| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fingerprint authentication method and fingerprint authentication device with biological authentication having a low risk of erroneous determination. <P>SOLUTION: When a biological information operating part 5A determines that there is no vital reaction, a fingerprint information collation operating part 3A stores a fingerprint image input from a fingerprint input part 1 together with the frequency of repeated input (the frequency of trying "impersonation") in a rejected fingerprint information storing part 7. On the other hand, the biological information operating part 5A determines the existence of vital reaction on the basis of a detection signal of a biological detection part 4A in accordance with the frequency stored in the rejected fingerprint information storing part 7. Since biological detection processing is repeatedly performed in accordance with the frequency of actions of "impersonation", it is possible to improve the accuracy of biological authentication determination. <P>COPYRIGHT: (C)2008,JPO&INPIT |
