Electrical audio signal processing systems and devices – Vehicle
Reexamination Certificate
2006-10-09
2008-10-28
Mei, Xu (Department: 2615)
Electrical audio signal processing systems and devices
Vehicle
C381S091000, C381S092000, C381S122000
Reexamination Certificate
active
07443988
ABSTRACT:
A microphone 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. The microphone transducers can advantageously include multiple transducers, which with the circuit produce a desired sensitivity pattern. The microphone can be employed in a vehicle accessory.
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Mei Xu
Price Heneveld Cooper Dewitt & Litton LLP
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