Daniel S. Christman,Arpit Mehta,Ashley Thomas Baer,Paul J. Kettle
申请号：
US14670903
公开号：
US20150335293A1
申请日:
2015.03.27
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A system includes a first light source configured to emit light within a first wavelength light band, and a second light source configured to emit light within a second wavelength light band, where the first wavelength light band and the second wavelength light band are each reflected differently by biologic material (e.g., blood). The system also includes a light sensor configured to detect light within the first wavelength light band and the second wavelength light band and generate a first signal representative of received light intensity within the first wavelength light band and a second signal representative of received light intensity within the second wavelength light band. The system further includes circuitry configured to correlate the first signal and the second signal to determine whether at least one of the first signal or the second signal is associated with a periodic biologic function.
