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    • 2. 发明申请
    • MACHINE-READABLE CODE FORMAT
    • 机器可读代码格式
    • US20080121727A1
    • 2008-05-29
    • US11564054
    • 2006-11-28
    • Gabriel IFTIMEPeter M. KAZMAIERPaul F. SMITHChristopher A. WAGNERHadi K. MAHABADITyler B. NORSTEN
    • Gabriel IFTIMEPeter M. KAZMAIERPaul F. SMITHChristopher A. WAGNERHadi K. MAHABADITyler B. NORSTEN
    • G06K19/06B31F1/07
    • G06K1/12G06K2019/06271
    • Disclosed is a machine readable cord of a set of printed markings, wherein each printed marking of the set has a predetermined height on a substrate and represents a predetermined date value, wherein printed markings having a same predetermined height represent a same data value, and wherein printed markings representing different data values have different heights. Also disclosed is a system for embedding and recovering information on a substrate, including an image forming device containing at least one marking material, wherein the image forming device receives data, corresponding to the information, for forming machine readable code in accordance with claim 1 on an image receiving substrate, and forms an image including the machine readable code on the image receiving substrate with the at least one marking material, and a document reading device comprising a reader that detects the differences in height among the different printed markings of the machine readable code.
    • 公开了一组印刷标记的机器可读线,其中该组的每个印刷标记在基板上具有预定高度并且表示预定日期值,其中具有相同预定高度的印刷标记表示相同的数据值,并且其中 表示不同数据值的打印标记具有不同的高度。 还公开了一种用于在基板上嵌入和恢复信息的系统,包括包含至少一个标记材料的图像形成装置,其中图像形成装置接收对应于根据权利要求1所述的用于形成机器可读代码的信息的数据, 图像接收基板,并且利用所述至少一个标记材料在所述图像接收基板上形成包括所述机器可读代码的图像,以及文档读取装置,其包括读取器,所述读取器检测所述机器可读介质的不同打印标记之间的高度差异 码。