公开(公告)号：US20100042362A1

公开(公告)日：2010-02-18

申请号：US12604846

申请日：2009-10-23

申请人： Marc Levesque ,  Francois Babin ,  Daniel Cantin

发明人： Marc Levesque ,  Francois Babin ,  Daniel Cantin

IPC分类号： G01B11/14 ,  G06F15/00

CPC分类号： G01S7/484 ,  G01S7/4868 ,  G01S7/487 ,  G01S17/10

摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.

摘要翻译： 减少响应时间的方法和装置以及随着光学测距仪测距的可能性的增加，数字化从从不同类型的物体返回的脉冲回波获得的信号波形，脉冲回波太弱，不能从 在捕获脉冲回波期间，单个波形或物体可能运动。 在本发明的第一实施例中，通过使用信号平均处理来减少数字光学测距仪近距离处的响应时间，其中要平均的数据数量根据预定功能的距离而变化。 在本发明的第二实施例中，沿着数字光学测距仪的视线测量对象的运动概率增加，并且通过在平均之前执行每个获取的信号波形的范围偏移来测量对象速度。 在本发明的第三实施例中，在数字光学测距仪的视线中获取的信号波形在预定的区域上被扫描，并且移动和平均的范围，以允许早期检测和进入该区域的物体的测距。

公开(公告)号：US20090119044A1

公开(公告)日：2009-05-07

申请号：US11936502

申请日：2007-11-07

申请人： Marc Levesque ,  Francois Babin ,  Daniel Cantin

发明人： Marc Levesque ,  Francois Babin ,  Daniel Cantin

IPC分类号： G06F19/00

CPC分类号： G01S7/484 ,  G01S7/4868 ,  G01S7/487 ,  G01S17/10

摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.

摘要翻译： 减少响应时间的方法和装置以及随着光学测距仪测距的可能性的增加，数字化从从不同类型的物体返回的脉冲回波获得的信号波形，脉冲回波太弱，不能从 在捕获脉冲回波期间，单个波形或物体可能运动。 在本发明的第一实施例中，通过使用信号平均处理来减少数字光学测距仪近距离处的响应时间，其中要平均的数据数量根据预定功能的距离而变化。 在本发明的第二实施例中，沿着数字光学测距仪的视线测量对象的运动概率增加，并且通过在平均之前执行每个获取的信号波形的范围偏移来测量对象速度。 在本发明的第三实施例中，在数字光学测距仪的视线中获取的信号波形在预定的区域上被扫描，并且移动和平均的范围，以允许早期检测和进入该区域的物体的测距。

公开(公告)号：US20070076202A1

公开(公告)日：2007-04-05

申请号：US11241634

申请日：2005-09-30

申请人： Daniel Cantin ,  Francois Babin ,  Marc Levesque

发明人： Daniel Cantin ,  Francois Babin ,  Marc Levesque

IPC分类号： G01N21/00

CPC分类号： G01N21/53 ,  A01M7/0096 ,  G01N15/0205 ,  G01N15/0211 ,  G01N2021/1793 ,  G01N2021/4709 ,  G01S17/88

摘要： An optical system for measuring in real-time the spatial distribution of aerosol particles, such as pesticides or the like, sprayed from a vehicle over an agricultural field. An optical sensor is mounted directly on the vehicle and sends an excitation light beam through the aerosol as it is being sprayed. The resulting scattered light is received and analyzed to deduce therefrom information on the spatial distribution of the particles. This information is relayed to a processing unit, which in turn provides spraying instructions, for example a warning signal, to the operator of the system. The spraying of the aerosol can therefore be controlled in real-time to avoid contamination of sensitive areas.

摘要翻译： 一种用于实时测量车辆在农田上喷洒的气溶胶颗粒（如农药等）的空间分布的光学系统。 光学传感器直接安装在车辆上，并且在喷雾时将激发光束通过气溶胶。 所得到的散射光被接收和分析，从而推导出关于颗粒的空间分布的信息。 该信息被中继到处理单元，处理单元又向系统的操作者提供喷射指令，例如警告信号。 因此可以实时控制气雾剂的喷雾，以避免敏感区域的污染。

公开(公告)号：US20070076201A1

公开(公告)日：2007-04-05

申请号：US11240149

申请日：2005-09-30

申请人： Francois Babin ,  Marc Levesque

发明人： Francois Babin ,  Marc Levesque

IPC分类号： G01N21/00

CPC分类号： G01N21/53 ,  G01N2021/1793 ,  G01N2021/4709 ,  G01S7/4816 ,  G01S17/95 ,  Y02A90/19

摘要： A flat spatial response LIDAR apparatus for detecting particles within a short range is provided. The apparatus includes a light source projecting a light beam which is back-scattered by the particles to be detected. The back-scattered light is received, detected and analyzed. A spatial filter spatially filters the received back-scattered light in order to flatten the spatial response of the apparatus, so that a same concentration of particles at any distance within the short range will generate a signal of substantially the same intensity. This is for example accomplished by a properly profiled mask disposed in front of the detector, or a plurality of spatially distributed waveguides. As a result, the LIDAR apparatus can compensate for the 1/r2 dependence, or other dependences of the back-scattered light on the distance r.

摘要翻译： 提供了用于检测在短范围内的颗粒的平坦空间响应LIDAR装置。 该装置包括投射被待检测颗粒反向散射的光束的光源。 接收，检测和分析背散射光。 空间滤波器对接收到的反向散射光进行空间滤波，以平坦化装置的空间响应，使得在短距离内的任何距离处的相同浓度的颗粒将产生基本上相同强度的信号。 这例如通过设置在检测器前面的适当轮廓的掩模或多个空间分布的波导来实现。 结果，激光雷达装置可以补偿反射散射光对距离r的1 / r 2/2的依赖性或其他依赖性。

公开(公告)号：US20080309914A1

公开(公告)日：2008-12-18

申请号：US12141282

申请日：2008-06-18

申请人： Daniel Cantin ,  Pascal Gallant ,  Francois Babin

发明人： Daniel Cantin ,  Pascal Gallant ,  Francois Babin

IPC分类号： G01C3/08 ,  G01N21/47

CPC分类号： G01S17/10

摘要： A method for detecting an object using visible light comprises providing a visible-light source having a function of illuminating an environment. The visible-light source is driven to emit visible light in a predetermined mode, with visible light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection/backscatter of the emitted visible light is received from an object. The reflection/backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.

摘要翻译： 使用可见光检测物体的方法包括提供具有照亮环境的功能的可见光源。 驱动可见光源以预定模式发射可见光，以预定模式的可见光被发射，使得光源保持照亮环境的功能。 从物体接收发射的可见光的反射/反向散射。 反射/反向散射在所选波长范围内作为来自光源的期望的检测范围的函数进行滤波以获得光输入。 物体的存在或位置用作为光输入和预定模式的函数的期望的检测范围来识别。

公开(公告)号：US20100184489A1

公开(公告)日：2010-07-22

申请号：US12354954

申请日：2009-01-16

申请人： Bertrand Penther ,  Francois Babin

发明人： Bertrand Penther ,  Francois Babin

IPC分类号： H04B1/38

CPC分类号： H04W52/029 ,  Y02D70/1262 ,  Y02D70/23

摘要： A method and apparatus are provided for reducing power consumption within a wireless device operating on a downlink shared control channel. The method includes the steps of monitoring the downlink shared control channel for control messages, detecting an access grant from a cyclic redundancy check process, decoding the detected access grant and determining a type of access grant from the decoded access grant and activating a portion of the wireless device in response to the determined type of access grant.

摘要翻译： 提供一种用于降低在下行链路共享控制信道上操作的无线设备中的功耗的方法和装置。 该方法包括以下步骤：监视用于控制消息的下行链路共享控制信道，从循环冗余校验过程检测接入许可，解码检测到的接入许可，并根据解码的接入许可确定接入许可的类型，并激活 无线设备响应于所确定的接入许可类型。

公开(公告)号：US20070165682A1

公开(公告)日：2007-07-19

申请号：US11652634

申请日：2007-01-12

申请人： Gang He ,  Daniel Gariepy ,  Hongxin Chen ,  Francois Babin

发明人： Gang He ,  Daniel Gariepy ,  Hongxin Chen ,  Francois Babin

IPC分类号： H01S3/10 ,  H01S3/083 ,  H01S3/08

CPC分类号： H01S3/083 ,  H01S5/141 ,  H01S5/4087

摘要： A widely-tunable laser apparatus comprises a plurality of tunable lasers having different ranges that overlap to encompass a desired operating range of wavelengths (for example from 1250 nm to 1650 nm) of the widely-tunable laser apparatus. The tunable lasers are tunable synchronously and selectively with their respective outputs connected in common to sweep the output of the widely-tunable laser apparatus substantially continuously over said operating range. The tunable lasers share the same tuning means which has a plurality of independent channels, each for light from a respective one of the tunable lasers.

摘要翻译： 广泛可调谐的激光装置包括具有不同范围的多个可调激光器，其重叠以包含广泛可调激光装置的期望的波长（例如1250nm至1650nm）的工作范围。 可调谐激光器可以同步和选择性地可调谐，其各自的输出共同连接，以在所述操作范围内基本连续地扫描广泛可调激光设备的输出。 可调激光器共享相同的调谐装置，该调谐装置具有多个独立通道，每个独立通道用于来自可调激光器的相应一个的光。

公开(公告)号：US07930572B2

公开(公告)日：2011-04-19

申请号：US10849709

申请日：2004-05-19

申请人： Frederic Bonavita ,  Pascal Guignon ,  Laurent Le-Faucheur ,  Francois Babin

发明人： Frederic Bonavita ,  Pascal Guignon ,  Laurent Le-Faucheur ,  Francois Babin

IPC分类号： G06F1/32 ,  G06F1/26 ,  G06F13/10

CPC分类号： G06F1/3203 ,  G06F1/3275 ,  Y02D10/14

摘要： A processing system includes a processor (20) having an idle mode node for generating an idle mode signal indicating whether the processor is in an idle mode and a memory (22) having a data retention node for receiving a data retention mode signal. The memory includes circuitry for placing the memory in a low power state responsive to the data retention mode signal. The idle mode signal drives the data retention node, such that the memory is placed in the low power state when the processor is in idle mode.

摘要翻译： 处理系统包括具有空闲模式节点的处理器（20），用于产生指示处理器处于空闲模式的空闲模式信号和具有用于接收数据保持模式信号的数据保持节点的存储器（22）。 存储器包括用于响应于数据保持模式信号将存储器置于低功率状态的电路。 空闲模式信号驱动数据保留节点，使得当处理器处于空闲模式时，存储器处于低功率状态。

公开(公告)号：US07635854B1

公开(公告)日：2009-12-22

申请号：US12169872

申请日：2008-07-09

申请人： Francois Babin

发明人： Francois Babin

IPC分类号： G01N15/06 ,  G01F23/00

CPC分类号： G01F23/292 ,  G01F23/2928

摘要： A method and apparatus provide for non-contact optical measurement of the level of a fluid stored in a tank or container, the surface of the fluid being possibly agitated. The method processes numerically the digitized signal waveforms generated by a lidar apparatus based on a pulsed time-of-flight modulation scheme. A key step of the numerical processing is the computation of a waveform in which each data point is obtained from a statistical estimator of the variability of the amplitude signal echo measured at the distance from the lidar apparatus that corresponds to the rank of the data point in the waveform. The statistical estimator is preferably the standard deviation. By using a statistical estimator of the variability of the captured signal amplitude, the specific signal echo returned from an agitated fluid surface can be greatly amplified as compared to the signal echoes returned from any obstacle or medium that could be present along the path of the optical beam radiated by the lidar apparatus. The method then allows for an efficient retrieval of the useful signal echo from which the level of the fluid surface can be reliably measured with greater accuracy, particularly in situations where the useful signal echo would be buried in a strong signal echo returned from any optically scattering or absorbing medium that would fill in the volume of the tank above the fluid surface.

摘要翻译： 一种方法和装置提供存储在罐或容器中的流体的水平的非接触式光学测量，所述流体的表面可能被搅动。 该方法基于脉冲时间飞行调制方案对由激光雷达装置产生的数字化信号波形进行数字处理。 数字处理的关键步骤是计算波形，其中从统计估计器获得每个数据点，该统计估计器在与激光雷达装置的距离处测量的幅度信号回波的变化对应于数据点的等级 波形。 统计估计器最好是标准偏差。 通过使用捕获的信号幅度的可变性的统计估计器，与从可能沿着光学路径存在的任何障碍物或介质返回的信号回波相比，从搅动的流体表面返回的特定信号回波可以被大大地放大 由激光雷达装置辐射的光束。 该方法然后允许有效的信号回波的有效检索，从该信号回波可以更精确地可靠地测量流体表面的水平，特别是在将有用信号回波埋在从任何光学散射返回的强信号回波的情况下 或吸收介质，其将填充在流体表面上方的罐的体积。

公开(公告)号：US20050144494A1

公开(公告)日：2005-06-30

申请号：US10849709

申请日：2004-05-19

申请人： Frederic Bonavita ,  Pascal Guignon ,  Laurent Le-Faucheur ,  Francois Babin

发明人： Frederic Bonavita ,  Pascal Guignon ,  Laurent Le-Faucheur ,  Francois Babin

IPC分类号： G06F1/04 ,  G06F1/32 ,  G06F9/00 ,  H04Q7/32

CPC分类号： G06F1/3203 ,  G06F1/3275 ,  Y02D10/14

摘要： A processing system includes a processor (20) having an idle mode node for generating an idle mode signal indicating whether the processor is in an idle mode and a memory (22) having a data retention node for receiving a data retention mode signal. The memory includes circuitry for placing the memory in a low power state responsive to the data retention mode signal. The idle mode signal drives the data retention node, such that the memory is placed in the low power state when the processor is in idle mode.

摘要翻译： 处理系统包括具有空闲模式节点的处理器（20），用于产生指示处理器处于空闲模式的空闲模式信号和具有用于接收数据保持模式信号的数据保持节点的存储器（22）。 存储器包括用于响应于数据保持模式信号将存储器置于低功率状态的电路。 空闲模式信号驱动数据保留节点，使得当处理器处于空闲模式时，存储器处于低功率状态。