VLC in streets
US11722892B2 · kind B2 · utility
1Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jun 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/25
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A visual light communication emitter for a vehicle, arranged to communicate a status of the vehicle, includes a first light emitter arranged to emit flash light which is modulated at a first target frequency in a dedicated non-visible spectrum, and a second light emitter arranged to emit flash light which is modulated at a second target frequency in the dedicated non-visible spectrum. A difference between the first target frequency and the second target frequency is predetermined, so as to authenticate the status of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.