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:
Jul. 15, 2025
Filed:
Oct. 16, 2023
Richtek Technology Corporation, Hsinchu, TW;
Fu-Chi Lin, Hsinchu, TW;
Richtek Technology Corporation, Hsinchu, TW;
Abstract
A wireless power transmitter circuit generates a wireless transmitting power during a power supply procedure, and determines whether there is a corresponding wireless power receiver circuit near by the wireless power transmitter circuit during a groping procedure. The groping procedure includes: step S, generating a first analog groping transmitting signal; step S, determining whether there is an electromagnetic inductive object near by the wireless power transmitter circuit according to an electrical characteristic related to the first analog groping transmitting signal, and when yes, proceeding to step S, otherwise proceeding back to the step Safter a first predetermined period; step S: generating a digital groping transmitting signal; and step S, determining whether there is a corresponding wireless power receiver circuit near by the wireless power transmitter circuit according to a reflect signal.