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:
Dec. 23, 2025
Filed:
May. 17, 2022
Apple Inc., Cupertino, CA (US);
Qing Yang, Saratoga, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A method performed by a media source device that has several microphones, the method includes receiving an input audio signal, providing the input audio signal to a media playback device that is communicatively coupled to a speaker, receiving, from the microphones, microphone signals that include the ambient sounds within an ambient environment in which the media source device is located and at least one sound of the input audio signal produced by the speaker, producing, using a machine learning (ML) model that has input based on the microphone signals and the input audio signal, an echo reference microphone signal that includes the at least one sound produced by the speaker, and producing an echo cancelled output audio signal by performing echo cancellation upon each of the microphone signals using the input audio signal and the echo reference microphone signal as reference signals.