公开(公告)号：US20100189291A1

公开(公告)日：2010-07-29

申请号：US12567325

申请日：2009-09-25

申请人： Abraham Aharoni ,  Mordechai Segev ,  Zvi Katz

发明人： Abraham Aharoni ,  Mordechai Segev ,  Zvi Katz

IPC分类号： H04R25/00

CPC分类号： H04R23/008 ,  H04R25/405

摘要： An optical pin-point microphone has a light source for directing a sensing beam to an object of interest so as to be reflected thereby as a reflected signal beam, a detector having multiple detector elements for receiving the reflected signal beam, and a summer for receiving signals from at least two of the detector elements and detecting, rectifying, amplifying and summing the received signals to generate a non-vanishing signal representative of an acoustic signal.

摘要翻译： 光学针尖麦克风具有用于将感测光束引导到感兴趣物体的光源，以便作为反射信号光束反射，具有用于接收反射信号光束的多个检测器元件的检测器和用于接收的加热器 来自至少两个检测器元件的信号，并且检测，整流，放大和求和接收的信号以产生表示声信号的非消失信号。

公开(公告)号：US09277330B2

公开(公告)日：2016-03-01

申请号：US12567325

申请日：2009-09-25

申请人： Abraham Aharoni ,  Mordechai Segev ,  Zvi Katz

发明人： Abraham Aharoni ,  Mordechai Segev ,  Zvi Katz

IPC分类号： H04R23/00 ,  H04R25/00

CPC分类号： H04R23/008 ,  H04R25/405

摘要： A system and method for directional sound sensing directs an optical sensing beam to an object of interest having a rough surface that vibrates acoustically. The light is reflected thereby and scattered as a speckle pattern that includes multiple speckles having a random distribution of phase offsets. A detector array having multiple detector elements receives and detects the speckle pattern and produces signals that are linearly proportional to phase modulation of the speckles. A summer receives signals from at least two of the detector elements that are offset at different phases and sums the received signals to generate a non-vanishing signal representative of an acoustic signal.

摘要翻译： 用于定向声音感测的系统和方法将光学感测光束引导到具有声学振动的粗糙表面的感兴趣对象。 光被反射并散射为散斑图案，其包括具有相位偏移的随机分布的多个斑点。 具有多个检测器元件的检测器阵列接收并检测斑点图案并产生与斑点相位调制成线性比例的信号。 夏天从不同相位偏移的至少两个检测器元件接收信号，并且对接收到的信号求和以产生表示声信号的非消失信号。