A microphone assembly includes at 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. The microphone transducers can advantageously...http://www.google.fr/patents/US7120261?utm_source=gb-gplus-shareBrevet US7120261 - Vehicle accessory microphone
