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    • 4. 发明授权
    • Method and system for validating a security marking
    • 验证安全标记的方法和系统
    • US07966267B2
    • 2011-06-21
    • US12422565
    • 2009-04-13
    • Judith D. AuslanderRobert A CorderyClaude Zeller
    • Judith D. AuslanderRobert A CorderyClaude Zeller
    • G06F12/14
    • B41M3/144G06K7/12G06K19/14
    • A method and system for authenticating an item by using a security marking. The security marking is provided on the item with an OVD ink capable of absorbing light in a visible wavelength range to appear visibly black and producing a red fluorescent emission under ultraviolet excitation. Under visible light illumination and ultraviolet excitation, a visible image and a fluorescent image are obtained from the security marking using image scanners. The images are compared to find a substantial match with each other. The security marking can be a postage indicium, a barcode, a symbol, a message or an image. The item to be authenticated can be a mailpiece, a banknote, a tag, a ticket, a document, an identification card, or the like.
    • 一种通过使用安全标记认证物品的方法和系统。 在该项目上提供安全标记,其具有能够吸收可见光波长范围内的光的OVD油墨,以显现出明显的黑色,并在紫外线激发下产生红色荧光发射。 在可见光照射和紫外线激发下,使用图像扫描仪从安全标记获得可视图像和荧光图像。 将图像进行比较以找到彼此的实质匹配。 安全标记可以是邮资标签,条形码,符号,消息或图像。 要认证的物品可以是邮件,钞票,标签,票证,文件,身份证等。
    • 5. 发明授权
    • Method for embedding information in an image
    • 在图像中嵌入信息的方法
    • US07191336B2
    • 2007-03-13
    • US10087518
    • 2002-03-01
    • Claude ZellerRobert A. CorderyDonald G. MackayWilliam A. Brosseau
    • Claude ZellerRobert A. CorderyDonald G. MackayWilliam A. Brosseau
    • H04L9/00H04L9/28
    • G07B17/00733G07B2017/00822H04N1/00838H04N1/00883
    • A method for producing a background image representing data. The background image is created by; producing a first encoding of data into a first binary array; producing a second encoding of the data into a second binary array; representing the first binary array as a first set of modules of a first size of n×n pixels wherein each pixel is either white or black and every pixel in the module is identical to every other picture in the module on nodes of a first lattice, representing the second binary array as a first set of modules of a second size, of m×m wherein each pixel is either white or black and every pixel in the module is identical to every other pixel in the module, which is smaller than the first size on nodes of a second lattice, combining the first and second sets of modules; and printing the first and second sets of modules.
    • 一种用于产生表示数据的背景图像的方法。 背景图像由...创建 产生数据的第一编码为第一二进制数组; 产生数据的第二编码为第二二进制数组; 将第一二进制数组表示为n×n个像素的第一大小的第一组模块,其中每个像素为白色或黑色,并且模块中的每个像素与第一格子的节点上的模块中的每个其它图像相同, 第二二进制数组作为m×m的第二大小的第一组模块,其中每个像素为白色或黑色,并且模块中的每个像素与模块中每隔一个像素相同,该像素小于第 第二格子,组合第一和第二组模块; 并打印第一和第二组模块。
    • 7. 发明申请
    • Method for printing two dimensional barcodes to reduce reading errors
    • 打印二维条形码以减少阅读错误的方法
    • US20080054080A1
    • 2008-03-06
    • US11511790
    • 2006-08-29
    • Robert A. CorderyFrederick W. RyanClaude Zeller
    • Robert A. CorderyFrederick W. RyanClaude Zeller
    • G06K19/06
    • G06K19/06037
    • A method of printing modules for a two dimensional barcode that includes printing a pixel at a plurality of the pixel locations included in the inner portion of the darkened module, and printing a pixel at less than all of the pixel locations of the outer boundary of the darkened module. Various embodiments are contemplated, such as, without limitation, methods that print darkened modules having four light corners, three light corners, two light corners, one light corner, and/or one light edge. Also, a method of printing a two dimensional barcode having a finder pattern wherein the inner edge of the finder pattern is light, meaning that is does not include any printed pixels at the pixel locations along the inner edge.
    • 一种用于二维条形码打印模块的方法,包括在包含在变暗模块的内部部分的多个像素位置处打印像素,并且将像素打印在小于全部像素位置的像素位置 变暗模块 可以想到各种实施例,例如但不限于打印具有四个光角,三个光角,两个光角,一个光角和/或一个光边缘的变暗模块的方法。 此外,一种打印具有取景器图案的二维条形码的方法,其中取景器图案的内边缘是浅的,这意味着在沿着内边缘的像素位置处不包括任何印刷像素。