Hands-free microphone with wind guard
First Claim
Patent Images
1. An airflow guard for a microphone, the airflow guard comprising:
- a shell having a mating surface, an airflow diverter and a flow separation edge, said flow separation edge being positioned downstream of the airflow diverter, and said shell being adapted for installation in a vehicle such that said mating surface is positionable adjacent a vehicle surface with the microphone being located under said shell; and
an acoustic entry port located in said shell between the flow separation edge and the mating surface and at least partially bordered by the flow separation edge to allow entry of acoustic sound into the microphone;
wherein the airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone, and wherein the flow of air separates from the flow separation edge to generate a recirculating flow downstream of the acoustic entry port to thereby reduce the level of pressure fluctuations in front of the microphone.
14 Assignments
0 Petitions
Accused Products
Abstract
An airflow guard for a microphone includes a shell having an airflow diverter and a flow separation edge. The airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone. The flow of air separates from one of the airflow diverter or the flow separation edge. An acoustic reception system for a mobile vehicle and a hands-free communication device are also disclosed.
-
Citations
13 Claims
-
1. An airflow guard for a microphone, the airflow guard comprising:
-
a shell having a mating surface, an airflow diverter and a flow separation edge, said flow separation edge being positioned downstream of the airflow diverter, and said shell being adapted for installation in a vehicle such that said mating surface is positionable adjacent a vehicle surface with the microphone being located under said shell; and an acoustic entry port located in said shell between the flow separation edge and the mating surface and at least partially bordered by the flow separation edge to allow entry of acoustic sound into the microphone; wherein the airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone, and wherein the flow of air separates from the flow separation edge to generate a recirculating flow downstream of the acoustic entry port to thereby reduce the level of pressure fluctuations in front of the microphone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An acoustic reception system for a mobile vehicle, the system comprising:
-
a microphone connected to an in-vehicle communication device; and an airflow guard for the microphone including; a shell having a mating surface, an airflow diverter and a flow separation edge, said flow separation edge being positioned downstream of the airflow diverter, and said shell being adapted for installation in a vehicle such that said mating surface is positionable adjacent a vehicle surface with the microphone being located under said shell; and an acoustic entry port located in said shell between the flow separation edge and the mating surface and at least partially bordered by the flow separation edge to allow entry of acoustic sound into the microphone; wherein the airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone, and wherein the flow of air separates from the flow separation edge to generate a recirculating flow downstream of an acoustic entry port to thereby reduce the level of pressure fluctuations in front of the microphone. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification