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:
Mar. 17, 2026
Filed:
Dec. 13, 2023
Realtek Semiconductor Corp., HsinChu, TW;
Tzung-Ling Tsai, HsinChu, TW;
Chih-Lung Chen, HsinChu, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
A multi-gain stage circuit is arranged to receive an input signal to generate an output signal, and includes a first gain stage, a second gain stage, a gain control circuit, and a calibration circuit. The second gain stage is connected in series with the first gain stage, and the second gain stage generates the output signal. The gain control circuit controls the first gain stage to have a first gain value such that the output signal is regarded as a product of a gain value of the second gain stage and an offset voltage of the second gain stage. The calibration circuit calculates the offset voltage of the second gain stage according to the output signal, and calibrates the second gain stage according to the offset voltage of the second gain stage calculated by the calibration circuit.