Communications: electrical – Land vehicle alarms or indicators – External signal light system
Reexamination Certificate
2005-04-26
2005-04-26
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Land vehicle alarms or indicators
External signal light system
C340S463000, C340S384720
Reexamination Certificate
active
06885295
ABSTRACT:
A reversing alarm for a vehicle emits an audible signal in the form of pulses of broad band sound when the vehicle is put into reverse gear. The broad band sound allows persons in the vicinity to locate the vehicle, as the human brain is able to process broad band sound to pinpoint the location of the sound source in a way which is not possible with single tone sounds. The alarm is implemented via a simple electronic circuit which uses a zener diode as a signal generator20to generate the broad band sound.
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Hanson-Abbott Christopher
Yamashita Masato
Brigade Electronics Plc
Cook Alex McFarron Manzo Cummings & Mehler, Ltd.
Hofsass Jeffery
Stone Jennifer
Yamaguchi Electric Ind. Co. Ltd.
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