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:
Sep. 09, 2025

Filed:

Sep. 06, 2023
Applicant:

Realtek Semiconductor Corp., HsinChu, TW;

Inventors:

Yi-Ching Wu, HsinChu, TW;

Chia-Jun Chang, HsinChu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01); H03K 17/56 (2006.01);
U.S. Cl.
CPC ...
H03K 5/00006 (2013.01); H03K 17/56 (2013.01);
Abstract

A frequency mixing circuit includes: a first transistor and a second transistor. The first transistor has a control terminal, a first terminal and a second terminal. The control terminal of the first transistor is configured to receive an oscillation signal, the first terminal of the first transistor is configured to output a mixed signal, and the second terminal of the first transistor is configured to receive a source signal. The second transistor has a control terminal, a first terminal and a second terminal. The control terminal of the second transistor is coupled to the second terminal of the first transistor, the first terminal of the second transistor is coupled to the first terminal of the first transistor, and the second terminal of the second transistor is coupled to the control terminal of the first transistor.


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