| 发明名称 |
Microphone With Electronic Noise Filter |
| 摘要 |
An acoustic apparatus includes a microelectromechanical system (MEMS) device, a controlled filter coupled to the MEMS device, and an amplifier. The controllable filter and the amplifier are coupled together at a node. A cut-off frequency of the filter is selectable based upon reception or non-reception of a low frequency audio signal by the acoustic apparatus. |
| 申请公布号 |
US2016133271(A1) |
申请公布日期 |
2016.05.12 |
| 申请号 |
US201514926703 |
申请日期 |
2015.10.29 |
| 申请人 |
Knowles Electronic, LLC |
发明人 |
Kuntzman Michael |
| 分类号 |
G10L21/0232;H03F3/183;H04R3/06;H04R19/00;H04R19/04 |
主分类号 |
G10L21/0232 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An acoustic apparatus, comprising:
a microelectromechanical system (MEMS) device; a controlled filter coupled to the MEMS device; an amplifier; wherein the controllable filter and the amplifier are coupled together at a node; wherein a cut-off frequency of the filter is selectable based upon reception or non-reception of a low frequency audio signal by the acoustic apparatus. |
| 地址 |
Itasca IL US |
