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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.:

US 11509169 B1

PDFFull Text
Date of Patent:
Nov. 22, 2022

Filed:

Mar. 11, 2019

Sub-surface wireless charging

Applicant:

Spark Connected Llc, Dallas, TX (US);

Inventors:

Petru Emanuel Stingu, Dallas, TX (US);

Kenneth Moore, Dallas, TX (US);

Yulong Hou, Farmers Branch, TX (US);

Ruwanga Dassanayake, Dallas, TX (US);

Assignee:

SPARK CONNECTED LLC, Dallas, TX (US);

Attorney:

Slater Matsil, LLP

Primary Examiner:

Edward Tso

Assistant Examiner:

Ahmed H Omar

Int. Cl.
CPC ...
H02J 50/90 (2016.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H01F 27/28 (2006.01); H02J 50/50 (2016.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H01F 27/2804 (2013.01); H02J 7/025 (2013.01); H02J 50/40 (2016.02); H02J 50/50 (2016.02);
Abstract

In an embodiment, a sub-surface wireless charger includes a transmitter coil and a controller. The controller is configured to generate a protective pulse having a first energy, determine a characteristic of the transmitter coil based on the generated protective pulse, determine whether it is safe to begin wireless charging based on the determined characteristic, and when the controller determines that it is safe to begin wireless charging, generate an operating pulse having a second energy, where the second energy is higher than the first energy.

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