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:
Feb. 20, 2024
Filed:
Feb. 19, 2021
Apple Inc., Cupertino, CA (US);
Zelin Xu, San Jose, CA (US);
Nan Liu, Sunnyvale, CA (US);
Zaki Moussaoui, San Carlos, CA (US);
Gianpaolo Lisi, Santa Clara, CA (US);
Kunal Bhargava, Auckland, NZ;
Madhusudanan Keezhveedi Sampath, San Jose, CA (US);
Matthew J. Chabalko, Santa Cruz, CA (US);
Robert Scritzky, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A device in a wireless power system may be operable with a removable accessory such as a case. The device may transmit or receive wireless power through the case while the electronic device is coupled to the case. The case may have a folio shape with a front cover portion that covers the display of the electronic device. The case may have an embedded ferrimagnetic core that relays magnetic flux during wireless power transfer operations. Magnetic alignment structures in the case may position the ferrimagnetic core in the case in a high magnetic flux density region between the power transmitting device and the power receiving device. The ferrimagnetic core relays the magnetic flux between a transmitting coil in the power transmitting device and a receiving coil in the power receiving device. The ferrimagnetic core may be formed in a front portion, a sidewall, or a rear wall of a case.