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:
Oct. 21, 2025

Filed:

Nov. 02, 2022
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Beng-Meng Chen, Hsinchu, TW;

Chien-Jung Huang, Hsinchu, TW;

Jhih-Yuan Ke, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 3/19 (2006.01); H03G 3/30 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H03F 1/30 (2013.01); H03F 3/19 (2013.01); H03G 3/3036 (2013.01); H04B 1/04 (2013.01); H03F 2200/447 (2013.01); H03F 2200/451 (2013.01); H03F 2200/468 (2013.01); H03G 2201/103 (2013.01); H03G 2201/307 (2013.01);
Abstract

The present invention discloses a transmission circuit having output power compensation mechanism. A base-band circuit receives and processes a digital input signal to perform conversion and amplification according to at least one gain parameter to generate an analog output signal. A frequency up-converting circuit performs frequency up-conversion on the analog output signal to generate an RF signal. A RF amplification circuit amplifies the RF signal to generate an output RF signal to an antenna. A temperature monitoring circuit monitors temperature of the RF amplification circuit to generate an instant temperature value thereof. A calibration circuit increases at least a part of the gain parameter when the instant temperature value makes a power of the RF amplification circuit decrease and decreases at least a part of the gain parameter when the instant temperature value makes the power increase.


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