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:
May. 31, 2016
Filed:
Mar. 06, 2014
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A voltage generator of a contactless integrated circuit (IC) card includes a regulator configured to generate a first internal voltage based on an input voltage and a first reference voltage, the input voltage being received through an antenna of the contactless IC card. The voltage generator includes an internal voltage generator configured to generate a second internal voltage, the second internal voltage being used to operate an internal circuit of the contactless IC card. The voltage generator includes a reference voltage generator configured to generate a second reference voltage based on the first internal voltage, the second reference voltage being generated without regard to a fluctuation component of the first internal voltage. The voltage generator includes a switching unit configured to provide one of the first and second internal voltages as the first reference voltage in response to first and second switching control signals.