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:
Aug. 18, 2015
Filed:
Sep. 13, 2012
Applicants:
Jong Pil Cho, Hwaseong-si, KR;
IL Jong Song, Yongin-si, KR;
Sang Hyo Lee, Seoul, KR;
Inventors:
Assignee:
Samsung Electronic Co., Ltd., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/08 (2006.01); G06K 19/07 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0715 (2013.01); G06K 19/0723 (2013.01);
Abstract
A contactless card includes an inductive circuit configured to send and receive signals, a rectifier circuit coupled to the inductive circuit and configured to generate a DC voltage from an AC voltage generated by the inductive circuit, a clamp circuit configured to limit the DC voltage, a regulator circuit configured to regulate the DC voltage and a control circuit configured to selectively enable and disable the clamp circuit and the regulator circuit.