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. 15, 2022
Filed:
Aug. 04, 2020
Applicant:
Realtek Semiconductor Corporation, Hsinchu, TW;
Inventors:
Assignee:
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 5/00 (2006.01); H04B 1/10 (2006.01); H03H 11/12 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03H 11/12 (2013.01); H03F 3/45475 (2013.01); H03F 2200/129 (2013.01); H03F 2203/45116 (2013.01); H03F 2203/45526 (2013.01);
Abstract
A filter includes multiple filter circuits. The filter circuits are coupled in series between an input terminal and an output terminal, to generate an output signal according to an input signal. One of the filter circuits operates as an active filter circuit or a passive filter circuit according to amplitude of the input signal.