| 摘要 |
PROBLEM TO BE SOLVED: To prevent the use of an illegal card obtained by copying data recorded magnetically on a normal card into the illegal card. SOLUTION: A character string 21 displayed by recessed and projecting parts so as to be pressed out from one face 20b side by embossing is formed on the other face 20a side of a magnetic card 20 in parallel with the edge 20c on the side of one longer side and within a prescribed distance range from the edge 20c. Magnetic recording bands 22 and 23 for recording magnetically data are formed on the both faces of the magnetic card 20 in parallel with the edge 20c of the longer side. Data Da including a credit number or a band account number is magnetically recorded on one magnetically recording band 22, and characteristic data Db representing the characteristics of the recessed and projecting parts of a character string 21 that intersects the line R extending in parallel with the edge 20c at the position of the prescribed distance Lr from the edge 20c on the side of the longer side is preliminarily stored on the other magnetically recording band 23. |
