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. 20, 2021
Filed:
Mar. 23, 2020
Realtek Semiconductor Corp., HsinChu, TW;
Chun-Ming Cho, Hsinchu, TW;
Wei-Hung He, Hsinchu, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
The present invention provides an audio adjustment method and associated audio adjustment device for active noise cancellation. The audio adjustment method includes: broadcasting a single tone having a frequency f; generating M sets of filtering coefficients regarding the frequency f, wherein each set of filtering coefficients within the M sets of filtering coefficients includes a combination of an amplitude and a phase, and the M sets of filtering coefficients are different from one another; determining an mset of filtering coefficients from the M sets of filtering coefficients to minimize energy corresponding to the frequency f; and adjusting the single tone with the mset of filtering coefficients to obtain an adjusted single tone corresponding to the frequency f.