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. 26, 2019
Filed:
Oct. 20, 2016
Applicant:
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Inventors:
Assignee:
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/02 (2016.01); H02J 50/10 (2016.01);
U.S. Cl.
CPC ...
H02J 50/10 (2016.02); H02J 7/025 (2013.01);
Abstract
A wireless power transmitter includes a resonator configured to transmit a detection signal; a period detector configured to detect a period of oscillation of an oscillation signal caused by remnants of the detection signal; and a controller configured to determine whether an external charging object is approaching in response to a change in the period of the oscillation signal.