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公开(公告)号：US07054461B2
公开(公告)日：2006-05-30
申请号：US10077354
申请日：2002-02-15
申请人： Claude Zeller , Donald G. Mackay , William Kilmartin , Robert A. Cordery , William A. Brosseau , Hugh L. Brunk , Stephen K. Decker , Jun Tian
发明人： Claude Zeller , Donald G. Mackay , William Kilmartin , Robert A. Cordery , William A. Brosseau , Hugh L. Brunk , Stephen K. Decker , Jun Tian
IPC分类号： G06K9/00
CPC分类号： G06T1/0078 , G06T2201/0202
摘要： The disclosure describes an authentication system and related methods for authenticating printed objects. The system uses an information-based metric along with one or more print quality metrics to provide accurate detection or classification of a counterfeit printed object. The print quality metric evaluates attributes of a subject image associated with the original printer, ink or paper to detect degradation of those operations due to copying operations like an image scanning and halftone printing subsequent to the original printing of the object. The information-based metric measures message symbol errors in an optically readable code, such as a digital watermark.
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2.发明授权Method for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular document 有权确定打印机签名的方法和打印在文档中的每英寸点数，以提供打印机打印特定文档的证明公开(公告)号：US06533385B1
公开(公告)日：2003-03-18
申请号：US10016881
申请日：2001-12-14
IPC分类号： B41J29393
CPC分类号： B41J29/393 , G07B17/00508 , G07B2017/00637
摘要： A method for assigning unique printer resolutions or signatures, i.e., a unique number of dots per inch, to a class, or models of printers or lines of postage meters. The number of dots per inch or resolution may be specified within a image on a document or within a postal indicia and later checked to determine if the image on document or the postal indicia has the correct resolution. The foregoing would be able to detect an image or postal indicia that was scanned into a computer and printed with a printer that did not have the number of dots per inch specified in the image or postal indicia.
摘要翻译： 一种用于将独特的打印机分辨率或签名（即，每英寸的唯一数量的点）分配给类或打印机或邮资计费行的模型的方法。 每英寸或分辨率的点数可以在文档上的图像或邮政标记内指定，稍后检查以确定文档上的图像或邮政标记是否具有正确的分辨率。 上述内容将能够检测到扫描到计算机中的图像或邮戳，并打印出不具有图像或邮戳中指定的每英寸点数的打印机。
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公开(公告)号：USRE45828E1
公开(公告)日：2015-12-29
申请号：US11084869
申请日：2005-03-17
IPC分类号： B41J29/393 , B41J29/38 , G07B17/00
CPC分类号： B41J29/393 , G07B17/00508 , G07B2017/00637
摘要： A method for assigning unique printer resolutions or signatures, i.e., a unique number of dots per inch, to a class, or models of printers or lines of postage meters. The number of dots per inch or resolution may be specified within a image on a document or within a postal indicia and later checked to determine if the image on document or the postal indicia has the correct resolution. The foregoing would be able to detect an image or postal indicia that was scanned into a computer and printed with a printer that did not have the number of dots per inch specified in the image or postal indicia.
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公开(公告)号：US08041645B2
公开(公告)日：2011-10-18
申请号：US10990719
申请日：2004-11-17
CPC分类号： G07B17/00508 , G06Q20/105 , G07B17/00661 , G07B2017/00443 , G07B2017/0058 , G07B2017/00653 , G07B2017/00709
摘要： The present invention includes apparatus and methods for printing and verifying postage stamps on demand via a personal postage stamp printer. The indicium by which the stamp is printed includes a color stripe and a data field including authentication data that corresponds to the color stripe. To authenticate the stamp, the authentication data in the data field is read and compared with authentication data extracted from the color stripe.
摘要翻译： 本发明包括通过个人邮票印刷机按需打印和验证邮票的装置和方法。 邮票打印的标记包括彩色条纹和数据字段，包括对应于彩色条纹的认证数据。 为了对印章进行认证，读取数据字段中的认证数据并将其与从彩色条带提取的认证数据进行比较。
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公开(公告)号：US07191336B2
公开(公告)日：2007-03-13
申请号：US10087518
申请日：2002-03-01
CPC分类号： G07B17/00733 , G07B2017/00822 , H04N1/00838 , H04N1/00883
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07013024B2
公开(公告)日：2006-03-14
申请号：US10087492
申请日：2002-03-01
IPC分类号： G06K9/00
CPC分类号： G06T1/0042 , G06K7/1417 , G06K19/06037 , G06T2201/0051 , G07B2017/00709
摘要： A method for detecting a copy of a composite image that includes a first image and a second image that has information embedded in the second image that will change in appearance when the first and second images are scanned or photocopied. The foregoing is accomplished by scanning the first and second images, and detecting a change in appearance of the second image that indicates the first and second images were scanned or photocopied.
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公开(公告)号：US07055746B2
公开(公告)日：2006-06-06
申请号：US10819700
申请日：2004-04-07
IPC分类号： G06K7/10
CPC分类号： G07B17/00508 , G07B17/00661 , G07B2017/00443 , G07B2017/0058 , G07B2017/00709
摘要： The present invention includes apparatus and methods for printing and verifying postage stamps on demand via a personal postage stamp printer. The indicia by which the stamp is printed includes a color bar sequence and a data field including data that corresponds to the color bar sequence. To authenticate the stamp, the data field is read and the color bar sequence data included in the data field is compared with the data generated by detecting the color bar sequence itself.
摘要翻译： 本发明包括通过个人邮票印刷机按需打印和验证邮票的装置和方法。 打印印记的标记包括彩条序列和数据字段，包括对应于色条序列的数据。 为了对印章进行认证，读取数据字段，并将包括在数据字段中的色条序列数据与通过检测色条序列本身产生的数据进行比较。
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公开(公告)号：US20120080525A1
公开(公告)日：2012-04-05
申请号：US13247154
申请日：2011-09-28
IPC分类号： G06K7/10
CPC分类号： G07B17/00508 , G06Q20/105 , G07B17/00661 , G07B2017/00443 , G07B2017/0058 , G07B2017/00653 , G07B2017/00709
摘要： The present invention includes apparatus and methods for printing and verifying postage stamps on demand via a personal postage stamp printer. The indicium by which the stamp is printed includes a color stripe and a data field including authentication data that corresponds to the color stripe. To authenticate the stamp, the authentication data in the data field is read and compared with authentication data extracted from the color stripe.
摘要翻译： 本发明包括通过个人邮票印刷机按需打印和验证邮票的装置和方法。 邮票打印的标记包括彩色条纹和数据字段，包括对应于彩色条纹的认证数据。 为了对印章进行认证，读取数据字段中的认证数据并将其与从彩色条带提取的认证数据进行比较。
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9.发明授权Method for determining a printer's signature to provide proof that the printer printed a particular document 失效确定打印机签名以提供打印机打印特定文档的证明的方法公开(公告)号：US06612684B2
公开(公告)日：2003-09-02
申请号：US10017144
申请日：2001-12-14
IPC分类号： B41J215
CPC分类号： B41J25/001 , H04N1/00002 , H04N1/00005 , H04N1/00015 , H04N1/00037 , H04N1/00047 , H04N1/00058 , H04N1/00076 , H04N1/0414 , H04N1/0437 , H04N1/0455 , H04N1/1911
摘要： The number of dots per inch or resolution may be specified within a image on a document or within a postal indicia and later checked to determine if the image or document or the postal indicia has the correct resolution. The foregoing is accomplished by specifying that the image on the substrate will be printed with n plus m dots per inch; rotating a ink jet head having n nozzles per inch about a axis parallel to a substrate by an angle &thgr; so that the ink jet head will produce an image on the substrate having (n/cos &thgr;) dots per inch; storing in a data center that the specified image will be printed with (n/cos &thgr;) dots per inch; analyzing the image to determine if the image has (n/cos &thgr;) dots per inch; and comparing the number of dots per inch in the analyzed image with the number of dots per inch stored for the specified image to determine if they have the same number of dots per inch.
摘要翻译： 每英寸或分辨率的点数可以在文档上的图像或邮政标记内指定，然后检查以确定图像或文档或邮政标签是否具有正确的分辨率。 上述内容是通过指定基板上的图像将以每英寸n个加上m个点的形式来进行的; 旋转一个喷墨头，每英寸有一个平行于基片的轴的每英寸n个喷嘴一个角度θ，使得喷墨头将在基片上产生每英寸具有（n /cosθ）点的图像; 在数据中心存储指定图像将以（n /cosθ）点/英寸打印; 分析图像以确定图像是否具有每英寸（n /cosθ）个点; 并将分析图像中的每英寸点数与每个英寸存储的点数相比较，以确定它们是否具有相同的每英寸点数。
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公开(公告)号：US07286685B2
公开(公告)日：2007-10-23
申请号：US11345648
申请日：2006-01-31
申请人： Hugh L. Brunk , Claude Zeller
发明人： Hugh L. Brunk , Claude Zeller
IPC分类号： G06K9/00
CPC分类号： G06T1/0092 , G06K15/1889 , G06T1/0071 , G06T2201/0051 , H04N1/32144 , H04N1/32256 , H04N1/4052 , H04N17/004 , H04N21/4425 , H04N21/8358 , H04N2201/3284
摘要： The present invention relates generally to digital watermarking. In one embodiment, a method of detecting copying of a printed object is provided. In another embodiment, a method is provided to measure digital watermark strength. In yet another embodiment, and for printing applications, an embedded digital watermark may be used to carry printer information that is later decoded by a watermark decoder and used to examine a digital scan of a printed object and determine whether the printed object is authentic. Other embodiments are provided as well.
摘要翻译： 本发明一般涉及数字水印。 在一个实施例中，提供了检测打印对象的复制的方法。 在另一实施例中，提供了一种测量数字水印强度的方法。 在另一个实施例中，并且对于打印应用，嵌入式数字水印可以用于承载随后由水印解码器解码的打印机信息，并用于检查打印对象的数字扫描并确定打印对象是否是真实的。 也提供其他实施例。
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