-
公开(公告)号：US08493479B2
公开(公告)日：2013-07-23
申请号：US13094973
申请日：2011-04-27
IPC分类号： H04N5/217
CPC分类号： G06K9/00577 , G07D7/2008
摘要： A method of eliminating background noise from a system for authenticating security markers includes capturing an image of a background of the security marker; illuminating the security marker; capturing a plurality of images of the optical response of the security marker; averaging the plurality of optical response images; smoothing the background image; and subtracting the smoothed background image from the average of the plurality of optical response images.
摘要翻译： 一种从用于认证安全标记的系统中消除背景噪声的方法包括捕获安全标记的背景的图像; 照亮安全标记; 捕获安全标记的光学响应的多个图像; 对所述多个光学响应图像进行平均; 平滑背景图像; 以及从所述多个光学响应图像的平均值中减去平滑的背景图像。
-
公开(公告)号：US08398888B2
公开(公告)日：2013-03-19
申请号：US13371718
申请日：2012-02-13
申请人： Myra T. Olm , Thomas D. Pawlik , Erwin L. Allmann
发明人： Myra T. Olm , Thomas D. Pawlik , Erwin L. Allmann
CPC分类号： G07D7/2041 , B41M3/144
摘要： A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula: [(x−z)2/(Sx2+Sz2)]1/2>1 wherein x and z are the volume-weighted mean equivalent-spherical diameters of the two particle distributions and Sx and Sz are the standard deviations of the same two distributions.
摘要翻译： 包括选自具有不同尺寸分布的至少两个组的发射颗粒和尺寸分布的安全性标记材料满足以下公式：[（x-z）2 /（Sx2 + Sz2）] 1/2> 1其中x和z是 两个粒子分布的体积加权平均当量球直径和Sx和Sz是相同两个分布的标准偏差。
-
公开(公告)号：US08153984B2
公开(公告)日：2012-04-10
申请号：US12337752
申请日：2008-12-18
申请人： Myra T. Olm , Thomas D. Pawlik , Erwin L. Allmann
发明人： Myra T. Olm , Thomas D. Pawlik , Erwin L. Allmann
CPC分类号： G07D7/2041 , B41M3/144
摘要： A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula: [(x−z)2/(Sx2 +Sz2)]1/2 >1 wherein x and z are the volume-weighted mean equivalent-spherical diameters of the two particle distributions and Sx and Sz are the standard deviations of the same two distributions. The emissive materials are placed in or on an item. The emissive materials are excited with electromagnetic radiation in one or more specified spectral bands. The electromagnetic radiation is detected in one or more spectral bands from the emissive materials in an image-wise fashion. The attributes of the image are analyzed and characterized and are compared to authentication criteria to determine the authenticity of the marked item.
摘要翻译： 包括选自具有不同尺寸分布的至少两个组的发射颗粒和尺寸分布的安全性标记材料满足以下公式：[（x-z）2 /（Sx2 + Sz2）] 1/2> 1其中x和z是 两个粒子分布的体积加权平均当量球直径和Sx和Sz是相同两个分布的标准偏差。 发射材料放置在物品中或上。 发射材料在一个或多个指定光谱带中用电磁辐射激发。 以成像方式从发射材料的一个或多个光谱带中检测电磁辐射。 对图像的属性进行分析和表征，并将其与认证标准进行比较，以确定标记项目的真实性。
-
公开(公告)号：US5614358A
公开(公告)日：1997-03-25
申请号：US441489
申请日：1995-05-15
申请人： Robert D. Wilson , Myra T. Olm , Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Xin Wen
发明人： Robert D. Wilson , Myra T. Olm , Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Xin Wen
CPC分类号： G03C1/08 , G03C1/0051 , G03C1/46
摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that increased speed and contrast as well as improvements in speed-granularity relationships can be realized when the surface chemical sensitization sites include epitaxially deposited silver halide protrusions forming epitaxial junctions with the tabular grains, the protrusions (a) being located on up to 50 percent of the surface area of the tabular grains, (b) having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions, and (c) forming a face centered cubic crystal lattice.In further improving photographic performance by incorporating a photographically useful dopants, it has been observed that iridium placed in the ultrathin tabular grains and a shallow electron trapping site providing dopant placed in the silver halide protrusions can together increase photographic speed and reduce high intensity reciprocity failure.
摘要翻译： 公开了化学和光谱增感的超薄片状颗粒乳剂，其包括具有{111}主面的片状颗粒（a），（b）基于银含有大于70摩尔％的溴化物，（c）占总量的90％以上 （d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 已经观察到，当表面化学增感部位包括形成与片状颗粒的外延结的外延淀积的卤化银突起时，可以实现速度和对比度的提高以及速度 - 粒度关系的改善，突起（a）位于上面 至（b）具有比至少部分片状颗粒形成与突起外延结合的整体溶解度更好的表面积，（c）形成面心立方晶格。 通过掺入摄影有用的掺杂剂来进一步提高照相性能，已经观察到放置在超薄片状晶粒中的铱和提供放置在卤化银突起中的掺杂物的浅电子俘获位置可以一起增加照相速度并降低高强度互易失效。
-
公开(公告)号：US5576172A
公开(公告)日：1996-11-19
申请号：US442232
申请日：1995-05-15
CPC分类号： G03C1/0051 , G03C1/08 , G03C1/09
摘要： A tabular grain emulsion is disclosed that combines increased speed, reduced low intensity reciprocity failure, and low levels of pressure sensitivity. The tabular grains containing greater than 70 mole percent bromide and laminae located adjacent the {111} major faces each having a thickness of less than 35 nanometers and containing at least 1 mole percent higher iodide than a host portion of the tabular grains on which they are deposited. The tabular grains contain an iridium dopant capable of reducing low intensity failure in one interior grain portion and a Group 8 speed enhancing dopant present in a concentration of from 20 to 300 molar parts per million in another interior grain portion separated from the iridium containing grain portion by at least 10 percent of the silver forming the grain structure.
摘要翻译： 公开了一种片状颗粒乳剂，其结合了增加的速度，降低的低强度互易性故障和低水平的压力敏感性。 含有大于70摩尔％溴化物的片状颗粒和位于{111}主面附近的薄片各自具有小于35纳米的厚度，并且含有比它们的片状颗粒的主体部分高至少1摩尔％的碘化物 存放 片状颗粒含有能够降低一个内部颗粒部分中的低强度破坏的铱掺杂剂和在与含有铱的颗粒部分分离的另一内部颗粒部分中存在的浓度为20至300摩尔百万分之一的第8族速度增强掺杂剂 至少10％的银形成晶粒结构。
-
26.发明授权
公开(公告)号：US5536632A
公开(公告)日：1996-07-16
申请号：US441132
申请日：1995-05-15
申请人： Xin Wen , Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Myra T. Olm , Robert D. Wilson
发明人： Xin Wen , Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Myra T. Olm , Robert D. Wilson
CPC分类号： G03C1/0051 , G03C1/08 , G03C1/46
摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.Improved sensitivity is observed when the surface chemical sensitization sites include silver halide protrusions of a face centered cubic crystal lattice structure forming epitaxial junctions with the tabular grains and having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions and a sensitivity enhancing combination of dopants are contained in the silver halide grains including a first sensitivity enhancing dopant capable of providing shallow electron trapping sites and a second sensitivity enhancing selenium dopant. To further enhance sensitivity, one of the sensitivity enhancing dopants is restricted to the tabular grains while the other is restricted to the silver halide epitaxy.
摘要翻译： 公开了化学和光谱增感的超薄片状颗粒乳剂，其包括具有{111}主面的片状颗粒（a），（b）基于银含有大于70摩尔％的溴化物，（c）占总量的90％以上 （d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 当表面化学增感部位包括面心立方晶格结构的卤化银突起形成与片状颗粒形成外延结和具有比至少部分形成与凸起的外延结的片状颗粒更高的总体溶解度时，观察到灵敏度提高 并且包含掺杂剂的敏感度增强组合包含在包含能够提供浅电子捕获位点的第一灵敏度增强掺杂剂和第二灵敏度增强硒掺杂剂的卤化银颗粒中。 为了进一步提高灵敏度，灵敏度增强掺杂剂之一限于片状晶粒，而另一种限于卤化银外延。
-
公开(公告)号：US5494789A
公开(公告)日：1996-02-27
申请号：US359251
申请日：1994-12-19
申请人： Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Myra T. Olm , Xin Wen , Robert D. Wilson
发明人： Richard L. Daubendiek , Donald L. Black , Joseph C. Deaton , Timothy R. Gersey , Joseph G. Lighthouse , Myra T. Olm , Xin Wen , Robert D. Wilson
IPC分类号： G03C1/00 , G03C1/005 , G03C1/015 , G03C1/035 , G03C1/07 , G03C1/08 , G03C1/09 , G03C1/10 , G03C1/46 , G03C7/00
CPC分类号： G03C1/08 , G03C1/0051 , G03C1/46
摘要： An improved spectrally sensitized ultrathin tabular grain emulsion is disclosed in which tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, (e) exhibiting an average thickness of less than 0.07 .mu.m, and (f) having latent image forming chemical sensitization sites on the surfaces of the tabular grains, are spectrally sensitized and improved by employing in forming the surface chemical sensitization sites at least one silver salt epitaxially located on the tabular grains. A photographic element is disclosed comprised of a support, a first silver halide emulsion layer coated on the support and sensitized to produce a photographic record when exposed to specular light within the minus blue visible wavelength region of from 500 to 700 nm, a second silver halide emulsion layer capable of producing a second photographic record coated over the first silver halide emulsion layer to receive specular minus blue light intended for the exposure of the first silver halide emulsion layer, the second silver halide emulsion layer being capable of acting as a transmission medium for the delivery of at least a portion of the minus blue light intended for the exposure of the first silver halide emulsion layer in the form of specular light, wherein the second silver halide emulsion layer is comprised of the improved spectrally sensitized ultrathin tabular grain emulsion of the invention.
摘要翻译： 公开了一种改进的光谱增感超薄片状颗粒乳剂，其中具有{111}主面的片状颗粒（a）（b）含有大于70摩尔百分比的溴化银，基于银，（c）占总量的90％以上 颗粒投影面积，（d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm，（f）在该表面上具有潜像形成化学增感点 片状颗粒通过在表面化学增感位点上形成至少一个外延位于片状颗粒上的银盐而被光谱增感和改进。 公开了一种照相元件，其包括支撑体，涂覆在载体上的第一卤化银乳剂层，并且当暴露于500-700nm的负蓝色可见光波长区域内的镜面光时被致敏以产生照相记录，第二卤化银 乳剂层，其能够产生涂覆在第一卤化银乳剂层上的第二照相记录，以接收用于暴露第一卤化银乳剂层的镜面负蓝光，第二卤化银乳剂层能够用作传播介质 输送用于以镜面光的形式暴露第一卤化银乳剂层的至少一部分负蓝光，其中第二卤化银乳剂层由改进的光谱增感的超薄片状颗粒乳剂组成， 发明。
-
公开(公告)号：US5457021A
公开(公告)日：1995-10-10
申请号：US243675
申请日：1994-05-16
申请人： Myra T. Olm , Woodrow G. McDugle , Sherrill A. Puckett , Traci Y. Kuromoto , Raymond S. Eachus , Eric L. Bell , Robert D. Wilson
发明人： Myra T. Olm , Woodrow G. McDugle , Sherrill A. Puckett , Traci Y. Kuromoto , Raymond S. Eachus , Eric L. Bell , Robert D. Wilson
CPC分类号： G03C1/07 , G03C1/0053 , G03C1/08 , G03C2001/03594 , G03C2001/0845 , G03C2001/094 , G03C2200/01
摘要： A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 14 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.
摘要翻译： 公开了制备辐射敏感卤化银乳剂的方法，其包括在分散介质中在金属六配位体或具有至少一个有机配体的四配位络合物存在下使银和卤离子反应，并且至少一半的卤化物占据了金属配位位点 或拟卤化物配体。 形成络合物的金属选自周期表4,5和6以及组3至14，包括元素周期表。 将过渡金属离子掺杂剂和至少一种有机配体掺入卤化银颗粒的立方晶格可以用于改善照相性能。
-
公开(公告)号：US08937712B2
公开(公告)日：2015-01-20
申请号：US13587119
申请日：2012-08-16
CPC分类号： G06K9/74 , B41M3/144 , G01N21/6408 , G01N21/643 , G07C9/00 , G07D7/1205 , G07D7/2083
摘要： A method of enabling an authenticating device (10) includes providing an enabling target (17); measuring one or more attributes of the enabling target with the authenticating device; comparing at least one measured attribute with a predetermined expected value; enabling the authenticating device when the at least one measured attribute matches the predetermined expected value; and operating the authenticating device.
摘要翻译： 一种启用认证设备（10）的方法包括提供启用目标（17）; 使用认证设备测量启用目标的一个或多个属性; 将至少一个测量属性与预定的预期值进行比较; 当所述至少一个测量属性与所述预定期望值匹配时，启用所述认证设备; 并操作认证设备。
-
公开(公告)号：US08893974B2
公开(公告)日：2014-11-25
申请号：US13690161
申请日：2012-11-30
申请人： Thomas D. Pawlik , Myra T. Olm
发明人： Thomas D. Pawlik , Myra T. Olm
CPC分类号： G06K7/10 , G06K7/10544 , G06K19/14
摘要： A method for detecting reproduction of barcodes (12) includes providing a barcode which contains data; providing a copy-evident background (14); capturing an image of the barcode and the copy-evident background; locating and decoding the barcode; detecting copy introduced changes in the copy-evident background; and authenticating the barcode if the copy-evident background has not been copied.
摘要翻译： 一种用于检测条形码（12）的再现的方法包括：提供包含数据的条形码; 提供复制背景（14）; 捕获条形码的图像和复制背景; 定位和解码条形码; 检测副本介绍了复制背景中的变化; 并且如果没有复制明文背景，则对条形码进行认证。
-
-
-
-
-
-
-
-
-
搜索结果
55 条记录 (耗时 0.042 秒)
