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:
Apr. 09, 2024
Filed:
Mar. 08, 2022
Applicant:
Airoha Technology Corp., Hsinchu, TW;
Inventors:
Chao-Ling Hsu, Hsinchu, TW;
Li-Wen Chi, Hsinchu, TW;
Assignee:
Airoha Technology Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10K 11/178 (2006.01); H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
G10K 11/17881 (2018.01); G10K 11/17854 (2018.01); H04R 1/1083 (2013.01); G10K 2210/1081 (2013.01);
Abstract
The invention relates to an adaptive active noise cancellation apparatus and an audio playback system using the same. The adaptive active noise cancellation apparatus shapes an error signal and a noise signal according to a shape of an ideal noise. After that, the shaped noise signal and the shaped error signal are sent into a parameter adjusting unit to perform an adaptive parameter adjustment. Thus, the adaptive noise filter unit is not only can adaptively suppress noise and minimize the error signal, but also can suppress specific frequencies that are sensitive to the human ear.