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公开(公告)号：US07589875B2
公开(公告)日：2009-09-15
申请号：US11641200
申请日：2006-12-18
申请人： Frank Przygodda , Oliver Malki , Dietmar Braeuer
发明人： Frank Przygodda , Oliver Malki , Dietmar Braeuer
CPC分类号： G11B7/0065
摘要： The present invention relates to a method for recording data pages in a holographic recording medium, and more specifically to a method for compensating for sensitivity variations of the holographic material of the holographic recording medium. According to the invention, a method for recording data pages on a holographic recording medium has the steps of: modulating a light beam with a spatial light modulator to generate a data page with data to be recorded, and applying a compensation profile to the data pages during recording for reducing contrast variations in the reconstructed data pages, wherein the compensation profile is determined from the irradiation history at the recording position and the sensitivity curve of the material of the holographic recording medium.
摘要翻译： 本发明涉及用于在全息记录介质中记录数据页的方法，更具体地说，涉及用于补偿全息记录介质的全息材料的灵敏度变化的方法。 根据本发明，用于在全息记录介质上记录数据页的方法包括以下步骤：利用空间光调制器调制光束以产生具有待记录数据的数据页，并向数据页应用补偿简档 在记录期间，用于减少重建数据页中的对比度变化，其中根据记录位置处的照射历史和全息记录介质的材料的灵敏度曲线来确定补偿曲线。
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12.发明授权Pre-exposure and curing of photo-sensitive material for optical data storage 有权用于光学数据存储的光敏材料的预曝光和固化公开(公告)号：US07965430B2
公开(公告)日：2011-06-21
申请号：US11986003
申请日：2007-11-19
申请人： Wolfgang Hossfeld , Frank Przygodda
发明人： Wolfgang Hossfeld , Frank Przygodda
CPC分类号： G03H1/18 , G03H1/02 , G03H1/181 , G03H1/182 , G03H2001/0264 , G03H2001/185 , G03H2225/24 , G11B7/0065 , G11B7/128 , G11B7/1362
摘要： The present invention relates to an apparatus for writing to optical storage media capable of performing pre-exposure and/or curing of a photo-sensitive material for optical data storage, in particular for holographic data storage.The apparatus has a first light source for emitting a first light beam, a second light source for emitting a second light beam, and a spatial light modulator, which is switchable between at least two states for spatially modulating at least a part of the first light beam, and which is arranged such that in a first state it directs the first light beam towards an optical storage medium, and that in a second state it directs the second light beam towards the optical storage medium.
摘要翻译： 本发明涉及一种写入光学存储介质的设备，该光学存储介质能够进行用于光学数据存储的光敏材料的预曝光和/或固化，特别是用于全息数据存储。 该装置具有用于发射第一光束的第一光源，用于发射第二光束的第二光源，以及可在至少两个状态之间切换的空间光调制器，用于空间调制第一光的至少一部分 并且其被布置成使得在第一状态下，它将第一光束引向光学存储介质，并且在第二状态下，它将第二光束引导到光学存储介质。
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13.发明授权公开(公告)号：US07876482B2
公开(公告)日：2011-01-25
申请号：US11786345
申请日：2007-04-10
申请人： Joachim Knittel , Frank Przygodda
发明人： Joachim Knittel , Frank Przygodda
IPC分类号： G03H1/22
CPC分类号： G03H1/22 , G03H2001/2223 , G03H2001/2289 , G11B7/0065 , G11B7/1374 , G11B2007/13727 , Y10S359/90
摘要： A method for compensating for a wavelength mismatch between a readout reference beam and a recording reference beam in a holographic storage system is described. In order to compensate for a wavelength mismatch in a first step the wavelength mismatch is determined. In a second step the direction of at least part of the readout reference beam is adjusted relative to a holographic storage medium in dependence on the determined wavelength mismatch by defocusing the readout reference beam or by adjusting the focal length of an objective lens for focusing the readout reference beam into the holographic storage medium.
摘要翻译： 描述了在全息存储系统中补偿读出参考光束和记录参考光束之间的波长失配的方法。 为了补偿第一步骤中的波长不匹配，确定波长不匹配。 在第二步骤中，读取参考光束的至少一部分的方向相对于全息存储介质根据所确定的波长不匹配进行调整，通过使读出的参考光束散焦或通过调整用于聚焦读出的物镜的焦距 参考光束进入全息存储介质。
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公开(公告)号：US20090051990A1
公开(公告)日：2009-02-26
申请号：US12218002
申请日：2008-07-10
申请人： Frank Przygodda , Joachim Knittel
发明人： Frank Przygodda , Joachim Knittel
IPC分类号： G03H1/02
CPC分类号： G03H1/16 , G11B7/0065 , G11B7/128 , G11C13/042
摘要： The present invention relates to a phase mask for holographic data storage, and to a method and an apparatus for reading from and/or writing to holographic storage media using such a phase mask.According to the invention, the phase mask has a plurality of phase cells, whose size is equal to an integer multiple of the size of the pixels of a spatial light modulator of the apparatus. The phase cells have a phase variation on sub-cell scale, which is inverse for essentially half the number of phase cells.
摘要翻译： 本发明涉及用于全息数据存储的相位掩模以及使用这种相位掩模从全息存储介质读取和/或写入全息存储介质的方法和装置。 根据本发明，相位掩模具有多个相位单元，其尺寸等于该装置的空间光调制器的像素尺寸的整数倍。 相位单元在子单元尺度上具有相位变化，其基本上相对于相位单元数量的一半是相反的。
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公开(公告)号：US20070165290A1
公开(公告)日：2007-07-19
申请号：US11641200
申请日：2006-12-18
申请人： Frank Przygodda , Oliver Malki , Dietmar Braeuer
发明人： Frank Przygodda , Oliver Malki , Dietmar Braeuer
IPC分类号： G03H1/28
CPC分类号： G11B7/0065
摘要： Intensity profile correction for data pages for holographic storageThe present invention relates to a method for recording data pages in a holographic recording medium, and more specifically to a method for compensating for sensitivity variations of the holographic material of the holographic recording medium. According to the invention, a method for recording data pages on a holographic recording medium has the steps of:modulating a light beam with a spatial light modulator to generate a data page with data to be recorded, andapplying a compensation profile to the data pages during recording for reducing contrast variations in the reconstructed data pages, wherein the compensation profile is determined from the irradiation history at the recording position and the sensitivity curve of the material of the holographic recording medium.
摘要翻译： 用于全息存储的数据页的强度分布校正技术领域本发明涉及用于在全息记录介质中记录数据页的方法，更具体地说，涉及用于补偿全息记录介质的全息材料的灵敏度变化的方法。 根据本发明，用于在全息记录介质上记录数据页的方法包括以下步骤：利用空间光调制器调制光束以产生具有待记录数据的数据页，并向数据页应用补偿简档 在记录期间，用于减少重建数据页中的对比度变化，其中根据记录位置处的照射历史和全息记录介质的材料的灵敏度曲线来确定补偿曲线。
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16.发明授权公开(公告)号：US08189249B2
公开(公告)日：2012-05-29
申请号：US11894470
申请日：2007-08-21
申请人： Frank Przygodda
发明人： Frank Przygodda
CPC分类号： G03H1/22 , G03H1/16 , G03H2225/32 , G11B7/0065 , G11B7/083 , G11B7/1369
摘要： The present invention relates to a holographic storage system, and more specifically to a method for pixel detection in a coaxial holographic storage system.In a holographic storage system according to the invention, with a coaxial arrangement of an object beam and a reference beam the bright pixels within the object beam have a phase shift of essentially π relative to the reference beam. For readout of a data page contained in a reconstructed object beam a detector detects an interference pattern generated by the interference between the reference beam and the reconstructed object beam.
摘要翻译： 全息存储系统技术领域本发明涉及一种全息存储系统，更具体地涉及一种同轴全息存储系统中的像素检测方法。 在根据本发明的全息存储系统中，通过对象光束和参考光束的同轴布置，物体光束内的明亮像素具有基本上相位的相移; 相对于参考光束。 为了读出包含在重建的物体光束中的数据页，检测器检测由参考光束和重建的物体光束之间的干涉产生的干涉图案。
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公开(公告)号：US08169676B2
公开(公告)日：2012-05-01
申请号：US12381686
申请日：2009-03-16
申请人： Frank Przygodda , Joachim Knittel
发明人： Frank Przygodda , Joachim Knittel
CPC分类号： G11B7/0065 , G03H1/28 , G03H2222/20
摘要： An apparatus for reading from and/or writing to holographic storage media is described, and more specifically an apparatus for reading from and/or writing to holographic storage media with two or more reference beams that overlap inside the holographic storage medium for reading and/or writing a single hologram. The two or more reference beams are mutually incoherent during reading and/or writing.
摘要翻译： 描述了一种用于从全息存储介质读取和/或写入到全息存储介质的装置，更具体地说，一种用于从具有两个或更多个参考光束的全息存储介质读取和/或写入具有两个或更多个参考光束的装置，该参考光束在全息存储介质内重叠用于读取和/ 写一个单一的全息图。 在读取和/或写入期间，两个或更多个参考光束相互不相干。
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公开(公告)号：US07990594B2
公开(公告)日：2011-08-02
申请号：US12218002
申请日：2008-07-10
申请人： Frank Przygodda , Joachim Knittel
发明人： Frank Przygodda , Joachim Knittel
IPC分类号： G02B5/32
CPC分类号： G03H1/16 , G11B7/0065 , G11B7/128 , G11C13/042
摘要： The present invention relates to a phase mask for holographic data storage, and to a method and an apparatus for reading from and/or writing to holographic storage media using such a phase mask.According to the invention, the phase mask has a plurality of phase cells, whose size is equal to an integer multiple of the size of the pixels of a spatial light modulator of the apparatus. The phase cells have a phase variation on sub-cell scale, which is inverse for essentially half the number of phase cells.
摘要翻译： 本发明涉及用于全息数据存储的相位掩模以及使用这种相位掩模从全息存储介质读取和/或写入全息存储介质的方法和装置。 根据本发明，相位掩模具有多个相位单元，其尺寸等于该装置的空间光调制器的像素尺寸的整数倍。 相位单元在子单元尺度上具有相位变化，其基本上相对于相位单元数量的一半是相反的。
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公开(公告)号：US20110007620A1
公开(公告)日：2011-01-13
申请号：US12736245
申请日：2009-03-16
申请人： Joachim Knittel , Frank Przygodda
发明人： Joachim Knittel , Frank Przygodda
IPC分类号： G11B7/0065
CPC分类号： G03H1/04 , G03H2001/0417 , G03H2210/22 , G03H2223/13 , G03H2225/55 , G11B7/00772 , G11B7/128
摘要： A data page for use in a holographic data storage system, and to a method and an apparatus for writing to holographic storage media using such a data page are described. The data page has dark zones for each boundary between phase blocks of a phase mask of the holographic data storage system, which consist of switched-off pixels that are not used for encoding data, and which coincide with the boundaries between the phase blocks.
摘要翻译： 描述了在全息数据存储系统中使用的数据页，以及使用这样的数据页向全息存储介质写入方法和装置。 数据页面对于全息数据存储系统的相位掩模的相位块之间的每个边界具有暗区域，其由不用于编码数据的关闭像素组成，并且与相位块之间的边界一致。
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20.发明授权公开(公告)号：US07596463B2
公开(公告)日：2009-09-29
申请号：US12075569
申请日：2008-03-12
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G11B7/00781 , G11B7/24044
摘要： The present invention relates to a method for calibrating a holographic storage system, and to an apparatus for reading from and/or writing to holographic storage media and a holographic storage medium suitable for such method. According to the invention, the method has the steps of: sending a set of test data pages through at least part of the holographic storage system; receiving a set of transmitted test data pages with a detector; comparing the set of transmitted test data pages with the set of sent test data pages; and correcting parameter variations of the holographic storage system based on the results of the comparing step.
摘要翻译： 本发明涉及一种用于校准全息存储系统的方法，以及用于从全息存储介质读取和/或写入全息存储介质和适用于这种方法的全息存储介质的装置。 根据本发明，该方法具有以下步骤：通过全息存储系统的至少一部分发送一组测试数据页; 用检测器接收一组发送的测试数据页; 将发送的测试数据页面集合与发送的测试数据页面集合进行比较; 以及基于比较步骤的结果来校正全息存储系统的参数变化。
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