MICROPHONE SYSTEM FOR VEHICLE

• US 20100124348A1
• Filed: 01/26/2010
• Published: 05/20/2010
• Est. Priority Date: 10/01/2002
• Status: Active Grant

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: DeBoer, Carol L., Barr, Joshua J., Lambrix, Timothy R., Bigoness, Eric P., Weller, Andrew D., Larson, Mark L., McCaw, Joseph P.
• Granted Patent: US 8,355,521 B2
• Time in Patent Office: Days
• US Class Current: 381/365
• CPC Class Codes: B60R 2001/1284 with communication systems other than radio-receivers, e.g. keyless entry systems, navigation systems; with anti-collision systems
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04R 1/083 Special constructions of mouthpieces
• CPC Class Codes: H04R 1/086 Protective screens, e.g. all weather or wind screens
• CPC Class Codes: H04R 1/38 in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones

Abstract

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.

Claims

1. An interior rearview mirror assembly for a vehicle, said mirror assembly comprising:

an accessory, wherein said accessory comprises a microphone module;

a reflective element having a mounting plate at a rearward surface thereof, said mounting plate including a first portion of a pocket for at least partially receiving said accessory therein;

a bezel, said bezel at least partially receiving said reflective element therein, said bezel including a second portion of said pocket, said first and second portions of said pocket at least partially receiving and securing said accessory therebetween when said reflective element is at least partially received in said bezel; and

wherein said second portion comprises an accessory tab extending from said bezel and said first portion comprises a platform extending from said mounting plate, and wherein said accessory tab extends in overlapping relationship with said microphone module when said reflective element is at least partially received in said bezel.