Abstract: At the time of measuring a blood pressure, when an MPU controls a pressure in a cuff, detects a pulse wave generated due to pressurizing of a cuff pressure via a band-pass filter or the like, calculates a wave feature value of the detected pulse wave and calculates the blood pressure so as to output it using the calculated wave feature value, the MPU detects the pulse wave in a range of the cuff pressure where the pule wave can be detected. Therefore, since a blood pressure measuring process constituted of detection of the pulse wave, calculation of the wave feature value and calculation of the blood pressure is executed within the range of the cuff pressure where the pulse wave can be detected, the process is prevented from being executed within a range where the pulse wave cannot be detected, thereby measuring the blood pressure with good accuracy.

Abstract: At the time of measuring a blood pressure, when an MPU controls a pressure in a cuff, detects a pulse wave generated due to pressurizing of a cuff pressure via a band-pass filter or the like, calculates a wave feature value of the detected pulse wave and calculates the blood pressure so as to output it using the calculated wave feature value, the MPU detects the pulse wave in a range of the cuff pressure where the pule wave can be detected. Therefore, since a blood pressure measuring process constituted of detection of the pulse wave, calculation of the wave feature value and calculation of the blood pressure is executed within the range of the cuff pressure where the pulse wave can be detected, the process is prevented from being executed within a range where the pulse wave cannot be detected, thereby measuring the blood pressure with good accuracy.