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OPTICAL HEART RATE SENSOR
专利权人:
Goodix Technology Inc.
发明人:
Bo Pi,Yi He
申请号:
US14807511
公开号:
US20160022160A1
申请日:
2015.07.23
申请国别(地区):
US
年份:
2016
代理人:
摘要:
Techniques, systems and apparatus are described for implementing a heart rate sensor based on optical measurements of color response of human blood. An optical heart rate sensor can include light source circuitry including a first light emitting diode (LED) to output a first source light signal to a target measurement site, a second LED to output a second source light signal to the target measurement site, a first current pulse driver communicatively coupled to the first LED to modulate the first source light signal output from the first LED at a first predetermined frequency and a second current pulse driver communicatively coupled to the second LED to modulate the second source light signal output from the second LED at a second predetermined frequency different from the first predetermined frequency. The optical heart rate sensor can include detector circuitry including a light detecting photodiode connected to a bias voltage.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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