Ho-Jong CHANG,Eung Hwi KIM,Sang Hyun PARK,Seung Kyun HONG,Kwang Moo KIM
申请号：
US14767285
公开号：
US20160029950A1
申请日:
2014.02.13
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The present invention relates to a more accurate method for measuring anesthetic depth compared to existing methods for measuring anesthetic depth by using a cepstrum technique, thereby providing an anesthetic depth at an appropriate time even during sudden changes in anesthetic states. The method for measuring anesthetic depth using the cepstrum technique comprises the steps of: a first characteristic vector extraction portion receiving a first EEG signal as an input signal, calculating with a mel-frequency cepstral coefficient (MFCC), and extracting a first characteristic vector； a second characteristic vector extraction portion receiving, as input signals, a second EEG signal from an anesthetic state and a third EEG signal from a non-anesthetic state, calculating with the mel-frequency cepstral coefficient (MFCC), and extracting a second characteristic vector and a third characteristic vector； and a quantifying portion dividing, into a plurality of sections, an area between two axes of a vector flat surface having the second characteristic vector and the third characteristic vector as the two axes, and quantifying a position of the first characteristic vector within the plurality of sections to output an anesthetic depth index.
