公开(公告)号：US20090244756A1

公开(公告)日：2009-10-01

申请号：US12409636

申请日：2009-03-24

申请人： Akihiro Itakura ,  Toshikazu Kanaoka

发明人： Akihiro Itakura ,  Toshikazu Kanaoka

IPC分类号： G11B27/36 ,  G11B15/18

CPC分类号： G11B5/59688 ,  G11B5/5526

摘要： A data storage apparatus includes: a medium for storing data having synchronization marks and data blocks, the synchronization mark and the data block being allocated alternately in the circumference direction of the medium; a head writing data into or reading out data from the medium; and a processor for executing a process including: reading out synchronization marks, measuring time for the head to pass through each of the data blocks based on signals read out from each of the synchronization marks in the circumference direction, generating write/read clock for each of the data blocks, which is continuously changing in speed, by calculating difference in time for the head to pass through the each one of the data blocks and its adjacent one of the blocks on the basis of the time measured, and writing data into or reading out data from the medium in synchronization with the write/read clock.

摘要翻译： 数据存储装置包括：用于存储具有同步标记和数据块的数据的介质，所述同步标记和所述数据块在所述介质的圆周方向上交替地分配; 将数据写入或从介质读出数据的头; 以及用于执行处理的处理器，包括：读出同步标记，根据从圆周方向上的每个同步标记读出的信号测量头部经过每个数据块的时间，为每个数据块生成写入/读取时钟 通过根据测量的时间计算头部经过数据块和其相邻块之一的每一个数据块的时间差，并将数据写入或 与写/读时钟同步从介质读出数据。

公开(公告)号：US07518974B2

公开(公告)日：2009-04-14

申请号：US11342835

申请日：2006-01-31

申请人： Yuzuru Yamakage ,  Toshikazu Kanaoka ,  Akiyoshi Uchida ,  Kazushi Uno ,  Hiroyasu Yoshikawa

发明人： Yuzuru Yamakage ,  Toshikazu Kanaoka ,  Akiyoshi Uchida ,  Kazushi Uno ,  Hiroyasu Yoshikawa

IPC分类号： G11B7/00

CPC分类号： G11B7/00772 ,  G11B7/0065 ,  G11B7/1392

摘要： A recording and reproducing apparatus includes a light source to emit a laser beam, an information light beam irradiation unit to irradiate a medium with an information light beam, a reference light beam irradiation unit to irradiate the medium with a reference light beam so as to form a specific speckle pattern on the medium. The reference light beam irradiation unit comprises a diffusion board provided in the way of a light path through which the laser beam is passed and generating the reference light beam, a rotation controller to rotate the diffusion board, and an identification information detector to detect identification information previously formed on a surface of the diffusion board. The diffusion board comprises a plurality of encode storage regions in which different identification information is formed and a plurality of diffusion pattern generation regions specified by the identification information. A position of the diffusion board is controlled based on the detected identification information such that a desired diffusion pattern generation region comes to a position through which the laser beam is passed while the laser beam is outputted.

摘要翻译： 记录和再现装置包括发射激光束的光源，用信息光束照射介质的信息光束照射单元，参考光束照射单元，用参考光束照射介质以形成 介质上的特定斑点图案。 参考光束照射单元包括设置在激光束通过的光路的方式并产生参考光束的扩散板，旋转扩散板的旋转控制器和识别信息检测器，以检测识别信息 预先形成在扩散板的表面上。 扩散板包括形成有不同识别信息的多个编码存储区域和由识别信息指定的多个扩散图案生成区域。 基于检测到的识别信息来控制扩散板的位置，使得期望的扩散图案生成区域到达激光束输出的激光束通过的位置。

公开(公告)号：US07468941B2

公开(公告)日：2008-12-23

申请号：US11196055

申请日：2005-08-03

申请人： Akiyoshi Uchida ,  Toshikazu Kanaoka

发明人： Akiyoshi Uchida ,  Toshikazu Kanaoka

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/0945 ,  G11B7/1356

摘要： A recording and reproducing apparatus according to the present invention includes a light source for emitting a light beam, a spatial modulating part for modulating the light beam to create information light, using spatial information associated with page data A to be recorded on a holographic recording medium, an optical-path changing part for changing an optical path of the information light created by the spatial modulating part, a light detecting part for receiving the information light having the optical path changed by the optical-path changing part, and a diagnosis part for inspecting operations of recording and reproducing components including the spatial modulating part and the light detecting part, using the page data A and page data B obtained from the information light received by the light detecting part.

摘要翻译： 根据本发明的记录和再现装置包括用于发射光束的光源，用于调制光束以产生信息光的空间调制部分，使用与要记录在全息记录介质上的页数据A相关联的空间信息 ，用于改变由空间调制部分产生的信息光的光路的光路改变部分，用于接收由光路改变部分改变的具有光路的信息光的光检测部分，以及用于 使用从光检测部接收的信息光获得的页数据A和页数据B来检查包括空间调制部分和光检测部分的记录和再现部件的操作。

公开(公告)号：US07468822B2

公开(公告)日：2008-12-23

申请号：US11342438

申请日：2006-01-30

申请人： Akiyoshi Uchida ,  Toshikazu Kanaoka

发明人： Akiyoshi Uchida ,  Toshikazu Kanaoka

IPC分类号： G03H1/02

CPC分类号： G11B7/0065 ,  G11B7/00772 ,  G11B7/00781 ,  G11B7/24044 ,  G11B20/10 ,  G11B20/1217 ,  G11B27/24 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2220/2504

摘要： This invention is a holographic recording medium including a track in which position information to specify a recording position and a reproducing position of page data is formed. The position information of the track is formed of position detection patterns. The position detection patterns each including a first detection mark row including center pits arranged at predetermined intervals; and a second detection mark row including side marks arranged at the same intervals as the intervals of the center pits, the side marks having lengths substantially corresponding to integral multiples of the intervals of the center pits. The second detection mark row is arranged adjacent to the first detection mark row such that both ends of the side marks are arranged so as to correspond to the center pits in a track width direction, and page data is recorded and reproduced on the basis of positions of the center pits or positions of the ends of the side marks.

摘要翻译： 本发明是一种全息记录介质，包括轨道，其中形成指定记录位置的位置信息和页面数据的再现位置。 轨道的位置信息由位置检测图案形成。 每个位置检测图案包括以预定间隔布置的包括中心凹坑的第一检测标记行; 以及第二检测标记行，其包括以与所述中心凹坑的间隔相同的间隔布置的侧面标记，所述侧标记具有基本对应于所述中心凹坑的间隔的整数倍的长度。 第二检测标记行被布置成与第一检测标记行相邻，使得侧标记的两端被布置成与轨道宽度方向上的中心凹坑相对应，并且基于位置记录和再现页数据 的中心凹坑或侧痕的端部的位置。

公开(公告)号：US20080231923A1

公开(公告)日：2008-09-25

申请号：US12153821

申请日：2008-05-23

申请人： Toshikazu Kanaoka ,  Akiyoshi Uchida

发明人： Toshikazu Kanaoka ,  Akiyoshi Uchida

IPC分类号： G03H1/10

CPC分类号： G11B7/0065 ,  G03H2001/2655 ,  G03H2240/51 ,  G03H2260/35

摘要： The present invention relates to a holographic recording apparatus that records on a multiple basis information on a holographic memory. An object of the present invention is to provide a holographic recording apparatus capable of avoiding problems of recording error of data and destruction of the existing data, which will occur when the medium of the specification shortages is used.

摘要翻译： 全息记录装置技术领域本发明涉及一种全息记录装置，其在多个基础上记录关于全息存储器的信息。 本发明的目的是提供一种全息记录装置，其能够避免当使用规格短缺的介质时会发生数据的记录错误和现有数据的破坏的问题。

公开(公告)号：US20070091769A1

公开(公告)日：2007-04-26

申请号：US11342835

申请日：2006-01-31

申请人： Yuzuru Yamakage ,  Toshikazu Kanaoka ,  Akiyoshi Uchida ,  Kazushi Uno ,  Hiroyasu Yoshikawa

发明人： Yuzuru Yamakage ,  Toshikazu Kanaoka ,  Akiyoshi Uchida ,  Kazushi Uno ,  Hiroyasu Yoshikawa

IPC分类号： G11B7/00

CPC分类号： G11B7/00772 ,  G11B7/0065 ,  G11B7/1392

摘要： A recording and reproducing apparatus includes a light source to emit a laser beam, an information light beam irradiation unit to irradiate a medium with an information light beam, a reference light beam irradiation unit to irradiate the medium with a reference light beam so as to form a specific speckle pattern on the medium. The reference light beam irradiation unit comprises a diffusion board provided in the way of a light path through which the laser beam is passed and generating the reference light beam, a rotation controller to rotate the diffusion board, and an identification information detector to detect identification information previously formed on a surface of the diffusion board. The diffusion board comprises a plurality of encode storage regions in which different identification information is formed and a plurality of diffusion pattern generation regions specified by the identification information. A position of the diffusion board is controlled based on the detected identification information such that a desired diffusion pattern generation region comes to a position through which the laser beam is passed while the laser beam is outputted.

摘要翻译： 记录和再现装置包括发射激光束的光源，用信息光束照射介质的信息光束照射单元，参考光束照射单元，用参考光束照射介质以形成 介质上的特定斑点图案。 参考光束照射单元包括设置在激光束通过的光路的方式并产生参考光束的扩散板，旋转扩散板的旋转控制器和识别信息检测器，以检测识别信息 预先形成在扩散板的表面上。 扩散板包括形成有不同识别信息的多个编码存储区域和由识别信息指定的多个扩散图案生成区域。 基于检测到的识别信息来控制扩散板的位置，使得期望的扩散图案生成区域到达激光束输出的激光束通过的位置。

公开(公告)号：US07193942B2

公开(公告)日：2007-03-20

申请号：US11038315

申请日：2005-01-18

申请人： Toshikazu Kanaoka

发明人： Toshikazu Kanaoka

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B5/012 ,  G11B7/0053 ,  G11B11/10515 ,  G11B20/10222 ,  G11B20/1403 ,  G11B20/1426 ,  H03L7/085 ,  H03L7/091

摘要： It is an object of the present invention to provide a phase difference correction apparatus and a data reproduction apparatus including a data header detection apparatus that can synchronize the phase between a clock for reproducing data and an optimum sampling point of a reproduction signal with high accuracy and thus precisely detect a header of reproduced data even in a case where the S/N ratio of a signal is low. In order to achieve the object, a data reproduction apparatus for sampling a reproduction signal reproduced from an information medium with a predetermined sample clock including an A/D converter apparatus for sampling the reproduction signal with the sample clock, a phase difference detection part for detecting a phase difference between an optimum sampling point of a sample signal sampled by the A/D converter part, and a phase difference correction apparatus including an optimum phase difference correction part for correcting a phase of a sampling point of the sample signal to an optimum phase according to the phase difference detected by the phase difference detection part so that the sample signal becomes a signal sampled at the optimum sampling point is provided.

摘要翻译： 本发明的目的是提供一种相位差校正装置和数据再现装置，该装置包括数据标题检测装置，该数据标题检测装置能够使再现数据的时钟和再现信号的最佳采样点之间的相位以高精度同步， 因此即使在信号的S / N比低的情况下也能精确地检测出再现数据的标题。 为了实现该目的，一种数据再现装置，用于对包含用于采样时钟的再现信号进行采样的A / D转换器装置的预定采样时钟从信息介质再现的再现信号进行采样;相位差检测部分，用于检测 由A / D转换器部分采样的采样信号的最佳采样点与包括用于将采样信号的采样点的相位校正到最佳相位的最佳相位差校正部分的相位差校正装置之间的相位差 根据由相​​位差检测部检测出的相位差，使得采样信号成为在最佳采样点采样的信号。

公开(公告)号：US20060187510A1

公开(公告)日：2006-08-24

申请号：US11145824

申请日：2005-06-06

申请人： Toshikazu Kanaoka

发明人： Toshikazu Kanaoka

IPC分类号： G02B5/32

CPC分类号： G03H1/02 ,  G03H1/0256 ,  G03H1/26 ,  G03H2001/026 ,  G03H2250/33 ,  G03H2250/38 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/24033 ,  G11B7/24044

摘要： An optical recording medium which comprises a holographic recording layer on which information is recorded by means of holography, a light shield member fixed to at least one of main surfaces of the holographic recording layer, a control electrode for controlling a light transmission state of the light shield member, wherein, the light shield member has a plurality of pixels obtained by dividing the light shield member on a recording unit region basis, and the light transmission state can be controlled pixel by pixel.

摘要翻译： 一种光记录介质，包括通过全息记录信息的全息记录层，固定在全息记录层的至少一个主表面上的遮光部件，用于控制光的透光状态的控制电极 屏蔽构件，其中，所述遮光构件具有通过在所述记录单元区域基础上划分所述遮光构件而获得的多个像素，并且可以逐个像素地控制所述光透射状态。