Force sensing for PPG heart-rate performance enhancement and contact detection
US10874348B1 · kind B1 · utility
15Cited by
20References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1455
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure generally relates to wearable devices and methods for measuring a photoplethysmographic signal. The wearable devices and methods may include a force sensor that provides input used for motion-noise filtering to obtain improved PPG signals. Feedback from the force sensor may also be used to indicate whether the amount of pressure exerted by the device should be adjusted, or whether the device should be switched to a locked state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.