公开(公告)号：US11375310B2

公开(公告)日：2022-06-28

申请号：US17301466

申请日：2021-04-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiwei Kou ,  Xiansheng Li ,  Xiangyu Zhao

IPC: H04R3/00 ,  H04R29/00

Abstract: The present application provides a method of audio signal processing. The method comprises obtaining a voice coil direct current resistance of a speaker. The method further comprises obtaining an audio input signal to be input into the speaker. The method further comprises determining an audio input power based on the voice coil direct current resistance and the audio input signal. The method further comprises obtaining a thermal model of the speaker, and determining a transient power threshold based on the audio input power and the thermal model. The method further comprises determining a power constraint gain based on the audio input power and the transient power threshold. The method further comprises obtaining a voice coil temperature of the speaker. The method further comprises determining a temperature constraint gain based on the voice coil temperature and an upper operating temperature limit of the speaker. The method further comprises adjusting the audio input signal based on the power constraint gain and the temperature constraint gain, to obtain a target signal.

公开(公告)号：US20220225015A1

公开(公告)日：2022-07-14

申请号：US17706487

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rongrong Wu ,  Yong Zheng ,  Guozhen Ma ,  Naotaka Tsunoda ,  Xiansheng Li

IPC: H04R1/10

Abstract: Embodiments of this application disclose a noise reduction headset. A branch pipe is disposed in the headset to connect a sound cavity inside the headset and an external environment. The branch pipe has a low-pass filter function to filter out high-band noise entering the sound cavity from the external environment, so that impact on sound quality inside the sound cavity that is caused by noise in the external environment is reduced, thereby implementing passive noise reduction.

公开(公告)号：US12114124B2

公开(公告)日：2024-10-08

申请号：US17706487

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rongrong Wu ,  Yong Zheng ,  Guozhen Ma ,  Naotaka Tsunoda ,  Xiansheng Li

IPC: H04R1/10 ,  H04R1/28 ,  H04R1/34 ,  H04R5/033 ,  H04R25/00

CPC classification number: H04R1/1083 ,  H04R1/1008 ,  H04R1/1033 ,  H04R1/105 ,  H04R1/1075 ,  H04R1/1016 ,  H04R1/2826 ,  H04R1/347 ,  H04R5/033 ,  H04R25/60 ,  H04R2205/022

Abstract: Embodiments of this application disclose a noise reduction headset. A branch pipe is disposed in the headset to connect a sound cavity inside the headset and an external environment. The branch pipe has a low-pass filter function to filter out high-band noise entering the sound cavity from the external environment, so that impact on sound quality inside the sound cavity that is caused by noise in the external environment is reduced, thereby implementing passive noise reduction.