Virtual railroad crossing alert
US9688297B2 · kind B2 · utility
3Cited by
6References
1Claims
0Family size
Inventor
Key dates
| Filing date | Sep 17, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Nov 25, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L2205/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
System and method for a virtual crossing alert system that provides a notification, an alert, or a command to an alert receiving system depending on the spatial relationships of actors within a specified area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.