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51. 发明申请

WO2018050557A1 METHOD FOR DETERMINING A SENSE IMPEDANCE IN A GUARD-SENSE CAPACITIVE SENSOR 审中-公开
标题翻译：确定防护电容式传感器中的感测阻抗的方法
公开(公告)号：WO2018050557A1
公开(公告)日：2018-03-22
申请号：PCT/EP2017/072607
申请日：2017-09-08
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： G01R27/02 , B60N2/00 , G01D5/24
摘要： A method for determining a sense impedance of a guard-sense capacitive sensor operated in loading mode, the sensor comprising an electrically conductive sense electrode connected to a sense node, an electrically conductive guard electrode connected to a guard node, a periodic guard voltage source, and a control and evaluation circuit operatively. The method comprises the steps of: a. providing a periodic guard voltage to the guard electrode b. sequentially providing a number of different periodic reference voltages of amplitudes Vref, via a reference impedance of a predetermined value Zref, to the sense node using a reference periodic voltage source; c. for each provided reference voltage, determining the value corresponding to the respective amplitude Inn, of the current applied to the sense node by the current measurement circuit; d. determining the amplitude of a sense reference voltage Vs to be provided to the sense node using the reference periodic voltage source, which would lead to a current, applied by the control and evaluation circuit, with an amplitude of zero; e. calculating the unknown sense impedance Zx of the sense electrode, with reference to the sense reference voltage Vs determined in step d, the periodic guard voltage Vg, and the reference impedance Zref.
摘要翻译：一种用于确定在加载模式下操作的保护 - 感测电容传感器的感测阻抗的方法，所述传感器包括连接至感测节点的导电感测电极，连接至保护电极的保护电极节点，周期性保护电压源以及操作性地控制和评估电路。该方法包括以下步骤：a。向防护电极b提供周期性的防护电压。使用参考周期性电压源经由预定值Zref的参考阻抗顺序地提供振幅Vref的多个不同周期性参考电压到所述感测节点; C。针对每个提供的参考电压，确定由所述电流测量电路施加到所述感测节点的电流中的与相应幅度Inn相对应的值; d。使用所述参考周期性电压源来确定将被提供给所述感测节点的感测参考电压Vs的振幅，所述参考周期性电压源将导致由所述控制和评估电路施加的具有零幅度的电流; 即参照在步骤d中确定的感测参考电压Vs，周期性保护电压Vg和参考阻抗Zref，计算感测电极的未知感测阻抗Zx。

52. 发明申请

WO2016071416A1 LOW-COST COMPLEX IMPEDANCE MEASUREMENT CIRCUIT 审中-公开
标题翻译：低成本复合阻抗测量电路
公开(公告)号：WO2016071416A1
公开(公告)日：2016-05-12
申请号：PCT/EP2015/075743
申请日：2015-11-04
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： G01D5/24 , B60R21/015 , G01R27/26
CPC分类号： G01R31/2829 , B60R21/01532 , G01R27/2605
摘要： A method of measuring impedance of a sense-only capacitive sensor (12) operated in loading mode, comprises the following steps: - combining (94) a plurality of synchronized output signals (38, 40, 42); - applying (96) low-pass filtering to the summed output signals (38, 40, 42) to generate a sinusoidal test signal; - applying (98) the sinusoidal test signal to a sensor signal voltage divider circuit and to a reference voltage divider circuit (62); - determining (100) amplitude and relative phase, with respect to the sinusoidal test signal, of a sensor voltage signal and a reference voltage signal; - obtaining (104) a difference voltage signal by subtracting the reference voltage signal from the sensor voltage signal; and - feeding (106) the difference voltage signal to a vector demodulator unit (72) for obtaining a real part and an imaginary part of the complex impedance of the capacitive sensor (12); - an impedance measurement circuit (10) using such method for determining a complex impedance of a sense-only capacitive sensor (12) operated in loading mode; and - a software module (70) for carrying out such method.
摘要翻译：一种测量以加载模式操作的仅感性电容式传感器（12）的阻抗的方法包括以下步骤： - 组合（94）多个同步输出信号（38,40,42）; - 对所述相加的输出信号（38,40,42）施加（96）低通滤波以产生正弦测试信号; - 将正弦测试信号（98）应用于传感器信号分压器电路和参考分压器电路（62）; - 确定传感器电压信号和参考电压信号相对于正弦测试信号的振幅和相对相位; - 通过从传感器电压信号中减去参考电压信号来获得（104）差分电压信号; 以及将所述差分电压信号馈送（106）到矢量解调器单元（72），用于获得电容传感器（12）的复阻抗的实部和虚部; - 使用这种方法确定在加载模式下操作的仅感性电容式传感器（12）的复阻抗的阻抗测量电路（10）; 以及 - 用于执行这种方法的软件模块（70）。

53. 发明申请

WO2016062824A1 LOW-COST COMPLEX IMPEDANCE MEASUREMENT CIRCUIT FOR GUARDSENSE CAPACITIVE SENSORS OPERATED IN LOADING MODE 审中-公开
标题翻译：低成本复合阻抗测量电路，用于在加载模式下运行的保护电容式传感器
公开(公告)号：WO2016062824A1
公开(公告)日：2016-04-28
申请号：PCT/EP2015/074533
申请日：2015-10-22
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： G01D5/24 , H03K17/955 , B60R21/015
CPC分类号： B60R21/01532 , B60N2/002 , G01D5/24 , H03K2217/960735 , H03K2217/960765
摘要： A microcontroller (130) uses a combination of several synchronized PWM (138) outputs to generate a low distortion sine wave by summing the PWM outputs and filtering the summed signal. The sine wave is used as guard voltage for the guard electrode (116). The unknown impedance (118) is measured by impinging the guard voltage on the sense electrode (114) by a transistor (148) connected in common base configuration and then transferring the sense current through the common base connected transistor (148) to a transimpedance amplifier made out of a second transistor (150) connected in common emitter configuration. The output voltage at the collector of the second transistor (150) is measured by an ADC (140) input of the microcontroller (130). The microcontroller (130) translates the ADC output values into the unknown impedance (118) to be measured by doing a software demodulation of the ADC output values. Additionally, in order to increase the precision of the measurement, a reference impedance (182) can be connected in parallel to the unknown impeder (118) and be used by the microcontroller (130) to eliminate gain errors of the signal sensing circuit (146).
摘要翻译：微控制器（130）使用多个同步PWM（138）输出的组合来通过对PWM输出求和并对相加的信号进行滤波来产生低失真正弦波。正弦波用作保护电极（116）的保护电压。通过以共同的基本配置连接的晶体管（148）冲击感测电极（114）上的保护电压，然后将感测电流通过公共基极连接晶体管（148）传送到跨阻放大器来测量未知阻抗（118）由以共同发射器配置连接的第二晶体管（150）制成。第二晶体管（150）的集电极处的输出电压由微控制器（130）的ADC（140）输入来测量。微控制器（130）将ADC输出值转换成未知阻抗（118），以通过对ADC输出值进行软件解调来测量。另外，为了提高测量的精度，参考阻抗（182）可以与未知阻抗器（118）并联连接，由微控制器（130）使用以消除信号感测电路（146）的增益误差）。

54. 发明申请

WO2015028335A1 INDUCTIVE RESPIRATION SENSOR 审中-公开
标题翻译：电感呼吸传感器
公开(公告)号：WO2015028335A1
公开(公告)日：2015-03-05
申请号：PCT/EP2014/067581
申请日：2014-08-18
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： A61B5/08 , H03F1/08
CPC分类号： A61B5/0809 , A61B5/725 , H03F3/45475 , H03F2200/261 , H03F2203/45544 , H03F2203/45594
摘要： An inductive respiration sensor (10) comprises an inductive transducer (12) and sensing circuitry. The sensing circuitry comprises a transimpedance amplifier, TIA, (14), the sense input (16) of which is operatively connected to the inductive transducer. The TIA is configured to drive a current from its output (20) into the sense input such that the voltage on the sense input follows the voltage applied to the reference input (18) and to cause a voltage on the output indicative of the current. The TIA comprises a first (34) and a second (30) transistor. The collector or drain and the emitter or source of the first transistor are operatively connected between the sense input and the output of the TIA. The emitter or source of the second transistor is connected to the reference input, the collector or drain of the second transistor is connected to the base or gate of the first transistor, and the base or gate of the second transistor is connected to the sense input.
摘要翻译：感应呼吸传感器（10）包括感应换能器（12）和感测电路。感测电路包括跨阻抗放大器TIA（14），其感测输入（16）可操作地连接到感应换能器。 TIA被配置为将电流从其输出（20）驱动到感测输入中，使得感测输入上的电压跟随施加到参考输入（18）的电压，并且在输出上引起指示电流的电压。 TIA包括第一（34）和第二（30）晶体管。第一晶体管的集电极或漏极以及发射极或源极可操作地连接在感测输入和TIA的输出之间。第二晶体管的发射极或源极连接到参考输入，第二晶体管的集电极或漏极连接到第一晶体管的基极或栅极，第二晶体管的基极或栅极连接到感测输入端。

55. 发明申请

WO2014122197A1 CAPACITIVE SENSOR 审中-公开
标题翻译：电容式传感器
公开(公告)号：WO2014122197A1
公开(公告)日：2014-08-14
申请号：PCT/EP2014/052291
申请日：2014-02-06
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , PUETZ, Michael , HOYER, David , PETEREIT, Andreas , MEYERS, Thomas , ALTHAUS, Dr. Frank , VIRNICH, Michael
IPC分类号： G01L1/14 , B60N2/00 , G01D5/24 , H03K17/955 , B60R21/015
CPC分类号： B60N2/002 , B60N2/56 , B60N2/5685 , B60R21/01532 , G01D5/2405 , G01L1/144 , H03K17/955 , H03K2217/960765
摘要： A capacitive sensor (12) for a vehicle seat (10) comprises an antenna electrode (16) and a control and evaluation circuit (14) operatively connected to the antenna electrode. The control and evaluation circuit is configured to operate in a first mode of operation, during which it measures alternating electrical current flowing between the antenna electrode and ground. The capacitive sensor comprises a seat frame connector (38) for connecting the control and evaluation circuit to the seat frame (20) of the vehicle seat. The control and evaluation circuit is configured to operate in a second mode of operation, during which it measures electrical current flowing into the seat frame connector.
摘要翻译：用于车辆座椅（10）的电容式传感器（12）包括天线电极（16）和可操作地连接到天线电极的控制和评估电路（14）。控制和评估电路被配置为在第一操作模式下操作，在此期间，其测量在天线电极和地之间流动的交流电流。电容传感器包括用于将控制和评估电路连接到车辆座椅的座椅框架（20）的座椅框架连接器（38）。控制和评估电路被配置为在第二操作模式下操作，在此期间，其测量流入座椅框架连接器的电流。

56. 发明申请

WO2014096127A1 CAPACITIVE SENSOR CONFIGURED FOR USING HEATING ELEMENT AS ANTENNA ELECTRODE 审中-公开
标题翻译：使用加热元件配置的电容式传感器作为天线电极
公开(公告)号：WO2014096127A1
公开(公告)日：2014-06-26
申请号：PCT/EP2013/077283
申请日：2013-12-19
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , VIRNICH, Michael , PUETZ, Michael
IPC分类号： G01D5/24 , B60N2/56 , B60N2/00
CPC分类号： B60N2/5685 , B60H1/00742 , B60N2/002 , B60R21/01552 , G01D5/24
摘要： A capacitive sensor configured for connection between a heating element and a heating current supply comprises a common mode choke (CMC) for AC-decoupling the heating element from the heating current supply. The CMC comprises first and second inductively coupled windings, the first winding for connection between a first terminal of the heating current supply and a first terminal of the heating element and the second winding for connection between a second terminal of the heating element and a second terminal of the heating current supply. The capacitive sensor further comprises a control and evaluation circuit for injecting an AC signal into the heating element via a measurement node, measuring a voltage on and/or a current across the measurement node, and to derive an impedance between the heating element and a counter electrode from the measurement. The CMC comprises a third winding inductively coupled with the first and second windings, the third winding being operatively coupled with the measurement node.
摘要翻译：配置用于在加热元件和加热电流源之间连接的电容式传感器包括用于使加热元件与加热电流源进行AC分离的共模扼流圈（CMC）。 CMC包括第一和第二电感耦合绕组，用于在加热电流源的第一端子和加热元件的第一端子之间连接的第一绕组和用于在加热元件的第二端子与第二端子之间连接的第二绕组的加热电流供应。电容式传感器还包括控制和评估电路，用于经由测量节点将AC信号注入加热元件，测量跨越测量节点的电压和/或电流，并且导出加热元件和计数器之间的阻抗电极从测量。 CMC包括与第一和第二绕组感应耦合的第三绕组，第三绕组与测量节点可操作地耦合。

57. 发明申请

WO2020007803A1 LIQUID LEVEL DETECTION SYSTEM 审中-公开
公开(公告)号：WO2020007803A1
公开(公告)日：2020-01-09
申请号：PCT/EP2019/067619
申请日：2019-07-01
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , OLK, Michael , PUETZ, Michael , THINNES, Martin
IPC分类号： G01F23/24
摘要： The invention relates to a liquid level detection system (1) for a liquid tank (2). In order to provide inexpensive and reliable means for liquid level detection, the invention provides that the liquid level detection system comprises at least one heating element (R 1 -R 5 ), disposed at least proximate to an inner cavity (2.2) of the liquid tank (2), and a measurement device (10), which is configured to: apply a time-dependent electrical signal to each heating element (R 1 -R 5 ) to heat up the heating element (R 1 -R 5 ) for each heating element (R 1 -R 5 ), detect a quantity that depends on a temperature of the heating element (R 1 -R 5 ), determine a time-dependent change of the quantity in response to the electrical signal, and detect a liquid level based on the time-dependent change of the quantity for each heating element (R 1 -R 5 ).

58. 发明申请

WO2018234394A1 SYSTEM AND METHOD FOR BREATHING MONITORING USING RADAR-BASED SENSOR SYSTEMS AND THE SIGNAL AUTOCORRELATION FUNCTION 审中-公开
公开(公告)号：WO2018234394A1
公开(公告)日：2018-12-27
申请号：PCT/EP2018/066456
申请日：2018-06-20
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： KARAHASANOVIC, Una , TATARINOV, Dimitri , LAMESCH, Laurent , KHAN, Muhammad-Zeeshan
IPC分类号： A61B5/18 , A61B5/05 , A61B5/08 , A61B5/113 , G01S13/88 , A61B5/00
摘要： A method of operating a radar sensor system (10) for monitoring a breathing motion of a subject (24). The radar sensor system (10) includes one radar transmitting antenna (12) and one radar receiving antenna (16) and an evaluation and control unit (22) for evaluating Doppler information from the received radar waves (18). The method comprises transmitting radar waves (14) towards a chest (26) and an abdominal region (28) of the subject (24), receiving radar waves (18) reflected by the subject (24), calculating (38) the autocorrelation function of the received radar signals, calculating (40) the Fourier transform A(y) of the calculated autocorrelation function, determining and recording (42) values of at least two peaks of the calculated Fourier transform A(y), and, from the recorded determined values of the at least two peaks, determine (46, 48) at least one breathing-characteristic parameter of the breathing motion of the subject (24).

59. 发明申请

WO2018069172A1 SEAT BELT STATUS MONITORING SYSTEM 审中-公开
标题翻译：座椅安全带状态监测系统
公开(公告)号：WO2018069172A1
公开(公告)日：2018-04-19
申请号：PCT/EP2017/075453
申请日：2017-10-06
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , PUETZ, Michael , JUSTINGER, Tobias
IPC分类号： B60R22/48 , B60N2/00 , B60R21/015
摘要： Seat monitoring system (11) for monitoring an occupancy related status of at least one seat (14, 18) inside an automotive vehicle compartment (10), the seat monitoring system comprising a control module (20) mounted within the compartment, and at least one sensor module (26) integrated into the at least one seat. The sensor module comprises a sensing system (30) for sensing an occupancy related status with respect to the seat, wherein said control module is arranged in wireless communication with said sensor module. The control module comprises at least three transmitting RF antennas (24) configured to transmit a request signal in at least three directions inside the vehicle compartment; and the sensor module (26) is further configured to receive the request signals from the at least three directions, to determine reception parameters of said request signals, and to transmit an information responsive to said reception parameters to said control module (20).
摘要翻译：（10）内的至少一个座椅（14,18）的占用相关状态的座椅监控系统（11），所述座椅监控系统包括控制模块（20），所述控制模块（20）安装在隔室内;以及至少一个传感器模块（26），其被集成到所述至少一个座椅中。传感器模块包括用于感测与座椅有关的占用状态的感测系统（30），其中所述控制模块被布置为与所述传感器模块无线通信。控制模块包括至少三个发射RF天线（24），其被配置为在车厢内的至少三个方向上发射请求信号; 并且所述传感器模块（26）还被配置为从所述至少三个方向接收所述请求信号，确定所述请求信号的接收参数，并且将响应于所述接收参数的信息发送到所述控制模块（20）。 / p>

60. 发明申请

WO2017129552A1 CAPACITIVE MEASUREMENT CIRCUIT WITH SENSOR WIRING DIAGNOSTICS 审中-公开
标题翻译：具有传感器布线诊断功能的电容测量电路
公开(公告)号：WO2017129552A1
公开(公告)日：2017-08-03
申请号：PCT/EP2017/051402
申请日：2017-01-24
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent
IPC分类号： B60R21/015 , B60N2/00 , H03K17/955
CPC分类号： B60R21/01532 , B60N2/002 , H03K17/955 , H03K2217/94089 , H03K2217/960705 , H03K2217/960735
摘要： A capacitance measurement circuit (28) for determining a sense current of a capacitive sensor (12) with a sense electrode and a guard electrode, comprises a periodic signal voltage source (24), a sense current measurement circuit (30) configured for determining the sense current with reference to a reference voltage, at least one remotely controllable switch member (40),wherein in the first switching state, the at least one switch member (40) electrically connects the sense current measurement circuit (30) to the periodic measurement voltage for providing a first reference voltage, and in the second switching state, the at least one switch member (40) electrically connects the sense current measurement circuit (30) to a second reference voltage that is different from the first reference voltage.
摘要翻译：用于利用感测电极和保护电极来确定电容传感器（12）的感测电流的电容测量电路（28）包括周期性信号电压源（24），感测电流测量（40），其中，在所述第一开关状态中，所述至少一个开关构件（40）将所述感测电流测量结果（40）电连接到所述至少一个开关构件（30）电连接到用于提供第一参考电压的周期性测量电压，并且在第二开关状态中，所述至少一个开关构件（40）将感测电流测量电路（30）电连接到不同的第二参考电压从第一参考电压。

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