PPG sensor and method of operating the same
US11540738B2 · kind B2 · utility
0Cited by
7References
20Claims
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Key dates
| Filing date | Jan 22, 2020 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Mar 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photoplethysmogram (PPG) sensor includes a pixel array that collects light, a pixel sampler that converts the light collected through the pixel array into a plurality of pixel data, an effective area determiner that determines an effective area and a non-effective area of the pixel array based on the pixel data, a power controller that is operable to cut off power to the non-effective area of the pixel array, and a PPG data generator that generates PPG data from pixel data corresponding to the effective area among the pixel data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.