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:
Dec. 03, 2019

Filed:

Aug. 21, 2018
Applicant:

Kaikutek Inc., Taipei, TW;

Inventors:

Pang-Ning Chen, Taipei, TW;

Chen-Lun Lin, Hsinchu, TW;

Ying-Chia Chen, Taoyuan, TW;

Wei-Jyun Wang, Kaohsiung, TW;

Mike Chun Hung Wang, Taipei, TW;

Assignee:

KaiKuTek INC., Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H03F 3/19 (2006.01); H03F 3/45 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
H03F 1/32 (2013.01); H03F 3/19 (2013.01); H03F 3/45475 (2013.01); H04B 1/18 (2013.01); H03F 2200/222 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45156 (2013.01); H03F 2203/45544 (2013.01); H03F 2203/45631 (2013.01);
Abstract

A method for enhancing linearity of the receiver front-end system includes receiving a radio frequency signal by an antenna, converting the radio frequency signal to first differential signals by a transformer module, adjusting frequencies of the first differential signals to generate second differential signals by a mixer module, detecting a common signal in order to reduce a common error of the second differential signals, and generating third differential signals according to a reference signal after the common error is reduced from the second differential signals. The first differential signals, the second differential signals, and the third differential signals are unbalanced.


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