System and method for motion detection using a PPG sensor
US10466783B2 · kind B2 · utility
5Cited by
1References
30Claims
0Family size
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Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Aug 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/163
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A photoplethysmography (PPG) circuit obtains PPG signals at one or more wavelengths. The PPG signal is processed to identify motion artifacts. The motion artifacts are correlated with predetermined PPG signal patterns associated with a movement of a body part. The PPG signals may thus be used to detect movement of the body part. A user device may be controlled in response to the detected movement of the body part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.