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:
Nov. 09, 2021
Filed:
Sep. 23, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sung-Woo Lee, Suwon-si, KR;
Hyoung-Seok Oh, Seoul, KR;
Sang-Hee Kang, Hwaseong-si, KR;
Kwang-Chan Lee, Hwaeseong-si, KR;
Dae-Woong Cho, Seoul, KR;
Jung-Wook Heo, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A magnetic secure transmission system includes an inductor, a switching circuit connected to the inductor, and a control circuit. The control circuit controls the switching circuit to adjust a level of a current in the inductor by a first amount over a data transmission period, such that the inductor emits a magnetic pulse including a first magnitude during the data transmission period. The control circuit controls the switching circuit to adjust the level of the current in the inductor such that the level of the current is increased and decreased repeatedly by a second amount between two different levels during a data non-transmission period, and the inductor emits a magnetic pulse including a second magnitude during the data non-transmission period. The second amount is less than the first amount, the first magnitude is greater than a threshold value and the second magnitude is less than the threshold value.