公开(公告)号：US20230377554A1

公开(公告)日：2023-11-23

申请号：US17746930

申请日：2022-05-17

Applicant: Apple Inc.

Inventor： Yang LU ,  Andrew P. BRIGHT ,  Fatos MYFTARI ,  Vasu IYENGAR

IPC: G10K11/178

CPC classification number: G10K11/17853

Abstract: Aspects of the subject technology provide for generation of a self-voice signal by an electronic device that is operating in an active noise cancellation mode. In this way, during a phone call, a video conference, or while listening to audio content, a user of the electronic device may benefit from active cancellation of ambient noise while still being able to hear their own voice when they speak. In various implementations described herein, the concurrent self-voice and automatic noise cancellation features are facilitated by accelerometer-based control of sidetone and/or active noise cancellation operations.

公开(公告)号：US20240144906A1

公开(公告)日：2024-05-02

申请号：US18409693

申请日：2024-01-10

Applicant: Apple Inc.

Inventor： Yang LU ,  Andrew P. BRIGHT ,  Fatos MYFTARI ,  Vasu IYENGAR

IPC: G10K11/178

CPC classification number: G10K11/17853

Abstract: Aspects of the subject technology provide for generation of a self-voice signal by an electronic device that is operating in an active noise cancellation mode. In this way, during a phone call, a video conference, or while listening to audio content, a user of the electronic device may benefit from active cancellation of ambient noise while still being able to hear their own voice when they speak. In various implementations described herein, the concurrent self-voice and automatic noise cancellation features are facilitated by accelerometer-based control of sidetone and/or active noise cancellation operations.

公开(公告)号：US20230379624A1

公开(公告)日：2023-11-23

申请号：US17750271

申请日：2022-05-20

Applicant: Apple Inc.

Inventor： Thomas M. JENSEN ,  Andrew P. BRIGHT ,  Ariel A. MASSIAS ,  Ethan R. DUNI ,  Hannes BREITSCHAEDEL ,  Max RASMUSSEN

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R3/007 ,  H04R29/001

Abstract: Aspects of the subject technology relate to electronic devices having speakers. An electronic device may include speaker control circuitry for a speaker. The speaker control circuitry may include multiple parallel prediction blocks that share a single look-ahead delay, and that feed, in parallel, a single controller. The single controller can generate a joint modification to an audio signal based on the parallel outputs of the prediction blocks. The joint modification can then be applied to the audio signal to generate a speaker-protection audio signal that can be output by the speaker. The speaker control circuitry may also include a system modeler that models the speaker system of the electronic device based on feedback measured physical characteristics. In this way, a reduced control safety margin can be achieved by more accurate model predictors, which can allow the controller to safely drive the speaker system to its full capability.