HEARTBEAT SIGNAL PROCESSOR AND HEARTBEAT SIGNAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To enable acquisition of proper heartbeat detection characteristics by removing a noise from a heartbeat signal.SOLUTION: A heartbeat signal processor includes: a means for acquiring a heartbeat signal associated with a subject's heartbeat from a heartbeat sensor; a low-pass filter for allowing the passage of the signal with a first predetermined frequency or lower, among the heartbeat signals; a harmonic noise acquiring means for acquiring a harmonic signal with a low-frequency noise by applying high-pass complementation to the signal output from the low-pass filter means; a high-pass filter for allowing the passage of the signal with a second predetermined frequency or higher, among the heartbeat signals; and a harmonic noise removing means for removing the harmonic signal with the low-frequency noise from the signal output from the high-pass filter.