Kai Kin Chan;Chor Tin Ma;Kai Wai Yeung;Fo Chau;Ming Yip Wong
发明人:
Chor Tin Ma,Kai Kin Chan,Ming Yip Wong,Kai Wai Yeung,Fo Chau
申请号:
US12195502
公开号:
US08979762B2
申请日:
2008.08.21
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. Light emitters and light detectors are located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and detecting reflected light signals from the different areas of tissue surrounding the body part.