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. 01, 2023
Filed:
Apr. 01, 2022
Realtek Semiconductor Corporation, Hsinchu, TW;
Hsuan-Ting Ho, Hsinchu, TW;
Liang-Wei Huang, Hsinchu, TW;
Po-Han Lin, Hsinchu, TW;
Chia-Lin Chang, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
A method includes: generating a first signal according to a digital signal; filtering the first signal according to first filter coefficients of first filter to generate a second signal; adding a first reference signal with the second signal to generate a third signal; performing digital-to-analog conversion according to the first and third signals to generate and output an echo signal; performing analog-to-digital conversion according to the echo signal to generate a fourth signal; generating a fifth signal according to the digital signal and the fourth signal; and updating the first filter coefficients according to the fifth signal. Generating the fifth signal includes: generating second filter coefficients of second filter; updating the second filter coefficients according to a second reference signal and the fourth signal; obtaining a first and second representative coefficients of the second filter coefficients; and generating the fifth signal according to the first and second representative coefficients.