Patent Number: 7,272,380

Title: User authentication method and apparatus

Abstract: A user authentication method includes varying a threshold value for human body recognition depending on the extent to which an input graphical password matches with a registered graphical password and determining whether to authenticate a user or not based on a result of comparing the user's human body recognition information with registered human body recognition information. Thus, it is possible to improve convenience, reliability, and security of user authentication based on a graphical password in a device, such as a PDA or other portable electronic device, not having a key manipulation unit. In addition, a biometrics unit that used to provide authentication functions and to carry out user authentication may be improved by lowering both FAR and FRR by variably setting a threshold value for biometrics depending on the result of user authentication using a graphical password.

Inventors: Lee; Jong-ha (Gyeonggi-do, KR), Hwang; Eui-hyeon (Gyeonggi-do, KR)

Assignee: Samsung Electronics Co., Ltd.

International Classification: H04M 3/16 (20060101)

Expiration Date: 2019-09-18 0:00:00