公开(公告)号：US10078137B2

公开(公告)日：2018-09-18

申请号：US14311283

申请日：2014-06-21

申请人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

发明人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

IPC分类号： G01S17/89 ,  G01R31/36

CPC分类号： G01S17/89 ,  G01R31/382

摘要： A LIDAR system that can accommodate both a clear atmosphere and be adaptable to environments in which smoke, dust or other particulates (i.e., a degraded environment) exist in the atmosphere around the target is described. The system operates in two fields of regard: clear view mode (wide field of regard) and a degraded view mode (narrow field of regard). The wide field of regard allows the output laser energy to be concentrated over a large number of detector pixels and thus resulting in high scene scan rate. The narrow field of regard allows concentrating the laser output energy on fewer pixels to compensate for the loss of laser energy due to atmospheric degradation. The combination of the ROIC and LIDAR modes of operation result in a system that is capable of operation under clear and degraded environments.

公开(公告)号：US09142380B2

公开(公告)日：2015-09-22

申请号：US13338332

申请日：2011-12-28

申请人： Medhet Azzazy ,  David Ludwig ,  James Justice

发明人： Medhet Azzazy ,  David Ludwig ,  James Justice

IPC分类号： H01L27/00 ,  H01J31/26 ,  H01J31/50

CPC分类号： H01J31/26 ,  H01J31/507

摘要： A multilayer electronic imaging module and sensor system incorporating a micro-lens layer for imaging and collimating a received image from a field of regard, a photocathode layer for detecting photons from the micro-lens layer and generating an electron output, a micro-channel plate layer for receiving the output electrons emitted from the photocathode in response to the photon input and amplifying same and stacked readout circuitry for processing the electron output of the micro-channel plate. The sensor system of the invention may be provided in the form of a Cassegrain telescope assembly and includes electromagnetic imaging and scanning means and beam-splitting means for directed predetermined ranges of the received image to one or more photo-detector elements which may be in the form of the micro-channel imaging module of the invention.

摘要翻译： 一种多层电子成像模块和传感器系统，其包括用于从所考虑的领域成像和准直接收图像的微透镜层，用于从微透镜层检测光子并产生电子输出的光电阴极层，微通道板 层，用于响应于光子输入接收从光电阴极发射的输出电子，并放大用于处理微通道板的电子输出的相同和堆叠的读出电路。 本发明的传感器系统可以以卡塞格伦望远镜组件的形式提供，并且包括电磁成像和扫描装置和分束装置，用于将接收到的图像的指定预定范围定向到一个或多个光检测器元件， 形式的本发明的微通道成像模块。

公开(公告)号：US09129780B2

公开(公告)日：2015-09-08

申请号：US13338328

申请日：2011-12-28

申请人： Medhat Azzazy ,  David Ludwig ,  James Justice

发明人： Medhat Azzazy ,  David Ludwig ,  James Justice

IPC分类号： H01L27/00 ,  H01J31/48 ,  H01J29/89

CPC分类号： H01J31/48 ,  H01J29/89

摘要： A multilayer electronic imaging module and sensor system incorporating a micro-lens layer for imaging and collimating a received image from a field of regard, a photocathode layer for detecting photons from the micro-lens layer and generating an electron output, a micro-channel plate layer for receiving the output electrons emitted from the photocathode in response to the photon input and amplifying same and stacked readout circuitry for processing the electron output of the micro-channel plate. The sensor system of the invention may be provided in the form of a Cassegrain telescope assembly and includes electromagnetic imaging and scanning means and beam-splitting means for directed predetermined ranges of the received image to one or more photo-detector elements which may be in the form of the micro-channel imaging module of the invention.

摘要翻译： 一种多层电子成像模块和传感器系统，其包括用于从所考虑的领域成像和准直接收图像的微透镜层，用于从微透镜层检测光子并产生电子输出的光电阴极层，微通道板 层，用于响应于光子输入接收从光电阴极发射的输出电子，并放大用于处理微通道板的电子输出的相同和堆叠的读出电路。 本发明的传感器系统可以以卡塞格伦望远镜组件的形式提供，并且包括电磁成像和扫描装置和分束装置，用于将接收到的图像的指定预定范围定向到一个或多个光检测器元件， 形式的本发明的微通道成像模块。

公开(公告)号：US20130250273A1

公开(公告)日：2013-09-26

申请号：US13425535

申请日：2012-03-21

申请人： David Ludwig

发明人： David Ludwig

IPC分类号： G01C3/08

CPC分类号： G01S7/4863 ,  G01S7/4873 ,  G01S17/10 ,  G01S17/89

摘要： A LIDAR device and method for determining the range of a target surface using a threshold detector circuit that differentiates the laser return signal to define a differentiated signal. The signal level crossing point or threshold is representative of the peak amplitude of the return signal. The device and method compare the signal level crossing point to a predetermined threshold level to determine the range of the target surface in a LIDAR system.

摘要翻译： 一种激光雷达装置和方法，用于使用区分激光返回信号以限定微分信号的阈值检测器电路来确定目标表面的范围。 信号电平交叉点或阈值代表返回信号的峰值幅度。 该装置和方法将信号电平交叉点与预定阈值电平进行比较，以确定激光雷达系统中目标表面的范围。

公开(公告)号：US20130250272A1

公开(公告)日：2013-09-26

申请号：US13430075

申请日：2012-03-26

申请人： David Ludwig

发明人： David Ludwig

IPC分类号： G01C3/08

CPC分类号： G01S17/10 ,  G01S7/4863 ,  G01S7/4873

摘要： A LIDAR device and method for determining the range of a target surface using a threshold detector circuit that differentiates the laser return signal to define a differentiated signal. The signal level crossing point or threshold is representative of the peak amplitude of the return signal. The device and method compare the signal level crossing point to a predetermined threshold level to determine the range of the target surface in a LIDAR system.

摘要翻译： 一种激光雷达装置和方法，用于使用区分激光返回信号以限定微分信号的阈值检测器电路来确定目标表面的范围。 信号电平交叉点或阈值代表返回信号的峰值幅度。 该装置和方法将信号电平交叉点与预定阈值电平进行比较，以确定激光雷达系统中目标表面的范围。

公开(公告)号：US20120176619A1

公开(公告)日：2012-07-12

申请号：US13346907

申请日：2012-01-10

申请人： David Ludwig

发明人： David Ludwig

IPC分类号： G01J3/28

CPC分类号： G01J3/50 ,  G01J2003/466

摘要： A solid state spectrometer unit cell or plurality of cells for sensing different wavelengths of electromagnetic radiation at different depths within the substrate of the device. Variable bias voltages on one or more p-n junctions in the device are used so that the depth of the depletion regions are selectively varied. By varying the depletion region thickness of the p-n junctions in the device, the wavelengths absorbed by the semiconductor device and resultant electron-hole pairs collected by the p-n junctions are varied. In one embodiment, the outputs of each of two unit cell p-n junctions are sensed and the difference calculated and output to suitable circuitry for display as representative of a particular range or frequency of the electromagnetic spectrum.

摘要翻译： 固态光谱仪单元或多个单元，用于感测在该器件的衬底内的不同深度的不同波长的电磁辐射。 使用器件中一个或多个p-n结上的可变偏置电压，使得耗尽区的深度被选择性地变化。 通过改变器件中p-n结的耗尽区厚度，由p-n结收集的半导体器件吸收的波长和由此产生的电子 - 空穴对变化。 在一个实施例中，感测到两个单位单元p-n结中的每一个的输出，并且计算出的差值并将其输出到用于显示的合适电路，以代表电磁频谱的特定范围或频率。

公开(公告)号：US20120170029A1

公开(公告)日：2012-07-05

申请号：US13372184

申请日：2012-02-13

申请人： Medhat Azzazy ,  David Ludwig ,  James Justice

发明人： Medhat Azzazy ,  David Ludwig ,  James Justice

IPC分类号： G01C1/00

CPC分类号： H01J31/26 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/66 ,  G01S17/89 ,  H01J31/507

摘要： A sensor system is provided comprising a precision tracking sensor element and one or more acquisition sensor elements. The acquisition sensor elements may be mounted on a rotating base element that rotates about a first axis. The precision tracking sensor elements may be mounted on a hinged or pivoting element or gimbal on the housing and provided with drive means to permit a user to selectively manually or automatically direct it toward a scene target of interest detected by the acquisition sensor elements. At least one of the imaging elements in the precision tracking sensor or acquisition sensors is stacked micro-channel plate focal plane array element.

摘要翻译： 提供了一种包括精密跟踪传感器元件和一个或多个捕获传感器元件的传感器系统。 采集传感器元件可以安装在围绕第一轴线旋转的旋转的基座元件上。 精密跟踪传感器元件可以安装在壳体上的铰链或枢转元件或万向节上并且设置有驱动装置，以允许用户选择性地手动地或自动地将其引导到由采集传感器元件检测到的感兴趣的场景目标。 精密跟踪传感器或采集传感器中的成像元件中的至少一个是堆叠的微通道板焦平面阵列元件。

公开(公告)号：US08125367B2

公开(公告)日：2012-02-28

申请号：US12804267

申请日：2010-07-15

申请人： David Ludwig

发明人： David Ludwig

IPC分类号： H03M1/12

CPC分类号： G01S17/89 ,  G01S7/4913 ,  H03M1/1215

摘要： A readout circuit which may be in the form of a readout integrated circuit or ROIC is disclosed for use in an AM chirp LADAR system having a photodetector coupled to a passive electronic filter. The filter output is coupled to a capacitive-coupled transimpedance amplifier with an output coupled to an analog storage register. The analog storage register output is coupled to a sample-and-hold circuit which in turn is coupled to an analog to digital converter circuit. In the stacked configuration, each IC operates independently and outputs its signals on a unique output line. The stacked ICs operate under the same set of control vectors as the individual ICs comprising the stack.

摘要翻译： 公开了可以是读出集成电路或ROIC形式的读出电路，用于具有耦合到无源电子滤波器的光电检测器的AM啁啾LADAR系统。 滤波器输出耦合到电容耦合跨阻抗放大器，其输出耦合到模拟存储寄存器。 模拟存储寄存器输出耦合到采样保持电路，采样保持电路又耦合到模数转换器电路。 在堆叠配置中，每个IC独立运行，并在独特的输出线上输出信号。 堆叠的IC在与包括堆叠的各个IC相同的控制向量集合下操作。

公开(公告)号：US20070052947A1

公开(公告)日：2007-03-08

申请号：US10806037

申请日：2004-03-22

申请人： David Ludwig ,  John Kennedy ,  William Kleinhans ,  Tina Liu ,  Christian Krutzik

发明人： David Ludwig ,  John Kennedy ,  William Kleinhans ,  Tina Liu ,  Christian Krutzik

IPC分类号： G01C3/08

CPC分类号： G01S7/487 ,  G01S17/89

摘要： A 3-D LADAR imaging system incorporating stacked microelectronic layers is provided. A light source is imaged upon a target through beam shaping optics. Photons reflected from the target are collected and imaged upon a detector array though collection optics. The detector array signals are fed into a multilayer processing module wherein each layer includes detector signal processing circuitry. The detector array signals are amplified, compared to a user-defined threshold, digitized and fed into a high speed FIFO range bin. Dependant on the value of the digit contained in the bins in the register, and the digit's bin location, the time of a photon reflection from a target surface can be determined. A To trigger signal defines the reflection time represented by each bin location by resetting appropriate circuitry to begin processing. The bin data representing the photon reflections from the various target surfaces are read out of the FIFO and processed using appropriate circuitry to create a 3-D point cloud for creating a 3-D target image.

摘要翻译： 提供了一种包含堆叠微电子层的3-D LADAR成像系统。 光源通过光束整形光学器件成像在目标上。 从目标反射的光子被收集并通过收集光学器件在检测器阵列上成像。 检测器阵列信号被馈送到多层处理模块，其中每层包括检测器信号处理电路。 与用户定义的阈值相比，检测器阵列信号被放大，数字化并馈送到高速FIFO范围仓。 取决于包含在寄存器中的箱体中的数字值和数字仓的位置，可以确定从目标表面的光子反射的时间。 A触发信号通过重置适当的电路来开始处理，定义由每个仓位置表示的反射时间。 表示来自各种目标表面的光子反射的暗盒数据从FIFO中读出并使用适当的电路进行处理，以创建用于创建3-D目标图像的3-D点云。

公开(公告)号：US20060105302A1

公开(公告)日：2006-05-18

申请号：US10976009

申请日：2004-10-28

申请人： Vlada Breiburg ,  Sanjay Nair ,  Penny Parks ,  Tracy Ferrier ,  Jessica Reading ,  David Ludwig

发明人： Vlada Breiburg ,  Sanjay Nair ,  Penny Parks ,  Tracy Ferrier ,  Jessica Reading ,  David Ludwig

IPC分类号： G09B19/00

CPC分类号： G09B19/0053 ,  G09B5/00

摘要： During a training course, a user may select a practice session and practice using the application that is the basis of the course. A practice link is provided to the user which, when selected, launches an instance of the application. A template may also be loaded by the application that is based on the particular training session. The template may include a practice document and information relating to training content. When the practice session is initiated, a training window is displayed next to the application window that provides the user with training content for the practice session. The training content helps to guide the user through the practice session. After the user has finished practicing within the application, they may return to the point in the training course before the practice session was initiated. If desired, the user can choose to return to the practice session at any time during the training course.

摘要翻译： 在训练课程期间，用户可以选择练习会话并且使用作为课程基础的应用来练习。 向用户提供练习链接，当被选择时，启动应用的实例。 模板也可以由基于特定训练课程的应用程序加载。 模板可以包括练习文档和与训练内容相关的信息。 当练习课程开始时，在应用程序窗口旁边显示训练窗口，为应用程序窗口提供练习课程的培训内容。 培训内容有助于引导用户进行练习。 用户在应用程序中完成练习之后，可以在练习课程开始之前返回训练课程。 如果需要，用户可以选择在训练课程期间的任何时间返回练习。