Multiple source-detector pair photoplethysmography (PPG) sensor
US11779231B2 · kind B2 · utility
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105References
20Claims
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Key dates
| Filing date | Jul 2, 2021 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems, devices, and methods for tracking one or more physiological metrics (e.g., heart rate, blood oxygen saturation, and the like) of a user are described. For example, one or more light sources and one or more light detectors may be positioned on a wearable device such that light can be emitted towards the user's skin and further such that light reflected back to the wearable device can be measured and used to generate values for the one or more physiological metrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.