PROBLEM TO BE SOLVED: To process a pulse wave signal and calculate a blood pressure with a high degree of precision.SOLUTION: A pulse wave signal processing device includes a feature quantity extracting part for extracting a feature quantity based on a pulse wave signal, a feature quantity holding part for holding the feature quantity, and a blood pressure calculating part for calculating a blood pressure based on the feature quantity. The blood pressure calculating part calculates a blood pressure from a value calculated from the feature quantity held by the feature quantity holding part in the past, and a value calculated from the present feature quantity extracted by the feature quantity extracting part.COPYRIGHT: (C)2014,JPO&INPIT【課題】脈波信号を処理して血圧を精度良く演算する。【解決手段】脈波信号処理装置は、脈波信号に基づく特徴量を抽出する特徴量抽出部と、前記特徴量を保持する特徴量保持部と、前記特徴量に基づき血圧を演算する血圧演算部とを備える。前記血圧演算部は、過去に前記特徴量保持部に保持された前記特徴量から算出される値と、前記特徴量抽出部によって抽出された現在の前記特徴量から算出される値とから血圧を演算する。【選択図】図1
