System for warning a failure to wear a seat belt

Details System for warning a failure to wear a seat belt System for warning a failure to wear a seat belt

2006-06-13

2006-06-13

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S425500, C340S457000, C340S438000

Reexamination Certificate

active

07061375

ABSTRACT:
In a system for warning a failure to wear a seat belt to urge a vehicle operator to wear the seat belt, a sound emitter is activated when a vehicle speed is higher than a threshold level and the seat belt is not fastened. The sound emitter cyclically alternates between a sound emitting state and a silent state when activated, the silent state lasting for a period of at least three seconds each time. Because the silent state is interposed between sound emitting states and because the warning is not emitted when traveling for a short period of time at a low speed, for instance, in a parking garage or the like or when the vehicle is stationary, the annoyance to the vehicle operator is minimized while allowing the vehicle operator to be kept warned.

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