Fixtures with signaling devices
US11710396B2 · kind B2 · utility
0Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2020 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Dec 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light fixture for a public transportation train system powers an antenna used for train signaling. The antenna can provide to the train a location marker associated with the location of the antenna. The antenna can provide to the train other data communicated to the light fixture through the light fixture communication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.