公开(公告)号：US07260236B2

公开(公告)日：2007-08-21

申请号：US10042860

申请日：2002-01-09

申请人： Dion Ivo De Roo ,  Aart van Halteren ,  Bastiaan Broekhuijsen

发明人： Dion Ivo De Roo ,  Aart van Halteren ,  Bastiaan Broekhuijsen

IPC分类号： H04R9/08

CPC分类号： H04R1/38 ,  H04R1/086 ,  H04R25/00 ,  H04R2410/07

摘要： A directional microphone includes a housing, a diaphragm dividing the housing into a front volume and a back volume, electronics for detecting signals corresponding to movements of the diaphragm, and front and back inlets for the front and back volumes, respectively. To obtain additional low frequency roll-off in the directional microphone, the directional microphone includes an elongated acoustical conduit connecting the front volume and the back volume. The acoustical conduit may be external or internal to the housing.

摘要翻译： 定向麦克风包括壳体，将壳体分成前部体积和后部体积的隔膜，用于分别检测与隔膜的运动相对应的信号的电子设备以及用于前部和后部体积的前部和后部入口。 为了在定向麦克风中获得额外的低频滚降，定向麦克风包括连接前部音量和后部音量的细长声学导管。 声导管可以在壳体的外部或内部。

公开(公告)号：US20070019835A1

公开(公告)日：2007-01-25

申请号：US11528802

申请日：2006-09-28

申请人： Dion Ivo de Roo ,  Aart van Halteren ,  Bastiaan Broekhuijsen

发明人： Dion Ivo de Roo ,  Aart van Halteren ,  Bastiaan Broekhuijsen

IPC分类号： H04R9/08 ,  H04R19/04 ,  H04R11/04 ,  H04R17/02 ,  H04R21/02

CPC分类号： H04R1/38 ,  H04R1/086 ,  H04R25/00 ,  H04R2410/07

摘要： A directional microphone includes a housing, a diaphragm dividing the housing into a front volume and a back volume, electronics for detecting signals corresponding to movements of the diaphragm, and front and back inlets for the front and back volumes, respectively. To obtain additional low frequency roll-off in the directional microphone, the directional microphone includes an elongated acoustical conduit connecting the front volume and the back volume. The acoustical conduit may be external or internal to the housing.