Title:
AIR PARTICLE FILTER USED IN MICROPHONE
Document Type and Number:
WIPO Patent Application WO/2018/148871
Kind Code:
A1
Abstract:
An air particle filter used in a microphone (20) and a microphone (20) are provided. The air particle filter includes: a conductive mesh (210); and a charged insulating electret film (211) coated on a surface of the conductive mesh (210). The microphone (20) includes: a main body of the microphone (20); and an air particle filter attached with the main body over a port (206) of the microphone (20), wherein the air particle filter includes a conductive mesh (210) and a charged insulating electret film (211) coated on a surface of the conductive mesh (210), and wherein the charged insulating electret film (211) is attached with the port (206) of the microphone (20). With the air particle filter, protection against particle contamination is provided to the microphone (20), and reliability of the microphone (20) may be improved.
Inventors:
MICHEL ALAN DEAN (CN)
LV GUANGYUE (CN)
LV GUANGYUE (CN)
Application Number:
PCT/CN2017/073548
Publication Date:
August 23, 2018
Filing Date:
February 15, 2017
Export Citation:
Assignee:
HARMAN INT IND (US)
MICHEL ALAN DEAN (CN)
LV GUANGYUE (CN)
MICHEL ALAN DEAN (CN)
LV GUANGYUE (CN)
International Classes:
H04R1/04
Foreign References:
| US20160345084A1 | 2016-11-24 | |||
| US20130047846A1 | 2013-02-28 | |||
| US20160112809A1 | 2016-04-21 | |||
| US20160127837A1 | 2016-05-05 | |||
| US20130129136A1 | 2013-05-23 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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