US 12,244,986 B2
Waterproof microphone assembly with wind noise filter
Jesper Rye Bønnelykke, Valby (DK); Dennis Normann Andersen, Ølstykke (DK); and Morten Berg Arnoldus, Federiksberg C (DK)
Assigned to INVISIO A/S, Hvidove (DK)
Appl. No. 17/609,215
Filed by INVISIO A/S, Hvidovre (DK)
PCT Filed Apr. 30, 2020, PCT No. PCT/EP2020/062099
§ 371(c)(1), (2) Date Nov. 5, 2021,
PCT Pub. No. WO2020/225115, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. PA201970297 (DK), filed on May 9, 2019.
Prior Publication US 2022/0217459 A1, Jul. 7, 2022
Int. Cl. H04R 1/08 (2006.01); H04R 1/10 (2006.01)
CPC H04R 1/086 (2013.01) [H04R 1/1075 (2013.01); H04R 2410/07 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A waterproof microphone assembly comprising:
a waterproof acoustic transducer configured to convert impinging sound energy into an electrical microphone signal;
a wind noise filter configured to suppress ambient noise and comprising a first side and a second side, wherein the wind noise filter comprises a through-going or partially through-going channel located between and connecting the first side and the second side; and
a housing comprising a cavity having a distal end and a proximal end, wherein the distal end of the cavity is acoustically connected with the acoustic transducer and the proximal end of the cavity is adjacent to and/or comprises a part of the first side of the wind noise filter; and
wherein the wind noise filter is configured to absorb a liquid from at least the through-going or partially through-going channel, the liquid being water, and wherein the wind noise filter is made from a material that includes a porous foam.