发明名称 |
PLETHYSMOGRAPHY HEART RATE MONITOR NOISE REDUCTION USING DIFFERENTIAL SENSORS |
摘要 |
An apparatus includes a first electromagnetic sensor configured to generate a first sensed signal based at least in part on detection of a first signal having a first wavelength. The apparatus includes a second electromagnetic sensor configured to generate a second sensed signal based at least in part on detection of a second signal having a second wavelength different from the first wavelength. The apparatus includes a processing circuit configured to generate a plethysmogram based at least in part on the first sensed signal and the second sensed signal. The apparatus may include a first emitter configured to emit an optical signal having the first wavelength. The apparatus may include a second emitter configured to emit a reference signal. The first wavelength may be a human-blood-sensitive and human-skin-penetrable wavelength and the second wavelength may be at least one of a human-blood-insensitive wavelength and a human-skin-impenetrable wavelength. |
申请公布号 |
US2017095211(A1) |
申请公布日期 |
2017.04.06 |
申请号 |
US201514872605 |
申请日期 |
2015.10.01 |
申请人 |
Silicon Laboratories Inc. |
发明人 |
Wang Qin;Zhang Yahui;Clark David;Altmejd Moshe M. |
分类号 |
A61B5/00;A61B5/024 |
主分类号 |
A61B5/00 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
a sensor module configured to generate a first sensed signal based at least in part on detection of a first signal having a first wavelength and configured to generate a second sensed signal based at least in part on detection of a second signal having a second wavelength different from the first wavelength; and a processing circuit configured to generate a plethysmogram based at least in part on the first sensed signal and the second sensed signal. |
地址 |
Austin TX US |