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:
Aug. 08, 2023
Filed:
Nov. 15, 2021
Applicant:
Realtek Semiconductor Corporation, Hsinchu, TW;
Inventors:
Wei-Cheng Tang, Hsinchu, TW;
Chia-Ling Chang, Hsinchu, TW;
Assignee:
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H03H 7/01 (2006.01); H03K 19/20 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
H04R 3/00 (2013.01); H03H 7/0153 (2013.01); H03K 3/037 (2013.01); H03K 19/20 (2013.01);
Abstract
A signal processing circuit includes an input buffer circuit and a direct-(DC) voltage detector circuit. The input buffer circuit is coupled to a pin. The pin is configured to receive an input signal. The DC voltage detector circuit is coupled to the pin and the input buffer circuit. The DC voltage detector circuit is configured to detect the input signal to generate a mode signal and generate a bias of the input buffer circuit according to the mode signal.