Signal quality detection method and signal detection device thereof
US12089961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2021 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Jul 22, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7246
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a signal quality detection method for an ear-chip physiological measurement device. The signal quality detection method includes receiving a sensing signal from the ear-clip physiological measurement device; filtering the sensing signal to generate a pre-processed signal; calculating a physiological index according to the pre-processed signal; and calculating a similarity of a red light alternating current (AC) component and an infrared light AC component of the pre-processed signal and a plurality of correlation coefficients of the red light AC component, and generating a reliability index of the physiological index accordingly. The reliability index indicates one of a plurality of signal qualities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.