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    • 53. 发明授权
    • Fragile water mark printed with two component inks and process
    • 印有双组分油墨和工艺的脆弱水印
    • US07114657B2
    • 2006-10-03
    • US10737325
    • 2003-12-16
    • Judith D. AuslanderRobert A. CorderyClaude Zeller
    • Judith D. AuslanderRobert A. CorderyClaude Zeller
    • G06K19/06G06K19/00
    • G06K19/06028G06K7/12G06K2019/06225
    • Improvements are provided in processing of documents to increase their security and/or decrease the complexity of testing for authenticity. Methods for printing documents with security markings and methods and apparatus for authenticating documents are described. In one aspect a document is printed with a security marking comprised of an image printed in at least two image segments. The image can be printed with an ink capable of forming images which are visible both to viewing under white light and as fluorescent images when irradiated with ultraviolet light, the segments having features of different sizes. The relative sizes of the two image segments will provide a detectable difference in fluorescent image sharpness. The apparatus provides means, all of which are simple and easily available for carrying out the methods.
    • 在处理文件以提高其安全性和/或降低真实性测试的复杂性方面提供了改进。 描述用于打印具有安全标记的文档的方法以及用于认证文档的方法和装置。 在一个方面,文件印刷有由打印在至少两个图像片段中的图像组成的安全标记。 该图像可以用能够形成在白光下观看的图像的墨水以及当用紫外线照射时的荧光图像来打印,这些片段具有不同尺寸的特征。 两个图像片段的相对尺寸将提供荧光图像清晰度的可检测差异。 该装置提供了所有这些方法,所有这些装置都是简单且容易实现的方法。