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    • 5. 发明申请
    • Multi-Channel Digital Watermarking
    • 多通道数字水印
    • US20120288135A1
    • 2012-11-15
    • US13291878
    • 2011-11-08
    • Robert L. JonesJoel R. MeyerKenneth L. LevySteven W. Stewart
    • Robert L. JonesJoel R. MeyerKenneth L. LevySteven W. Stewart
    • G06K9/62
    • B42D25/333B42D25/00B42D25/23G06K7/12G06K19/06046G07D7/12
    • The present disclosure relates generally to digital watermarking including watermarking conveyed through multiple channels. One claim recites a method to detect digital watermarks carried in different channels of a physical object. The method comprising: receiving first optically captured image data, the first optically captured image data corresponding to a first channel which is detectable with visible lighting; receiving second optically captured image data, the second optically captured image data corresponding to a second channel with is detectable in a first non-visible spectrum; receiving third optically captured image data, the third optically captured image data corresponding to a third channel with is detectable in a second non-visible spectrum; and using a programmed electronic processor, analyzing the first, second and third optically captured image data to detect watermark components embedded therein. Of course, other claims and combinations are provided too.
    • 本公开一般涉及包括通过多个信道传送的水印的数字水印。 一种说法背景是检测在物理对象的不同通道中携带的数字水印的方法。 该方法包括:接收第一光学捕获图像数据,对应于可见光可检测的第一通道的第一光学捕获图像数据; 接收第二光学捕获图像数据,对应于第二信道的第二光学捕获图像数据在第一不可见光谱中是可检测的; 接收第三光学捕获图像数据,对应于第三通道的第三光学捕获图像数据在第二不可见光谱中是可检测的; 以及使用编程的电子处理器,分析第一,第二和第三光学捕获的图像数据以检测嵌入其中的水印分量。 当然,也提供其他权利要求和组合。
    • 6. 发明授权
    • Apparatus to analyze security features on objects
    • 分析物体上的安全特征的装置
    • US08123134B2
    • 2012-02-28
    • US12844651
    • 2010-07-27
    • Alastair M. ReedRobert L. Jones
    • Alastair M. ReedRobert L. Jones
    • G06K19/06
    • B42D25/378B41M3/144B42D25/00B42D25/23B42D25/382B42D25/387B42D25/41G07D7/0043G07D7/12G07D7/1205G07D7/206G07F7/08G07F7/125
    • The present disclosure provides apparatus for analyzing emerging security or authentication feature for physical objects (e.g., identification documents, product packaging, banknotes, etc.). One claim recites an apparatus comprising: a light source for illuminating a physical object with first non-visible light, the physical object comprising a first code provided with a first ink or dye and a second code provided with a second ink or dye, the second ink or dye comprising an emission decay time that is relatively longer than an emission decay time of the first ink or dye, the first code and the second code collectively conveying a first feature when illuminated with the first non-visible light, with the second code individually conveying a second feature after emissions attributable to the first code fall to a first level; and an electronic reader programmed for reading at least the second feature after emissions attributable to the first ink or dye fall to the first level and before emissions attributable to the second ink or dye fall to a second level. Other claims and combinations are provided as well.
    • 本公开提供了用于分析物理对象(例如,识别文档,产品包装,纸币等)的新出现的安全性或认证特征的装置。 一个权利要求描述了一种装置,包括:用于用第一不可见光照射物体的光源,物理物体包括设置有第一墨水或染料的第一代码和设置有第二墨水或染料的第二代码,第二个 包括相对长于第一墨水或染料的发射衰减时间的发射衰减时间的第一代码和第二代码,其中第一代码和第二代码在用第一不可见光照亮时一起传送第一特征,第二代码 在归因于第一代码的排放物之后单独地传送第二特征落在第一水平; 以及编程用于在归因于第一墨水或染料的排放物排放到第一水平之后以及归因于第二墨水或染料的排放物落入第二水平之前至少读取第二特征的电子阅读器。 还提供了其他权利要求和组合。
    • 7. 发明授权
    • Stability of covert pigments
    • 隐蔽颜料的稳定性
    • US08002190B2
    • 2011-08-23
    • US11140613
    • 2005-05-27
    • Daoshen BiRobert L. JonesJack Richardson
    • Daoshen BiRobert L. JonesJack Richardson
    • G06K19/02
    • G06K19/06046C09D11/037C09D11/322
    • A covert material for printing onto a printing medium is provided, the covert material comprising a covert pigment and a binder encapsulating the covert pigment into a particle, where the binder comprises at least one of cellulose acetate butyrate (CAB), butyral vinyl acetate, acetyl butyrate, and acetate butyrate. Alternatively, the binder comprises at least one of polyester, polyolefin, acetyl butyrate, acetate butyrate, polystyrene copolymer, and polystyrene-polyvinylpyridine. The covert material can comprise additional components, such as ethyl acetate and/or n-propyl acetate. In one embodiment, the covert pigment comprises about 0.5-5% of the covert material. In one embodiment, the binder comprises about 5-30% of the covert material. In one advantageous embodiment, the covert pigment comprises at least 2% of the covert material and the binder comprises about 20-25% of the covert material. The covert material can further comprise at least one of a colorant, a surface additive, and a magnetic particle. The covert material can be part of a toner or ink. In at least some embodiments, the particle can have many different sizes, including sizes greater than 1 micron, greater than 5 microns, and greater than 20 microns. In one embodiment, the covert printing material is constructed and arranged to be printed using a printer having a predetermined resolution, wherein the particle has a size that is substantially the same as the size of a single pixel or dot printed using the predetermined resolution. The covert material can be constructed and arranged to satisfy a predetermined number of the NCITS 322 tests.
    • 提供用于印刷到打印介质上的隐蔽材料,所述隐蔽材料包括隐蔽颜料和将所述隐蔽颜料包封成颗粒的粘合剂,其中所述粘合剂包含乙酸丁酸纤维素(CAB),丁缩醛乙酸乙烯酯,乙酰基 丁酸酯和乙酸丁酸酯。 或者,粘合剂包括聚酯,聚烯烃,丁酸乙酰酯,乙酸丁酸酯,聚苯乙烯共聚物和聚苯乙烯 - 聚乙烯吡啶中的至少一种。 隐蔽材料可以包含另外的组分,例如乙酸乙酯和/或乙酸正丙酯。 在一个实施方案中,隐蔽颜料包含约0.5-5%的隐蔽材料。 在一个实施方案中,粘合剂包含约5-30%的隐蔽材料。 在一个有利的实施方案中,隐蔽颜料包括至少2%的隐蔽材料,并且粘合剂包含约20-25%的隐蔽材料。 隐蔽材料可进一步包括着色剂,表面添加剂和磁性颗粒中的至少一种。 隐蔽材料可以是调色剂或墨水的一部分。 在至少一些实施方案中,颗粒可以具有许多不同的尺寸,包括大于1微米,大于5微米和大于20微米的尺寸。 在一个实施例中,隐形印刷材料被构造和布置成使用具有预定分辨率的打印机进行印刷,其中所述颗粒具有与使用预定分辨率打印的单个像素或点的尺寸基本相同的尺寸。 可以构造和布置隐蔽材料以满足预定数量的NCITS 322测试。