Patent ID: 8812090
Filing Date: 2014-08-19
Classification: A61B,G06K

Abstract:
1. A calibration method of electrocardiogram signals, utilized in an electrocardiogram identification or verification device, an electrocardiogram template of a user saved in the electrocardiogram identification or verification device, the calibration method of the electrocardiogram signals comprising: a) receiving an input of an uncalibrated electrocardiogram signal; b) generating a trigonometric projection degree by calculating a ratio of a distance length of the uncalibrated electrocardiogram signal and a distance length of the electrocardiogram template; c) setting an axis anchor point of trigonometric projection for attaining a displacement of the uncalibrated electrocardiogram signal on the axis; and d) performing calibration of the distance length on the uncalibrated electrocardiogram signal according to a generated trigonometric value which corresponds with the trigonometric projection degree and the attained displacement, wherein the distance length of the uncalibrated electrocardiogram signal is the time interval of the uncalibrated electrocardiogram signal, the distance length of the electrocardiogram template is the time interval of the electrocardiogram template in the step b, the axis is X-axis in the step c, and the width calibration is performed on the uncalibrated electrocardiogram signal in the step d.