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    • 1. 发明授权
    • Playing cards provided with a machine-readable code
    • 提供机器可读代码的纸牌
    • US06527191B1
    • 2003-03-04
    • US09540617
    • 2000-03-31
    • Per Jannersten
    • Per Jannersten
    • G06K1900
    • A63F1/02A63F2009/242
    • Playing cards that include a machine-readable bar code in the form of a number of mutually parallel and juxtaposed bars, wherein the code is adapted to be read by light sensitive detectors. Each playing card includes at least one six-position binary code in which a bar is either present or absent at each of the six positions. The code includes a reference code in the form of an additional bar in at least one further position adjacent to the six-position binary code. The reference code is positioned for detection by a light sensitive detector. The binary code is intended to be read by means of the light sensitive detectors when the existence of the reference code is detected.
    • 包括以多个相互平行和并列的条形式的机器可读条形码的纸牌,其中所述代码适于被光敏检测器读取。 每个扑克牌包括至少一个六位二进制代码,其中在六个位置中的每一个处存在或不存在条形。 代码在与六位二进制代码相邻的至少一个另外的位置中包括附加条形式的参考代码。 该参考代码定位用于由光敏检测器检测。 当检测到参考码的存在时,二进制码将被借助于光敏检测器读取。