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. 25, 2026
Filed:
Aug. 25, 2023
Tencent Technology (Shenzhen) Company Limited, Shenzhen, CN;
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen, CN;
Abstract
A multi-channel echo cancellation method includes obtaining far-end audio signals outputted by channels, obtaining a filter coefficient matrix corresponding to a kframe of microphone signal outputted by a target microphone and including frequency domain filter coefficients of filter sub-blocks corresponding to the channels, performing frame-partitioning and block-partitioning processing on the far-end audio signals to determine a far-end frequency domain signal matrix corresponding to the kframe of microphone signal and including far-end frequency domain signals of the filter sub-blocks, performing filtering processing according to the filter coefficient matrix and the far-end frequency domain signal matrix to obtain an echo signal in the kframe of microphone signal, and performing echo cancellation according to a frequency domain signal of the kframe of microphone signal and the echo signal in the kframe of microphone signal to obtain a near-end audio signal outputted by the target microphone.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile