APNEIC STATE DECISION DEVICE, APNEIC STATE DECISION METHOD, AND APNEIC STATE DECISION PROGRAM

摘要

PROBLEM TO BE SOLVED: To detect an apneic state in time of sleep with high accuracy.;SOLUTION: This apneic state decision device includes: a section detection part detecting, from an acoustic signal, a respiration section regarded that the section includes respiratory sound, and a halfway section present between the respiration sections; a calculation part calculating an acoustic characteristic amount based on a background noise component included in the halfway section and a signal component except the background noise component; and a decision part deciding the halfway section as an apneic state when the acoustic characteristic amount agrees with a prescribed condition. The acoustic characteristic amount based on the background noise component and the signal component except the background noise component is, for example, a signal to noise ratio of the acoustic signal in the halfway section, or a spectrum distance with the past acoustic signal.;COPYRIGHT: (C)2014,JPO&INPIT