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:
Jan. 10, 2017
Filed:
Mar. 25, 2014
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Yuzo Higuchi, Komaki, JP;
Tomonori Uemura, Komaki, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A sensor control apparatus () of a gas detection system () includes a first low-pass filter (), a second low-pass filter (), and a multiplexer () so as to provide different time constants for detection of a sensor output signal Vsand for detection of a response signal Vs. When the sensor output signal Vsis detected, a signal whose frequency band is the same as that of Vsis input to the analog-to-digital conversion section () through the first low-pass filter (). Therefore, the detection accuracy of Vsis increased. When Vsis detected, a signal whose frequency band is the same as that of Vsis input to the analog-to-digital conversion section () through the second low-pass filter ().