Microphone system for vehicle
US8355521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Nov 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.