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    Seat heater and capacitive occupancy sensor combination
    4.
    发明授权
    Seat heater and capacitive occupancy sensor combination 有权
    座椅加热器和电容式占用传感器组合

    公开(公告)号：US08729430B2

    公开(公告)日：2014-05-20

    申请号：US13637189

    申请日：2011-03-22

    申请人： Laurent Lamesch ,  Michael Virnich ,  Aloyse Schoos

    发明人： Laurent Lamesch ,  Michael Virnich ,  Aloyse Schoos

    IPC分类号： H05B1/00

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

    摘要： A combined seat heater and capacitive occupancy sensor comprises a heater network and a capacitive sensing network. The heater network includes a heating element (10) connected between a first node (21) and a second node (22) to dissipate heat. The capacitive sensing network is connected to the heating element to apply an oscillating current thereto and to derive a capacitive load of the heating element from the voltage resulting on the heating element. The heater network comprises a common mode choke (16) connecting the first and the second node to a third (23) and a fourth (24) node, respectively. The capacitive sensing network further comprises means to sustain the oscillating current in or to drive the oscillating current into the heating element as well as a high-impedance amplifier (32) having an input node operatively connected to the heating element to probe the resulting voltage, and an output node (44) to provide an output signal indicative of the voltage.

    摘要翻译： 组合座椅加热器和电容占用传感器包括加热器网络和电容感测网络。 加热器网络包括连接在第一节点（21）和第二节点（22）之间以散热的加热元件（10）。 电容感测网络连接到加热元件以向其施加振荡电流并且从产生加热元件的电压导出加热元件的电容性负载。 加热器网络包括分别将第一和第二节点连接到第三（23）和第四（24）节点的共模扼流圈（16）。 电容感测网络还包括在振荡电流中保持振荡电流或驱动振荡电流进入加热元件的装置，以及具有可操作地连接到加热元件的输入节点以探测所得到的电压的高阻抗放大器（32） 以及输出节点（44），用于提供指示电压的输出信号。

    Rfid Transceiver Unit
    5.
    发明申请
    Rfid Transceiver Unit 审中-公开
    Rfid收发单元

    公开(公告)号：US20080278287A1

    公开(公告)日：2008-11-13

    申请号：US11911735

    申请日：2006-04-18

    申请人： Michael Virnich ,  Laurent Lamesch

    发明人： Michael Virnich ,  Laurent Lamesch

    IPC分类号： H04Q5/22 ,  G08B23/00

    CPC分类号： B60R21/01556 ,  B60R2021/01088 ,  G06K7/10336

    摘要： An RFID transceiver unit (10) for detecting an RFID transponder said transceiver unit comprises a transmitter associated with a loop-shaped transmitting antenna (12) for transmitting an electromagnetic excitation field and a receiver associated with a loop-shaped receiving antenna (14). When the RFID transponder (18) is excited by the excitation field (24), the RFID transponder emits an electromagnetic response field, which induces a transponder signal in the receiving antenna. The received signal generated by the receiving antenna in response to an electromagnetic field thus contains the transponder signal. The received signal of the receiving antenna generally contains an interfering signal directly induced by the excitation field in the receiving antenna. The transceiver unit comprises means for attenuating the interfering signal in the received signal.

    摘要翻译： 一种用于检测RFID应答器的RFID收发器单元（10），所述收发器单元包括与用于传输电磁激励场的环形发射天线（12）相关联的发射机和与环形接收天线（14）相关联的接收机。 当RFID应答器（18）被激励场（24）激发时，RFID应答器发射电磁响应场，其在接收天线中引起应答器信号。 由接收天线响应于电磁场产生的接收信号因此包含应答器信号。 接收天线的接收信号通常包含由接收天线中的激励场直接感应的干扰信号。 收发器单元包括用于衰减接收信号中的干扰信号的装置。

    SEAT HEATER AND CAPACITIVE OCCUPANCY SENSOR COMBINATION
    6.
    发明申请
    SEAT HEATER AND CAPACITIVE OCCUPANCY SENSOR COMBINATION 有权
    座椅加热器和电容式传感器组合

    公开(公告)号：US20130020305A1

    公开(公告)日：2013-01-24

    申请号：US13637189

    申请日：2011-03-22

    申请人： Laurent Lamesch ,  Michael Virnich ,  Aloyse Schoos

    发明人： Laurent Lamesch ,  Michael Virnich ,  Aloyse Schoos

    IPC分类号： H05B1/00

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

    摘要： A combined seat heater and capacitive occupancy sensor comprises a heater network and a capacitive sensing network. The heater network includes a heating element (10) connected between a first node (21) and a second node (22) to dissipate heat. The capacitive sensing network is connected to the heating element to apply an oscillating current thereto and to derive a capacitive load of the heating element from the voltage resulting on the heating element. The heater network comprises a common mode choke (16) connecting the first and the second node to a third (23) and a fourth (24) node, respectively. The capacitive sensing network further comprises means to sustain the oscillating current in or to drive the oscillating current into the heating element as well as a high-impedance amplifier (32) having an input node operatively connected to the heating element to probe the resulting voltage, and an output node (44) to provide an output signal indicative of the voltage.

    摘要翻译： 组合座椅加热器和电容占用传感器包括加热器网络和电容感测网络。 加热器网络包括连接在第一节点（21）和第二节点（22）之间以散热的加热元件（10）。 电容感测网络连接到加热元件以向其施加振荡电流并且从产生加热元件的电压导出加热元件的电容性负载。 加热器网络包括分别将第一和第二节点连接到第三（23）和第四（24）节点的共模扼流圈（16）。 电容感测网络还包括在振荡电流中保持振荡电流或驱动振荡电流进入加热元件的装置，以及具有可操作地连接到加热元件的输入节点以探测所得到的电压的高阻抗放大器（32） 以及输出节点（44），用于提供指示电压的输出信号。

    HEATING ELEMENT OPERATED AS CAPACITIVE SENSING ELECTRODE
    7.
    发明申请
    HEATING ELEMENT OPERATED AS CAPACITIVE SENSING ELECTRODE 有权
    加热元件作为电容式感应电极操作

    公开(公告)号：US20130334196A1

    公开(公告)日：2013-12-19

    申请号：US14000670

    申请日：2012-02-21

    申请人： Laurent Lamesch ,  Thomas Meyers

    发明人： Laurent Lamesch ,  Thomas Meyers

    IPC分类号： B60N2/00 ,  B60N2/56

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

    摘要： A combined seat heater and capacitive occupancy sensor comprises a heater network including a heating element (11) and a capacitive sensing circuit connected to the heating element to sense a capacitive load. A first and a second interface are provided for connecting the heating element to a first and a second terminal of a power source, respectively. Each interface comprises electronically controlled switches (3, 5; 4, 6) arranged in series and defining an intermediate node (20; 21). An oscillator (8) is AC-coupled to the intermediate nodes to apply an oscillating voltage thereto. A current measuring means (9), AC-coupled between the oscillator and the heating element, keeps the AC-potential of the heating element at least substantially equal, in amplitude and phase, to the oscillating voltage on the intermediate nodes and to derive the capacitive load from a thus resulting current flowing into the heating element.

    摘要翻译： 组合座椅加热器和电容占用传感器包括加热器网络，其包括加热元件（11）和连接到加热元件以感测电容性负载的电容感测电路。 提供了第一和第二接口，用于将加热元件分别连接到电源的第一和第二端子。 每个接口包括串联布置并限定中间节点（20; 21）的电子控制开关（3,5; 4,6）。 振荡器（8）与中间节点交流耦合以向其施加振荡电压。 交流耦合在振荡器和加热元件之间的电流测量装置（9）使加热元件的交流电势在振幅和相位上至少基本上等于中间节点上的振荡电压，并导出 由此产生的电流流入加热元件的电容性负载。

    Heating element operated as capacitive sensing electrode
    8.
    发明授权
    Heating element operated as capacitive sensing electrode 有权

    公开(公告)号：US09656575B2

    公开(公告)日：2017-05-23

    申请号：US14000670

    申请日：2012-02-21

    申请人： Laurent Lamesch ,  Thomas Meyers

    发明人： Laurent Lamesch ,  Thomas Meyers

    IPC分类号： B60L1/02 ,  H05B1/00 ,  H05B3/00 ,  H05B11/00 ,  A47C7/72 ,  A47C31/00 ,  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 heater network including a heating element (11) and a capacitive sensing circuit connected to the heating element to sense a capacitive load. A first and a second interface are provided for connecting the heating element to a first and a second terminal of a power source, respectively. Each interface comprises electronically controlled switches (3, 5; 4, 6) arranged in series and defining an intermediate node (20; 21). An oscillator (8) is AC-coupled to the intermediate nodes to apply an oscillating voltage thereto. A current measuring means (9), AC-coupled between the oscillator and the heating element, keeps the AC-potential of the heating element at least substantially equal, in amplitude and phase, to the oscillating voltage on the intermediate nodes and to derive the capacitive load from a thus resulting current flowing into the heating element.

    Seat heater usable as antenna electrode
    9.
    发明授权
    Seat heater usable as antenna electrode 有权

    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.

    Robust capacitive measurement system
    10.
    发明授权
    Robust capacitive measurement system 有权
    坚固的电容测量系统

    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。