| 摘要 |
<p>PURPOSE:To prevent a card from being forged by a normal forging method such as magnetic copying by forming identification data inherent in the card from the card only by the combination of optical information and magnetic information. CONSTITUTION:An optical information band 11A and a magnetic recording band 11B laminated so as to be superposed to the same position of the 1st track 11, a magnetic recording band 12B is formed on the 2nd track 12 and identification data can be formed only by combining the magnetic recording bands 11B, 12B and the optical information band 11A by a prescribed rule. Since the identification data can be detected from the card 10 only by combining the magnetic information and the optical information recorded on the card 10, the card 10 with high security can be issued.</p> |
