Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-04-17
2007-04-17
Pope, Daryl C (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S665000, C340S666000, C340S636120, C307S010100
Reexamination Certificate
active
10996438
ABSTRACT:
In an occupant detection system, a determination section of an occupant detection ECU determines occupancy status of the seat based on loads applied to the seat. A power supply section of the ECU provides a power supply voltage lower than a battery voltage of the vehicle to load sensors and the determination section. A resistor is connected in a sensor power supply line that connects the load sensors with the power supply section. A zener diode is connected between the resistor and the power supply section through branch connection. A resistance of the resistor is predetermined so that the resistor becomes open when a short occurs and does not affect to dynamic ranges of the load sensors. A breakdown voltage of the zener diode is predetermined between the power supply voltage and a guaranteed voltage of the ECU.
REFERENCES:
patent: 6257363 (2001-07-01), Midorikawa et al.
patent: 6335577 (2002-01-01), Baba
patent: 6384551 (2002-05-01), Watanabe
patent: 7039503 (2006-05-01), Kiribayashi
patent: 7055639 (2006-06-01), Kiribayashi
patent: A-2003-196790 (2003-07-01), None
Denso Corporation
Pope Daryl C
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