公开(公告)号：WO2015114539A1

公开(公告)日：2015-08-06

申请号：PCT/IB2015/050651

申请日：2015-01-28

Applicant: KBA-NOTASYS SA

Inventor： EHLENBRÖKER, Jan-Friedrich ,  LOHWEG, Volker

IPC: G07D7/00 ,  G07D7/20

CPC classification number: H04N1/32149 ,  G07D7/005 ,  G07D7/2033 ,  H04N1/00838 ,  H04N2201/327

Abstract: There is described a new coding approach for printed document authentication, one objective of which is to increase the difficulty of copying. In addition, this new coding approach provides better performance compared to other 2D coding technologies under certain constraints. The new coding technique requires less print space in comparison to other coding techniques. This is achieved by optimising some of the features which are used in standard 2D-codes for stabilisation and which are necessary for e.g. mobile applications. Furthermore, the code can be decomposed in elementary units, or "byte-units" which can be widely spread over a text document. Such "byte-units" can in particular be used for integration in text symbols. If a document protected with such a coding is copied, at least some of these symbols will be extensively degraded by the copying process. Therefore, copy detection is intrinsically achieved thanks to the new coding technique.

Abstract translation: 描述了用于打印文件认证的新的编码方法，其目的是增加复制的难度。 此外，与其他2D编码技术相比，这种新的编码方法在某些限制下提供了更好的性能。 与其他编码技术相比，新的编码技术需要更少的打印空间。 这通过优化用于稳定化的标准2D代码中的一些特征来实现，并且对于例如， 移动应用。 此外，代码可以以基本单位分解，或者可以广泛分布在文本文档上的“字节单位”。 这样的“字节单位”可以特别地用于集成在文本符号中。 如果复制了用这种编码保护的文档，则这些符号中的至少一些将被复制过程广泛地降级。 因此，通过新的编码技术，本质上实现了拷贝检测。

公开(公告)号：EP3100243A1

公开(公告)日：2016-12-07

申请号：EP15708594.5

申请日：2015-01-28

Applicant: KBA-NotaSys SA

Inventor： EHLENBRÖKER, Jan-Friedrich ,  LOHWEG, Volker

IPC: G07D7/00 ,  G07D7/20

CPC classification number: H04N1/32149 ,  G07D7/005 ,  G07D7/2033 ,  H04N1/00838 ,  H04N2201/327

Abstract: There is described a new coding approach for printed document authentication, one objective of which is to increase the difficulty of copying. In addition, this new coding approach provides better performance compared to other 2D coding technologies under certain constraints. The new coding technique requires less print space in comparison to other coding techniques. This is achieved by optimizing some of the features which are used in standard 2D-codes for stabilization and which are necessary for e.g. mobile applications. Furthermore, the code can be decomposed in elementary units, or “byte-units” which can be widely spread over a text document. Such “byte-units” can in particular be used for integration in text symbols. If a document protected with such a coding is copied, at least some of these symbols will be extensively degraded by the copying process. Therefore, copy detection is intrinsically achieved thanks to the new coding technique.

Abstract translation: 描述了用于打印文档认证的新的编码方法，其一个目的是增加复制的难度。 此外，与其他2D编码技术相比，这种新的编码方法在某些限制下提供了更好的性能。 与其他编码技术相比，新的编码技术需要更少的打印空间。 这通过优化用于稳定化的标准2D代码中的一些特征来实现，并且这些特征对于例如， 移动应用。 此外，代码可以以基本单位分解，或者可以广泛分布在文本文档上的“字节单位”。 这样的“字节单位”特别可以用于文本符号的集成。 如果复制了用这种编码保护的文档，则这些符号中的至少一些将被复制过程广泛地降级。 因此，通过新的编码技术，本质上实现了拷贝检测。