crossing component of a main push-pull signal to be generated from returning light of a main beam, and a track crossing component of the sub push-pull signal to be generated from the returning light of the sub beam are canceled. A low pass filter reduces a high frequency component of the sub push-pull signal corrected by the sub push-pull signal correcting section. A subtractor subtracts a sub push-pull signal passing the low pass filter from the main push-pull signal to thereby generate a tracking error signal.
摘要翻译：本发明提供一种跟踪控制装置，跟踪控制方法和光盘装置，其能够稳定地执行跟踪控制，并且减少来自另一层的杂散光对跟踪控制的影响。子推挽信号校正部分校正从子光束的返回光产生的副推挽信号，使得从主信号的返回光产生的主推挽信号的轨道交叉分量并且从副光束的返回光产生的副推挽信号的轨迹交叉分量被消除。低通滤波器降低由副推挽信号校正部校正的副推挽信号的高频分量。减法器从主推挽信号中减去通过低通滤波器的副推挽信号，从而产生跟踪误差信号。

7. 发明授权

US07830761B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US07830761B2
公开(公告)日：2010-11-09
申请号：US11908519
申请日：2006-03-20
申请人： Hiroshi Kayama , Hiroaki Matsumiya , Kazuo Momoo
发明人： Hiroshi Kayama , Hiroaki Matsumiya , Kazuo Momoo
IPC分类号： G11B20/00
CPC分类号： G11B7/094 , G11B7/0943 , G11B2007/0013
摘要： An optical disk apparatus according to the present invention includes: a rotation driving section on which an optical disk is to be mounted and which drives the optical disk so as to be rotated; a light source; an objective lens for converging light from the light source onto an optical disk mounted on the rotation driving section; a photodetector having at least two detection sections for detecting reflected light, from the optical disk, of the light; and an error signal generation section for deriving a difference signal and a sum signal of respective outputs from the two detection sections of the photodetector, adjusting an offset in at least the sum signal among the difference signal and the sum signal, and thereafter dividing the difference signal by the sum signal whose offset has been adjusted to generate a position error signal of the objective lens.
摘要翻译：根据本发明的光盘装置包括：旋转驱动部，其上安装有光盘并驱动光盘以便旋转; 光源; 用于将来自光源的光聚光到安装在旋转驱动部上的光盘上的物镜; 光检测器，具有至少两个用于检测来自光盘的反射光的检测部分; 以及误差信号生成部，用于从光检测器的两个检测部分导出差分信号和各个输出的和信号，调整差分信号和和信号中的至少和信号中的偏移，然后除差信号通过其偏移量被调整的和信号产生物镜的位置误差信号。

8. 发明申请

US20100135143A1 OPTICAL SYSTEM, OPTICAL PICKUP APPARATUS, AND OPTICAL DISC APPARATUS FOR EXTRACTING SIGNAL BEAMS 有权
标题翻译：光学系统，光学拾取装置和提取信号灯的光盘装置
公开(公告)号：US20100135143A1
公开(公告)日：2010-06-03
申请号：US12091048
申请日：2007-08-13
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/00
CPC分类号： G11B7/005 , G11B7/0943 , G11B7/131 , G11B7/1353 , G11B7/1356 , G11B7/1367 , G11B7/1369 , G11B7/1381 , G11B7/14 , G11B2007/0013
摘要： An optical system for efficiently extracting plural signal beams from a bundle of rays reflected from a multilayer optical disc.
摘要翻译：一种用于从多层光盘反射的光束有效地提取多个信号光束的光学系统。

9. 发明授权

US07580173B2 Optical information detecting method and optical information detector 有权
标题翻译：光信息检测方法和光信息检测器
公开(公告)号：US07580173B2
公开(公告)日：2009-08-25
申请号：US11486447
申请日：2006-07-13
申请人： Pil-Sang Yoon
发明人： Pil-Sang Yoon
IPC分类号： G02F1/07
CPC分类号： G11B7/0065 , G11B7/0943 , G11B7/131
摘要： There is provided an optical information detecting method comprising: detecting an image of a source data page containing a frame mask by the use of an optical detection region within respective 1:N (where N is greater than 1) excessive detection pixels; monitoring a light intensity of the detected image and determining a matching state of the frame mask; determining an arrangement pattern of valid detection pixels of the detection pixels in accordance with the determined matching state of the frame mask and detecting sampling detection pixels; and sampling an image of the sampling detection pixels from the detected image and reproducing the image of the source data page. There is also an optical information detector used to put the optical information detecting method into practice. Accordingly, it is possible to detect optical information with high reliability without performing complex calculation by the use of a 1:N over-sampling method.
摘要翻译：提供了一种光信息检测方法，包括：通过使用相应的1：N（其中N大于1）的光检测区域检测包含帧掩码的源数据页的图像;过多的检测像素; 监视检测到的图像的光强度并确定帧掩码的匹配状态; 根据确定的帧掩码的匹配状态确定检测像素的有效检测像素的布置图案并检测采样检测像素; 并从检测到的图像中采样采样检测像素的图像并再现源数据页的图像。还有一种用于将光学信息检测方法付诸实践的光学信息检测器。因此，可以通过使用1：N过采样方法来检测具有高可靠性的光信息而不进行复杂计算。

10. 发明授权

US07558162B2 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
公开(公告)号：US07558162B2
公开(公告)日：2009-07-07
申请号：US11981487
申请日：2007-10-31
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.

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