Patent ID: 9117067
Filing Date: 2015-08-25
Classification: G06F,H04M,H04W

Abstract:
1. A mobile information terminal that acquires gripping feature samples when being gripped and that performs authentication, the terminal comprising: a mode acquisition section adapted to acquire the mode of the mobile information terminal; a gripping-feature sample acquisition section adapted to acquire the gripping feature samples; a switch adapted to switch the mobile information terminal between a learning state and an authentication state; a sample filling section adapted to, when the mobile information terminal is in the learning state of an authentication template and the number of gripping feature samples acquired in a first mode is insufficient, filling the lacking gripping feature samples in the first mode with gripping feature samples acquired in a second mode different from the first mode using a transition source occupation rate R which is proportion oft to T, where t indicates a number of events in which a user transitions from the second mode to the first mode, and T indicates a number of events in which the user transitions from any mode to the first mode; a template learning section adapted to learn an authentication template in each mode by using the gripping feature samples acquired by the gripping-feature sample acquisition section, when the mobile information terminal is in the learning state; an authentication section adapted to compare gripping feature samples acquired when the mobile information terminal is in the authentication state, with the learned authentication template to perform the authentication; and a locking section adapted to lock some or all of the functions of the mobile information terminal when the authentication fails.