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. 09, 2017
Filed:
Aug. 22, 2014
Applicant:
Nxp B.v., Eindhoven, NL;
Inventor:
Thomas Klaus Rudolph, Hamburg, DE;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H04B 5/00 (2006.01); H02J 5/00 (2016.01); G01R 29/08 (2006.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); G01R 29/0814 (2013.01); H02J 5/005 (2013.01); H04B 5/0037 (2013.01); H04B 5/0075 (2013.01);
Abstract
A wireless charging system is disclosed. The wireless charging system includes a coil to create electromagnetic field and a sniffer system to detect a presence of a low frequency (LF) signal. The sniffer system is configured to deactivate the coil for a predetermined duration and perform an operation to detect the presence of the LF signal.