VERMEULEN OLAF THOMAS JOHAN ANTONIE,VERMEULEN OLAF THOMAS JOHAN ANTONIE,GEENEN KOEN,GEENEN KOEN
申请号：
PL15731553
公开号：
PL3016582T3
申请日:
2015.06.19
申请国别(地区):
PL
年份:
2017
代理人:
摘要：
The present invention relates to a photoplethysmography sensor apparatus (200, 300), a photoplethysmography sensor method (400), and a photoplethysmography sensor computer program product. It is proposed to measure a photoplethysmographic signal without ambient light interference. Ambient light signals are rejected by subtraction of a compensation current at the input of a transimpedance amplifier (240, 340). The compensation current is controlled via a closed loop, without interfering with the low duty cycle operation of a photoplethysmography LED (210, 310).
