Donnelly Corporation

Eric P Bigoness

Mark L Larson

Andrew D Weller

Joseph P McCaw

Carol L DeBoer

Timothy R Lambrix

Joshua L Barr

A voice acquisition system for a vehicle includes a microphone having a first microphone element and a second microphone element. The system includes circuitry for processing signals output by the first and second microphone elements. The first microphone element is disposed at a first acoustic port and the second microphone element is disposed at a second acoustic port. The first acoustic port is at least partially isolated from the second acoustic port. When the microphone is normally mounted in an interior cabin of a vehicle, vocal signals emanating from an occupant of the vehicle pressurize the first microphone element at the first acoustic port ahead of pressurization by the vocal signals of the second microphone element at the second acoustic port. The voice acquisition system may include at least one of (i) discrimination of vocal signals from non-vocal signals, (ii) noise cancellation and (iii) filtering of noise.

Voice acquisition system for vehicle

A vehicle interior rearview mirror assembly comprises an accessory, a reflective element and a bezel. The mirror assembly may define portions of a pocket that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly may include a microphone and an acoustic cover positioned at least partially over one or more inlet ports of the microphone. The acoustic cover may include an outer air flow limiting layer that substantially limits air flow therethrough and a diffusing material that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier may be positioned between a pair of inlet ports of the microphone to enhance the directivity of the microphone.

Microphone system for vehicle

A vehicle interior rearview mirror assembly () comprises an accessory (), a reflective element () and a bezel (). The mirror assembly may define portions of a pocket () that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly () may include a microphone () and an acoustic cover () positioned at least partially over one or more inlet ports () of the microphone. The acoustic cover may include an outer air flow limiting layer () that substantially limit air flow therethrough and a diffusing material () that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier () may be positioned between a pair of inlet port of the microphone to enhance the directivity of the microphone.

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Kentwood, MI, United States of America

Eric P Bigoness