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. 25, 2020
Filed:
Dec. 25, 2017
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventor:
Tai-You Lu, Hsinchu County, TW;
Assignee:
MediaTek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/03 (2006.01); H03H 1/02 (2006.01); H03H 11/12 (2006.01); H03H 21/00 (2006.01); H03H 11/04 (2006.01); H04L 12/873 (2013.01);
U.S. Cl.
CPC ...
H04L 25/03993 (2013.01); H03H 1/02 (2013.01); H03H 11/0461 (2013.01); H03H 11/1213 (2013.01); H03H 21/00 (2013.01); H04L 25/03847 (2013.01); H04L 47/522 (2013.01); G10K 2210/108 (2013.01); H03H 11/1269 (2013.01); H04L 25/03057 (2013.01);
Abstract
A filtering device includes a low-pass filter (LPF), a noise estimation circuit and a first combining circuit. The LPF receives and filters a pre-filtering signal to generate an output signal of the filtering device. The noise estimation circuit estimates an estimated noise signal according to the output signal and the pre-filtering signal. The first combining circuit subtracts the estimated noise signal from an input signal of the filtering device to generate the pre-filtering signal.