公开(公告)号：US20130101151A1

公开(公告)日：2013-04-25

申请号：US13712325

申请日：2012-12-12

Applicant: ANALOG DEVICES, INC.

Inventor： Kieran P. Harney ,  Jason W. Weigold ,  Gary W. Elko

IPC: H04R1/04

CPC classification number: H04R1/04 ,  H04M1/0214 ,  H04M1/03 ,  H04M1/035 ,  H04M1/19 ,  H04M1/6008 ,  H04R1/245 ,  H04R3/005 ,  H04R2410/05

Abstract: A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The first microphone apparatus may have a first back-side cavity and the second microphone may have a second back-side cavity. The first and second back-side cavities may be fluidly unconnected. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.

Abstract translation: 麦克风系统具有与第一和第二麦克风装置耦合的基座。 第一麦克风装置能够产生具有噪声分量的第一输出信号，而第二麦克风装置能够产生第二输出信号。 第一麦克风装置可以具有第一后侧腔，并且第二麦克风可以具有第二后侧空腔。 第一和第二后侧空腔可以是流体不连接的。 该系统还具有与第一麦克风装置和第二麦克风装置操作耦合的组合逻辑。 组合逻辑使用第二输出信号从第一输出信号中去除噪声分量的至少一部分。