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.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Jun. 02, 2022
Realtek Semiconductor Corporation, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
An analog front-end device includes an amplifier circuit, a first gain control circuit, and a tracking circuit. The amplifier circuit is configured to generate a first output signal according to a first input signal. The first gain control circuit is configured to set a first electronic component according to a first gain control signal and transmit the first input signal to a first input terminal of the amplifier circuit via the first electronic component, in which a terminal of the first electronic component is selectively coupled to the first input terminal or a first predetermined node. The tracking circuit is configured to adjust a level of the first predetermined node according to a level of the first input terminal, in order to reduce a voltage difference between the first input terminal and the first predetermined node.