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:
May. 21, 2024
Filed:
Apr. 14, 2017
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Hiroaki Nakano, Tokyo, JP;
Takaaki Hashiguchi, Tokyo, JP;
Shinichi Fukuda, Kanagawa, JP;
Kenichi Fujimaki, Kanagawa, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 50/80 (2016.01); H02J 50/12 (2016.01); H02J 50/60 (2016.01); H04B 5/79 (2024.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01);
U.S. Cl.
CPC ...
H02J 50/80 (2016.02); H02J 50/12 (2016.02); H02J 50/60 (2016.02); H04B 5/79 (2024.01); H02J 7/00 (2013.01); H02J 7/345 (2013.01);
Abstract
A method for wireless power transmission includes obtaining, via a Q-value circuit, first and second voltages at respective first and second nodes of a resonance circuit. The first and second voltages are effective to determine if foreign matter is present in a space affecting wireless power transmission. The method includes controlling a switching section between the Q-value circuit and the resonance circuit such that at least a part of the electric power transmission process occurs at a different time than when the first and second voltages are obtained.