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:
Sep. 08, 2020
Filed:
Jul. 24, 2019
Applicant:
Apple Inc., Cupertino, CA (US);
Inventor:
Jeffrey Douglas Louis, Freemans Bay, NZ;
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H02J 50/10 (2016.01); H02J 50/60 (2016.01); H02J 50/80 (2016.01); H04B 1/04 (2006.01); H04L 27/12 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0037 (2013.01); H02J 50/10 (2016.02); H02J 50/60 (2016.02); H02J 50/80 (2016.02); H04B 1/04 (2013.01); H04B 5/0075 (2013.01); H04B 5/0081 (2013.01); H04L 27/12 (2013.01);
Abstract
An inductive power transmitter comprising a transmission circuit having a coil, the transmission circuit tuned, adapted or optimised at or about a first frequency for inductive power transfer or object detection; an inverter operable to drive the transmission circuit at the first frequency; and a controller arranged to control the inverter to drive the transmission circuit at a second higher frequency, and to modulate a signal at the second higher frequency according to a predetermined handshake signal in order to generate a response from a predetermined non-authorised device proximate the coil.