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:
Oct. 27, 2020
Filed:
Sep. 27, 2017
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Hiroaki Nakano, Tokyo, JP;
Tomomichi Murakami, Tokyo, JP;
Shinichi Fukuda, Kanagawa, JP;
Osamu Kozakai, Kanagawa, JP;
Kenichi Fujimaki, Kanagawa, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 5/00 (2016.01); H04B 5/00 (2006.01); H02J 50/80 (2016.01); H02J 50/60 (2016.01); H02J 50/12 (2016.01); B60L 53/124 (2019.01);
U.S. Cl.
CPC ...
H04B 5/0037 (2013.01); B60L 53/124 (2019.02); H02J 50/12 (2016.02); H02J 50/60 (2016.02); H02J 50/80 (2016.02);
Abstract
An electromagnetically-coupled state detection circuit including a detection unit that measures a primary side Q value of a circuit containing a primary side coil electromagnetically coupled with a secondary side coil and power transmission efficiency to the secondary side coil, corrects the power transmission efficiency based on the Q value of the primary side coil, and detects a state of electromagnetic coupling with the secondary side coil based on an obtained corrected value of the power transmission efficiency.