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1. 发明授权

US06940801B1 Optical recording medium, optical recording and reproducing method and apparatus 失效
标题翻译：光学记录介质，光学记录和再现方法和装置
公开(公告)号：US06940801B1
公开(公告)日：2005-09-06
申请号：US09181809
申请日：1998-10-29
申请人： Tsutomu Ishii , Katsunori Kawano , Kazuo Baba , Kiichi Ueyanagi
发明人： Tsutomu Ishii , Katsunori Kawano , Kazuo Baba , Kiichi Ueyanagi
IPC分类号： G11B7/00 , G11B7/12 , G11B7/135
CPC分类号： G11B7/2467 , G11B7/0045 , G11B7/005 , G11B7/12 , G11B7/1398 , G11B7/2403 , G11B7/24088 , G11B7/245 , G11B7/25 , G11B7/2531 , G11B7/2533 , G11B7/2585
摘要： An optical recording medium, an optical recording and reproducing method, and an apparatus that can record and reproduce multilevel information at a high density and with a high S/N ratio. Recording light emitted from a light source is collimated by a collimation lens and introduced into a polarization rotary device. Recording light transmitted by the polarization rotary device is focused by an objective lens onto an optical recording medium. In response, a photo-induced birefringence is recorded on the optical recording medium. Multilevel recording is performed by controlling a voltage applied to the polarization rotary device to change a polarization angle θ of recording light. Reproduction is performed by detecting light reflected from the optical recording medium with an analyzer and a detector.
摘要翻译：光学记录介质，光学记录和再现方法以及能够以高密度和高S / N比记录和再现多级信息的装置。记录从光源发出的光被准直透镜准直并被引入偏振旋转装置。由偏光旋转装置传输的记录光被物镜聚焦在光记录介质上。作为响应，在光学记录介质上记录光致双折射。通过控制施加到偏振旋转装置的电压来改变记录光的偏振角θ来执行多级记录。通过用分析仪和检测器检测从光记录介质反射的光来进行再现。

2. 发明授权

US06317404B1 Optical recording method and optical recording apparatus 失效
标题翻译：光记录方法和光记录装置
公开(公告)号：US06317404B1
公开(公告)日：2001-11-13
申请号：US09366346
申请日：1999-08-02
申请人： Katsunori Kawano , Mitsuhiro Ishibe , Tsutomu Ishii , Takehiro Niitsu , Kazuo Baba
发明人： Katsunori Kawano , Mitsuhiro Ishibe , Tsutomu Ishii , Takehiro Niitsu , Kazuo Baba
IPC分类号： G11B700
CPC分类号： G11B7/0065 , G03H1/0465 , G11C13/042
摘要： Binary two-dimensional digital data can be recorded in an optical recording medium as holograms in such a way that a recording area is made sufficiently minute correspondingly to the two-dimensional digital data by adequately limiting the spread of signal light and reference light without causing loss of the data and a read error during reconstructing. Signal light of a binary two-dimensional digital data image is subjected to Fourier transform by a lens. There is disposed forwardly of an optical recording medium a shading material having a circular, semicircular, sectorial, or L-shape light transmission part 21 that allows transmission of only components of 0th to n-th (n=1, 2, or 3) orders. The signal light after Fourier transform and reference light are transmitted through the light transmission part 21 for irradiation to the optical recording medium and a Fourier transform hologram is recorded in the optical recording medium.
摘要翻译：二维二维数字数据可以作为全息图记录在光记录介质中，使得通过适当地限制信号光和参考光的扩展而不会造成损失，从而对二维数字数据进行足够微小的记录区域的数据和重建期间的读取错误。二进制二维数字数据图像的信号光通过透镜进行傅里叶变换。向光学记录介质前方配置有具有圆形，半圆形，扇形或L形光透射部分21的遮光材料，该透光部件允许仅传输第0至第n（n = 1,2或3）的分量，命令。傅立叶变换后的信号光和基准光通过光传输部21透射，照射到光记录介质上，傅里叶变换全息图记录在光记录介质中。

3. 发明授权

US06285474B1 Holographic recording method and filtering method 失效
标题翻译：全息记录方法和过滤方法
公开(公告)号：US06285474B1
公开(公告)日：2001-09-04
申请号：US09577842
申请日：2000-05-25
申请人： Katsunori Kawano , Jiro Minabe , Takehiro Niitsu , Tsutomu Ishii , Yasunari Nishikata , Kazuo Baba
发明人： Katsunori Kawano , Jiro Minabe , Takehiro Niitsu , Tsutomu Ishii , Yasunari Nishikata , Kazuo Baba
IPC分类号： G03H116
CPC分类号： G03H1/00 , G03H2222/31 , G06K9/76
摘要： A method and an apparatus capable of filtering based on desired spatial frequency characteristics without loss of Fourier spectrum frequency components, and of matched filtering of high recognition capability without losing functions of data recording and reconstruction as well as high-speed transmission and retrieval features and mass storage capacity characteristic of a holographic memory. Fourier transformed object light with 0° polarization of a target image is stored as a hologram using reference light having a spatial polarization distribution such that a daughter wavelet on scale m has 90° polarization. The hologram is retrieved using the Fourier transformed object light with 0° polarization. The hologram yields diffracted light in the form of a spatial frequency component which corresponds to scale m and is polarized 90° with respect to the other spatial frequency components. A polarizing element is used to extract only the spatial frequency component corresponding to scale m. Given reference light having a spatial polarization distribution in conformity with a shape of a spatial frequency filter, retrieval light of 0° polarization is applied for low-pass and high-pass filtering upon reconstruction.
摘要翻译：一种能够基于期望的空间频率特性进行滤波而不损失傅里叶谱频率分量的方法和装置，并且具有高识别能力的匹配滤波，而不失去数据记录和重建的功能，以及高速传输和检索特征和质量全息存储器的存储容量特性。使用具有空间极化分布的参考光，使得尺度为m的子小波具有90°偏振，将目标图像的0°偏振的傅里叶变换物体光存储为全息图。使用具有0°极化的傅里叶变换的物体光来检索全息图。全息图以空间频率分量的形式产生衍射光，其对应于刻度m并且相对于其它空间频率分量偏振90°。偏振元件用于仅提取与刻度m对应的空间频率分量。给定具有与空间频率滤波器的形状一致的空间极化分布的参考光，在重建时将0°偏振的检索光应用于低通和高通滤波。

4. 发明授权

US06525879B1 Optical filtering apparatus and method 失效
标题翻译：光学过滤装置及方法
公开(公告)号：US06525879B1
公开(公告)日：2003-02-25
申请号：US09577827
申请日：2000-05-25
申请人： Katsunori Kawano , Jiro Minabe , Takehiko Niitsu , Tsutomu Ishii , Yasunari Nishikata , Kazuo Baba
发明人： Katsunori Kawano , Jiro Minabe , Takehiko Niitsu , Tsutomu Ishii , Yasunari Nishikata , Kazuo Baba
IPC分类号： G02B2744
CPC分类号： G02B27/46 , Y10S359/90
摘要： An optical filtering apparatus and method, wherein at least one polarizer is located in the path of radiation passing through a birefringent medium. The invention can be used to process complementary bands of spatial frequency spectra. The invention can be practiced using a polarizing beam splitter. The invention can also be practiced using an optical storage layer forming part of the birefringent medium.
摘要翻译：一种光学滤波装置和方法，其中至少一个偏振器位于穿过双折射介质的辐射路径中。本发明可用于处理空间频谱的互补带。本发明可以使用偏振分束器来实现。本发明也可以使用形成双折射介质的一部分的光学存储层来实现。

5. 发明授权

US06512733B1 Optical recording method, optical recording apparatus, optical reading method, and optical reading apparatus 失效
标题翻译：光学记录方法，光学记录装置，光学读取方法和光学读取装置
公开(公告)号：US06512733B1
公开(公告)日：2003-01-28
申请号：US09385034
申请日：1999-08-30
申请人： Katsunori Kawano , Tsutomu Ishii , Kazuo Baba
发明人： Katsunori Kawano , Tsutomu Ishii , Kazuo Baba
IPC分类号： G11B700
CPC分类号： G11B7/24085 , G11B7/128 , G11B7/1369 , G11B7/244 , G11B7/245 , G11B7/25
摘要： The present invention provides an optical recording method, optical recording apparatus, optical reading method, and optical reading apparatus which are capable of high density recording an d high speed recording, and high speed reading. In recording, a recording light comprising a plurality of polarization distributions corresponding to the data information; is generated, and irradiated onto an optical recording medium to thereby record a plurality of polarization distributions of the recording light on the optical recording medium as photo-induced birefringence. In reading, a reading light having a uniform polarization distribution is irradiated onto the recording medium in which the data information has been recorded previously, and the polarization distribution of the transmitted light or reflected light in the optical recording medium is read as the polarization distribution of the reproducing light.
摘要翻译：本发明提供能够高密度记录高速记录和高速读取的光学记录方法，光学记录装置，光学读取方法和光学读取装置。在记录中，记录光包括对应于数据信息的多个偏振分布; 并且照射到光学记录介质上，从而将记录光的多个偏振分布记录在光学记录介质上作为光致双折射。在读取中，将具有均匀偏振分布的读取光照射到其中已经记录了数据信息的记录介质上，并且将光学记录介质中的透射光或反射光的偏振分布读取为再现光。

6. 发明授权

US07064875B2 Optical recording apparatus and optical recording/reproducing apparatus 失效
标题翻译：光记录装置和光记录/再现装置
公开(公告)号：US07064875B2
公开(公告)日：2006-06-20
申请号：US10660485
申请日：2003-09-12
申请人： Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Norie Matsui , Tsutomu Ishii , Kazuhiro Hama
发明人： Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Norie Matsui , Tsutomu Ishii , Kazuhiro Hama
IPC分类号： G03H1/12
CPC分类号： G11B7/245 , G03H2222/31 , G11B7/0065 , G11B7/128 , G11B7/1353 , G11B7/1356 , G11B7/1369 , G11B7/2467 , G11B7/25 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2535
摘要： An optical recording/reproducing apparatus having excellent resistance against vibration and noise is provided. In recording, coherent light is polarization-modulated with a spatial light modulator to generate signal light and reference light whose polarization directions are crossed at right angles with each other. The signal light permeates a polarizing beam splitter, and is incident to a quarter wavelength plate. The reference light passes through a passing hole, is diffused by a light diffuser and is incident to the quarter wavelength plate. The reference and signal light are converted into circularly polarized light which revolve in directions opposite to each other and condensed by a condenser lens, and then a predetermined area of an optical recording medium is irradiated with the reference and signal light. Thus, the reference and signal light are generated by modulating the incident light from the same light source and are coaxially incident to the polarizing beam splitter.
摘要翻译：提供具有优异的抗振动和噪声的光学记录/重放装置。在记录中，相干光利用空间光调制器进行偏振调制，以产生信号光和偏振方向相互交叉的参考光。信号光透过偏振分束器，并入射到四分之一波长板上。参考光通过通孔，被光扩散器扩散并入射到四分之一波长板。参考信号光和信号光被转换为以相反方向旋转并由聚光透镜聚光的圆偏振光，然后用参考信号光照射光记录介质的预定区域。因此，通过调制来自相同光源的入射光并同轴地入射到偏振分束器来产生参考信号光和信号光。

7. 发明授权

US06452890B2 Optical storage medium, optical storage method, optical reading method, optical reading apparatus, optical retrieving method and optical retrieving apparatus 失效
标题翻译：光存储介质，光存储方法，光学读取方法，光学读取装置，光学检索方法和光学检索装置
公开(公告)号：US06452890B2
公开(公告)日：2002-09-17
申请号：US09056798
申请日：1998-04-08
申请人： Katsunori Kawano , Yasunari Nishikata , Tsutomu Ishii
发明人： Katsunori Kawano , Yasunari Nishikata , Tsutomu Ishii
IPC分类号： G11B700
CPC分类号： G11B7/128 , G11B7/006 , G11B7/0065 , G11B7/24 , G11B7/245 , G11B7/25
摘要： An optical storage medium of the present invention enables storage of data with high precision at high speed, and rewriting of data at high speed without an erasing process. Optical storage, reading and retrieving methods and optical storage, reading, and retrieving apparatuses using the medium are also provided. The optical storage medium has at least a polarization-sensitive member having the photo-induced birefringence property, such as a member made of polyester polymer having cyanoazobenzene as a side chain. The above apparatuses have spatial light modulator capable of modulating polarization. The modulator provides information of bit of two-dimensional data to each corresponding pixel by application or non-application of a voltage, and modulates the polarization of the beam incident on each pixel. Thereby, a signal beam transmitted through the spatial light modulator having a spatial polarization modulation corresponding to the two-dimensional data is obtained. The signal beam illuminates the optical storage medium, and at the same time, a reference beam illuminates the same region in the medium where the signal beam illuminates. Thus a hologram of the polarization modulation of the signal beam corresponding to the two-dimensional data is stored in the optical storage medium.
摘要翻译：本发明的光存储介质可以高速度地高精度地存储数据，并且无需擦除处理即可高速重写数据。还提供光存储，读取和检索方法以及使用介质的光学存储，读取和检索设备。光学存储介质至少具有光诱导双折射性的偏振敏感元件，例如由具有氰基偶氮苯作为侧链的聚酯聚合物制成的部件。上述装置具有能够调制偏振的空间光调制器。调制器通过应用或不施加电压向每个对应的像素提供二维数据位的信息，并且调制入射在每个像素上的光束的偏振。由此，获得透过具有与二维数据对应的空间偏振调制的空间光调制器的信号光束。信号光束照射光学存储介质，同时参考光束照射信号光束照射的介质中的相同区域。因此，对应于二维数据的信号光束的偏振调制的全息图被存储在光学存储介质中。

8. 发明授权

US07666473B2 Optical recording medium and method for producing such an optical recording medium 失效
标题翻译：光记录媒体及其制造方法
公开(公告)号：US07666473B2
公开(公告)日：2010-02-23
申请号：US11291912
申请日：2005-12-02
申请人： Matsui Norie , Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Kazuhiro Hama , Tsutomu Ishii
发明人： Matsui Norie , Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Kazuhiro Hama , Tsutomu Ishii
IPC分类号： B05D3/12 , B05D1/38
CPC分类号： G11B7/266 , G03H2001/0264 , G03H2001/2615 , G03H2260/12 , G11B7/245 , G11B2007/0009 , G11B2007/0013 , Y10S359/90
摘要： The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a photo-isomerizable component, a second coating solution that contains a photo-isomerizable component that can be isomerized by radiation having the same wavelength as radiation used for isomerizing the photo-isomerizable component contained in the recording layer and incapable of dissolving the recording layer is spin-coated to form an intermediate layer. Since the intermediate layer thus formed cannot be dissolved by the first coating solution, a recording layer is further laminated on this layer. Thus, it becomes possible to make the recording layer thicker and also to provide a high-density recording characteristic.
摘要翻译：本发明涉及一种光记录介质的制造方法。在该方法中，在通过旋涂含有光可异构化组分的第一涂布溶液形成的记录层的表面上，含有可通过与辐射相同波长的辐射异构化的光可异构化组分的第二涂层溶液用于异构化包含在记录层中并且不能溶解记录层的光可异构化组分被旋涂以形成中间层。由于如此形成的中间层不能被第一涂布溶液溶解，所以在该层上进一步层压记录层。因此，可以使记录层更厚并且还提供高密度记录特性。

9. 发明授权

US07034970B2 Optical recording medium and method for producing such an optical recording medium 失效
标题翻译：光记录媒体及其制造方法
公开(公告)号：US07034970B2
公开(公告)日：2006-04-25
申请号：US10657147
申请日：2003-09-09
申请人： Norie Matsui , Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Kazuhiro Hama , Tsutomu Ishii
发明人： Norie Matsui , Katsunori Kawano , Jiro Minabe , Tatsuya Maruyama , Shin Yasuda , Kazuhiro Hama , Tsutomu Ishii
IPC分类号： G03H1/04
CPC分类号： G11B7/266 , G03H2001/0264 , G03H2001/2615 , G03H2260/12 , G11B7/245 , G11B2007/0009 , G11B2007/0013 , Y10S359/90
摘要： The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a photo-isomerizable component, a second coating solution that contains a photo-isomerizable component that can be isomerized by radiation having the same wavelength as radiation used for isomerizing the photo-isomerizable component contained in the recording layer and incapable of dissolving the recording layer is spin-coated to form an intermediate layer. Since the intermediate layer thus formed cannot be dissolved by the first coating solution, a recording layer is further laminated on this layer. Thus, it becomes possible to make the recording layer thicker and also to provide a high-density recording characteristic.
摘要翻译：本发明涉及一种光记录介质的制造方法。在该方法中，在通过旋涂含有光可异构化组分的第一涂布溶液形成的记录层的表面上，含有可通过与辐射相同波长的辐射异构化的光可异构化组分的第二涂层溶液用于异构化包含在记录层中并且不能溶解记录层的光可异构化组分被旋涂以形成中间层。由于如此形成的中间层不能被第一涂布溶液溶解，所以在该层上进一步层压记录层。因此，可以使记录层更厚并且还提供高密度记录特性。

10. 发明授权

US06803153B1 Optical storage medium, optical storage method; optical storage apparatus, optical reading method, optical reading apparatus, optical retrieving method and optical retrieving apparatus 失效
标题翻译：光存储介质，光存储方式; 光学存储装置，光学读取方法，光学读取装置，光学检索方法和光学检索装置
公开(公告)号：US06803153B1
公开(公告)日：2004-10-12
申请号：US09708498
申请日：2000-11-09
申请人： Katsunori Kawano , Yasunari Nishikata , Tsutomu Ishii
发明人： Katsunori Kawano , Yasunari Nishikata , Tsutomu Ishii
IPC分类号： G03H110
CPC分类号： G11B7/128 , G11B7/006 , G11B7/24 , G11B7/245 , G11B7/25
摘要： An optical storage medium of the present invention enables storage of data with high precision at high speed, and rewriting of data at high speed without an erasing process. Optical storage, reading and retrieving methods and optical storage, reading, and retrieving apparatuses using the medium are also provided. The optical storage medium has at least a polarization-sensitive member having the photo-induced birefringence property, such as a member made of polyester polymer having cyanoazobenzene as a side chain. The above apparatuses have spatial light modulator capable of modulating polarization. The modulator provides information of bit of two-dimensional data to each corresponding pixel by application or non-application of a voltage, and modulates the polarization of the beam incident on each pixel. Thereby, a signal beam transmitted through the spatial light modulator having a spatial polarization modulation corresponding to the two-dimensional data is obtained. The signal beam illuminates the optical storage medium, and at the same time, a reference beam illuminates the same region in the medium where the signal beam illuminates. Thus a hologram of the polarization modulation of the signal beam corresponding to the two-dimensional data is stored in the optical storage medium.
摘要翻译：本发明的光存储介质可以高速度地高精度地存储数据，并且无需擦除处理即可高速重写数据。还提供光存储，读取和检索方法以及使用介质的光学存储，读取和检索设备。光学存储介质至少具有光诱导双折射性的偏振敏感元件，例如由具有氰基偶氮苯作为侧链的聚酯聚合物制成的部件。上述装置具有能够调制偏振的空间光调制器。调制器通过应用或不施加电压向每个对应的像素提供二维数据位的信息，并且调制入射在每个像素上的光束的偏振。由此，获得透过具有与二维数据对应的空间偏振调制的空间光调制器的信号光束。信号光束照射光学存储介质，同时参考光束照射信号光束照射的介质中的相同区域。因此，对应于二维数据的信号光束的偏振调制的全息图被存储在光学存储介质中。

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