Power control method, distance measuring module and electronic device
US10754031B2 · kind B2 · utility
2Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4013
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present application provides a power control method, applied in a distance measuring module comprising a light emitting unit. The power control method comprises steps of the light emitting unit emitting an incident light by a first emitting power in a first time; receiving a reflected light corresponding to the incident light; determining a distance between the distance measuring module and a target according to the reflected light; and adjusting an emitting power of the light emitting unit according to the distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.