Methods and system for multi-channel bio-optical sensing
US11690513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2018 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sensor, such as a photoplethysmography sensor, for non-invasively monitoring a characteristic of an organism, such as a vital body sign. The sensor has multiple light sources disposed on a substrate and an array of optical probing channels for conveying light from the light sources to a probed region. Each detector pixel of an array of detector pixels receives light from a respective optical detection channel after interaction with a subregion of the probed region and spatial filtering, and generates a corresponding pixel signal. A processor derives a value of the vital body sign based at least upon the plurality of pixel signals
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.