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:
Apr. 28, 2026
Filed:
Jun. 02, 2022
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Yusu Kim, Gyeonggi-do, KR;
Seho Park, Gyeonggi-do, KR;
Hyungkoo Chung, Gyeonggi-do, KR;
Dohyeon Kim, Gyeonggi-do, KR;
Byunghwa Park, Gyeonggi-do, KR;
Wooram Lee, Gyeonggi-do, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
According to an embodiment, a wireless power transmitting device may include a transmission coil, a power providing circuit, and at least one controller. The at least one controller may be configured to control the power providing circuit to apply first power to the transmission coil, identify a resonant frequency, based on a voltage measured at the transmission coil in response to the first power applied to the transmission coil, based on a difference between the identified resonant frequency and a reference frequency meeting a designated condition, identify that a foreign object is placed on a charging area of the wireless power transmitting device, and based on the difference between the identified resonant frequency and the reference frequency failing to meet the designated condition, control the power providing circuit to apply, to the transmission coil, at least one second power for performing communication with a wireless power receiving device.