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:
Jul. 21, 2020

Filed:

Nov. 07, 2018
Applicant:

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

Inventor:

Kihwan Seong, Hwaseong-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01); G11C 29/50 (2006.01); G11C 29/02 (2006.01);
U.S. Cl.
CPC ...
G11C 7/1048 (2013.01); G11C 29/022 (2013.01); G11C 29/028 (2013.01); G11C 29/50008 (2013.01); G11C 2207/2254 (2013.01);
Abstract

A calibration device includes a first comparator that outputs a first result of comparing a level of a first voltage of a first node and a level of a reference voltage, a second comparator that outputs a second result of comparing the level of the first voltage and a level of a second voltage of a second node, and a control signal generator that outputs a first signal for adjusting a first resistance value of a first resistor circuit based on the first result and to output a second signal for adjusting a second resistance value of a second resistor circuit based on the second result. The first node is between the first resistor circuit and a reference resistor, and the second node is between the second resistor circuit and a third resistor circuit which is adjusted to have the same resistance value as the first resistance value.


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