SIGNAL RESTORATION SYSTEM, SIGNAL RESTORATION METHOD, AND PROGRAM FOR CAUSING COMPUTER TO EXECUTE SIGNAL RESTORATION METHOD

• Main Authors: OTSUKI TOMOAKI, YAMAMOTO KOHEI, ISHIZAKA SHUZO, HIROMATSU RYOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 26.04.2024
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

To restore a signal indicating the movement of cardiac beats with a high degree of precision.SOLUTION: A signal restoration system includes: a signal acquisition unit 1F11 for acquiring a first cardiac beat signal indicating the movement of cardiac beats; a first band-pass filter unit 1F12 for subjecting the first cardiac beat signal to first band-pass filter processing and generating a first signal; an integration calculation unit 1F13 for integrating frequency strength of the cardiac beats indicated by the first signal, and calculating an integral value; a second band-pass filter unit 1F14 for subjecting a second signal indicating the integral value over time to second band-pass filter processing and generating a third signal; and a restoration signal generation unit 1F17 for generating a restoration signal indicating the movement of the heart beats on the basis of first data generated by dividing the third signal for each predetermined time.SELECTED DRAWING: Figure 20 【課題】心拍の動作を示す信号を精度よく復元する。【解決手段】本信号復元システムは、心拍の動作を示す第１心拍信号を取得する信号取得部１Ｆ１１と、前記第１心拍信号に対して第１バンドパスフィルタ処理を行って第１信号を生成する第１バンドパスフィルタ部１Ｆ１２と、前記第１信号が示す前記心拍の周波数強度を積分して積分値を計算する積分計算部１Ｆ１３と、時間に対して前記積分値を示す第２信号に対して第２バンドパスフィルタ処理を行って第３信号を生成する第２バンドパスフィルタ部１Ｆ１４と、前記第３信号を所定時間ごとに区切って生成される第１データに基づいて、心拍の動作を示す復元信号を生成する復元信号生成部１Ｆ１７とを含む。【選択図】図２０