公开(公告)号：US07609367B2

公开(公告)日：2009-10-27

申请号：US12066318

申请日：2006-09-01

申请人： Claude Watgen ,  Laurent Lamesch

发明人： Claude Watgen ,  Laurent Lamesch

IPC分类号： G01C3/08

CPC分类号： G01S17/36 ,  G01S17/89

摘要： A method for 3D imaging of an actively illuminated target region includes emitting intensity-modulated light at a variable modulation frequency into the target region, the emitted light is scattered/reflected in the target region depending on the optical properties of the objects or beings present therein, a scattered and/or reflected fraction of the light is detected during an integration time interval by phase-sensitive integration in each pixel of an imaging sensor, the modulation phase between the emitted and the detected light is determined and spatially resolved, and distance information is calculated based on the spatially resolved modulation phase and an average frequency of the modulation frequency.

摘要翻译： 用于主动照射的目标区域的3D成像的方法包括以可变调制频率向目标区域发射强度调制的光，发射的光根据其中存在的物体或物体的光学性质在目标区域中散射/反射 ，在积分时间间隔期间通过成像传感器的每个像素中的相敏积分来检测光的散射和/或反射分数，确定发射光和检测光之间的调制相位并进行空间解析，并且距离信息 是基于空间解析的调制相位和调制频率的平均频率来计算的。

公开(公告)号：US20080239280A1

公开(公告)日：2008-10-02

申请号：US12066318

申请日：2006-09-01

申请人： Claude Watgen ,  Laurent Lamesch

发明人： Claude Watgen ,  Laurent Lamesch

IPC分类号： G01C3/08

CPC分类号： G01S17/36 ,  G01S17/89

摘要： “A method for 3D imaging of an actively illuminated target region includes emitting intensity-modulated light at a variable modulation frequency into the target region, the emitted light is scattered/reflected in the target region depending on the optical properties of the objects or beings present therein, a scattered and/or reflected fraction of the light is detected during an integration time interval by phase-sensitive integration in each pixel of an imaging sensor, the modulation phase between the emitted and the detected light is determined and spatially resolved, and distance information is calculated based on the spatially resolved modulation phase and an average frequency of the modulation frequency.”

摘要翻译： “用于主动照射的目标区域的3D成像的方法包括以可变的调制频率向目标区域发射强度调制的光，根据存在的物体或存在的物体的光学特性，发射的光在目标区域中被散射/反射 其中，通过在成像传感器的每个像素中的相敏积分在积分时间间隔期间检测光的散射和/或反射分数，确定发射光和检测光之间的调制相位并在空间上分辨距离 基于空间分辨的调制相位和调制频率的平均频率来计算信息。

公开(公告)号：US09764669B2

公开(公告)日：2017-09-19

申请号：US13994817

申请日：2011-12-07

申请人： Laurent Lamesch

发明人： Laurent Lamesch

IPC分类号： B60N2/56 ,  B60N2/00 ,  B60R21/015

CPC分类号： B60N2/5685 ,  B60N2/002 ,  B60R21/01532

摘要： A seat heater, e.g. for a vehicle seat, comprises a heating element (10) for dissipating heat when a heating current flows across it and a temperature sensor (15) for providing a temperature signal indicative of the seat temperature. The seat heater comprises a common mode choke (16) with at least three windings. The heating element is connected in series between a first (16.1) and a second (16.2) thereof so as to be operatively connectable to a power source (12) via the common mode choke. The temperature sensor is connected to a third winding (16.3) of the at least three windings in such a way that the temperature signal may be received, e.g. by a temperature controller of the seat heater, via the third winding of the common mode choke.

公开(公告)号：US09551738B2

公开(公告)日：2017-01-24

申请号：US13701158

申请日：2011-06-08

申请人： Laurent Lamesch

发明人： Laurent Lamesch

IPC分类号： G01R27/26 ,  H03K17/955

CPC分类号： G01R27/2605 ,  H03K17/955 ,  H03K2217/960705 ,  H03K2217/96077 ,  H03K2217/960775

摘要： A capacitive sensing circuit is disclosed, wherein the mixer is directly connected to the sense electrode. The AC transimpedance amplifier in front of the mixer in prior art is removed and replaced by a differential DC transimpedance amplifier respectively integrator.The mixer DC offset voltage or current together with the large amplification factor required after the mixer now would result in an inacceptable DC offset at the output of the signal chain. In order to eliminate the effect of the mixer offset, the amplifying stages after the mixer are AC coupled to the mixer output and one of the signals entering the mixer is phase modulated or amplitude modulated with a known low frequency signal. An additional mixer after the AC coupled amplifying stages is driven with the same low frequency modulating signal, resulting in the wanted DC output signal responsive to the capacitance to be measured.

摘要翻译： 混频器直流失调电压或电流以及混频器之后所需的大放大系数将导致信号链输出端的不可接受的直流偏移。 为了消除混频器偏移的影响，混频器之后的放大级AC耦合到混频器输出，并且进入混频器的信号之一用已知的低频信号进行相位调制或幅度调制。 在AC耦合放大级之后的附加混频器用相同的低频调制信号驱动，导致有用的DC输出信号响应于要测量的电容。

公开(公告)号：US09006618B2

公开(公告)日：2015-04-14

申请号：US13637110

申请日：2011-03-22

申请人： Laurent Lamesch ,  Aloyse Schoos

发明人： Laurent Lamesch ,  Aloyse Schoos

IPC分类号： H05B1/02 ,  B60N2/00 ,  B60N2/56 ,  B60R21/015

CPC分类号： B60N2/002 ,  B60N2/5685 ,  B60R21/01532

摘要： A combined seat heater and capacitive occupancy sensor comprises a heating element (10) connected between a first (21) and a second (22) node, and a capacitive sensing network connected to the heating element to apply an oscillating voltage thereto and to derive the capacitive load of the heating element. A common mode choke (16) connects the first and second node to a third (23) and fourth (24) node, respectively. The capacitive sensing network comprises an oscillator (28), AC-coupled to the third and/or the fourth node to drive oscillating voltage into that node, and a transimpedance amplifier (32), which has a first input to receive the oscillating voltage as reference voltage and a second input operatively connected to the heating element. The transimpedance amplifier maintains a voltage on its second input equal to the reference voltage by driving a current into the second input. An output signal (44) indicates the AC component of the current driven into the second input.

摘要翻译： 组合座椅加热器和电容占用传感器包括连接在第一（21）和第二（22）节点之间的加热元件（10）和连接到加热元件的电容感测网络，以向其施加振荡电压并导出 加热元件的容性负载。 共模扼流圈（16）分别将第一和第二节点连接到第三（23）和第四（24）节点。 电容感测网络包括一个与第三和/或第四节点交流耦合的振荡器（28），以驱动振荡电压进入该节点;以及跨阻抗放大器（32），其具有接收振荡电压的第一输入 参考电压和可操作地连接到加热元件的第二输入。 跨阻抗放大器通过将电流驱动到第二输入端来保持其第二输入端的电压等于参考电压。 输出信号（44）表示驱动到第二输入端的电流的交流分量。

公开(公告)号：US08882142B2

公开(公告)日：2014-11-11

申请号：US14000677

申请日：2012-02-22

申请人： Laurent Lamesch ,  Laurent Federspiel

发明人： Laurent Lamesch ,  Laurent Federspiel

IPC分类号： B60R21/16 ,  B60N2/56 ,  B60N2/00 ,  B60R21/015

CPC分类号： B60N2/002 ,  B60N2/5678 ,  B60R21/015 ,  B60R21/01532 ,  B60R21/0154

摘要： A capacitive occupant detection system comprises at least one sensing electrode to be arranged on the bottom side of a seat cushion, a seat heater like structure to be arranged on a top side of said seat cushion, and an evaluation unit operatively coupled to said at least one sensing electrode for determining a value representative of the capacitance between the at least one sensing electrode and the seat heater like structure.

摘要翻译： 一种电容式乘员检测系统，包括至少一个要设置在座垫底部的感测电极，设置在所述座垫的顶侧的座椅加热器状结构，以及评估单元，所述评估单元至少可操作地连接到所述座垫 一个感测电极，用于确定表示所述至少一个感测电极和座椅加热器状结构之间的电容的值。

公开(公告)号：US20130169291A1

公开(公告)日：2013-07-04

申请号：US13701181

申请日：2011-06-08

申请人： Michael Virnich ,  Laurent Lamesch ,  David Hoyer ,  Aloyse Schoos

发明人： Michael Virnich ,  Laurent Lamesch ,  David Hoyer ,  Aloyse Schoos

IPC分类号： G01R31/00

CPC分类号： G01R31/001 ,  H03K17/955 ,  H03K2217/960705 ,  H03K2217/96077

摘要： A method for capacitive sensing comprises the steps of tagging a transmitting signal by modulating a sub-carrier on said signal using state of the art modulation techniques; demodulating said subcarrier out of useful/received signal to prove validity of said signal.

摘要翻译： 一种用于电容感测的方法包括以下步骤：使用现有技术调制技术对所述信号调制子载波来标记发射信号; 从有用/接收信号中解调所述子载波以证明所述信号的有效性。

公开(公告)号：US20100277186A1

公开(公告)日：2010-11-04

申请号：US12677134

申请日：2008-09-09

申请人： Werner Bieck ,  Christian Bour ,  Yves Decoster ,  Guenter Goedert ,  Laurent Lamesch ,  Pierre Orlewski

发明人： Werner Bieck ,  Christian Bour ,  Yves Decoster ,  Guenter Goedert ,  Laurent Lamesch ,  Pierre Orlewski

IPC分类号： G01R27/26

CPC分类号： B60N2/002

摘要： In an occupant detection system, which comprises an electrode arrangement for being placed into the seat of an automotive vehicle, the electrode arrangement including an antenna electrode for emitting an electric field into a detection region above the vehicle seat, and an evaluation circuit operatively connected to the antenna electrode, the evaluation circuit is configured and arranged so as to measure a capacitance influenceable by an occupying item in the detection region through interaction of the occupying item with the electric field. The evaluation circuit is further configured and arranged so as to determine fluctuations of the measured capacitance; analyse a frequency spectrum of the fluctuations; and derive an occupancy state of the vehicle seat based on both the measured capacitance and the frequency spectrum.

摘要翻译： 在乘员检测系统中，其包括用于放置在机动车辆的座椅中的电极装置，所述电极装置包括用于将电场发射到车辆座椅上方的检测区域中的天线电极，以及可操作地连接到 天线电极，评估电路被配置和布置成通过占用项目与电场的相互作用来测量由检测区域中的占用项目影响的电容。 评估电路被进一步配置和布置以便确定所测量的电容的波动; 分析波动的频谱; 并且基于测量的电容和频谱两者导出车辆座椅的占用状态。

公开(公告)号：US20100045966A1

公开(公告)日：2010-02-25

申请号：US12441827

申请日：2007-09-11

申请人： Marie-Astrid Cauquy ,  Laurent Lamesch

发明人： Marie-Astrid Cauquy ,  Laurent Lamesch

IPC分类号： G01C3/08

CPC分类号： G01B11/24 ,  G01S17/36 ,  G01S17/89

摘要： For acquiring a 3-D image of a scene, the scene is illuminated with modulated light emitted by an illumination unit and imaged onto an array of lock-in pixel sensor cells, which detect the previously emitted light after it has been scattered or reflected by an object or a living being in the scene. One determines the modulation phase of the light detected at the lock-in pixel sensor cells and provides a reference modulation phase that stands in a known relationship with the modulation phase of the light at the time of the emission. Based upon the reference modulation phase and the modulation phase of the light detected at the lock-in pixel sensor cells one then calculates depth information on the scene. The modulated light is emitted by a plurality of individual light emitting devices of the illumination unit, each of the light emitting devices emitting a part of the modulated light, and the reference modulation phase is provided as an average of the modulation phases of the parts of modulated light emitted by the light emitting devices.

摘要翻译： 为了获取场景的3-D图像，用照明单元发射的调制光照亮场景，并将其成像到锁定像素传感器单元的阵列上，锁定像素传感器单元在散射或反射之后检测先前发射的光 一个物体或生活在现场。 一个确定在锁定像素传感器单元处检测到的光的调制相位，并提供与发射时的光的调制相位已知关系的参考调制相位。 基于在锁定像素传感器单元处检测到的光的参考调制相位和调制相位，然后计算场景上的深度信息。 调制光由照明单元的多个单独的发光装置发射，每个发光装置发射调制光的一部分，并且参考调制相位被提供为部分调制相位的平均值 由发光器件发射的调制光。

公开(公告)号：US09529029B2

公开(公告)日：2016-12-27

申请号：US13701202

申请日：2011-06-08

申请人： Laurent Lamesch

发明人： Laurent Lamesch

IPC分类号： G01R27/26 ,  H03K17/955

CPC分类号： G01R27/2605 ,  H03K17/955 ,  H03K2217/960705 ,  H03K2217/960775

摘要： A capacitive sensing circuit is disclosed, wherein the transimpedance amplifier in front of the mixer in prior art is removed respectively replaced by an amplifier with low gain and consequently high dynamic range. The mixer DC offset voltage or current together with the large amplification factor required after the mixer now would result in an inacceptable DC offset at the output of the signal chain. In order to eliminate the effect of the mixer offset, the amplifying stages after the mixer are AC coupled to the mixer output and one of the signals entering the mixer is phase modulated or amplitude modulated with a known low frequency signal. An additional mixer after the AC coupled amplifying stages is driven with the same low frequency modulating signal, resulting in the wanted DC output signal responsive to the capacitance to be measured.

摘要翻译： 公开了一种电容式感测电路，其中现有技术中混频器前面的跨阻抗放大器分别由具有低增益和因此高动态范围的放大器取代。 混频器直流失调电压或电流以及混频器之后所需的大放大系数将导致信号链输出端的不可接受的直流偏移。 为了消除混频器偏移的影响，混频器之后的放大级AC耦合到混频器输出，并且进入混频器的信号之一用已知的低频信号进行相位调制或幅度调制。 在AC耦合放大级之后的附加混频器用相同的低频调制信号驱动，导致有用的DC输出信号响应于要测量的电容。