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:
Dec. 31, 2024
Filed:
Jul. 20, 2023
Lg Innotek Co., Ltd., Seoul, KR;
Yu Ri Park, Seoul, KR;
Yong Il Kwon, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
A wireless power transmitter for transmitting power to a wireless power receiver, including a controller configured to determine whether a foreign object is present; and a transmission part configured to transmit wireless power according to whether the foreign object is present, wherein the controller receives a foreign object detection status packet including at least one of a reference quality factor and a reference peak frequency from the wireless power receiver, and detects whether the foreign object is present based on the foreign object detection status packet, wherein the controller transmits a NAK response indicating that the foreign object is present or an ACK response indicating that the foreign object is not present to the wireless power receiver, and wherein the transmission part transmits a first power to the wireless power receiver according to the transmitted NAK response or transmits a second power greater than the first power to the wireless power receiver according to the transmitted ACK response.