Directional audio train signaling system and method
US7429935B1 · kind B1 · utility
6Cited by
9References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Oct 25, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L29/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for a directional audio train signaling system that comprises a receiver for receiving a signal indicating the approach of a train to a point of interest and one or more directional audio transmitter systems for transmitting a warning related to the approach of a train. A plurality of directional audio transmitters may be used, each with a footprint covering a portion of a roadway approaching an intersection. The receiver may be associated with an acknowledgement transmitter such that a train system confirms receipt of the alarm signal at the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.