Synchronized traffic warning signal system
US9666068B2 · kind B2 · utility
2Cited by
21References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 18, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/559
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A traffic warning signal system includes a substrate, and at least one light-emitting device embedded into the substrate and placed in proximity to a traffic signal such as to be visible upon approach to the traffic signal, such as the at least one light-emitting device is synchronized in at least one of a timing, a color, or a frequency with the traffic signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.