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:
Jun. 26, 2018

Filed:

May. 23, 2017
Applicant:

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

Inventors:

Quochoang Duong, Seoul, KR;

Yus Ko, Yongin-si, KR;

Jeongwoon Kong, Seoul, KR;

Hyunseok Shin, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03G 3/30 (2006.01); H03G 1/00 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3089 (2013.01); H03F 3/45475 (2013.01); H03F 3/45 (2013.01); H03F 3/45071 (2013.01); H03F 3/45183 (2013.01); H03F 2203/45022 (2013.01); H03F 2203/45116 (2013.01); H03G 1/0023 (2013.01); H03G 1/0088 (2013.01);
Abstract

The inventive concepts relate to variable gain amplifiers. The variable gain amplifier including an amplifier, a first fixed resistor and a first variable resistor, a second fixed resistor and a second variable resistor, a third fixed resistor and a third variable resistor, a fourth fixed resistor and a fourth variable resistor, a first output terminal and a second output terminal, and a decoder may be provided. The decoder is configured to receive first control bits, generate second control bits from the first control bits, generate third and fourth control bits from the first or second control bits, respectively, transmit the first control bits and the third control bits to the third and fourth variable resistors to adjust resistance values, and transmit the second and fourth control bits to first and second variable resistors to adjust resistance values.


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