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.