| 摘要 |
A biometric authentication unit includes a position detecting section for detecting a user's finger position from a pressure distribution detected by a right-side pressure detecting plate, a left-side pressure detecting plate, a front-side pressure detecting plate, a rear-side pressure detecting plate and a fingertip pressure detecting plate; corrects a finger vein pattern of a registrant data on the basis of the difference between the detected user's finger position and a correct position; collates the acquired user's finger vein pattern with the corrected registrant data; and authenticates whether the user is the registrant.
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