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Low-complexity sensor displacement tolerant pulse oximetry based heart rate measurement
专利权人:
发明人:
Vitali Loseu,Sourabh Ravindran
申请号:
US14166527
公开号:
US09717423B2
申请日:
2014.01.28
申请国别(地区):
US
年份:
2017
代理人:
摘要:
Methods for heart rate measurement based on pulse oximetry are provided that can tolerate some degree of relative displacement of a photoplethysmograph (PPG) heart rate monitor device. In some methods, artifact compensation based on a reference signal is performed on the PPG signal data to remove artifacts in the signal that may be caused, for example, by changes in ambient light and/or motion of a person wearing the monitor device. The reference signal used for artifact compensation may be generated using an LED of a complementary wavelength to that of the LED used to generate the PPG signal, or by driving an LED at a lower current than the current applied to generate the PPG signal.
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