| Patent application number | Description | Published |
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| 20080240515 | METHOD OF ADJUSTING REFERENCE INFORMATION FOR BIOMETRIC AUTHENTICATION AND APPARATUS - According to an aspect of an embodiment, a method of adjusting reference information for biometric authentication, comprises storing the reference information including reference biometric data and threshold values corresponding to a plurality of users, respectively, obtaining biometric data of a user by inputting biometric information of the user, calculating a matching ratio of the biometric data with the reference biometric data of each of the users, respectively, comparing the matching ratio of each of the users with the threshold value of each of the users, respectively, determining which of the matching ratios exceed the corresponding threshold values and adjusting the threshold values which are exceeded by the corresponding matching ratios so that all the matching ratios but the highest matching ratio become lower than the adjusted threshold values, respectively. | 10-02-2008 |
| 20090232368 | AUTHENTICATION APPARATUS - An authentication apparatus is provided. A forgery determination threshold is determined on the basis of two types of parameters, a forgery similarity and a forgery difficulty. If a calculated value for an object under test is lower than or equal to the forgery determination threshold, then, it is determined that the object is a biologic object. Thus, easiness in impersonation with a fake of a biologic object that is easy to forge may be reduced, and a false rejection due to a determination in which a biologic object is erroneously determined as a fake may be reduced. | 09-17-2009 |
| 20090245596 | AUTHENTICATION APPARATUS AND AUTHENTICATION METHOD - The present invention relates to authentication information using bio information such as fingerprints. Identification accuracy whether a living body or a forgery (non living body) is improved to prevent an authentication error The present invention particularly relates to an authentication apparatus (a fingerprint authentication apparatus), an authentication method, an authentication program and a recording medium. By detecting characteristics not shown in a living body that a forgery (non-living body) has, the characteristic such as uniform reducing feature by the passage of time of a gummy finger (a false finger) made like a bio finger, whether a living body or a forgery is determined, a determination error of a living body by a forgery is prevented, and authentication accuracy of a living body is enhanced. | 10-01-2009 |
| 20100042850 | AUTHENTICATION METHOD AND APPARATUS - An authentication method for use in an apparatus having a function, a function to execute a first program that executes a predetermined process after first user authentication with biometrics authentication is performed and does not have a network connection function, and a function to execute a second program that is invoked after the first program is executed, executed after second user authentication and has a network connection function comprises executing the first program in forgery detection mode regardless of a result of a user determination if biometrics authentication with forgery is detected at the time of the first user authentication, invoking the second program in the forgery detection mode after the first program is executed in the forgery detection mode, and notifying a device connected to an external network of forgery detection information by using the network connection function after the second program is invoked in the forgery detection mode. | 02-18-2010 |
| 20100060417 | BIOMETRICS AUTHENTICATION DEVICE AND BIOMETRICS AUTHENTICATION METHOD - A biometrics authentication device includes a registered data retaining unit to retain registered data, a verification data retaining unit to retain a plurality of pieces of verification data used for verification with the registered data, and a registered data generation unit to extract feature information of high reproducibility from the verification data in the verification data retaining unit and the registered data in the registered data retaining unit and to generate new registered data from extracted feature information, wherein by the new registered data generated by the registered data generation unit, the registered data in the registered data retaining unit is updated. | 03-11-2010 |
| 20100061600 | Biometric authentication device, fake body judgment device, and biometric authentication method - A biometric authentication device includes a fake body judgment unit that judges whether a subject is a fake body by verifying whether a biometric information value that is input from the subject is within a biometric information value range that has been registered in advance; and a biometric information value range updating unit that, when the fake body judgment unit has judged that the subject is a living body, updates the biometric information value range such that a difference between the biometric information value that is input from the subject and an end of the biometric information value range becomes larger. | 03-11-2010 |
| 20100148922 | BIOMETRIC AUTHENTICATION DEVICE AND METHOD, COMPUTER-READABLE RECORDING MEDIUM RECORDED WITH BIOMETRIC AUTHENTICATION COMPUTER PROGRAM, AND COMPUTER SYSTEM - A computer system checks whether or not an authentication success rate for a registered user shows an over-time reduction based on the history of the results of the previous biometric authentication processes in which the high-speed verification process is executed, when the authentication success rate is determined as showing an over-time reduction for the registered user, the computer system instead executes a precise verification process for verifying input biometric information against registered biometric information to make verification with a higher precision than with the high-speed verification process. | 06-17-2010 |
