Terminal based on photo plethysmo graph PPG
US12318177B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2022 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Aug 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of this application provide a terminal based on photo plethysmo graph PPG. The terminal includes an LED, an AFE chip, a processor, a delay circuit, and a plurality of PDs, the first PD is configured to receive a second optical signal reflected by the skin of the user, and convert the second optical signal into a first electrical signal; the second PD is configured to receive the second optical signal reflected by the skin of the user, and convert the second optical signal into a second electrical signal; the delay circuit is configured to perform delay processing on the first electrical signal; the AFE chip is configured to determine a target signal based on the second electrical signal and the first electrical signal subjected to the delay processing; and the processor is configured to process the target signal to obtain a health status of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.