Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-03-28
2006-03-28
Nguyen, Hung (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S665000, C340S667000, C340S436000, C340S438000, C701S045000, C701S049000
Reexamination Certificate
active
07019660
ABSTRACT:
The present invention has as its object to provide a vehicle passenger detection device that is able to prevent erroneous determinations arising from mechanical hysteresis. The present invention provides a vehicle passenger detection device comprising: weight measurement means, provided with a weight sensor disposed between a seat and floor of a vehicle, that measures the load applied to the seat; fluctuation amplitude detection means that detects the amplitude of fluctuation in values measured by the weight measurement means; correction means that applies a negative correction to the value measured by the weight measurement means when the fluctuation amplitude is smaller than a stipulated value; and passenger presence determination means that determines the presence of a passenger upon the seat by comparing the value measured by the weight measurement means against a stipulated threshold value.
REFERENCES:
patent: 6246936 (2001-06-01), Murphy et al.
patent: 6598900 (2003-07-01), Stanley et al.
patent: 6696948 (2004-02-01), Thompson et al.
patent: 2002/0024257 (2002-02-01), Fujimoto et al.
patent: 2000-258233 (2000-09-01), None
European Search Report dated Jan. 9, 2004.
Nishimoto Yousuke
Seto Takayuki
Mazda Motor Corporation
Nguyen Hung
Nixon & Peabody LLP
Studebaker Donald R.
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