Emergency vehicle alert system

Details Emergency vehicle alert system Emergency vehicle alert system

G - Physics

08

G

G08G 1/0965 (2006.01) B60Q 9/00 (2006.01) G01H 3/08 (2006.01)

Patent

CA 2591099

The emergency vehicle alert system may be used for detection of selected sound frequency signals emitted by warning devices of vehicles. A sensor may sense a selected sound frequency signal spectrum and may be in communication with multiple operational amplifiers. The operational amplifiers may be biased to detect a warning device sound source within 50 feet and within 1,500 feet of the sensor, The detection of a warning device sound source may be communicated to a warning indicator to activate the warning indicator.

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