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:
Feb. 25, 2020
Filed:
Sep. 21, 2016
Applicant:
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Inventors:
Takeshi Mitsunaka, Sakai, JP;
Kunihiko Iizuka, Sakai, JP;
Akira Saito, Sakai, JP;
Nobuyuki Ashida, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/22 (2006.01);
U.S. Cl.
CPC ...
G01N 27/228 (2013.01); G01N 27/221 (2013.01); G01N 27/223 (2013.01); G01N 27/226 (2013.01); G01N 27/227 (2013.01);
Abstract
To detect changes in the physical properties of an examination object as changes in a plurality of different oscillation frequencies using signals with the oscillation frequencies, a sensor circuit includes: an oscillation circuit () with a first resonant frequency; an oscillation circuit () with a second resonant frequency different from the first resonant frequency; and a detection circuit () that detects oscillation frequencies of the oscillation circuit () and the oscillation circuit ().