| 摘要 |
PROBLEM TO BE SOLVED: To solve such the problem that the number of components increases since a partition wall isolating a space for each MEMS sound pickup element is provided in order to attain an independent acoustic path in the conventional directional MEMS microphone apparatus. SOLUTION: By providing sound holes on a mounting substrate directly under the respective MEMS sound pickup elements, the MEMS sound pickup elements themselves cut off the sound on the first side (L side) and on the second side (R side) each other. Thus, an independent acoustic path is secured without providing a partition wall. COPYRIGHT: (C)2011,JPO&INPIT |
