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:
Jun. 24, 2025
Filed:
May. 10, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sangun Bang, Seongnam-si, KR;
Duseung Oh, Hwaseong-si, KR;
Dongjo Kim, Suwon-si, KR;
Dongjoon Kim, Seoul, KR;
Jinsoo Lee, Hwaseong-si, KR;
Sungkyu Cho, Hwaseong-si, KR;
Woonhyung Heo, Seoul, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A device for detecting an attachment and detachment of a portable device according to example embodiments of the present disclosure may include a first terminal and a second terminal configured to be connected to the portable device; a pull-up circuit connected to the first terminal; a charging circuit configured to generate an output voltage for charging the portable device; and a controller configured to control the charging circuit to generate the output voltage when a voltage of the first terminal drops in a detachment state, and determine whether to transition to an attachment state based on an output current output through the first terminal during a first period in which the output voltage is generated.