公开(公告)号：US20080080030A1

公开(公告)日：2008-04-03

申请号：US11862373

申请日：2007-09-27

申请人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

发明人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

IPC分类号： G03H1/00

CPC分类号： G11B7/0065 ,  G03H2223/13 ,  G03H2225/31 ,  G11B7/1367

摘要： A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated with respect to the hologram recording medium set at a prescribed position; a special light modulation means configured to be able to generate reference light and signal light to be radiated to the hologram recording medium by performing light intensity modulation to incident light in the unit of pixels; a phase modulation means for performing phase modulation to radiated light from the special light modulation means; and an optical system configured to guide light emitted from the light emitting means with respect to the hologram recording medium through the special modulation means and the phase modulation means.

摘要翻译： 公开了至少对全息图记录介质进行记录的记录装置。 记录介质包括：发光装置，用于发射相对于设置在规定位置的全息图记录介质辐射的光; 一种特殊的光调制装置，被配置为能够通过对以像素为单位的入射光进行光强度调制而产生将被照射到全息图记录介质的参考光和信号光; 相位调制装置，用于对来自特殊光调制装置的辐射光进行相位调制; 以及光学系统，被配置为通过专用调制装置和相位调制装置引导从发光装置相对于全息图记录介质发射的光。

公开(公告)号：US20080297865A1

公开(公告)日：2008-12-04

申请号：US11866857

申请日：2007-10-03

申请人： Masaaki Hara ,  Kenji Tanaka ,  Kazuyuki Hirooka

发明人： Masaaki Hara ,  Kenji Tanaka ,  Kazuyuki Hirooka

IPC分类号： G03H1/20

CPC分类号： G11B27/24 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/128 ,  G11B7/1369 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/1024 ,  G11B2020/1287 ,  G11B2220/2504

摘要： A reproducing apparatus, reproducing method, recording and reproducing apparatus, recording and reproducing method, recording apparatus, and recording method are provided. A reproducing apparatus reproduces data from a hologram recording medium in which data inserted with syncs at predetermined intervals is recorded in each predetermined page unit by interference fringes of reference light and signal light includes a reference-light irradiating unit that irradiates the reference light on the hologram recording medium, a signal readout unit that receives diffractive light corresponding to the data recorded on the hologram recording medium, a sync-position detecting unit that detects a position of a detection object sync on the basis of positions of plural syncs selected with the position of the detection object sync as a reference, and an amplitude-value calculating unit that specifies positions of respective recording pixels in the readout signal on the basis of the positions of the respective syncs detected by the sync-position detecting unit and calculates amplitude values of the respective pixels.

摘要翻译： 提供再现装置，再现方法，记录和再现装置，记录和再现方法，记录装置和记录方法。 再现装置再现来自全息图记录介质的数据，其中以预定间隔插入同步的数据通过参考光的干涉条纹记录在每个预定页单元中，并且信号光包括在全息图上照射参考光的参考光照射单元 记录介质，接收与记录在全息图记录介质上的数据相对应的衍射光的信号读出单元，同步位置检测单元，其根据多个同步的位置检测检测对象同步的位置， 检测对象同步作为基准，以及振幅值计算单元，其基于由同步位置检测单元检测到的各个同步的位置来指定读出信号中的各个记录像素的位置，并计算出 各自的像素。

公开(公告)号：US20080144147A1

公开(公告)日：2008-06-19

申请号：US11947637

申请日：2007-11-29

申请人： Masaaki Hara ,  Mikio Sugiki ,  Kazutatsu Tokuyama ,  Mitsuru Toishi ,  Kenji Tanaka ,  Kazuyuki Hirooka

发明人： Masaaki Hara ,  Mikio Sugiki ,  Kazutatsu Tokuyama ,  Mitsuru Toishi ,  Kenji Tanaka ,  Kazuyuki Hirooka

IPC分类号： G03H1/02 ,  G03H1/12 ,  G03H1/22

CPC分类号： G03H1/22 ,  G03H2001/0441 ,  G03H2210/562 ,  G03H2223/12 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/128 ,  G11B7/1369

摘要： In a reproducing apparatus adapted to reproduce data recorded on a holographic recording medium, a reference light generator generates reference light for illuminating the holographic recording medium, and a coherent light generator generates coherent light having an intensity greater than the absolute value of a minimum amplitude of a reproduced image and having a phase equal to the phase of the reproduced image. An image signal acquisition unit senses the reproduced image produced by illuminating the holographic recording medium with the reference light and the coherent light, and acquires an image signal based on the reproduced image. A square root calculation unit calculates the square root of each of values constituting the image signal. A removal unit removes the component of the coherent light from the calculated square root, whereby the data recorded on the holographic recording medium is correctly reproduced.

摘要翻译： 在适于再现记录在全息记录介质上的数据的再现装置中，参考光发生器产生用于照亮全息记录介质的参考光，并且相干光发生器产生具有大于最小幅度绝对值的强度的相干光 再现图像并且具有等于再现图像的相位的相位。 图像信号获取单元通过用参考光和相干光来感测通过照射全息记录介质产生的再现图像，并且基于再现的图像获取图像信号。 平方根计算单元计算构成图像信号的每个值的平方根。 去除单元从计算的平方根去除相干光的分量，由此记录在全息记录介质上的数据被正确地再现。

公开(公告)号：US07835049B2

公开(公告)日：2010-11-16

申请号：US11947637

申请日：2007-11-29

申请人： Masaaki Hara ,  Mikio Sugiki ,  Kazutatsu Tokuyama ,  Mitsuru Toishi ,  Kenji Tanaka ,  Kazuyuki Hirooka

发明人： Masaaki Hara ,  Mikio Sugiki ,  Kazutatsu Tokuyama ,  Mitsuru Toishi ,  Kenji Tanaka ,  Kazuyuki Hirooka

IPC分类号： G03H1/20

CPC分类号： G03H1/22 ,  G03H2001/0441 ,  G03H2210/562 ,  G03H2223/12 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/128 ,  G11B7/1369

摘要： In a reproducing apparatus adapted to reproduce data recorded on a holographic recording medium, a reference light generator generates reference light for illuminating the holographic recording medium, and a coherent light generator generates coherent light having an intensity greater than the absolute value of a minimum amplitude of a reproduced image and having a phase equal to the phase of the reproduced image. An image signal acquisition unit senses the reproduced image produced by illuminating the holographic recording medium with the reference light and the coherent light, and acquires an image signal based on the reproduced image. A square root calculation unit calculates the square root of each of values constituting the image signal. A removal unit removes the component of the coherent light from the calculated square root, whereby the data recorded on the holographic recording medium is correctly reproduced.

摘要翻译： 在适于再现记录在全息记录介质上的数据的再现装置中，参考光发生器产生用于照亮全息记录介质的参考光，并且相干光发生器产生具有大于最小幅度绝对值的强度的相干光 再现图像并且具有等于再现图像的相位的相位。 图像信号获取单元通过用参考光和相干光来感测通过照射全息记录介质产生的再现图像，并且基于再现的图像获取图像信号。 平方根计算单元计算构成图像信号的每个值的平方根。 去除单元从计算的平方根去除相干光的分量，由此记录在全息记录介质上的数据被正确地再现。

公开(公告)号：US07684097B2

公开(公告)日：2010-03-23

申请号：US11862373

申请日：2007-09-27

申请人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

发明人： Atsushi Fukumoto ,  Mikio Sugiki ,  Kenji Tanaka ,  Masaaki Hara ,  Kazuyuki Hirooka

IPC分类号： G03H1/12 ,  G03H1/04

CPC分类号： G11B7/0065 ,  G03H2223/13 ,  G03H2225/31 ,  G11B7/1367

摘要： A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated with respect to the hologram recording medium set at a prescribed position; a spatial light modulation means configured to be able to generate reference light and signal light to be radiated to the hologram recording medium by performing light intensity modulation to incident light in the unit of pixels; a phase modulation means for performing phase modulation to radiated light from the spatial light modulation means; and an optical system configured to guide light emitted from the light emitting means with respect to the hologram recording medium through the spatial modulation means and the phase modulation means.

摘要翻译： 公开了至少对全息图记录介质进行记录的记录装置。 记录介质包括：发光装置，用于发射相对于设置在规定位置的全息图记录介质辐射的光; 空间光调制装置，其被配置为能够通过对以像素为单位的入射光进行光强度调制来产生将被照射到全息图记录介质的参考光和信号光; 相位调制装置，用于对来自空间光调制装置的辐射光进行相位调制; 以及光学系统，被配置为通过空间调制装置和相位调制装置引导从发光装置相对于全息图记录介质发射的光。

公开(公告)号：US07764584B2

公开(公告)日：2010-07-27

申请号：US11866857

申请日：2007-10-03

申请人： Masaaki Hara ,  Kenji Tanaka ,  Kazuyuki Hirooka

发明人： Masaaki Hara ,  Kenji Tanaka ,  Kazuyuki Hirooka

IPC分类号： G11B7/00

CPC分类号： G11B27/24 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/128 ,  G11B7/1369 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/1024 ,  G11B2020/1287 ,  G11B2220/2504

摘要： A reproducing apparatus, reproducing method, recording and reproducing apparatus, recording and reproducing method, recording apparatus, and recording method are provided. A reproducing apparatus reproduces data from a hologram recording medium in which data inserted with syncs at predetermined intervals is recorded in each predetermined page unit by interference fringes of reference light and signal light includes a reference-light irradiating unit that irradiates the reference light on the hologram recording medium, a signal readout unit that receives diffractive light corresponding to the data recorded on the hologram recording medium, a sync-position detecting unit that detects a position of a detection object sync on the basis of positions of plural syncs selected with the position of the detection object sync as a reference, and an amplitude-value calculating unit that specifies positions of respective recording pixels in the readout signal on the basis of the positions of the respective syncs detected by the sync-position detecting unit and calculates amplitude values of the respective pixels.

摘要翻译： 提供再现装置，再现方法，记录和再现装置，记录和再现方法，记录装置和记录方法。 再现装置再现来自全息图记录介质的数据，其中以预定间隔插入同步的数据通过参考光的干涉条纹记录在每个预定页单元中，并且信号光包括在全息图上照射参考光的参考光照射单元 记录介质，接收与记录在全息图记录介质上的数据相对应的衍射光的信号读出单元，同步位置检测单元，其根据多个同步的位置检测检测对象同步的位置， 检测对象同步作为基准，以及振幅值计算单元，其基于由同步位置检测单元检测到的各个同步的位置来指定读出信号中的各个记录像素的位置，并计算出 各自的像素。

公开(公告)号：US07965205B2

公开(公告)日：2011-06-21

申请号：US12150416

申请日：2008-04-28

申请人： Masaaki Hara ,  Kenji Tanaka

发明人： Masaaki Hara ,  Kenji Tanaka

IPC分类号： H03M7/00

CPC分类号： H03M5/145 ,  G11B7/0065

摘要： Disclosed herein is a data identification method for identifying, from within a readout signal from a recording medium on or in which user data of k bits are recorded using a recording modulation code wherein m bits from among n bits which compose one codeword have a value of “1” while the remaining n-m bits have another value of “0”, the data, n and m being integers including, a first step of delimiting the readout signal in a unit of a codeword and adding, with regard to one of the n-bit codewords obtained by the delimiting, an amplitude of the readout signal of the bits of “1” to 2k different codewords which may possibly be recorded and setting results of the addition as evaluation values, and a second step of finding a maximum value among the 2k evaluation values and outputting the maximum value as an evaluation result.

摘要翻译： 这里公开了一种数据识别方法，用于在记录介质上从记录介质读出的信号中识别k比特的用户数据，记录调制码，其中构成一个码字的n比特中的m比特的值为 “1”，而其余的nm位具有另一个值“0”，数据n和m是整数，其包括：以码元为单位限定读出信号的第一步骤，并相对于n 通过定界获得的位字节码，可能被记录的比特“1”到2k个不同码字的读出信号的幅度，并且将添加的结果设置为评估值，以及第二步骤， 2k评估值并输出最大值作为评估结果。

公开(公告)号：US20100225985A1

公开(公告)日：2010-09-09

申请号：US12697639

申请日：2010-02-01

申请人： Atsushi Fukumoto ,  Kenji Tanaka ,  Masaaki Hara ,  Akio Yamakawa

发明人： Atsushi Fukumoto ,  Kenji Tanaka ,  Masaaki Hara ,  Akio Yamakawa

IPC分类号： G03H1/22

CPC分类号： G11B7/083 ,  G03H1/16 ,  G03H2225/32 ,  G03H2225/36 ,  G03H2225/60 ,  G11B7/0065 ,  G11B20/10009 ,  G11B2220/2504

摘要： A reproducing device including a light source that emits light for reproducing recorded information to a hologram recording medium subjected to recording of information by interference fringes of signal light and reference light, a light irradiating unit that generates the reference light for obtaining a reproduced image according to the recorded information and DC light having uniform intensity and phase, and irradiates the hologram recording medium with both the reference light and the DC light and with only the DC light, a light receiving unit that performs light-reception for the DC light and the reproduced image, and performs light-reception for the DC light, and a difference calculating unit that calculates a difference between an image signal obtained based on a light-reception result of the reproduced image and the DC light, and an image signal obtained based on a light-reception result of the DC light.

摘要翻译： 一种再生装置，其特征在于，包括：光源，其向通过信号光和基准光的干涉条纹记录信息的全息图记录媒体发出记录信息的光;照射单元，生成用于获得根据 所记录的信息和DC光具有均匀的强度和相位，并且仅用DC光照射具有参考光和DC光的全息图记录介质，对DC光进行光接收的光接收单元 图像，并且对DC光进行光接收;以及差分计算单元，其计算基于再现图像的光接收结果获得的图像信号与DC光之间的差异，以及基于 直流光的光接收结果。

公开(公告)号：US20070268539A1

公开(公告)日：2007-11-22

申请号：US11745931

申请日：2007-05-08

申请人： Mitsuru Toishi ,  Masaaki Hara ,  Kenji Tanaka ,  Koji Ishioka ,  Atsushi Fukumoto

发明人： Mitsuru Toishi ,  Masaaki Hara ,  Kenji Tanaka ,  Koji Ishioka ,  Atsushi Fukumoto

IPC分类号： G03H1/12

CPC分类号： G03H1/28 ,  G03H2001/2675 ,  G03H2225/60 ,  G11B7/00772 ,  G11B7/083

摘要： A holographic recording and reproducing apparatus is provided. The holographic recording and reproducing apparatus includes a signal-beam spatial light modulating unit that displays a signal beam pattern for a signal beam, a reference-beam spatial light modulating unit that displays a reference beam pattern for a reference beam, and a controller that controls the mode of the signal beam pattern and that of the reference beam pattern. The controller controls the modes of at least two signal beam patterns and the modes of at least two reference beam patterns. A first reference beam is made to interfere with a first signal beam based on first recording data to record the data as a first hologram in a predetermined area of the holographic recording medium. A second reference beam is made to interfere with a second signal beam based on second recording data to record the data as a second hologram such that the second hologram is superimposed on the first hologram.

摘要翻译： 提供全息记录和再现装置。 全息记录和再现装置包括：信号束空间光调制单元，其显示用于信号光束的信号光束图案;参考光束空间光调制单元，其显示用于参考光束的参考光束图案;以及控制器， 信号光束图案的模式和参考光束图案的模式。 控制器控制至少两个信号光束图案的模式和至少两个参考光束图案的模式。 基于第一记录数据使第一参考光束与第一信号光束相干扰，以在全息记录介质的预定区域中将数据记录为第一全息图。 基于第二记录数据使第二参考光束与第二信号光束相干以将数据记录为第二全息图，使得第二全息图叠加在第一全息图上。

公开(公告)号：US20070159365A1

公开(公告)日：2007-07-12

申请号：US11646163

申请日：2006-12-27

申请人： Masaaki Hara ,  Kenji Tanaka

发明人： Masaaki Hara ,  Kenji Tanaka

IPC分类号： H03M7/00

CPC分类号： H03M5/145 ,  G11B7/0065

摘要： Disclosed herein is a data identification method for identifying, from within a readout signal from a recording medium on or in which user data of k bits are recorded using a recording modulation code wherein m bits from among n bits which compose one codeword have a value of “1” while the remaining n-m bits have another value of “0”, the data, n and m being integers including, a first step of delimiting the readout signal in a unit of a codeword and adding, with regard to one of the n-bit codewords obtained by the delimiting, an amplitude of the readout signal of the bits of “1” to 2ˆk different codewords which may possibly be recorded and setting results of the addition as evaluation values, and a second step of finding a maximum value among the 2ˆk evaluation values and outputting the maximum value as an evaluation result.

摘要翻译： 这里公开了一种数据识别方法，用于在记录介质上从记录介质读出的信号中识别k比特的用户数据，记录调制码，其中构成一个码字的n比特中的m比特的值为 “1”，而其余的nm位具有另一个值“0”，数据n和m是整数，其包括：以码元为单位限定读出信号的第一步骤，并相对于n 通过定界获得的位字节码，可能被记录的比特“1”到2k个不同码字的读出信号的幅度，并且将添加的结果设置为评估值，以及第二步骤， 2k评估值并输出最大值作为评估结果。