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Patent Searching and Data


Title:
HEADSET
Document Type and Number:
WIPO Patent Application WO/2021/057891
Kind Code:
A1
Abstract:
Disclosed in the embodiment of the present application is a noise-cancelling headset. A branch tube is disposed in the headset to enable a sound cavity inside the headset to be in communication with the external environment. The branch tube has the function of low-pass filtering to filter out the high-frequency noise entering the sound cavity from the external environment, thereby reducing the impact of the noise from the external environment on the sound quality inside the sound cavity, so as to achieve the effect of passive noise reduction.

Inventors:
WU RONGRONG (CN)
ZHENG YONG (CN)
MA GUOZHEN (CN)
TSUNODA NAOTAKA (CN)
LI XIANSHENG (CN)
Application Number:
PCT/CN2020/117680
Publication Date:
April 01, 2021
Filing Date:
September 25, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R1/10; G10K11/172
Domestic Patent References:
WO2012114644A12012-08-30
Foreign References:
CN108605178A2018-09-28
CN108429960A2018-08-21
CN108429959A2018-08-21
CN110100454A2019-08-06
CN105992092A2016-10-05
CN201910939699A2019-09-27
Other References:
See also references of EP 4030778A4
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