Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in another vehicle
Patent
1997-03-19
1999-03-30
Swarthout, Brent A.
Communications: electrical
External condition vehicle-mounted indicator or alarm
Transmitter in another vehicle
340906, G08G 100
Patent
active
058894756
ABSTRACT:
A system for warning of an approaching emergency vehicle comprising of a transmitter, a receiver, an audio and visual indicator. The transmitter transmitting a broad ban of AM and FM frequencies that are broadcasted of a short range to audible warn vehicles and pedestrian through existing radios of an approaching emergency vehicle. The transmitter also sending a signal to the receiver having circuitry to activate and deactivate audible and visual warning indicators of an approaching emergency vehicle. The audible and visual indicators are normally affixed to typical traffic signal located at street intersections.
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Fuller Don
Klosinski Stefan
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