公开(公告)号：US06580677B1

公开(公告)日：2003-06-17

申请号：US09486751

申请日：2000-06-16

申请人： Norio Chiba ,  Yasuyuki Mitsuoka ,  Manabu Oumi ,  Nobuyuki Kasama ,  Takashi Niwa

发明人： Norio Chiba ,  Yasuyuki Mitsuoka ,  Manabu Oumi ,  Nobuyuki Kasama ,  Takashi Niwa

IPC分类号： G11B700

CPC分类号： G11B7/24085 ,  B82Y10/00 ,  G11B7/013 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/131 ,  G11B7/1384 ,  G11B7/1387 ,  G11B7/24

摘要： There is provided an information recording medium and an information reproducing apparatus capable of carrying out information reproduction and tracking control by utilizing near-field light. A data bit 12 of a convex having a section orthogonal to a tracking direction in a triangular shape is formed on an information recording medium 3 as an information unit, by scattering near-field light formed at a reproducing probe 1 at inclined faces of the data bit 12 with directionalities, fluxes of reflected and scattered light thereby are detected by reproduced light detectors 6 and 7 arranged symmetrically in a left and right direction relative to a central axis of the reproducing probe 1 along the tracking direction, a differential signal between the detected signals is outputted by a difference circuit 20 and an actuator 22 is driven by the differential signal via a tracking signal forming circuit 21 and a position of the reproducing probe 1 is controlled to carry out the tracking control.

摘要翻译： 提供了一种能够通过利用近场光执行信息再现和跟踪控制的信息记录介质和信息再现装置。 在作为信息单元的信息记录介质3上形成具有与三角形的跟踪方向正交的部分的凸起的数据位12，通过在数据的倾斜面处散射形成在再现探头1处的近场光 具有方向性的位12，由此由跟踪方向相对于再现探头1的中心轴在左右方向上对称布置的再现光检测器6和7检测反射和散射光的通量，检测到的差分信号 信号由差分电路20输出，并且致动器22经由跟踪信号形成电路21由差分信号驱动，并且再现探头1的位置被控制以执行跟踪控制。

公开(公告)号：US06473384B1

公开(公告)日：2002-10-29

申请号：US09787855

申请日：2001-04-27

申请人： Manabu Oumi ,  Yasuyuki Mitsuoka ,  Nobuyuki Kasama ,  Kenji Kato ,  Takashi Niwa ,  Hidetaka Maeda ,  Yoko Shinohara

发明人： Manabu Oumi ,  Yasuyuki Mitsuoka ,  Nobuyuki Kasama ,  Kenji Kato ,  Takashi Niwa ,  Hidetaka Maeda ,  Yoko Shinohara

IPC分类号： G11B700

CPC分类号： B82Y15/00 ,  B82Y10/00 ,  G11B7/122 ,  G11B7/1384 ,  G11B7/1387 ,  G11B2007/13727

摘要： An optical information device has a suspension arm, a moving mechanism for movably supporting the suspension arm relative to a recording medium, an optical head supported by the suspension arm proximate the recording medium and having a slider and a flexible structure for linking the slider to the suspension arm so that the slider undergoes relative sliding movement with respect to the recording medium for at least one of recording information to the recording medium and reading information from the recording medium, and an optical waveguide for guiding light between the suspension arm and the slider. The optical waveguide is integrally formed with the flexible structure and preferably comprises patterned films formed on the optical head.

摘要翻译： 光学信息装置具有悬挂臂，用于相对于记录介质可移动地支撑悬架臂的移动机构，由靠近记录介质的悬架臂支撑的光学头，并具有滑块和用于将滑块与 悬架臂，使得滑块相对于记录介质经历相对滑动运动，用于记录信息到记录介质和从记录介质读取信息中的至少一个，以及用于在悬架臂和滑块之间引导光的光波导。 光波导与柔性结构一体地形成，并且优选地包括形成在光学头上的图案化膜。

公开(公告)号：US06466537B1

公开(公告)日：2002-10-15

申请号：US09423848

申请日：2001-02-20

申请人： Nobuyuki Kasama ,  Norio Chiba ,  Yasuyuki Mitsuoka ,  Manabu Oumi ,  Kenji Kato ,  Takashi Niwa ,  Kunio Nakajima

发明人： Nobuyuki Kasama ,  Norio Chiba ,  Yasuyuki Mitsuoka ,  Manabu Oumi ,  Kenji Kato ,  Takashi Niwa ,  Kunio Nakajima

IPC分类号： G11B700

CPC分类号： G11B7/0908 ,  B82Y10/00 ,  G11B7/127 ,  G11B7/1275 ,  G11B7/1387 ,  Y10S977/862 ,  Y10S977/947

摘要： In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recording medium 10 to create near-field light on a surface of the recording medium 10. The created near-field light is scattered by a microscopic aperture 12 formed in the aperture element 11 so that scattering light (propagation light) thereof is detected to create a reproduced signal. Derived from the created reproduced light a distance control signal representative of a distance between the microscopic aperture 12 and the recording medium 10. Based on the distance control signal, the aperture element 11 is controlled in position. Due to this, the microscopic aperture 12 is brought into proximity to the recording medium 10.

公开(公告)号：US06429419B1

公开(公告)日：2002-08-06

申请号：US09423850

申请日：2000-03-20

申请人： Yasuyuki Mitsuoka ,  Norio Chiba ,  Nobuyuki Kasama ,  Takashi Niwa ,  Kunio Nakajima

发明人： Yasuyuki Mitsuoka ,  Norio Chiba ,  Nobuyuki Kasama ,  Takashi Niwa ,  Kunio Nakajima

IPC分类号： H01J314

CPC分类号： G11B7/22 ,  B82Y10/00 ,  G11B7/122 ,  G11B7/124

摘要： A near-field optical head has a tip end having an edge portion defined by two intersecting planes. Information recorded on a recording medium is reproduced in accordance with an intensity of scattered light of an evanescent field generated when the recording medium is illuminated with light and the tip end of the optical head is brought proximate the recording medium at an interval equal to or smaller than a wavelength of light therebetween.

摘要翻译： 近场光学头具有具有由两个相交平面限定的边缘部分的尖端。 记录在记录介质上的信息根据当用光照射记录介质时产生的ev逝场的散射光的强度被再现，并且光学头的末端以等于或等于的间隔被带到记录介质附近 比它们之间的光波长。

公开(公告)号：US06376827B1

公开(公告)日：2002-04-23

申请号：US09403406

申请日：2000-02-14

申请人： Nobuyuki Kasama ,  Yasuyuki Mitsuoka ,  Norio Chiba ,  Takashi Niwa ,  Kunio Nakajima ,  Manabu Oumi ,  Kenji Kato ,  Masataka Shinogi

发明人： Nobuyuki Kasama ,  Yasuyuki Mitsuoka ,  Norio Chiba ,  Takashi Niwa ,  Kunio Nakajima ,  Manabu Oumi ,  Kenji Kato ,  Masataka Shinogi

IPC分类号： G11B1300

CPC分类号： G11B7/122 ,  B82Y10/00 ,  G11B7/12 ,  G11B7/124 ,  G11B7/1387 ,  G11B7/22 ,  Y10S977/862

摘要： There is provided a near-field optical memory head for recording and/or reproducing information on a recording medium by utilizing near-field light which is a near-field optical memory head having a compact constitution and is suitable for mass production and array formation. According to the near-field optical memory head 11, in a planar substrate formed by penetrating at least one hole in a shape of an inverted pyramid such that a top portion thereof constitutes a very small aperture 4, a near-field light forming system for forming near-field light at a recording medium 1 and a near-field light detecting system for guiding propagating light 10 provided by interactively operating the formed near-field light with the very small aperture 4 to a light detecting element are integrated.

摘要翻译： 提供了一种近场光学存储头，用于通过利用近场光，其是具有紧凑结构的近场光学记忆头，并且适合于批量生产和阵列形成，在记录介质上记录和/或再现信息。 根据近场光学存储器头11，在通过穿透倒锥体形状的至少一个孔使得其顶部构成非常小的孔4而形成的平面基板中，形成近场光成像系统 在记录介质1处形成近场光，并且将用于引导通过将形成的近场光与极小孔4交互地操作而提供的传播光10的近场光检测系统集成在一起。

公开(公告)号：US5309523A

公开(公告)日：1994-05-03

申请号：US931893

申请日：1992-08-18

申请人： Tadao Iwaki ,  Yasuyuki Mitsuoka

发明人： Tadao Iwaki ,  Yasuyuki Mitsuoka

IPC分类号： G06E3/00 ,  G06K9/74 ,  G06F15/336 ,  G06K9/64

CPC分类号： G06K9/748 ,  G06E3/005

摘要： In a joint transform correlator utilizing a spatial optic modulator, depending on the light intensity of each correlation peak obtained from optical correlation processing between at least one reference image and at least one input image, the light intensity passing through each reference image corresponding to each correlation peak is substantially adjusted so as to constitute a feedback system. By such construction, when processing a relatively large number of input or reference images, the correlator can avoid failure of recognition due to the reduction of light intensity of the correlation peaks and can avoid erroneous recognition to enable fast pattern recognition.

摘要翻译： 在利用空间光学调制器的联合变换相关器中，根据从至少一个参考图像和至少一个输入图像之间的光学相关处理获得的每个相关峰值的光强度，通过对应于每个相关性的每个参考图像的光强度 基本上调整峰值以构成反馈系统。 通过这样的结构，当处理相对大量的输入或参考图像时，相关器可以避免由于相关峰值的光强度的降低导致的识别失败，并且可以避免错误识别以实现快速模式识别。

公开(公告)号：US5175775A

公开(公告)日：1992-12-29

申请号：US734275

申请日：1991-07-22

申请人： Tadao Iwaki ,  Yasuyuki Mitsuoka

发明人： Tadao Iwaki ,  Yasuyuki Mitsuoka

IPC分类号： G02B27/46 ,  G02F3/00 ,  G06K9/74 ,  G06T7/00

CPC分类号： G06K9/748

摘要： An optical pattern recognition method which can be applied to a joint transform correlator operative to effect correlation processing between a plurality of reference images and at least a single object image to produce correlation peaks corresponding to the respective reference images. The joint transform correlator is provided with a feedback system effective to regulate the intensity of the respective reference images according to the corresponding correlation peak value so as to noise-shape the correlation peaks to discriminate most-correlated reference images. The pattern recognition method is carried out in the correlator sequentially by first preparing a plurality of initial groups each containing a given number of individual reference images and carrying out the pattern recognition of the object image with respect to each of the initial groups to discriminate each of the most-associated reference images having a maximum correlation coefficient in each initial group. Next, the discriminated most-associated reference images are regrouped into new groups, the number of groups is less than that of the initial groups, and the pattern recognition of the object image with respect to the new groups is again carried out so as to enable next regrouping. Then, the regrouping is repeatedly carried out so as to reduce the number of the groups to thereby form a final group and carrying out the pattern recognition of the object image using the final group of reference images to thereby determine a particular reference image corresponding to the object image.

摘要翻译： 一种光学图案识别方法，其可以应用于联合变换相关器，其用于实现多个参考图像与至少一个对象图像之间的相关处理，以产生对应于各个参考图像的相关峰值。 联合变换相关器设置有反馈系统，其有效地根据对应的相关峰值来调节各个参考图像的强度，以便对相关峰值进行噪声形状以区分最相关的参考图像。 通过首先准备多个初始组，每个包含给定数量的各个参考图像并执行相对于每个初始组的对象图像的模式识别，分别在相关器中进行模式识别方法 最相关的参考图像在每个初始组中具有最大相关系数。 接下来，将所识别的最相关的参考图像重新分组为新组，组的数量小于初始组的组数，并且再次执行相对于新组的对象图像的模式识别，以便能够 下一次重组。 然后，重复进行重组，以便减少组的数量，从而形成最终组，并使用最终的参考图像组来执行对象图像的模式识别，从而确定对应于 对象图像。

公开(公告)号：US07630287B2

公开(公告)日：2009-12-08

申请号：US11502931

申请日：2006-08-11

申请人： Manabu Oumi ,  Nobuyuki Kasama ,  Hidetaka Maeda ,  Kenji Kato ,  Takashi Niwa ,  Yasuyuki Mitsuoka ,  Yoko Shinohara

发明人： Manabu Oumi ,  Nobuyuki Kasama ,  Hidetaka Maeda ,  Kenji Kato ,  Takashi Niwa ,  Yasuyuki Mitsuoka ,  Yoko Shinohara

IPC分类号： G11B7/00

CPC分类号： G11B7/122 ,  B82Y10/00 ,  G11B7/1387 ,  G11B7/22 ,  G11B7/24 ,  G11B7/26

摘要： The object of the present invention is to provide an information recording/reproduction device for implementing high-density information recording and reading using mutual interaction of a recording medium with near field light, and particularly to a near field optical head with a high optical efficiency and a manufacturing method thereof. This is achieved by enabling an energy propagation mechanism via a plasmon by forming a layer dispersed with metal particulate at a microscopic opening generating near field light, and therefore increase optical efficiency.

摘要翻译： 本发明的目的是提供一种使用记录介质与近场光的相互作用实现高密度信息记录和读取的信息记录/再现装置，特别是涉及具有高光学效率的近场光学头， 其制造方法。 这是通过在通过在靠近场光产生的微小开口处形成分散有金属颗粒的层而通过等离子体激元实现能量传播机制来实现的，因此提高了光学效率。

公开(公告)号：US07599277B1

公开(公告)日：2009-10-06

申请号：US09582903

申请日：1999-11-04

申请人： Kenji Kato ,  Takashi Niwa ,  Susumu Ichihara ,  Norio Chiba ,  Manabu Oumi ,  Nobuyuki Kasama ,  Yasuyuki Mitsuoka

发明人： Kenji Kato ,  Takashi Niwa ,  Susumu Ichihara ,  Norio Chiba ,  Manabu Oumi ,  Nobuyuki Kasama ,  Yasuyuki Mitsuoka

IPC分类号： G11B7/00

CPC分类号： G11B7/125 ,  G01Q80/00 ,  G02B6/4214 ,  G11B7/122 ,  G11B7/124 ,  G11B7/1362 ,  G11B7/1387 ,  G11B7/22 ,  G11B2007/13727

摘要： A near-field optical head has a planar substrate having a first surface, a second surface disposed opposite to the first surface, and an inverted conical or pyramidal hole extending through the first and second surfaces. The conical or pyramidal hole has at least one fine aperture formed at an apex thereof and is disposed on the first surface of the planar substrate. An optical waveguide is disposed on the second surface of the planar substrate for propagating light. A light reflection film is disposed in the optical waveguide for reflecting in the direction of the fine aperture light propagated through the optical waveguide.

摘要翻译： 近场光学头具有平面基板，其具有第一表面，与第一表面相对设置的第二表面和延伸穿过第一表面和第二表面的倒锥形或金字塔形孔。 锥形或锥形孔具有形成在其顶点处的至少一个细孔，并且设置在平面基板的第一表面上。 在平面基板的第二表面上设置光波导以传播光。 光反射膜设置在光波导中，用于沿着通过光波导传播的微小孔光的方向反射。

公开(公告)号：US07525880B1

公开(公告)日：2009-04-28

申请号：US09581602

申请日：1999-10-15

申请人： Manabu Oumi ,  Yasuyuki Mitsuoka ,  Norio Chiba ,  Nobuyuki Kasama ,  Kenji Kato ,  Takashi Niwa

发明人： Manabu Oumi ,  Yasuyuki Mitsuoka ,  Norio Chiba ,  Nobuyuki Kasama ,  Kenji Kato ,  Takashi Niwa

IPC分类号： G11B7/00

CPC分类号： B82Y10/00 ,  G11B7/0938 ,  G11B7/12 ,  G11B7/1387 ,  G11B7/24085

摘要： An information reproducing apparatus has a light source for generating linearly polarized light, a medium having linear marks disposed in overlapping relation to one another, and an optical head disposed between the light source and the medium and having a fine aperture. A polarized light control portion in the light source controls the linearly polarized light to pass through the fine aperture of the optical head to generate near-field light having a preselected polarization direction and to irradiate the linear marks of the medium with the near-field light so that the preselected polarization direction of the near-field light is orthogonal to a longitudinal axis of each of the linear marks. A detector detects light scattered by the linear mark irradiated with the near-field light.

摘要翻译： 信息重放装置具有用于产生线偏振光的光源，具有彼此重叠设置的线性标记的介质和设置在光源和介质之间并具有细孔的光头。 光源中的偏振光控制部分控制线偏振光通过光头的微小孔，以产生具有预选偏振方向的近场光，并用近场光照射介质的线性标记 使得近场光的预选极化方向与每个线性标记的纵向轴线正交。 检测器检测由近场光照射的线性标记散射的光。