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:
Dec. 08, 2020
Filed:
Aug. 31, 2015
Kyocera Corporation, Kyoto, JP;
Hiroshi Katta, Kyoto, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A sensor device includes: a first signal generator and a second signal generator which each generate at least one of a signal of a first frequency and a signal of a second frequency; and a calculation part configured to obtain a reference phase difference based on a first reference signal which is obtained by generating the signal of the first frequency from the first signal generator in such a state that the calculation part is connected to the first signal generator, and a second reference signal which is obtained by generating the signal of the second frequency from the second signal generator in such a state that the calculation part is connected to the second signal generator, and calculates a reference voltage corresponding to the reference phase difference based on the first reference signal and the second reference signal in accordance with a heterodyne system.