Braddon M. Van Slyke,Ron J. Kadlec,Scott McGonigle
申请号：
US13759956
公开号：
US20140221852A1
申请日:
2013.02.05
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal. The PPG signal may include a pulsatile component that functions as a carrier signal and a frequency modulation component that represents respiration information. The patient monitoring system may more the frequency modulation component to a baseline component of the PPG signal. Respiration information may be calculated based on the frequency modulation component.
