| 摘要 |
PURPOSE: A security card system is provided to distinguish the truth of a card even if a record is copied or faked by having different inherent identification or card in which an inherent identifier is not included. CONSTITUTION: A card includes a paper mulberry stem. An information sensor obtains distribution shape of a paper mulberry stem and receives the light of a light source in which a card is transmitted to or reflected from the card. A database unit stores a paper mulberry stem distribution image of the card. A determining unit compares a distribution image of the paper mulberry and a paper mulberry stem distribution image which is saved in the database unit. The truth of the card is determined according to a comparison result. |
