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.

Date of Patent:
Feb. 18, 2020

Filed:

Feb. 14, 2017
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Inventors:

Hyuck-Jun Cho, Hwaseong-si, KR;

Donald Na, Hwasung, KR;

Seung-Hwan Baek, Anyang-si, KR;

Jae-Keun Oh, Seoul, KR;

Kee-Moon Chun, Seongnam-si, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/26 (2006.01); G06F 1/32 (2019.01); G06K 7/00 (2006.01); G06Q 20/34 (2012.01); G06F 1/06 (2006.01); G06K 19/07 (2006.01); G06F 1/3287 (2019.01); G06F 1/00 (2006.01);
U.S. Cl.
CPC ...
G06K 7/0021 (2013.01); G06F 1/00 (2013.01); G06F 1/06 (2013.01); G06F 1/3287 (2013.01); G06K 19/07 (2013.01); G06K 19/0701 (2013.01); G06K 19/0715 (2013.01); G06Q 20/341 (2013.01);
Abstract

A smart card may include data storage and transmission circuitry, a plurality of voltage controllers to supply operational power to card circuitry, a plurality of oscillators to supply an internal clock for the card, and power management circuitry. The power management circuitry may be configured to shut down the oscillators and at least one, but not all, voltage controllers during a period after a data transmission is completed.


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