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1.发明申请公开(公告)号：US20110280112A1
公开(公告)日：2011-11-17
申请号：US13088462
申请日：2011-04-18
申请人： Yusuke NAKAMURA , Kenichi Shimada , Toshiki Ishii , Makoto Hosaka
发明人： Yusuke NAKAMURA , Kenichi Shimada , Toshiki Ishii , Makoto Hosaka
IPC分类号： G11B7/135
CPC分类号： G11B7/0065 , G11B7/08564
摘要： In an optical information reproduction method for reproducing information using holography from a medium which records an interference pattern generated when overlapping a signal beam and a reference beam, the reference beam is radiated to the medium at a reference beam angle with a predetermined range for reproducing the information, a reproduction beam is generated by diffracting the reference beam with the interference pattern, the reproduction beam is detected by a photodetector; and the information is reproduced by processing a signal detected by the photodetector.
摘要翻译： 在用于从记录在信号光束和参考光束重叠时产生的干涉图案的介质中再现使用全息术的信息的光学信息再现方法中，参考光束以具有预定范围的参考光束角辐射到介质，以再现 信息，通过用干涉图案衍射参考光束来生成再现光束，再现光束由光电检测器检测; 并且通过处理由光电检测器检测的信号来再现信息。
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2.发明授权公开(公告)号：US08520484B2
公开(公告)日：2013-08-27
申请号：US13088462
申请日：2011-04-18
申请人： Yusuke Nakamura , Kenichi Shimada , Toshiki Ishii , Makoto Hosaka
发明人： Yusuke Nakamura , Kenichi Shimada , Toshiki Ishii , Makoto Hosaka
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G11B7/08564
摘要： In an optical information reproduction method for reproducing information using holography from a medium which records an interference pattern generated when overlapping a signal beam and a reference beam, the reference beam is radiated to the medium at a reference beam angle with a predetermined range for reproducing the information, a reproduction beam is generated by diffracting the reference beam with the interference pattern, the reproduction beam is detected by a photodetector; and the information is reproduced by processing a signal detected by the photodetector.
摘要翻译： 在用于从记录在信号光束和参考光束重叠时产生的干涉图案的介质中再现使用全息术的信息的光学信息再现方法中，参考光束以具有预定范围的参考光束角辐射到介质，以再现 信息，通过用干涉图案衍射参考光束来生成再现光束，再现光束由光电检测器检测; 并且通过处理由光电检测器检测的信号来再现信息。
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公开(公告)号：US08335147B2
公开(公告)日：2012-12-18
申请号：US13086421
申请日：2011-04-14
申请人： Toshiki Ishii , Kenichi Shimada , Yusuke Nakamura
发明人： Toshiki Ishii , Kenichi Shimada , Yusuke Nakamura
IPC分类号： G11B7/00
CPC分类号： G11B7/00772 , G11B7/08564
摘要： In case of reproducing a hologram recorded on an optical information recording medium, adjusting beam with the amplitude distribution and phase distribution at least partially the same as those of a signal beam upon recording is radiated to the optical information recording medium which records information. The diffracting beam diffracted by the hologram is detected by a photodetector. Based on the detected information, an incident angle of the reference beam to the optical information recording medium is appropriately controlled.
摘要翻译： 在再现记录在光学信息记录介质上的全息图的情况下，在记录信息的光学信息记录介质中照射具有与记录时的信号光束的幅度分布和相位分布至少部分相同的调整光束。 由全息图衍射的衍射光束由光电检测器检测。 基于检测到的信息，适当地控制参考光束对光信息记录介质的入射角度。
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4.发明授权公开(公告)号：US08908487B2
公开(公告)日：2014-12-09
申请号：US13305797
申请日：2011-11-29
申请人： Makoto Hosaka , Toshiki Ishii
发明人： Makoto Hosaka , Toshiki Ishii
IPC分类号： G11B7/0065 , G11B7/007
CPC分类号： G11B7/0065 , G11B7/00772 , G11B2220/2504
摘要： In reproduction of a two-dimensional page data from an optical information recording medium utilizing holography, a reproduced two-dimensional page data is divided into a plurality of areas each of which has a predetermined size, the divided two-dimensional areas are individually subjected to adaptive equalizing, and then are coupled to restore the condition of the original two-dimensional page data.
摘要翻译： 在从利用全息术的光学信息记录介质再现二维页面数据时，再现的二维页面数据被分成多个区域，每个区域都具有预定的尺寸，分割的二维区域分别经受 自适应均衡，然后耦合以恢复原始二维页面数据的条件。
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5.发明授权Signal quality evaluating apparatus and method, and information recording medium 有权信号质量评估装置和方法以及信息记录介质公开(公告)号：US08184514B2
公开(公告)日：2012-05-22
申请号：US12612029
申请日：2009-11-04
申请人： Toshiki Ishii , Kenichi Shimada
发明人： Toshiki Ishii , Kenichi Shimada
IPC分类号： G11B7/00
CPC分类号： G11B7/083 , G11B7/0065
摘要： A signal quality evaluating method necessary for a signal quality evaluation index and a margin design is provided for an apparatus utilizing hologram recording techniques. An evaluation index is used being obtained by dividing root sum square of standard deviations of luminance value distribution of on- and off-pixels obtained from reproduced signals, by a difference between average values.
摘要翻译： 对于使用全息图记录技术的装置，提供信号质量评价指标和边缘设计所需的信号质量评估方法。 通过将由再现信号获得的开启和关闭像素的亮度值分布的标准偏差的总和平均除以平均值之间的差来获得评估指标。
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公开(公告)号：US09170562B2
公开(公告)日：2015-10-27
申请号：US13093896
申请日：2011-04-26
申请人： Kenichi Shimada , Toshiki Ishii
发明人： Kenichi Shimada , Toshiki Ishii
IPC分类号： G03H1/12 , G03H1/22 , G11B7/1369 , G11B7/1392 , G11B7/0065
CPC分类号： G03H1/12 , G03H1/22 , G03H1/2286 , G03H2222/35 , G03H2222/56 , G11B7/0065 , G11B7/1369 , G11B7/13927
摘要： An optical beam with the same amplitude distribution and phase distribution as those of the signal beam used for recording is radiated to the hologram recording medium via an optical system of the signal beam prior to reproduction so that the optical beam with the amplitude and phase of the reference beam upon recording is generated through diffraction. A wavefront sensor detects the wavefront configuration of the diffraction beam and obtains preliminarily the suitable wavefront of the reference beam for reproduction. The wavefront control element preliminarily corrects the wavefront of the reference beam to an optimum wavefront.
摘要翻译： 具有与用于记录的信号光束相同的幅度分布和相位分布的光束在再现之前通过信号光束的光学系统被辐射到全息图记录介质，使得具有幅度和相位的光束 通过衍射产生记录时的参考光束。 波前传感器检测衍射光束的波阵面，并预先获得用于再现的参考光束的合适波阵面。 波前控制元件预先将参考光束的波前校正到最佳波前。
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7.发明授权公开(公告)号：US08300511B2
公开(公告)日：2012-10-30
申请号：US13089837
申请日：2011-04-19
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G03H1/26 , G11B7/00772 , G11B7/083 , G11B7/08564 , G11B7/128
摘要： A holographic memory apparatus comprises first phase modulation means that adds phase information to each pixel of a signal beam to generate page data at recording time; oscillator light generation means that generates an oscillator light that is superimposed on, and interferes with, a diffracted light from a holographic recording medium at reproduction time; second phase modulation means that adds phase information to the oscillator light; and light detection means that detects an interference light generated by superimposing the oscillator light and the diffracted light from the holographic recording medium.
摘要翻译： 全息存储装置包括第一相位调制装置，其将相位信息添加到信号光束的每个像素，以在记录时间产生页数据; 振荡光产生装置，其在再现时产生叠加在来自全息记录介质的衍射光并与之干涉的振荡光; 将相位信息加到振荡器光的第二相位调制装置; 以及光检测装置，其检测通过叠加振荡光和来自全息记录介质的衍射光产生的干涉光。
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公开(公告)号：US09105280B2
公开(公告)日：2015-08-11
申请号：US13085870
申请日：2011-04-13
申请人： Kenichi Shimada , Toshiki Ishii , Motoyuki Suzuki
发明人： Kenichi Shimada , Toshiki Ishii , Motoyuki Suzuki
IPC分类号： G03H1/26 , G11B7/08 , G11B7/0065
CPC分类号： G11B7/083 , G03H1/26 , G11B7/0065
摘要： In a holographic memory of an angle multiple recording system, when a hologram is reproduced, a light beam of a different polarizing direction is irradiated as reference light to a hologram recording medium and diffracted light is detected from the hologram recording medium.
摘要翻译： 在角度多重记录系统的全息存储器中，当再现全息图时，将不同偏振方向的光束作为参考光照射到全息图记录介质上，并从全息图记录介质检测衍射光。
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9.发明申请公开(公告)号：US20120026856A1
公开(公告)日：2012-02-02
申请号：US13089837
申请日：2011-04-19
IPC分类号： G11B7/0065
CPC分类号： G11B7/0065 , G03H1/26 , G11B7/00772 , G11B7/083 , G11B7/08564 , G11B7/128
摘要： A holographic memory apparatus comprises first phase modulation means that adds phase information to each pixel of a signal beam to generate page data at recording time; oscillator light generation means that generates an oscillator light that is superimposed on, and interferes with, a diffracted light from a holographic recording medium at reproduction time; second phase modulation means that adds phase information to the oscillator light; and light detection means that detects an interference light generated by superimposing the oscillator light and the diffracted light from the holographic recording medium.
摘要翻译： 全息存储装置包括第一相位调制装置，其将相位信息添加到信号光束的每个像素，以在记录时间产生页数据; 振荡光产生装置，其在再现时产生叠加在来自全息记录介质的衍射光并与之干涉的振荡光; 将相位信息加到振荡器光的第二相位调制装置; 以及光检测装置，其检测通过叠加振荡光和来自全息记录介质的衍射光产生的干涉光。
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10.发明申请SIGNAL QUALITY EVALUATING APPARATUS AND METHOD, AND INFORMATION RECORDING MEDIUM 有权信号质量评估装置和方法以及信息记录介质公开(公告)号：US20100220570A1
公开(公告)日：2010-09-02
申请号：US12612029
申请日：2009-11-04
申请人： Toshiki Ishii , Kenichi Shimada
发明人： Toshiki Ishii , Kenichi Shimada
IPC分类号： G11B27/36
CPC分类号： G11B7/083 , G11B7/0065
摘要： A signal quality evaluating method necessary for a signal quality evaluation index and a margin design is provided for an apparatus utilizing hologram recording techniques. An evaluation index is used being obtained by dividing root sum square of standard deviations of luminance value distribution of on- and off-pixels obtained from reproduced signals, by a difference between average values.
摘要翻译： 对于使用全息图记录技术的装置，提供信号质量评价指标和边缘设计所需的信号质量评估方法。 通过将由再现信号获得的开启和关闭像素的亮度值分布的标准偏差的总和平均除以平均值之间的差来获得评估指标。
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