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1. 发明授权

US09170562B2 Holographic memory device and reproduction/recording method 有权
标题翻译：全息记忆装置和再现/记录方法
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。

2. 发明授权

US08300511B2 Optical information record/reproduction apparatus and reproduction apparatus 有权
标题翻译：光信息记录/再现装置和再现装置
公开(公告)号：US08300511B2
公开(公告)日：2012-10-30
申请号：US13089837
申请日：2011-04-19
申请人： Kenichi Shimada , Toshiki Ishii , Taku Hoshizawa , Motoyuki Suzuki
发明人： Kenichi Shimada , Toshiki Ishii , Taku Hoshizawa , Motoyuki Suzuki
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。

3. 发明授权

US08228771B2 Optical disc recording apparatus and optical disc recording method 失效
标题翻译：光盘记录装置和光盘记录方法
公开(公告)号：US08228771B2
公开(公告)日：2012-07-24
申请号：US12056430
申请日：2008-03-27
申请人： Takuya Himi , Toshiki Ishii , Tsuyoshi Toda
发明人： Takuya Himi , Toshiki Ishii , Tsuyoshi Toda
IPC分类号： G11B11/00
CPC分类号： G11B20/182 , G11B7/00456 , G11B7/1267 , G11B27/36 , G11B2020/1275 , G11B2220/2537
摘要： In a recording/reproducing apparatus and a recording method, for enabling a high reliability on reproduction data are conducted the followings: recording a test mark within the test aria with a predetermined write strategy; obtaining signal amplitudes corresponding to a front portion, a middle portion, and a rear portion of the test mark, by reproducing the test mark; determining on whether the test mark has a desirable configuration or not, upon basis of at least one of ratios, defined between the amplitude of the front portion and the amplitude of the rear portion, and between the amplitude of the middle portion and the amplitude of the rear portion; correcting the write strategy if it is determined that the test mark has not the desirable configuration; and recording the information within the data area with the write strategy after the correction thereof.
摘要翻译：在记录/再现装置和记录方法中，为了能够在再现数据上实现高可靠性，进行以下操作：以预定的写入策略在测试咏叹调中记录测试标记; 通过再现测试标记获得对应于测试标记的前部，中间部分和后部的信号幅度; 基于在前部的振幅和后部的振幅之间以及在中间部分的振幅和振幅之间限定的比例中的至少一个之后，确定测试标记是否具有期望的配置后部; 如果确定测试标记没有期望的配置，则校正写入策略; 并在其修正之后用写入策略在数据区域内记录信息。

4. 发明申请

US20120050831A1 REPRODUCTION APPARATUS AND REPRODUCTION METHOD 有权
标题翻译：复制装置和再现方法
公开(公告)号：US20120050831A1
公开(公告)日：2012-03-01
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 , G03H1/22
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。

5. 发明申请

US20070121462A1 Optical disc apparatus and information recording method 审中-公开
标题翻译：光盘装置和信息记录方法
公开(公告)号：US20070121462A1
公开(公告)日：2007-05-31
申请号：US11488617
申请日：2006-07-19
申请人： Toshiki Ishii , Tsuyoshi Toda , Tetsuya Fushimi , Masashi Imai
发明人： Toshiki Ishii , Tsuyoshi Toda , Tetsuya Fushimi , Masashi Imai
IPC分类号： G11B7/0045
CPC分类号： G11B7/00456 , G11B7/1267
摘要： To provide a technology for improving the recording quality through edge correction of recording pulse in an optical disc apparatus. An optimum recording power of recording pulse is obtained through OPC processing according to a recording strategy with a first pulse timing; recording is performed by use of recording pulse with the optimum recording power; a first edge-shift amount of recording mark is measured from a reproduction signal to perform edge correction of recording pulse to form a second pulse timing of a recording strategy. Subsequently, recording is performed with pulse width variations of recording pulse to measure a second edge-shift amount of recording mark from a reproduction signal; and optimum edge positions of recording pulse are calculated based on the first edge-shift amount and the second edge-shift amount.
摘要翻译：提供通过光盘装置中的记录脉冲的边缘校正来提高记录质量的技术。通过根据具有第一脉冲定时的记录策略的OPC处理获得记录脉冲的最佳记录功率; 通过使用具有最佳记录功率的记录脉冲进行记录; 从再现信号测量记录标记的第一边缘移位量，以执行记录脉冲的边缘校正，以形成记录策略的第二脉冲定时。随后，利用记录脉冲的脉冲宽度变化执行记录，以从再现信号测量记录标记的第二边缘移位量; 并且基于第一边缘移位量和第二边缘移位量来计算记录脉冲的最佳边缘位置。

6. 发明申请

US20060280090A1 Optical disk recording method and an optical disk apparatus 失效
公开(公告)号：US20060280090A1
公开(公告)日：2006-12-14
申请号：US11290510
申请日：2005-12-01
申请人： Toshiki Ishii , Tsuyoshi Toda
发明人： Toshiki Ishii , Tsuyoshi Toda
IPC分类号： G11B5/09
CPC分类号： G11B7/126 , G11B7/00456 , G11B7/0079
摘要： In a CAV recording of an optical disk, when a plurality of zones are provided, a write strategy is matched for a change in recording linear velocity in the zone so that recording quality can be assured, and recording power is controlled. The write strategy (pulse timing and power ratio) is optimized at the highest recording linear velocity of each zone and the setting of the power in each zone is controlled so that a relation between a recording linear velocity V and a recording power Po satisfies Po=CV (C is a coefficient which is obtained from the relation between Po and V at a zone end point), thereby assuring the reliability of recorded information.

7. 发明申请

US20120188618A1 OPTICAL INFORMATION REPRODUCING METHOD AND OPTICAL INFORMATION REPRODUCING APPARATUS 审中-公开
标题翻译：光信息再现方法和光信息再现设备
公开(公告)号：US20120188618A1
公开(公告)日：2012-07-26
申请号：US13354357
申请日：2012-01-20
申请人： Toshiki ISHII , Kenichi Shimada
发明人： Toshiki ISHII , Kenichi Shimada
IPC分类号： G03H1/02
CPC分类号： G11B7/083 , G11B7/08564
摘要： An optical information reproducing method and apparatus using an angle-multiplex recording type holographic memory. An optical information recording medium is exposed to a reference beam, the intensity of a diffracted beam diffracted in the medium is detected by a photodetector, an error signal is generated based on a value obtained by differentiating the detected intensity of the diffracted beam based on an angle of the reference beam, so that a reference beam angle control element is subjected to a feedback control.
摘要翻译：一种使用角度复用记录型全息存储器的光学信息再现方法和装置。光信息记录介质暴露于参考光束，由光电检测器检测在介质中衍射的衍射光束的强度，基于通过对所检测的衍射光束的强度进行微分而产生的误差信号，该误差信号基于参考光束的角度，使得参考光束角度控制元件经受反馈控制。

8. 发明申请

US20110273754A1 HOLOGRAPHIC MEMORY DEVICE AND REPRODUCTION/RECORDING METHOD 有权
标题翻译：全息存储器和再现/记录方法
公开(公告)号：US20110273754A1
公开(公告)日：2011-11-10
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 , G03H1/04
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。

9. 发明授权

US07567490B2 Optical disk recording method and an optical disk apparatus 失效
标题翻译：光盘记录方法和光盘装置
公开(公告)号：US07567490B2
公开(公告)日：2009-07-28
申请号：US11290510
申请日：2005-12-01
申请人： Toshiki Ishii , Tsuyoshi Toda
发明人： Toshiki Ishii , Tsuyoshi Toda
IPC分类号： G11B5/09
CPC分类号： G11B7/126 , G11B7/00456 , G11B7/0079
摘要： In a CAV recording of an optical disk, when a plurality of zones are provided, a write strategy is matched for a change in recording linear velocity in the zone so that recording quality can be assured, and recording power is controlled. The write strategy (pulse timing and power ratio) is optimized at the highest recording linear velocity of each zone and the setting of the power in each zone is controlled so that a relation between a recording linear velocity V and a recording power Po satisfies Po=CV (C is a coefficient which is obtained from the relation between Po and V at a zone end point), thereby assuring the reliability of recorded information.
摘要翻译：在光盘的CAV记录中，当提供多个区域时，对该区域中记录线速度的变化进行匹配写入策略，从而可以确保记录质量，并且控制记录功率。写入策略（脉冲定时和功率比）在每个区域的最高记录线速度下被优化，并且控制每个区域中功率的设置，使得记录线速度V和记录功率Po之间的关系满足Po = CV（C是从区域终点处的Po和V之间的关系获得的系数），从而确保记录信息的可靠性。

10. 发明申请

US20090028020A1 Optical disk device and control method for the same 有权
标题翻译：光盘装置及其控制方法相同
公开(公告)号：US20090028020A1
公开(公告)日：2009-01-29
申请号：US12080138
申请日：2008-03-31
申请人： Tsuyoshi Toda , Toshiki Ishii
发明人： Tsuyoshi Toda , Toshiki Ishii
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0908
摘要： Provided is an optical disk device capable of recording and/or reproducing information on optical disks with high reliability; and a method for controlling the optical disk device. The position of an optical lens where the amplitude of a reproduction signal during the period corresponding to a minimum-length recording mark and a space having the same length reaches its maximum is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control. Also, the position of the objective lens where the result of multiplication of resolution and modulation becomes greatest is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control.
摘要翻译：提供了能够以高可靠性在光盘上记录和/或再现信息的光盘装置; 以及控制光盘装置的方法。检测在与最小长度记录标记相对应的时段期间的再现信号的幅度和具有相同长度的空间达到其最大值的光学透镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。此外，检测分辨率和调制的乘法结果变得最大的物镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。

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