Title:
EARPHONE
Document Type and Number:
WIPO Patent Application WO/2023/029957
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application is an earphone. An air release pipeline is arranged in a shell, an air release hole is formed in a second shell wall on the periphery of a second cavity, and a first cavity is in communication with the external environment by means of the air release pipeline and the air release hole, such that the pressure in an ear canal can be quickly balanced, and the air release pipeline and the air release hole are prevented from being coupled to the inner wall of a cavum conchae, thereby improving the pressure release stability of the first cavity by means of the air release pipeline and the air release hole, and guaranteeing the coherence between noise received by a feedforward reference microphone and noise received by a residual noise reference microphone, such that the noise reduction effect is better.
Inventors:
LIU CUNSHUAI (CN)
ZHANG TIENAN (CN)
WANG MENG (CN)
ZHANG TIENAN (CN)
WANG MENG (CN)
Application Number:
PCT/CN2022/112382
Publication Date:
March 09, 2023
Filing Date:
August 15, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R1/10
Foreign References:
| CN216600066U | 2022-05-24 | |||
| CN207443081U | 2018-06-01 | |||
| CN111314818A | 2020-06-19 | |||
| CN208210233U | 2018-12-07 | |||
| CN106851446A | 2017-06-13 | |||
| US20180020281A1 | 2018-01-18 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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