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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 11533082 B1

PDFFull Text
Date of Patent:
Dec. 20, 2022

Filed:

Mar. 10, 2021

Wirelessly charged electronic device with shared inductor circuitry

Applicant:

Apple Inc., Cupertino, CA (US);

Inventor:

Jeffrey J. Terlizzi, Los Gatos, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:

Treyz Law Group, P.C.

G. Victor Treyz

David K. Cole

Primary Examiner:

David Bilodeau

Int. Cl.
CPC ...
H04B 5/00 (2006.01); H01F 38/14 (2006.01); H02J 50/12 (2016.01); H04B 1/3827 (2015.01); H04W 4/80 (2018.01); H02J 50/10 (2016.01); H02J 50/20 (2016.01); H04W 12/06 (2021.01); H04W 12/08 (2021.01); H04R 25/00 (2006.01); H02J 7/00 (2006.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04B 5/0037 (2013.01); H01F 38/14 (2013.01); H02J 50/10 (2016.02); H02J 50/12 (2016.02); H02J 50/20 (2016.02); H04B 1/385 (2013.01); H04B 5/0006 (2013.01); H04B 5/0031 (2013.01); H04W 4/80 (2018.02); H04W 12/06 (2013.01); H04W 12/08 (2013.01); H01F 2038/143 (2013.01); H02J 7/00034 (2020.01); H04R 25/602 (2013.01); H04W 84/12 (2013.01);
Abstract

An electronic device may contain an input-output device such as a speaker, vibrator, or near field communications antenna. The input-output device may include an inductor. The inductor in the input-output device may be shared by wireless charging circuitry in the electronic device so that wireless charging signals can be converted into power to charge a battery in the electronic device. A separate inductor may also be provided within an input-output device to support wireless charging. A drive circuit may supply drive signals to the input-output device such as audio signals, vibrator control signals, or near field communications output signals for external near field communications equipment. An input amplifier that is coupled across the inductor in the input-output device may be used in receiving near field communications signals.

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