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:
Jul. 21, 2020
Applicant:
Realtek Semiconductor Corporation, Hsinchu, TW;
Inventors:
Tse-En Lin, Hsinchu, TW;
Chung-Shih Chu, Hsinchu, TW;
Wei-Chung Ting, Hsinchu, TW;
Tien-Chiu Hung, Hsinchu, TW;
Assignee:
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); G01R 27/16 (2006.01);
U.S. Cl.
CPC ...
H04R 3/007 (2013.01); G01R 27/16 (2013.01);
Abstract
A method for calculating excursion of a diaphragm of a speaker, which includes: calculating a DC resistance based on a feedback signal of the speaker; calculating an impedance based on the feedback signal and the DC resistance; calculating a transfer function between a signal and a velocity of the diaphragm of the speaker based on the DC resistance, the impedance, and a force factor; and calculating the excursion of the diaphragm of the speaker based on an input signal and the transfer function.