| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a crime etc. that a receipt which becomes unnecessary and is abandoned passes to other hands and as the result cash is withdrawn illegally from a cash account, without a large cost increase as the entire system at financial automatic transactions. <P>SOLUTION: A watermark generation part 105 embeds a transaction content into a prescribed image as a digital watermark, a display part 108 shows the image in which the transactions content is embedded by the watermark generation part 105, a photographing part 121 photographs the image embedded with the transaction content shown on the display part 108, and a watermark reading part 124 reads the transaction content from the image embedded with the transaction content photographed by the photographing part 121. <P>COPYRIGHT: (C)2007,JPO&INPIT |
