Patent ID: 7928830

Claim:
A biometric information detecting apparatus comprising: a biometric sensor for measuring biometric information for a predetermined time period; A/D conversion means for acquiring a sampling data by subjecting an output of the biometric sensor to A/D conversion; storing means for storing the sampling data; frequency analyzing means for subjecting the sampling data stored to the storing means to a frequency analysis and storing a result of the frequency analysis to the storing means; biometric state value calculating means for calculating a biometric state value from the result of the frequency analysis stored to the storing means; SN ratio calculating means for calculating an SN ratio from the result of the frequency analysis stored to the storing means; determining means for determining a reliability of the biometric state value based on whether the calculated SN ratio exceeds a predetermined threshold; and measured data storing means for associating a result of the reliability determination with the biometric state value and storing the result of the reliability determination and the biometric state value.