Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2011-06-28
2011-06-28
Dunn, Drew A (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
Reexamination Certificate
active
07970557
ABSTRACT:
A gas appliance judgment apparatus and method by which a type of gas appliance in use and the existence of a gas leak can be identified. In operation, noise is removed from measured instantaneous flow volume, whereupon the “length”, “initial flow volume” and “sequence of transited regions” of the variable portion of the flow volume and the “length”, “average value” and “gradient” of the flat portion of the flow volume are extracted. A rule having characteristics data which matches the characteristics of the variable portion and the flat portion of the flow volume is then searched, and points are added respectively for the type of gas appliance and for the existence of a gas leak. When the added points are not less than a previously established threshold value, then the type of gas appliance in use is determined, and appliance type information is output as a judgment result.
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Ishino Masaaki
Nakano Kenji
Sameda Yoshito
Takanohashi Yukio
Uyama Hiroto
Dunn Drew A
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sun Xiuquin
Toshiba Toko Meter Systems Co., Ltd.
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