Silicon microphone assembly capable of realizing sound source direction |
Title： |
| Silicon microphone assembly capable of realizing sound source direction |
|
Application Number： |
200410098803 |
Application Date： |
2004/12/17 |
Announcement Date： |
2005/06/22 |
Pub. Date： |
|
Publication Number： |
1630428 |
Announcement Number： |
|
Grant Date： |
|
Granted Pub. Date： |
|
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04R 1/40 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Wu Xiaoming, Ren Tianling, Liu Litian |
Key Words： |
Silicon, microphone assembly, sound source direction |
Abstract： |
A silicon microphone assembly capable of realizing sound source direction is charactered in that: it contains a hexahedron stent, three heart-shaped directional silicon microphones and a full directional silicon microphone. The said three heart-shaped directional silicon microphones is along the direction perpendicular to the cartesian coordinates whose original point locates in the center of the hexahedron stent, and they are fixed on the front, side and top stent of the hexahedron stent; the full directional silicon microphone is fixed on the bottom stent of the said hexahedron stent stent; and the fifth surface of the hexahedron stent is to install a PCB interface board for the signal output of the micro-silicon microphone assembly, and the last surface is mounted with a dustproof membrane. The said silicon microphone assembly is proved has a very good orientation of the sound source by a simulation test, namely the direction of the sound source is in good agreement with the actual direction, and the higher the sampling frequency of the sound, the better the agreement. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
