| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent at reduced cost the recognition rate of a finger vein authentication device from being reduced by finger insertion erros by inexperienced users or the insertion of a fake by malicious users, etc. <P>SOLUTION: This personal authentication device is provided with an imaging part for picking up images of finger vein images; a light source for emitting light to be transmitted through a finger; an image computing part for collating the images; a guide part for indicating the image pickup positions of the finger; and a sensing part for sensing the touch of the finger to the guide part. Further, the device is provided with a light source for applying reflected light to the back of the finger; a switch part pushed in by the tip of the finger, a light source for passing through the tip of the finger; and a light receiving element for receiving light source for passing through the tip of the finger. Furthermore, the device is provided with a display means for displaying information to guide to regular use of the device. Furthermore, the device is provided with a means for switching the device depending on the stability of authentication between 1-N authentication by which all registered image are collated and 1-1 authentication by which an ID number for identifying the user is input in advance to collate only the corresponding registered images, and a means for updating the registered data. <P>COPYRIGHT: (C)2009,JPO&INPIT |
