| 摘要 |
PURPOSE:To prevent completely a crime regarding a cash dispenser card, by comparing a voice signal with a registered voiceprint of a depositor, which is stored in advance in a CPU, and confirming that it is that of the depositor himself. CONSTITUTION:Whenever a dispensor card is utilized, a CPU generates s word at random, and requests a user to repeat it through a display or a voice respondig device of a terminal equipment. Subsequently, the user's repeated voice a transferred to the CPU from the terminal equipment on the contrary, is compared and collated with a voiceprint of card holder, which is registerd in advance, and the result is tansferred to the terminal equipment. In this way, a symbol to be repeated is varied at every use of this card, therefore, probability of a misuse lowers. Also, even if the transmitting information is stolen between the terminal equipment and the CPU, since it is a variable data base made from a registered voiceprint of each user, it is prevented that the contents are stolen. |
