Patent ID: 9239945
Filing Date: 2016-01-19
CPC Classification: G06F,G06K

Claim Text:
1. A biometric authentication apparatus comprising: a storage device configured to store first matching data for a registered user, first representative matching data that is generated based on input matching data for a user obtained during a period when the degree of similarity between the input matching data and the first matching data is equal to or larger than a threshold value and second representative matching data that is generated based on the input matching data obtained during a period when the degree of similarity between the input matching data and the first matching data is larger than the degree of similarity between the input matching data and the first representative matching data; a biometric sensor configured to generate a biometric image that represents biometric information of a user; and a processor configured to generate, from the biometric image, the input matching data; match the input matching data against at least one of the first and second representative matching data; and judge, based on a result of the matching, whether the user is to be authenticated as being the registered user or not.