发明授权
EP2512115B1 INVISIBLE INFORMATION EMBEDDING DEVICE, INVISIBLE INFORMATION RECOGNITION DEVICE, INVISIBLE INFORMATION EMBEDDING METHOD, INVISIBLE INFORMATION RECOGNITION METHOD, AND RECORDING MEDIUM 有权
设备嵌入可视化信息的设备,用来探测可视化信息嵌入可视化信息的用于检测看不见的信息和记录介质的方法,方法

INVISIBLE INFORMATION EMBEDDING DEVICE, INVISIBLE INFORMATION RECOGNITION DEVICE, INVISIBLE INFORMATION EMBEDDING METHOD, INVISIBLE INFORMATION RECOGNITION METHOD, AND RECORDING MEDIUM
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