The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2012
Filed:
Jun. 02, 2011
Yoshito Sameda, Aoba-ku, JP;
Kenji Nakano, Kodaira, JP;
Yukio Takanohashi, Hachioji, JP;
Hiroto Uyama, Tokyo, JP;
Masaaki Ishino, Machida, JP;
Yoshito Sameda, Aoba-ku, JP;
Kenji Nakano, Kodaira, JP;
Yukio Takanohashi, Hachioji, JP;
Hiroto Uyama, Tokyo, JP;
Masaaki Ishino, Machida, JP;
Toshiba Toko Meter Systems Co., Ltd., Tokyo, JP;
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.