Vehicle accessory microphone
AssigneeGentex Corporation
InventorsAlan R. Watson, Robert C. Knapp, Robert R. Turnbull, William R. Spence, G. Bruce Poe, Michael A. Bryson
Life of this patent
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Abstract
A microphone assembly includes one or more transducers positioned in a housing. Circuitry is coupled to the transducer for outputting an electrical signal such that the microphone has a main lobe directed forwardly and attenuates signals originating from the sides and/or rear. The transducers can advantageously include multiple transducers, which, with the circuit, produce a desired sensitivity pattern. The microphone assembly can be employed in a vehicle accessory.
Claims48
A rearview mirror assembly for a vehicle, comprising:
- a mirror subassembly including a mirror housing and adapted to be attached to the vehicle;
- a mirror mounted in said mirror housing;
- a first microphone housing having at least one acoustic port and associated with said mirror subassembly;
- a first transducer disposed in said first microphone housing and acoustically coupled to said acoustic port of said first microphone housing;
- a first windscreen disposed across said acoustic port of said first microphone housing;
- a second microphone housing having at least one acoustic port and associated with said mirror subassembly;
- a second transducer disposed in said second microphone housing and acoustically coupled to said acoustic port of said second microphone housing;
- and
- a second windscreen disposed across said acoustic port of said second microphone housing.
An accessory for a vehicle, comprising:
- an accessory housing adapted for mounting to the vehicle;
- a first microphone housing having at least one acoustic port and mounted on said accessory housing;
- a first transducer disposed in said first microphone housing and acoustically coupled to said acoustic port of said first microphone housing;
- a first windscreen disposed across said acoustic port of said first microphone housing;
- a second microphone housing having at least one acoustic port and mounted on said accessory housing;
- a second transducer disposed in said second microphone housing and acoustically coupled to said acoustic port of said second microphone housing;
- and
- a second windscreen disposed across said acoustic port of said second microphone housing.
A microphone assembly comprising:
- a first housing having at least one acoustic port;
- a first transducer disposed in said first housing and acoustically coupled to said acoustic port of said first housing;
- a first windscreen disposed across said acoustic port of said first housing;
- a second housing having at least one acoustic port;
- a second transducer disposed in said second housing and acoustically coupled to said acoustic port of said second housing;
- and
- a second windscreen disposed across said acoustic port of said second housing.
Dependencies are inferred from the claim text.