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. 18, 2025
Filed:
Jul. 01, 2022
Delta Electronics (Shanghai) Co., Ltd., Shanghai, CN;
Delta Electronics (Shanghai) Co., Ltd., Shanghai, CN;
Abstract
The disclosure provides a detection signal for detecting a power receiving device in wireless charging, wherein the detection signal is configured to wake up the power receiving device in a wireless charging field, and cause the power receiving device to generates a feedback signal based on a modulation wave of about 2 kHz; a duration time of the detection signal is greater than 1 millisecond and less than 65 milliseconds; and the detection signal is configured to identify the modulation wave. The disclosure further provides a wireless charging method for a wireless charging device using the detection signal, and a wireless charging device using the detection signal.