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:
Sep. 29, 2026
Filed:
Mar. 20, 2024
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sangwook Lee, Suwon-si, KR;
Kyungmin Lee, Suwon-si, KR;
Bohwan Choi, Suwon-si, KR;
Jinsoo Choi, Suwon-si, KR;
Sungbum Park, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
The disclosure relates to an electronic device and a method for detecting a foreign body, wherein a control circuit of the electronic device may be configured to: supply transmission power to a power transmission circuit; identify, on the basis of a low power wireless communication signal, whether an external device is present in a partial area of the externally exposed surface of the electronic device, which corresponds to a resonant circuit; on the basis of the presence of the external device, apply a high frequency current to the resonant circuit and transmit transmission power generated in the resonant circuit to the external device; obtain analog digital converter samples in a half-wave rectified direct current interval of a direct current link voltage corresponding to a transmission current detected in the power transmission circuit; and detect a foreign body on the basis of the analog digital converter samples.