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:
Jan. 09, 2024
Applicant:
Airoha Technology Corp., Hsinchu City, TW;
Inventors:
Tsung-Han Lee, Changhua County, TW;
Chien-Chieh Wang, Hsinchu City, TW;
Assignee:
Airoha Technology Corp., Hsinchu City, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/02 (2006.01);
U.S. Cl.
CPC ...
H04R 3/02 (2013.01);
Abstract
A noise reduction (NR) system includes a finite impulse response (FIR) filter and a filter manager circuit. The FIR filter is used to perform NR upon a filter input derived from an input signal. The filter manager circuit is used to determine a configuration of a minimum phase filter according to the input signal, and update the FIR filter by the configuration of the minimum phase filter.