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. 29, 2025
Filed:
Apr. 27, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sangwook Lee, Suwon-si, KR;
Sungbum Park, Suwon-si, KR;
Youngho Ryu, Suwon-si, KR;
Kyungmin Lee, Suwon-si, KR;
Cheonyong Lim, Suwon-si, KR;
Jinsu Choi, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.