Device and method to detect presence in a motor vehicle

Details Device and method to detect presence in a motor vehicle Device and method to detect presence in a motor vehicle

2008-07-01

2008-07-01

Crosland, Donnie L (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

C340S426180, C340S539260, C340S539100, C180S271000, C307S010100

Reexamination Certificate

active

07394349

ABSTRACT:
A device to detect the presence of a living being in a motor vehicle includesa carbon dioxide sensor to measure a concentration value representing the carbon dioxide concentration in the motor vehicle,an analysis unit to compare the concentration value or a change value representing the change in the concentration value over time to a threshold,a transmitting device activated when the concentration value or the change value exceeds the threshold and emitting radiated signals by way of an antenna anda receiving device that activates an indicator device when these radiated signals are received by way of an additional antenna.

REFERENCES:
patent: 6424267 (2002-07-01), Schell
patent: 6768420 (2004-07-01), McCarthy et al.
patent: 7109853 (2006-09-01), Mattson et al.
patent: 3740770 (1989-06-01), None
patent: 196 29 940 (1998-01-01), None
patent: 10020508 (2000-11-01), None

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