Systems and methods for minimizing vibration sensitivity for protected microphones

Abstract

Protected microphone systems may include a protective layer and one or more cavities to minimize the vibration sensitivity of a microphone of the protected microphone systems. The protective layer may be constructed of a mesh material. The mesh material may be constructed of a polyester monofilament material.

What is claimed is: 
     
         1 . An image capture device comprising:
 a housing that includes a port that is fluidly connected to an external environment relative to the image capture device;   an audio capture device configured to obtain a sound; and   a protective layer directly coupled to an internal portion of the housing adjacent to the port.   
     
     
         2 . The image capture device of  claim 1 , wherein the protective layer is a membrane. 
     
     
         3 . The image capture device of  claim 2 , wherein the membrane comprises silicone or polytetrafluoroethylene (PTFE). 
     
     
         4 . The image capture device of  claim 1 , wherein the protective layer is a mesh. 
     
     
         5 . The image capture device of  claim 1 , wherein the protective layer is coupled to the internal portion of the housing via a support structure. 
     
     
         6 . The image capture device of  claim 5 , wherein the support structure is an adhesive. 
     
     
         7 . The image capture device of  claim 5 , wherein an active area of the protective layer, a portion of the housing, and a portion of the support structure form a cavity. 
     
     
         8 . An audio capture device comprising:
 a housing that includes a first port fluidly connected to an external environment relative to the image capture device and a second port spaced from and fluidly connected to the first port;   a protective layer disposed between the first port and the second port, wherein the protective layer is directly coupled to an internal portion of the housing adjacent to the first port;   a circuit board comprising a microphone configured to obtain a sound via the second port;   a first cavity that extends between the first port and a first surface of the protective layer; and   a second cavity that extends between a second surface of the protective layer, the second port, and the microphone.   
     
     
         9 . The audio capture device of  claim 8 , wherein the protective layer is coupled to the internal portion of the housing via a support structure. 
     
     
         10 . The audio capture device of  claim 8 , wherein the support structure is an adhesive. 
     
     
         11 . The audio capture device of any one of  claim 8 , wherein the protective layer is a mesh. 
     
     
         12 . The audio capture device of  claim 8 , wherein the mesh comprises a polyester monofilament material. 
     
     
         13 . The audio capture device of  claim 8 , wherein a volume of the second cavity is larger than a volume of the first cavity. 
     
     
         14 . The audio capture device of  claim 8 , wherein the protective layer includes an active area and a non-active area. 
     
     
         15 . An image capture system comprising:
 a housing that includes a port that is fluidly connected to an external environment relative to the image capture device;   a printed circuit board (PCB) disposed in the housing;   an audio capture device coupled to the PCB configured to obtain a sound; and   a protective layer directly coupled to an internal portion of the housing adjacent to the port.   
     
     
         16 . The image capture system of  claim 15 , wherein the protective layer is a mesh. 
     
     
         17 . The image capture device of  claim 15 , wherein the mesh comprises a polyester monofilament material. 
     
     
         18 . The image capture device of  claim 15 , wherein the protective layer is a membrane that comprises silicone or polytetrafluoroethylene (PTFE). 
     
     
         19 . The image capture system of  claim 15 , wherein an adhesive layer is configured to attach the protective layer to the internal portion of the housing. 
     
     
         20 . The image capture system of  claim 15 , wherein the protective layer includes an active area and a non-active area.