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:
Oct. 24, 2023
Filed:
Nov. 12, 2020
Apple Inc., Cupertino, CA (US);
Jouya Jadidian, Saratoga, CA (US);
Vaneet Pathak, Los Altos, CA (US);
Martin Schauer, Fremont, CA (US);
Cheung-Wei Lam, San Jose, CA (US);
Darshan R. Kasar, San Francisco, CA (US);
Christopher S. Graham, San Francisco, CA (US);
Andro Radchenko, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A shield for redirecting magnetic field generated from a plurality of transmitter coils includes a ferromagnetic structure divided into segments by a plurality of boundary regions, each segment comprises a first material having a first magnetic permeability and each boundary region comprises a second material having a second magnetic permeability lower than the first magnetic permeability, where the plurality of boundary regions are configured to resist a propagation of magnetic field from a first area of the ferromagnetic structure to a second area of the ferromagnetic structure, where the first area intercepts the magnetic field generated from at least one active transmitter coil of the plurality of transmitter coils.