Baseline correction and extraction of heartbeat profiles
US11445927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Mar 19, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6828
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device may determine end-of-phase information for a plurality of wavelength channels of photoplethysmography (PPG) data. The device may calculate a set of baseline correction points for each wavelength channel of the plurality of wavelength channels. The set of baseline correction points may be calculated based on end-of-phase information for a wavelength channel of the plurality of wavelength channels and PPG data associated with the wavelength channel. The device may perform a baseline correction for each wavelength channel of the plurality of wavelength channels. A baseline correction may be performed for the wavelength channel based on the set of baseline correction points associated with the wavelength channel and the PPG data associated with the wavelength channel. The device may generate a baseline corrected heartbeat profile using a principal component analysis of a result of baseline correcting each wavelength channel of the plurality of wavelength channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.