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1. 发明专利

JP2007280583A Optical information processing apparatus, and optical information recording and reproducing method using the same 审中-公开
标题翻译：光信息处理装置和使用该光信息处理装置的光信息记录和再现方法
公开(公告)号：JP2007280583A
公开(公告)日：2007-10-25
申请号：JP2006196597
申请日：2006-07-19
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクスDaewoo Electronics Corporation
发明人： ROH JAE-WOO , PARK JOO-YOUN
IPC分类号： G11B7/0065 , G11B7/135
CPC分类号： G03H1/26 , G03H2001/2675 , G11B7/0065 , G11B7/128
摘要： PROBLEM TO BE SOLVED: To perform multiplex processing of optical information when recording and reproducing optical information using a reference beam and a signal beam of a coaxial optical system. SOLUTION: The optical information recording apparatus comprises: a light source 100; a light modulator 130; a lens 180; and an optical information storage medium 190. The light source 100 emits light. The light modulator 130 superposes the signal beam and reference beam on the light emitted from the light source 100. The lens 180 makes the signal beam and the reference beam cross each other on the optical information storage medium. A hologram is recorded in the optical information storage medium 190 by means of interference between the signal beam and the reference beam. The hologram is reproduced by irradiating the optical information storage medium only with the reference beam. The light modulator 130 can superpose the reference beam according to reference beam patterns. The light modulator 130 includes various reference patterns which are not correlated with each other. Multiplex recording is carried out by changing the reference beam pattern to record the hologram. Multiplex reproduction is carried out by changing the reference beam pattern to reproduce the hologram. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：使用同轴光学系统的参考光束和信号光记录和再现光学信息时，执行光学信息的多路复用处理。光信息记录装置包括：光源100; 光调制器130; 透镜180; 和光信息存储介质190.光源100发光。光调制器130将信号光束和参考光束叠加在从光源100发射的光上。透镜180使信号光束和参考光束在光学信息存储介质上彼此交叉。通过信号光束和参考光束之间的干涉将全息图记录在光学信息存储介质190中。通过仅使用参考光束照射光学信息存储介质来再现全息图。光调制器130可以根据参考光束图案叠加参考光束。光调制器130包括彼此不相关的各种参考图案。通过改变参考光束图案来记录全息图来进行多路复用记录。通过改变参考光束图案来再现全息图来进行多路复用。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2004334178A Device and method for recording digital data on holographic recording system 审中-公开
公开(公告)号：JP2004334178A
公开(公告)日：2004-11-25
申请号：JP2004100877
申请日：2004-03-30
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO
IPC分类号： G03H1/00 , G03H1/04 , G03H1/08 , G03H1/10 , G03H1/26 , G11B7/00 , G11B7/0065 , G11B7/125 , G11B7/135
CPC分类号： G03H1/0402 , G03H1/04 , G03H2001/0415 , G03H2001/0473 , G03H2210/20 , G03H2223/12 , G03H2270/22 , G11B7/0065 , G11B7/1359
摘要： PROBLEM TO BE SOLVED: To provide a device and method for recording digital data on a holographic medium capable of miniaturizing a holographic digital data recording system.
SOLUTION: This holographic device includes a mask which modulates a signal light to produce a modulated signal light and a conical prism including conical and basal parts for producing a refracted reference light by refracting a reference light, and it is constituted so that the refracted reference light and modulated signal light interfere in a holographic medium to which the basal part faces, thereby, data are recorded on the holographic medium.
COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2003317028A Data input method for holographic digital data storage system 有权
标题翻译：全息数据存储系统的数据输入方法
公开(公告)号：JP2003317028A
公开(公告)日：2003-11-07
申请号：JP2002276500
申请日：2002-09-24
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO
IPC分类号： G03H1/10 , G03H1/00 , G03H1/26 , G06K1/12 , G11B7/0065 , G11B7/013 , G11C13/04
CPC分类号： G11C13/042 , G11B7/0065 , G11B7/013
摘要： PROBLEM TO BE SOLVED: To provide a data input method capable of reducing reproduction errors of holographically stored digital data. SOLUTION: The digital input method which arranges binary input data bit among many pages is applied to a holographic digital data storage device. A 1st data bit is arranged at a specified position of a predetermined page and a 2nd data bit is arranged at a specified position with beam intensity similar to the position where the 1st data bit is arranged. Applying a method like this reduces the influence of spatial variation in beam intensity in the holographic digital data storage device and interleaving is automatically carried out to obtain a stabler result. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供能够减少全息存储的数字数据的再现误差的数据输入方法。解决方案：将许多页面中的二进制输入数据位排列的数字输入方法应用于全息数字数据存储装置。第一数据位被布置在预定页的指定位置，并且第二数据位被布置在具有与布置第一数据位的位置类似的光束强度的指定位置。应用这样的方法减少了全息数字数据存储设备中光束强度的空间变化的影响，并且自动进行交织以获得更稳定的结果。版权所有（C）2004，JPO

4. 发明专利

JP2003297087A Memory and reproducing apparatus' for holography data and coding/decoding method for holography data 有权
标题翻译：用于全息数据的记忆和再现装置以及全息数据的编码/解码方法
公开(公告)号：JP2003297087A
公开(公告)日：2003-10-17
申请号：JP2002202290
申请日：2002-07-11
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO
IPC分类号： G03H1/04 , G03H1/26 , G11B7/0065 , G11B20/10 , G11C13/04 , H04N5/92 , H04N5/926 , H04N13/02
CPC分类号： G11C13/042 , G03H1/265 , G03H2260/54 , G11B7/0065 , G11B20/10 , H04N5/9205 , H04N5/926
摘要： PROBLEM TO BE SOLVED: To provide a memory and reproducing apparatus for holography data capable of preventing the isolation 'on' or 'off' phenomenon arising in an arbitrary pixel and decreasing the errors arising during reproduction and a coding/decoding method for the holography data. SOLUTION: Data blocks of 2×2 formed by separating external input data to a plurality of groups respectively composed of 2-bit units in a recording (memory) mode, by having the 2-bit data of the respective groups as first lines and by having the 2-bit data formed by applying a binary differentiation system to the respective bits of the 2-bit data as second lines are recorded to a memory medium 119. The reproduced signals outputted from the memory medium 119 in a reproduction mode are separated to the data blocks of 2×2. The values of one line one row and two lines two rows of the data blocks of 2×2 are then compared and the one line two rows and the two rows one line are compared and are decoded to the data of the 2-bits, by which the isolation 'on' or 'off' phenomenon in the arbitrary pixel can be prevented. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于全息数据的存储和再现装置，其能够防止在任意像素中产生的隔离“开”或“关”现象，并减少再现期间产生的错误，以及编码/解码方法全息数据。解决方案：通过将各个组的2位数据作为第一数据，将外部输入数据分离成分别由记录（存储器）模式中的2位单元组成的多个组而形成的2×2的数据块并且通过将通过将二进制微分系统应用于作为第二行的2比特数据的各个比特形成的2比特数据被记录到存储介质119中。再现模式从存储介质119输出的再现信号被分隔成2×2的数据块。然后比较一行一行和两行两行2×2数据块的值，并比较一行两行和两行一行，并将其解码为2位的数据，由可以防止任意像素中的隔离“开”或“断”现象。版权所有（C）2004，JPO

5. 发明专利

JP2003317261A Apparatus and method for compensating wobble in holographic digital data storage system 有权
标题翻译：用于在全息数字存储系统中对硬化进行补偿的装置和方法
公开(公告)号：JP2003317261A
公开(公告)日：2003-11-07
申请号：JP2002288545
申请日：2002-10-01
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO , CHO JANG-HYUN
IPC分类号： G03H1/22 , G03H1/00 , G11B7/0065 , G11B7/095 , G11C13/04
CPC分类号： G11B7/0956 , G11B7/0065
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and method for compensating wobble in a storage medium in a holographic digital data storage system. SOLUTION: The holographic digital data storage apparatus comprises a beam generator and a determining means and detects the wobble in the storage medium. The disk includes therein one or more holographically generated patterns. A beam generator projects at least two wobble detection beams to the holographically generated patterns. The wobble detection beams have different diffraction efficiencies provided at respective characteristic angles, wherein each characteristic angle is an angle between an optical path of one wobble detection beam and that of its corresponding pattern forming beam used in forming one of the holographically generated patterns and a diffraction efficiency is given by a ratio of a power of a diffracted beam of one of the wobble detection beams. The determining means for finding at least a difference between the diffraction efficiencies to thereby determine the wobbling in the disk. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：提供一种用于补偿全息数字数据存储系统中的存储介质中的摆动的装置和方法。解决方案：全息数字数据存储装置包括光束发生器和确定装置，并检测存储介质中的摆动。盘中包括一个或多个全息产生的图案。光束发生器将至少两个摆动检测光束投影到全息产生的图案。摆动检测光束在各个特征角度具有不同的衍射效率，其中每个特征角度是一个摆动检测光束的光路与其形成全息产生的图案之一中使用的相应图案形成光束的光路之间的角度，以及衍射效率由摆动检测光束之一的衍射光束的光焦度的比率给出。用于确定衍射效率之间的差异的确定装置，从而确定盘中的摆动。版权所有（C）2004，JPO

6. 发明专利

JP2004335067A Holographic digital data recording system 有权
公开(公告)号：JP2004335067A
公开(公告)日：2004-11-25
申请号：JP2003317979
申请日：2003-09-10
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO
IPC分类号： G03H1/04 , G03H1/18 , G03H1/26 , G11B7/0065 , G11B7/135
CPC分类号： G03H1/265 , G11B7/0065
摘要： PROBLEM TO BE SOLVED: To provide a holographic digital data recording system capable of increasing the recording density of the hologram data by reducing the size of the reference beam. SOLUTION: The volume holographic digital data recording system is constituted so as to provide a light source for generating laser beams, a beam splitter for separating the laser beams to the reference beam and a signal beam, a spatial light modulator for modulating the signal beam to binary pixel data at a page unit on the basis of data inputted from the outside, a beam selection means for providing the reduced reference beam by making to pass through a selected area of the reference beam, a lens for deflecting the reduced reference beam toward a holographic medium, and a reflection means for making the reduced reference beam entered from the beam selection means to reflect to the incident position of the lens. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004334158A Holographic rom system 有权
公开(公告)号：JP2004334158A
公开(公告)日：2004-11-25
申请号：JP2003300220
申请日：2003-08-25
申请人： Daewoo Electronics Corp , 株式会社大宇エレクトロニクス
发明人： ROH JAE-WOO
IPC分类号： G03H1/26 , G03H1/08 , G03H1/18 , G11B7/0065 , G11B7/135
CPC分类号： G11B7/1353 , G03H1/02 , G03H1/0402 , G03H1/265 , G03H2001/0216 , G03H2001/0415 , G11B7/0065 , G11B7/1362
摘要： PROBLEM TO BE SOLVED: To provide a holographic ROM (read only memory) system having a simplified structure in which a conical mirror can easily be replaced for an angular multiplexing.
SOLUTION: The holographic ROM system is provided with a light source for generating a laser light necessary for holography, a beamexpander for expanding the laser light, and a mask which modulates part of the expanded laser light to produce a signal light projected on a holographic medium, passes the remainder of the expanded laser light to produce a reference light, and provides the reference light to a conical mirror which reflects the reference light toward the holographic medium. The holographic medium includes a recording region on which all of the reference light and signal light are to be projected and a transparent region which passes the reference light passed through the mask and provides the reference light to the conical mirror.
COPYRIGHT: (C)2005,JPO&NCIPI

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