公开(公告)号：US20050105152A1

公开(公告)日：2005-05-19

申请号：US10872422

申请日：2004-06-22

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G03H1/22 ,  G02B5/32 ,  G06T3/40 ,  G11B7/0065 ,  G11C13/04 ,  H04N1/393 ,  G03H1/26 ,  H04N1/40

CPC分类号： G11B7/0065 ,  G02B5/32 ,  G11C13/042

摘要： In an apparatus for processing holographic data reproduced from a holographic medium, a data arranging unit arranges input data in a form of M1×M2 data pixels on a page basis to thereby generate arranged data. Then, a holographic data detector outputs a page image including a detected data image, each data pixel of the arranged data corresponding to P1×P2 image pixels of the detected data image. Thereafter, a resized pixel detector finds a resized vertical length V and a resized horizontal length H of the detected data image. Finally, a sampling unit extracts image pixels at different intervals depending on whether the horizontal length and/or the vertical length of the detected data image is increased or decreased.

摘要翻译： 在用于处理从全息介质再现的全息数据的处理装置中，数据排列单元以页面为单位布置M1×2M数据像素的形式的输入数据，从而生成排列数据。 然后，全息数据检测器输出包括检测数据图像的页面图像，与所检测的数据图像的P1xP2图像像素相对应的排列数据的每个数据像素。 此后，调整大小的像素检测器找到检测数据图像的调整大小的垂直长度V和调整大小的水平长度H. 最后，采样单元根据所检测的数据图像的水平长度和/或垂直长度的增加或减小，以不同的间隔提取图像像素。

公开(公告)号：US07474782B2

公开(公告)日：2009-01-06

申请号：US10872422

申请日：2004-06-22

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G06K9/00

CPC分类号： G11B7/0065 ,  G02B5/32 ,  G11C13/042

摘要： In an apparatus for processing holographic data reproduced from a holographic medium, a data arranging unit arranges input data in a form of M1×M2 data pixels on a page basis to thereby generate arranged data. Then, a holographic data detector outputs a page image including a detected data image, each data pixel of the arranged data corresponding to P1×P2 image pixels of the detected data image. Thereafter, a resized pixel detector finds a resized vertical length V and a resized horizontal length H of the detected data image. Finally, a sampling unit extracts image pixels at different intervals depending on whether the horizontal length and/or the vertical length of the detected data image is increased or decreased.

摘要翻译： 在用于处理从全息介质再现的全息数据的处理装置中，数据排列单元以页面为单位布置M1×2M数据像素的形式的输入数据，从而生成排列数据。 然后，全息数据检测器输出包括检测数据图像的页面图像，与所检测的数据图像的P1xP2图像像素相对应的排列数据的每个数据像素。 此后，调整大小的像素检测器找到检测数据图像的调整大小的垂直长度V和调整大小的水平长度H. 最后，采样单元根据所检测的数据图像的水平长度和/或垂直长度的增加或减小，以不同的间隔提取图像像素。

公开(公告)号：US06894816B2

公开(公告)日：2005-05-17

申请号：US10209495

申请日：2002-07-30

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G03H1/00 ,  G11B7/0065 ,  G11B7/09 ,  G03H1/04

CPC分类号： G11B7/0938 ,  G11B7/0065 ,  Y10S359/90

摘要： In a holographic digital data storage system, holographic page data has at least two concentric patterns with the optical information arranged within an outermost pattern of at least two concentric patterns. Since at least two concentric patterns in the holographic page data are deformed into at least two elliptic patterns in the diffracted beam caused by irradiation of the reference beam, at least two elliptic patterns are extracted from the diffracted beam and then at least two elliptic patterns are estimated to generate at least two estimated concentric patterns. A compensated vector between said at least two elliptic patterns and said at least two estimated concentric patterns is used to reconstruct the optical information from the diffracted beam.

摘要翻译： 在全息数字数据存储系统中，全息页数据具有至少两个同心图案，其中光信息被布置在至少两个同心图案的最外图案内。 由于全息页面数据中的至少两个同心图案被变形为由参考光束的照射引起的衍射光束中的至少两个椭圆形图案，所以从衍射光束中提取至少两个椭圆形图案，然后至少两个椭圆图案是 估计产生至少两个估计的同心图案。 所述至少两个椭圆图案和所述至少两个估计的同心图案之间的补偿矢量用于从衍射光束重构光学信息。

公开(公告)号：US06745366B1

公开(公告)日：2004-06-01

申请号：US09717950

申请日：2000-11-21

申请人： Jae-Woo Roh ,  Byung-Bok Kang

发明人： Jae-Woo Roh ,  Byung-Bok Kang

IPC分类号： G11C2900

CPC分类号： H03M13/03

摘要： A method for correcting an error in N:N+1 channel codes categorizes 2N+1 codeword (N+1)-tuples into M subsets of codeword (N+1)-tuples, wherein each subset G has NG codeword (N+1)-tuples and the total number of codeword (N+1)-tuples in the M subsets is 2N and wherein each subset G has a predetermined number KG of lower bits and a predetermined number (N+1−KG) of higher bits and the number of lower bits in every codeword (N+1)-tuple in any subset is not equivalent to that of lower bits in every codeword (N+1)-tuple in any other subset. The 2N message N-tuples are mapped with said 2N codeword (N+1)-tuples in the M subsets, respectively, in one-to-one correspondence to generate a lookup table.

摘要翻译： 用于校正N：N + 1个信道码中的错误的方法将2 ，并且其中每个子集G具有预定数量的较低位的KG和预定数量（N + KG），并且任何子集中的每个码字（N + 1）个元组中的较低位的数量不等于任何其他子集中每个码字（N + 1）个组中的较低位的数目。 2 N消息N元组分别与M个子集中的所述2 N个码字（N + 1）个元组一一对应地映射，以生成查找表。

公开(公告)号：US07519224B2

公开(公告)日：2009-04-14

申请号：US11099440

申请日：2005-04-06

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G06K9/76 ,  G11B7/00

CPC分类号： G11B7/0065

摘要： The present invention provides a method and apparatus for preprocessing a page image reproduced from a storage medium in a holographic system. The present invention calculates pixel sums for each lines in the page image to select a maximum sum, calculates a modified maximum sum using the modified maximum sum and its neighboring sums, determines a compensation location for distorted pixels using the modified maximum sum and performs over-sampling a data image with reference to the compensation location of magnified pixels, to thereby compensate the data image with high precision in sub-pixels.

摘要翻译： 本发明提供了一种用于预处理在全息系统中从存储介质再现的页面图像的方法和装置。 本发明针对页面图像中的每行计算像素和以选择最大和，并使用经修改的最大和及其相邻和计算修正的最大和，并使用修正的最大和确定失真像素的补偿位置， 参考放大像素的补偿位置对数据图像进行采样，从而在子像素中以高精度补偿数据图像。

公开(公告)号：US06999214B2

公开(公告)日：2006-02-14

申请号：US10806145

申请日：2004-03-23

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G03H1/22

CPC分类号： G11B7/1263 ,  G11B7/0065 ,  G11C13/042

摘要： In an apparatus for detecting holographic data reproduced from a holographic medium, the holographic medium has an interference pattern and the holographic data is reproduced when a first portion of a reference beam is diffracted by the interference pattern within the holographic medium. A transmission beam detector detects a light intensity of a transmission beam which is a second portion of the reference beam, wherein the transmission beam is not diffracted to reproduce the holographic data and passes through the holographic medium. Then, a CCD (charge coupled device) controller generates a driving signal in accordance with the detected light intensity. Thereafter, a CCD detects the holographic data in response to the driving signal.

摘要翻译： 在用于检测从全息介质再现的全息数据的装置中，全息介质具有干涉图案，并且当参考光束的第一部分被全息介质内的干涉图案衍射时，全息数据被再现。 发射光束检测器检测作为参考光束的第二部分的透射光束的光强度，其中透射光束不被衍射以再现全息数据并通过全息介质。 然后，CCD（电荷耦合器件）控制器根据检测到的光强度产生驱动信号。 此后，CCD响应于驱动信号检测全息数据。

公开(公告)号：US20090141120A1

公开(公告)日：2009-06-04

申请号：US12292304

申请日：2008-11-17

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： H04N5/89

CPC分类号： G11B7/0065

摘要： The present invention provides a method and apparatus for preprocessing a page image reproduced from a storage medium in a holographic system. The present invention calculates pixel sums for each lines in the page image to select a maximum sum, calculates a modified maximum sum using the modified maximum sum and its neighboring sums, determines a compensation location for distorted pixels using the modified maximum sum and performs over-sampling a data image with reference to the compensation location of magnified pixels, to thereby compensate the data image with high precision in sub-pixels.

公开(公告)号：US20050226528A1

公开(公告)日：2005-10-13

申请号：US11099440

申请日：2005-04-06

申请人： Byung-Bok Kang

发明人： Byung-Bok Kang

IPC分类号： G03H1/26 ,  G03H1/00 ,  G06K7/12 ,  G06T5/00 ,  G11B7/0065 ,  G11B20/10 ,  H04N5/91

CPC分类号： G11B7/0065

摘要： The present invention provides a method and apparatus for preprocessing a page image reproduced from a storage medium in a holographic system. The present invention calculates pixel sums for each lines in the page image to select a maximum sum, calculates a modified maximum sum using the modified maximum sum and its neighboring sums, determines a compensation location for distorted pixels using the modified maximum sum and performs over-sampling a data image with reference to the compensation location of magnified pixels, to thereby compensate the data image with high precision in sub-pixels.

摘要翻译： 本发明提供了一种用于预处理在全息系统中从存储介质再现的页面图像的方法和装置。 本发明针对页面图像中的每行计算像素和以选择最大和，并使用经修改的最大和及其相邻和计算修正的最大和，并使用修正的最大和确定失真像素的补偿位置， 参考放大像素的补偿位置对数据图像进行采样，从而在子像素中以高精度补偿数据图像。