PERSONAL AUTHENTICATION APPARATUS, PERSONAL AUTHENTICATION METHOD, AND RECORDING MEDIUM

摘要

A personal authentication apparatus includes a measuring circuit that measures a user electrocardiographic waveform using electrodes, a peak detector that detects peaks of first and second R waves and at least one of peaks of P and Q waves, and an acquirer. The acquirer expands/contracts a time interval between the peaks of the first and second R waves to a first time period and further (i) expands/contracts a time interval between the peaks of the first R wave and P wave to a second time period, (ii) expands/contracts a time interval between the peaks of the first R wave and Q wave to a third time period, or (iii) expands/contracts the time interval between the peaks of the first R wave and P wave to the second time period and expands/contracts the time interval between the peaks of the first R wave and Q wave to the third time period.

主权项

1. A personal authentication apparatus comprising:
an electrocardiograph measuring circuit that measures an electrocardiographic waveform of a user using a plurality of electrodes in contact with the user; a peak detector that detects at least one of a peak of a P wave and a peak of a Q wave, a peak of the first R wave, and a peak of the second R wave in the electrocardiographic waveform; an acquirer that acquires a first normalized electrocardiographic waveform by expanding or contracting the electrocardiographic waveform in a time axis direction and an amplitude direction on the basis of the peaks of the waves; and an authenticator that refers to identification information regarding a plurality of users and registration information including characteristic information indicating characteristics of the electrocardiographic waveform corresponding to the identification information regarding each of the users and outputs the identification information regarding a user corresponding to the characteristic information indicating the characteristics similar to the first normalized electrocardiographic waveform, wherein the acquirer expands or contracts a time interval between the peak of the first R wave and the peak of the second R wave to a first predetermined time period, and wherein the acquirer (i) expands or contracts a time interval between the peak of the first R wave and a peak of the P wave to a second predetermined time period, (ii) expands or contracts a time interval between the peak of the first R wave and a peak of the Q wave to a third predetermined time period, or (iii) expands or contracts the time interval between the peak of the first R wave and the peak of the P wave to the second predetermined time period and expands or contracts the time interval between the peak of the first R wave and the peak of the Q wave to the third predetermined time period.