| 摘要 |
A system for keeping code input secret when using payment card terminals. As it is very easy for thieves to "find out" the code when people are standing and keying in entries when paying by, for example, Dankort, it is a current and growing problem which causes banks, insurance companies and private individuals great losses and compensation costs as a result. It is not just a problem here in Denmark, but all over the world. A number of cells/compartments are positioned over the keyboard, as in model 1, Fig. 1, no. 1, for each button on the keyboard. These cells are to ensure that it is only possible to read the code when the line of vision passes through the cells and down onto the keyboard, Fig. 1, no. 2. This cell construction is arranged as the top part of the security screen, Fig. 3, no. 1. <IMAGE>
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