Heart rate sensor with high-aspect-ratio photodetector element
A technology for photodetectors and components, used in optical sensors, sensors, diagnostic recording/measurement, etc., to solve problems such as the inability of light to reach the photodetector directly
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[0085] The present invention relates to PPG sensors, and more particularly to wearable biometric monitoring devices (also referred to herein as "biometric tracking devices", "biometric tracking modules", "wearable health monitors") etc.) for use with PPG sensors. The inventors have determined that the use of non-square photodetector elements in a PPG sensor can provide significant performance improvements over conventional PPG designs that typically utilize square photodetector elements. The inventors also determined that this performance increase could be obtained if desired, while still maintaining essentially the same power consumption as a square photodetector element in a conventional PPG design.
[0086] figure 2 Depicted is a simplified representation of a wrist-worn wearable health monitor 200 incorporating a PPG sensor using non-square photodetector elements according to an example implementation of concepts implemented by the present inventors and discussed below. ...
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