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:
Aug. 21, 2018
Filed:
Mar. 25, 2015
Citizen Finedevice Co., Ltd., Minamitsuru-gun, Yamanashi, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
CITIZEN FINEDEVICE CO., LTD., Yamanashi, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
Abstract
There is provided a pressure detection device () including: a pressure detection element () which receives pressure (P) so as to output a detection signal (Qi) corresponding to the pressure (P); and a processing circuit () which processes and outputs the detection signal (Qi) output from the pressure detection element (), where on a circuit board () on which a conductor pattern is formed, an integrated circuit (IC) including an analog circuit which uses a reference voltage (Vr) set to a predetermined voltage value as an operation reference and converts the detection signal (Qi) into a voltage waveform is mounted, and the processing circuit () includes an input circuitwhich feeds the detection signal (Qi) to the integrated circuit (IC) and a shield pattern (SHP) which surrounds the region of at least a part of the input circuit () and to which the reference voltage (Vr) is applied.