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:
Jan. 20, 2026
Filed:
May. 09, 2023
Nokia Technologies Oy, Espoo, FI;
Carl Nuzman, Murray Hill, NJ (US);
Wouter Lanneer, Antwerp, BE;
NOKIA TECHNOLOGIES OY, Espoo, FI;
Abstract
Examples of the disclosure relate to acoustic echo cancellation using adaptive filtering modules. An apparatus for acoustic echo cancellation is configured to process a first input signal using a first acoustic echo cancellation module to obtain a first prediction signal and to process a second input signal using a second acoustic echo cancellation module to obtain a second prediction signal. The first input signal is based on a loudspeaker signal and the second input signal is a delayed first input signal. The prediction signals are processed to obtain a predicted echo signal. The predicted echo signal is applied to a received microphone signal to reduce echo from loudspeaker playback in the received microphone signal. The acoustic echo cancellation modules can be adapted using an adaptive filtering module.