Emergency vehicle detection device

Details Emergency vehicle detection device Emergency vehicle detection device

1991-10-01

1993-08-10

Ng, Jin F.

Communications: electrical

External condition vehicle-mounted indicator or alarm

Transmitter in another vehicle

340903, 340904, 340906, 455 341, 455 342, 455 542, G08G 100

Patent

active

052353290

ABSTRACT:
A combination to detect the proximity of an emergency vehicle including a transmitter in the emergency vehicle and a receiver in another vehicle, the receiver actuating an alarm such as a blinking light upon the reception of a transmission from an emergency vehicle.

REFERENCES:
patent: 3673560 (1972-06-01), Barsh et al.
patent: 3772641 (1973-11-01), Grosser et al.
patent: 3784970 (1974-01-01), Simpkin
patent: 4216545 (1980-08-01), Flickshu et al.
patent: 4443790 (1984-04-01), Bishop
patent: 4794394 (1988-12-01), Halstead
patent: 5091906 (1992-02-01), Reed et al.

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