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:
Nov. 03, 2026
Filed:
Mar. 21, 2024
Apple Inc., Cupertino, CA (US);
Hanwei Wang, Urbana, IL (US);
Giuseppe Pinto, San Francisco, CA (US);
Ruiyang Lin, Milpitas, CA (US);
Tao Li, San Jose, CA (US);
Srinivasa V Thirumalai Ananthan Pillai, Santa Clara, CA (US);
Jukka-Pekka J Sjoeroos, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A wireless power transmitter (WPT) can include WPT circuitry having a wireless WPT coil that transmits wireless power signals; and control circuitry coupled to the WPT circuitry that: measures a present value of a first function of quality factor and resonant frequency of the wireless power transmitting coil and a present value of a second function of quality factor and resonant frequency of the WPT coil while the WPT is coupled to a wireless power receiver; determines a change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency of the WPT coil; determines whether a foreign object is present responsive to the change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency exceeding a threshold in a magnetic state space.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile