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. 31, 2017
Filed:
Oct. 08, 2015
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Kenichi Asanuma, Osaka, JP;
Hiroshi Yamamoto, Osaka, JP;
Assignee:
PANASONIC CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/42 (2006.01); H02J 5/00 (2016.01); H02J 17/00 (2006.01); H02J 7/02 (2016.01); H02J 50/90 (2016.01); H02J 50/60 (2016.01); H02J 50/12 (2016.01);
U.S. Cl.
CPC ...
H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 17/00 (2013.01); H02J 50/12 (2016.02); H02J 50/60 (2016.02); H02J 50/90 (2016.02);
Abstract
A wireless power transmitting device includes a self-oscillator circuit, a detection circuit that detects at least one of an oscillation frequency of the self-oscillator circuit and an output voltage of the self-oscillator circuit, a detection resonator that outputs, to detect a position of the power receiving device, power output by the self-oscillator circuit, and a control circuit that detects a degree to which the power receiving device approaches the detection resonator, based on a result of a detection performed by the detection circuit.