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. 04, 2017
Filed:
Oct. 07, 2015
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto, JP;
Inventors:
Lasse Aaltonen, Espoo, FI;
Jouni Erkkilä, Helsinki, FI;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3187 (2006.01); G01R 31/28 (2006.01); G01P 15/125 (2006.01); G01P 21/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2884 (2013.01); G01P 15/125 (2013.01); G01P 21/00 (2013.01);
Abstract
A capacitive sensor that includes at least one capacitive element and a switched-capacitor readout circuit part for detecting at least one signal capacitance that results from motions of the capacitive element. The self-test bias voltage of the actuation circuit part is coupled to the capacitive element during a first period that is synchronized to the front end reset period and occurs when the self-test of the capacitive sensor is enabled by the self-test controller.