Patent ID: 9426553
Filing Date: 2016-08-23
CPC Classification: B60R,H04M,H04R

Claim Text:
1. A microphone array arrangement structure in a vehicle cabin, comprising a plurality of microphones, wherein the plurality of microphones are all provided within a single housing and arranged in a convexly curved line, the plurality of microphones including: a first microphone, an axial direction of the first microphone facing a mouth of a driver seated in a driver seat of the vehicle cabin; a second microphone, an axial direction of the second microphone facing a mouth of an assistant seated in a passenger seat of the vehicle cabin; and a cover housing the plurality of microphones and having a plurality of holes formed in a front surface of the cover, the front surface of the cover formed in the convexly curved line, and each of the plurality of microphones is mounted on a substrate which is secured directly to an inner side of the front surface of the cover at a location corresponding to one of the plurality of holes, wherein the plurality of holes includes a set of holes that are bilaterally symmetrical about a center line of the vehicle cabin, the axial direction of the first microphone faces the mouth of the driver via one of the laterally symmetrical set of holes, and the axial direction of the second microphone faces the mouth of the assistant via another one of the laterally symmetrical set of holes, and the microphone array further comprising a plurality of seals provided between the plurality of microphones and the plurality of holes, one of the plurality of seals corresponding to one of the plurality of holes and preventing entry of sound from other than the one hole into a single microphone among the plurality of microphones.