Physiological detection device with different polarizers
US11980440B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 7, 2022 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is provided a physiological detection device including a light source, a light detector, a processing unit and a display device. The light source emits light to illuminate a skin surface. The light detector receives the light from the skin surface to output detected signals. The processing unit confirms an attached state according to the detected signals and controls the display device to show an indication signal or a warning message when the attached state is confirmed not good.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.