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1. 发明授权

US6020985A Multilayer reflection microhologram storage in tape media 有权
标题翻译：磁带介质中的多层反射微孔图像存储
公开(公告)号：US6020985A
公开(公告)日：2000-02-01
申请号：US191314
申请日：1998-11-13
申请人： Robert R. McLeod , Sergei L. Sochava , Andrew J. Daiber , Mark E. McDonald , Lambertus Hesselink , Ingolf Sander , Timothy M. Slagle
发明人： Robert R. McLeod , Sergei L. Sochava , Andrew J. Daiber , Mark E. McDonald , Lambertus Hesselink , Ingolf Sander , Timothy M. Slagle
IPC分类号： G11B7/00 , G11B7/003 , G11B7/0065 , G11B7/125 , G11B7/135 , G11B15/62 , G03H1/26
CPC分类号： G11B7/1356 , G11B15/62 , G11B7/0065 , G11B7/127 , G03H2270/23 , G11B2007/0013 , G11B7/003 , G11B7/135
摘要： Digital data bits are stored as discrete-level reflection microholograms in a multi-depth digital optical data storage system. Reference and signal beams are incident in a counterpropagating geometry on opposite faces of a tape. The reflection microholograms are stored at the coinciding focus of the reference and signal beams. The holograms are stored at the diffraction limit of high-N.A. optics, and have relatively high grating frequencies and small sizes. Dynamic aberration compensators correct for the depth-varying spherical aberration imparted to the beams by the medium. Multiple mutually-incoherent lasers are used for parallel storage and retrieval to increase data transfer rates. Achievable densities and signal-to-noise ratios are substantially higher than for index-perturbation or transmission hologram storage methods.
摘要翻译：数字数据位作为离散级反射微时刻图存储在多深度数字光学数据存储系统中。参考信号光束和信号光束以相反的几何形状入射到磁带的相对面上。反射微积分线存储在参考和信号光束的重合焦点处。全息图以高N.A的衍射极限存储。光学元件，并具有较高的光栅频率和小尺寸。动态像差补偿器校正由介质赋予光束的深度变化的球面像差。多个相互不相干的激光器用于并行存储和检索以提高数据传输速率。可实现的密度和信噪比显着高于指数扰动或透射全息图存储方法。

2. 发明授权

US06614741B1 Optical data storage by selective localized alteration of a format hologram in a holographic storage disk 失效
标题翻译：通过全息存储盘中的格式全息图的选择性局部改变来进行光学数据存储
公开(公告)号：US06614741B1
公开(公告)日：2003-09-02
申请号：US09192165
申请日：1998-11-13
申请人： Lambertus Hesselink , Robert R. McLeod , Sergei L. Sochava
发明人： Lambertus Hesselink , Robert R. McLeod , Sergei L. Sochava
IPC分类号： G11B700
CPC分类号： G11B7/0065 , G03H2001/184 , G03H2260/12
摘要： Digital data bits are stored at storage locations at plural depths within a holographic medium of a holographic storage disk in the form of selective, localized alterations in a format hologram. Micro-localized regions of a reflection format hologram extending throughout the medium are deleted by focusing a high-power laser beam at desired storage locations. The deletion regions have a lower reflectivity than the surrounding parts of the format hologram. Tunable-focus storage and retrieval heads, as well as dynamic aberration compensators, are used for multi-depth access. Storage and retrieval may each be achieved with a single head.
摘要翻译：数字数据位以格式全息图的选择性，局部改变的形式存储在全息存储盘的全息介质内的多个深度的存储位置处。通过将高功率激光束聚焦在期望的存储位置，删除延伸穿过介质的反射格式全息图的微定位区域。删除区域具有比格式全息图的周围部分更低的反射率。可调焦点存储和检索头以及动态像差补偿器用于多深度访问。存储和检索可以单独实现。

3. 发明授权

US06212148B1 Optical data storage by selective localized alteration of a format hologram 失效
标题翻译：光学数据存储通过选择性地局部改变格式全息图
公开(公告)号：US06212148B1
公开(公告)日：2001-04-03
申请号：US09016382
申请日：1998-01-30
申请人： Lambertus Hesselink , Robert R. McLeod , Sergei L. Sochava , William Phillips
发明人： Lambertus Hesselink , Robert R. McLeod , Sergei L. Sochava , William Phillips
IPC分类号： G11B700
CPC分类号： G11B7/0065 , G03H2001/184 , G03H2260/12
摘要： Digital data bits are stored at storage locations at plural depths within a holographic storage medium as selective, localized alterations in a format hologram. Micro-localized regions of a reflection format hologram extending throughout the medium are deleted by focusing a high-power laser beam at desired storage locations. The deletion regions have a lower reflectivity than the surrounding parts of the format hologram. Tunable-focus storage and retrieval heads, as well as dynamic aberration compensators, are used for multi-depth access. Storage and retrieval may each be achieved with a single head.
摘要翻译：数字数据位存储在全息存储介质内的多个深度的存储位置处，作为格式全息图中的选择性，局部变化。通过将高功率激光束聚焦在期望的存储位置，删除延伸穿过介质的反射格式全息图的微定位区域。删除区域具有比格式全息图的周围部分更低的反射率。可调焦点存储和检索头以及动态像差补偿器用于多深度访问。存储和检索可以单独实现。

4. 发明授权

US06563779B1 Tracking error signal generation using confocally filtered detection 失效
标题翻译：使用并行滤波检测跟踪误差信号生成
公开(公告)号：US06563779B1
公开(公告)日：2003-05-13
申请号：US09595433
申请日：2000-06-15
申请人： Mark E. McDonald , Robert R. McLeod , Andrew J. Daiber
发明人： Mark E. McDonald , Robert R. McLeod , Andrew J. Daiber
IPC分类号： G11B700
CPC分类号： G11B7/0938 , G11B7/00781 , G11B7/0901 , G11B7/1381 , G11B7/24044 , G11B2007/0013
摘要： A tracking error signal generation apparatus and method which utilizes confocal detection with a split detector and a differencing circuit for generation of tracking error signals. A first lens is positioned in the path of a light beam returning from an optical medium. A pinhole is positioned in the path of the light beam after the first lens and proximate to the focal plane of the first lens. A second lens is positioned in the path of the light beam after the pinhole, and a split detector, having equal halves is positioned in the path of the light beam after the second lens. A differencing circuit is operatively coupled to each of the halves of the split detector. In operation, a light beam is focused by an optical head onto a track in the optical medium, and the reflection of the beam from the optical medium is directed through the first lens, through the pinhole, through the second lens, and onto the split detector. When the focus of the light beam is centered on the track, the reflected light reaching the split detector is evenly distributed on the two halves of the detector, such that the differencing circuit will generate a tracking error signal (TES) having nominally a zero value. When the focus of the light beam is off-center with respect to the track, the reflected light received by detector is unevenly distributed on the two halves of the detector such that the differencing circuit generates a non-zero tracking error signal, which will be of positive or negative value depending upon the direction off-center of the light beam focus spot. The tracking error signals thus generated are communicated to a servo system which will reposition the optical head to maintain the light beam focus spot on the center of the track.
摘要翻译：一种跟踪误差信号产生装置和方法，其利用具有分离检测器的共焦检测和用于产生跟踪误差信号的差分电路。第一透镜位于从光学介质返回的光束的路径中。针孔位于第一透镜之后的光束的路径中并且靠近第一透镜的焦平面。第二透镜位于针孔之后的光束的路径中，并且具有相等的一半的分割检测器位于第二透镜之后的光束的路径中。差分电路可操作地耦合到分离检测器的每个半部。在操作中，光束被光学头聚焦在光学介质中的轨道上，并且来自光学介质的光束的反射通过第一透镜，穿过针孔穿过第二透镜并被引导到分裂探测器。当光束的焦点以轨迹为中心时，到达分割检测器的反射光均匀分布在检测器的两半上，使得差分电路将产生标称为零值的跟踪误差信号（TES）。当光束的焦点相对于轨道偏心时，由检测器接收的反射光不均匀地分布在检测器的两半上，使得差分电路产生非零跟踪误差信号，这将是取决于光束聚焦点的偏心方向的正值或负值。如此生成的跟踪误差信号被传送到伺服系统，该伺服系统将重新定位光头以将光束聚焦点保持在轨道的中心。

5. 发明授权

US06322933B1 Volumetric track definition for data storage media used to record data by selective alteration of a format hologram 有权
标题翻译：用于通过选择性改变格式全息图来记录数据的数据存储介质的体积轨道定义
公开(公告)号：US06322933B1
公开(公告)日：2001-11-27
申请号：US09229457
申请日：1999-01-12
申请人： Andrew J. Daiber , Robert R. McLeod , Tokuyuki Honda
发明人： Andrew J. Daiber , Robert R. McLeod , Tokuyuki Honda
IPC分类号： G03H126
CPC分类号： G11B7/24085 , G03H1/30 , G11B7/0065 , Y10S430/146
摘要： A photoactive medium has a complex format grating written thereon, the complex format grating including at least three component gratings, each of the component gratings characterized by a unique grating vector. Methods for writing the complex format grating include the steps of providing a photoactive medium; and focussing a plurality of pairs of mutually coherent light beams into a focal plane in the medium.
摘要翻译：光敏介质具有写在其上的复杂格式光栅，复格式光栅包括至少三个分量光栅，每个分量光栅的特征在于唯一的光栅矢量。写入复杂格式光栅的方法包括提供光活性介质的步骤; 并将多对相互相干的光束聚焦到介质中的焦平面中。

6. 发明授权

US06549664B1 Sparse modulation codes for holographic data storage 失效
标题翻译：用于全息数据存储的稀疏调制码
公开(公告)号：US06549664B1
公开(公告)日：2003-04-15
申请号：US09343933
申请日：1999-06-30
申请人： Andrew J. Daiber , Robert R. McLeod , Ray Snyder
发明人： Andrew J. Daiber , Robert R. McLeod , Ray Snyder
IPC分类号： G06K936
CPC分类号： G03H1/26 , G11B7/0065
摘要： A method for storing data in a holographic storage medium comprises the steps of dividing a bit stream of binary data into data groups, encoding the data groups as binary patterns, and storing the binary patterns holographically as data pages. Each binary pattern comprises channel bits, wherein the number of “off” channel bits is greater than the number of “on” channel bits. To retrieve information from the storage medium, the medium is illuminated and resultant light signals are gathered. The light signals are converted to the binary patterns, and the binary patterns are converted to the data groups. Binary patterns stored in the storage medium only slightly perturb subsequent reading and writing of data, since the patterns have fewer “on” channel bits than “off” channel bits.
摘要翻译：一种用于在全息存储介质中存储数据的方法包括以下步骤：将二进制数据的位流划分为数据组，将数据组编码为二进制模式，并将二进制模式全息地存储为数据页。每个二进制模式包括信道位，其中“关”通道位的数量大于“通”位的数量。为了从存储介质检索信息，照明介质并收集合成的光信号。光信号被转换为二进制模式，二进制模式被转换成数据组。存储在存储介质中的二进制模式仅稍微扰乱后续的数据读取和写入，因为模式比“关闭”通道位具有更少的“开”通道位。

7. 发明授权

US06269057B1 Focus error signal generation using a birefringent lens with confocal detection 有权
标题翻译：使用共聚焦检测的双折射透镜产生聚焦误差信号
公开(公告)号：US06269057B1
公开(公告)日：2001-07-31
申请号：US09229138
申请日：1999-01-12
申请人： Mark E. McDonald , Robert R. McLeod
发明人： Mark E. McDonald , Robert R. McLeod
IPC分类号： G11B700
CPC分类号： G11B7/1372 , G11B7/0908 , G11B7/1381
摘要： An improved focus error signal generator device including two optical lenses in series; a birefringent optical lens followed by a standard optical lens, the lenses being disposed in the path of a return read beam wherein the birefringent optical lens has a first and second focal plane. A pinhole is disposed in the path of the return read beam in close proximity to the first and second focal planes. A polarizing beam splitter is positioned after the second focal plane and serves to split the return read beam into two light beams of polarization associated with the first and second focal planes. First and second detectors are positioned so as to read the two light beams signals output from the polarizing beam splitter and the detectors are connected to an electrical differencing circuit having an output to an optical head servo system.
摘要翻译：一种改进的聚焦误差信号发生器装置，包括串联的两个光学透镜; 双折射光学透镜后面是标准光学透镜，透镜设置在返回读取光束的路径中，其中双折射光学透镜具有第一和第二焦平面。针孔布置在返回读取光束的路径中，紧邻第一和第二焦平面。偏振分束器位于第二焦平面之后，用于将返回读取光束分成与第一和第二焦平面相关联的两个偏振光束。定位第一和第二检测器以便读取从偏振分束器输出的两个光束信号，并且检测器连接到具有到光学头伺服系统的输出的电差分电路。

8. 发明授权

US06288986B1 Focus error signal generation using a birefringent plate with confocal detection 有权
标题翻译：使用具有共聚焦检测的双折射板产生聚焦误差信号
公开(公告)号：US06288986B1
公开(公告)日：2001-09-11
申请号：US09229012
申请日：1999-01-12
申请人： Mark E. McDonald , Robert R. McLeod
发明人： Mark E. McDonald , Robert R. McLeod
IPC分类号： G11B700
CPC分类号： G11B7/1381 , G11B7/0908 , G11B7/0916 , G11B7/0917
摘要： An improved focus error signal generator device and an optical data delivery and detection system including an optical lens disposed in the path of a return read beam and a birefringent plate disposed in the path of the return beam of light after the optical lens, wherein the birefringent plate provides for a first and second focal plane of corresponding first and second polarization. A pinhole is disposed in the path of the return read beam after the birefringent plate and in close proximity to first and second focal planes. A polarizing beam splitter is positioned after the second focal plane and serves to split the return read beam into two light beams of first and second polarization. First and second detectors are disposed in the path of corresponding first and second polarization light beams. The detectors are connected to the inputs of an electrical differencing circuit that has an output to an optical head servo system.
摘要翻译：一种改进的聚焦误差信号发生器装置和光学数据传送和检测系统，包括设置在返回读取光束的路径中的光学透镜和布置在光学透镜之后的返回光束的路径中的双折射板，其中双折射板提供相应的第一和第二极化的第一和第二焦平面。在双折射板之后并且靠近第一焦平面和第二焦平面，针孔设置在返回读取光束的路径中。偏振分束器位于第二焦平面之后，用于将返回读取光束分成两束第一和第二偏振光束。第一和第二检测器设置在对应的第一和第二偏振光束的路径中。检测器连接到具有输出到光头伺服系统的电差分电路的输入端。

9. 发明授权

US6111828A Focus error signal generation using confocally filtered detection 有权
标题翻译：使用并行滤波检测的聚焦误差信号生成
公开(公告)号：US6111828A
公开(公告)日：2000-08-29
申请号：US229140
申请日：1999-01-12
申请人： Robert R. McLeod , Mark E. McDonald
发明人： Robert R. McLeod , Mark E. McDonald
IPC分类号： G11B7/09 , G11B7/12
CPC分类号： G11B7/0908 , G11B7/094 , G11B2007/0013 , G11B7/0065
摘要： A focus error signal generator device including first and second optical lenses disposed in the respective paths of first and second light beams derived from the return read beam wherein the first and second optical lens have corresponding points of focus, and first and second detectors disposed in the corresponding paths of the first and second light beams located after the points of focus. First and second pinholes are disposed in the corresponding paths of the first and second light beams after the corresponding optical lens and before the corresponding detector, and an electrical differencing circuit having inputs to the first and second detectors and an output to an optical head servo system. A method for focus error signal includes the steps of focussing first and second light beams derived from a return read beam at corresponding first and second points of focus; providing for first and second detectors disposed in the path of corresponding first and second light beams after corresponding first and second points of focus; providing for first and second pinholes in the path of corresponding first and second light beams; and generating a focus error signal related to the difference between the output of the first detector and an output of the second detector. An optical data delivery and detection system comprises a laser source emitting a light beam, an optical head that receives the light beam, optical lenses within the optical head that focus the light beam on an optical storage media, a data detector that receives the light beam on the beam's return path and provides data signals and the focus error generator device described above.
摘要翻译：一种聚焦误差信号发生器装置，包括设置在从返回读取光束导出的第一和第二光束的相应路径中的第一和第二光学透镜，其中第一和第二光学透镜具有对应的焦点，第一和第二检测器设置在位于焦点之后的第一和第二光束的相应路径。第一和第二针孔布置在相应的光学透镜之后和相应的检测器之前的第一和第二光束的相应路径中，以及电差分电路，其具有到第一和第二检测器的输入以及输出到光学头伺服系统。一种用于聚焦误差信号的方法包括以下步骤：在对应的第一和第二聚焦点聚焦从返回读取光束导出的第一和第二光束; 提供布置在对应的第一和第二光束的对应的第一和第二聚焦点的路径中的第一和第二检测器; 在对应的第一和第二光束的路径中提供第一和第二针孔; 以及产生与第一检测器的输出和第二检测器的输出之间的差异相关的聚焦误差信号。光学数据传送和检测系统包括发射光束的激光源，接收光束的光学头，将光束聚焦在光学存储介质上的光学头内的光学透镜，接收光束的数据检测器在光束的返回路径上，并提供数据信号和上述聚焦误差发生器装置。

10. 发明申请

US20120092632A1 DIFFRACTION UNLIMITED PHOTOLITHOGRAPHY 失效
标题翻译：衍射无限光刻技术
公开(公告)号：US20120092632A1
公开(公告)日：2012-04-19
申请号：US13078485
申请日：2011-04-01
申请人： Robert R. McLeod , Christopher N. Bowman , Timothy F. Scott , Amy C. Sullivan
发明人： Robert R. McLeod , Christopher N. Bowman , Timothy F. Scott , Amy C. Sullivan
IPC分类号： G03B27/42 , C08K5/18 , G03F7/075 , G03F7/031 , G03F7/20 , G03F7/004
CPC分类号： G03F7/00 , C08K5/0025 , C08K5/18 , G02B5/32 , G03F7/0037 , G03F7/027 , G03F7/0275 , G03F7/031 , G03F7/095 , G03F7/203 , G03F7/2051
摘要： Methods, devices, systems, and materials are disclosed for diffraction unlimited photofabrication. A method is provided where a photoresponsive material is illuminated with a first optical pattern at a first wavelength of light. The first wavelength of light alters a solubility of the photoresponsive organic material. The photoresponsive material is also illuminated with a second optical pattern at a second wavelength of light. The second wavelength of light hinders the ability of the first wavelength of light to alter the solubility of the photoresponsive organic material where the second optical pattern overlaps the first optical pattern. The photoresponsive organic material is then developed.
摘要翻译：公开了用于衍射无限制造的方法，装置，系统和材料。提供一种方法，其中光响应材料在第一波长的光下用第一光学图案照亮。光的第一波长改变光响应有机材料的溶解度。光响应材料也用第二波长的光照射第二光学图案。光的第二波长阻碍第一波长的光改变光响应有机材料在第二光学图案与第一光学图案重叠的溶解度的能力。然后开发光响应有机材料。

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