公开(公告)号：US07855595B2

公开(公告)日：2010-12-21

申请号：US12182612

申请日：2008-07-30

申请人： Oliver Nehrig ,  Carlo Peschke ,  Ernst Muellner ,  Adolf Baumann ,  Jens Graul

发明人： Oliver Nehrig ,  Carlo Peschke ,  Ernst Muellner ,  Adolf Baumann ,  Jens Graul

IPC分类号： H03K9/02

CPC分类号： H04L27/06 ,  G06K19/0723 ,  H03D1/18 ,  H03K5/082

摘要： An ASK demodulator for use in an RFID transponder having a limiter circuit associated with the antenna circuit and converting the ASK antenna field strength modulation into an ASK limiter current modulation by limiting the antenna voltage to a fixed value and thereby causing the limiter current to be substantially proportional to the ASK antenna field strength, and a current discriminator circuit that discriminates the ASK limiter current modulation. By converting the field strength modulation into a proportional limiter current and discriminating that limiter current, a linear relationship and a stable demodulator sensitivity are achieved. The current discrimination can be made accurately under low-voltage conditions.

摘要翻译： 一种用于RFID应答器的ASK解调器，其具有与天线电路相关联的限幅器电路，并将ASK天线场强调制转换为ASK限幅器电流调制，将天线电压限制为固定值，从而使限幅器电流基本上 与ASK天线场强成比例的电流鉴别器电路，以及鉴别ASK限制器电流调制的电流鉴别器电路。 通过将场强调制转换为比例限幅电流并鉴别限幅器电流，实现线性关系和稳定的解调器灵敏度。 在低电压条件下可以准确地进行电流鉴别。

公开(公告)号：US07663379B2

公开(公告)日：2010-02-16

申请号：US11425013

申请日：2006-06-19

申请人： Oliver Nehrig ,  Rudiger Ganz

发明人： Oliver Nehrig ,  Rudiger Ganz

IPC分类号： G01R27/26 ,  H03K5/01

CPC分类号： G01D5/24 ,  G01L9/12 ,  G01R27/2605

摘要： A method of capacitance-to-voltage conversion with an external sensor capacitor (CP) and a capacitance-to-voltage converter (14) implemented on an integrated readout circuit that includes a reference capacitor (CR), a sampling capacitor (CS) and a sampling amplifier (22) and which has input terminals (16) to which the sensor capacitor (CP) is connected. The method comprises the steps of a) applying a reference voltage (Vref) to the series connected sensor capacitor (CP) and reference capacitor (CR) and charging the sampling capacitor (CS) to the potential at the interconnection node (A) between the sensor capacitor (CP) and the reference capacitor (CR), b) connecting the sampling capacitor (CS) to inputs of the sampling amplifier. The method further comprises the steps of c) applying the reference voltage (Vref) to the series connected sensor capacitor (CP) and reference capacitor (CR) with a polarity opposite to that in step a) and charging the sampling capacitor (CS) to the potential at the interconnection node (A) between the sensor capacitor (CP) and the reference capacitor (CR) and d) connecting the sampling capacitor (CS) to the inputs of the sampling amplifier in a polarity opposite to that in step b).

摘要翻译： 一种利用外部传感器电容器（CP）和电容 - 电压转换器（14）的电容 - 电压转换的方法，该集成读出电路包括参考电容器（CR），采样电容器（CS）和 采样放大器（22），其具有连接有传感器电容器（CP）的输入端子（16）。 该方法包括以下步骤：a）向串联连接的传感器电容器（CP）和参考电容器（CR）施加参考电压（Vref），并将采样电容器（CS）充电到互连节点（A）的电位 传感器电容器（CP）和参考电容器（CR），b）将采样电容器（CS）连接到采样放大器的输入。 该方法还包括以下步骤：c）将参考电压（Vref）施加到与步骤a）中的极性相反的串联连接的传感器电容器（CP）和参考电容器（CR），并将采样电容器（CS）充电到 在传感器电容器（CP）和参考电容器（CR）之间的互连节点（A）处的电位和d）以与步骤b）相反的极性将采样电容器（CS）连接到采样放大器的输入端， 。

公开(公告)号：US08941473B2

公开(公告)日：2015-01-27

申请号：US13291821

申请日：2011-11-08

申请人： Oliver Nehrig ,  Dirk Preikszat

发明人： Oliver Nehrig ,  Dirk Preikszat

IPC分类号： H04Q5/22 ,  H03K5/22 ,  G06K19/077

CPC分类号： G06K19/07773 ,  G06K19/07766

摘要： An electronic device comprising a first node to be coupled to a first antenna, a second node coupled to a second antenna, a third node to be coupled to a third antenna, a first comparator coupled with a first input to the first node and with a second input to a second node, a second comparator coupled with a first input to the first node and with a second input to the third node, a third comparator coupled with a first input to the second node and with a second input to the third node. Each of the first, the second and the third comparators are configured to compare a first current and a second current at the first input and the second input.

摘要翻译： 一种电子设备，包括要耦合到第一天线的第一节点，耦合到第二天线的第二节点，要耦合到第三天线的第三节点，与第一节点耦合到第一节点的第一比较器， 第二输入到第二节点，第二比较器，其与第一输入耦合到第一节点，并且具有到第三节点的第二输入;第三比较器，与第一输入耦合到第二节点，并且第二输入耦合到第三节点 。 第一，第二和第三比较器中的每一个被配置为比较第一输入端和第二输入端的第一电流和第二电流。

公开(公告)号：US20100156433A1

公开(公告)日：2010-06-24

申请号：US12645029

申请日：2009-12-22

申请人： Oliver Nehrig ,  Adolf Baumann ,  Ralph Ledwa

发明人： Oliver Nehrig ,  Adolf Baumann ,  Ralph Ledwa

IPC分类号： G01R31/02

CPC分类号： G01R31/024

摘要： An electronic device is provided, which includes a current supplying stage which is adapted to supply a first compensation current and a second compensation current to a first wire or a second wire, wherein the first compensation current is determined during a first clock period, when the first wire and the second wire are connected. The second compensation current is determined during a second clock period while the first wire and the second wire are not connected and the magnitude of the second current represents a ratio of a resistance value of the first wire and a resistance value of the second wire.

摘要翻译： 提供了一种电子设备，其包括电流供应级，其适于向第一线或第二线提供第一补偿电流和第二补偿电流，其中在第一时钟周期期间确定第一补偿电流， 第一根线和第二条线连接。 第二补偿电流在第二时钟周期期间确定，而第一线和第二线不连接，并且第二电流的大小表示第一线的电阻值与第二线的电阻值的比。

公开(公告)号：US20120119884A1

公开(公告)日：2012-05-17

申请号：US13291821

申请日：2011-11-08

申请人： Oliver Nehrig ,  Dirk Preikszat

发明人： Oliver Nehrig ,  Dirk Preikszat

IPC分类号： H04Q5/22 ,  H03K5/24

CPC分类号： G06K19/07773 ,  G06K19/07766

摘要： An electronic device comprising a first node to be coupled to a first antenna, a second node coupled to a second antenna, a third node to be coupled to a third antenna, a first comparator coupled with a first input to the first node and with a second input to a second node, a second comparator coupled with a first input to the first node and with a second input to the third node, a third comparator coupled with a first input to the second node and with a second input to the third node. Each of the first, the second and the third comparators are configured to compare a first current and a second current at the first input and the second input.

摘要翻译： 一种电子设备，包括要耦合到第一天线的第一节点，耦合到第二天线的第二节点，要耦合到第三天线的第三节点，与第一节点耦合到第一节点的第一比较器， 第二输入到第二节点，第二比较器，其与第一输入耦合到第一节点，并且具有到第三节点的第二输入;第三比较器，与第一输入耦合到第二节点，并且第二输入耦合到第三节点 。 第一，第二和第三比较器中的每一个被配置为比较第一输入和第二输入处的第一电流和第二电流。

公开(公告)号：US07356423B2

公开(公告)日：2008-04-08

申请号：US10497929

申请日：2004-06-04

申请人： Oliver Nehrig

发明人： Oliver Nehrig

IPC分类号： G01R23/00

CPC分类号： G01D5/2417

摘要： An apparatus for reading out a differential capacity with a first and second partial capacity includes a first oscillator having a first frequency-determining element connectable to the first partial capacity and a second oscillator having a second frequency-determining element connectable to the second partial capacity; a switching means to switch the first frequency-determining element into a first state or to switch it into a second state, and to switch the second frequency-determining element into a third state or to switch it into a fourth state; read apparatus having a first detection means connected to the first oscillator; and an evaluation means which carries out a quotient formation to obtain a value indicating a quotient of the first and the second partial capacity.

摘要翻译： 用于读出具有第一和第二部分容量的差分容量的装置包括具有可连接到第一部分容量的第一频率确定元件的第一振荡器和具有可连接到第二部分容量的第二频率确定元件的第二振荡器; 切换装置，用于将第一频率确定元件切换到第一状态或将其切换到第二状态，并将第二频率确定元件切换到第三状态或将其切换到第四状态; 读取装置，具有连接到第一振荡器的第一检测装置; 以及评估装置，其执行商形成以获得指示第一和第二部分容量的商的值。

公开(公告)号：US20060284603A1

公开(公告)日：2006-12-21

申请号：US11425013

申请日：2006-06-19

申请人： OLIVER NEHRIG ,  RUDIGER GANZ

发明人： OLIVER NEHRIG ,  RUDIGER GANZ

IPC分类号： H02J7/00

CPC分类号： G01D5/24 ,  G01L9/12 ,  G01R27/2605

摘要： A method of capacitance-to-voltage conversion with an external sensor capacitor (CP) and a capacitance-to-voltage converter (14) implemented on an integrated readout circuit that includes a reference capacitor (CR), a sampling capacitor (CS) and a sampling amplifier (22) and which has input terminals (16) to which the sensor capacitor (CP) is connected. The method comprises the steps of a) applying a reference voltage (Vref) to the series connected sensor capacitor (CP) and reference capacitor (CR) and charging the sampling capacitor (CS) to the potential at the interconnection node (A) between the sensor capacitor (CP) and the reference capacitor (CR), b) connecting the sampling capacitor (CS) to inputs of the sampling amplifier. The method further comprises the steps of c) applying the reference voltage (Vref) to the series connected sensor capacitor (CP) and reference capacitor (CR) with a polarity opposite to that in step a) and charging the sampling capacitor (CS) to the potential at the interconnection node (A) between the sensor capacitor (CP) and the reference capacitor (CR) and d) connecting the sampling capacitor (CS) to the inputs of the sampling amplifier in a polarity opposite to that in step b).

摘要翻译： 一种在包括参考电容器（C'）的集成读出电路上实现的外部传感器电容器（C SUB）和电容 - 电压转换器（14）进行电容 - 电压转换的方法， 采样电容器（C SUB）和采样放大器（22），并具有输入端子（16），传感器电容器（C＆amp; P＆lt; / SUB>）。 该方法包括以下步骤：a）向串联连接的传感器电容器（C SUB）和参考电容器（C SUB）施加参考电压（V SUB） / SUB>），并且将采样电容器（C SUB S S）充电到传感器电容器（C SUB）和参考电容器（C）之间的互连节点（A）处的电位 C），b）将采样电容器（C SUB S）连接到采样放大器的输入端。 该方法还包括以下步骤：c）将参考电压（V SUB ref）应用于串联连接的传感器电容器（C SUB）和参考电容器（C SUB） 具有极性与步骤a）相反的极性，并且将采样电容器（C SUB S）充电到传感器电容器（C SUB）之间的互连节点（A）处的电位， P）和参考电容器（C SUB R），以及d）将采样电容器（C SUB S S）连接到采样放大器的输入端，极性相反 到步骤b）中的步骤。

公开(公告)号：US08886123B2

公开(公告)日：2014-11-11

申请号：US12722391

申请日：2010-03-11

申请人： Oliver Nehrig ,  Carlo Peschke

发明人： Oliver Nehrig ,  Carlo Peschke

IPC分类号： H04B7/00 ,  H02J17/00

CPC分类号： H02J50/12 ,  H02J17/00 ,  H02J50/80

摘要： An electronic device is provided that is adapted to generate a supply voltage at an input node from a radio frequency (RF) signal. The electronic device includes a limiter coupled to the input node for limiting a supply voltage level at the input node that is generated by the received RF signal. The limiter is configured to draw a limiter current from the input node so as to limit the supply voltage level to a maximum and a magnitude of the limiter current is used for controlling a power consumption of the electronic device.

摘要翻译： 提供了一种电子设备，其适于在射频（RF）信号的输入节点处产生电源电压。 电子设备包括耦合到输入节点的限幅器，用于限制由接收的RF信号产生的输入节点处的电源电压电平。 限制器被配置为从输入节点绘制限幅器电流，以便将电源电压电平限制到最大值，并且限制器电流的大小用于控制电子设备的功耗。

公开(公告)号：US08415956B2

公开(公告)日：2013-04-09

申请号：US12645029

申请日：2009-12-22

申请人： Oliver Nehrig ,  Adolf Baumann ,  Ralph Ledwa

发明人： Oliver Nehrig ,  Adolf Baumann ,  Ralph Ledwa

IPC分类号： G01R31/08 ,  G01R31/04

CPC分类号： G01R31/024

摘要： An electronic device is provided, which includes a current supplying stage which is adapted to supply a first compensation current and a second compensation current to a first wire or a second wire, wherein the first compensation current is determined during a first clock period, when the first wire and the second wire are connected. The second compensation current is determined during a second clock period while the first wire and the second wire are not connected and the magnitude of the second current represents a ratio of a resistance value of the first wire and a resistance value of the second wire.

摘要翻译： 提供了一种电子设备，其包括电流供应级，其适于向第一线或第二线提供第一补偿电流和第二补偿电流，其中在第一时钟周期期间确定第一补偿电流， 第一根线和第二条线连接。 第二补偿电流在第二时钟周期期间确定，而第一线和第二线不连接，并且第二电流的大小表示第一线的电阻值与第二线的电阻值的比。

公开(公告)号：US20100253315A1

公开(公告)日：2010-10-07

申请号：US12722391

申请日：2010-03-11

申请人： Oliver Nehrig ,  Carlo Peschke

发明人： Oliver Nehrig ,  Carlo Peschke

IPC分类号： G05F3/02

CPC分类号： H02J50/12 ,  H02J17/00 ,  H02J50/80

摘要： An electronic device is provided that is adapted to generate a supply voltage at an input node from a radio frequency (RF) signal. The electronic device includes a limiter coupled to the input node for limiting a supply voltage level at the input node that is generated by the received RF signal. The limiter is configured to draw a limiter current from the input node so as to limit the supply voltage level to a maximum and a magnitude of the limiter current is used for controlling a power consumption of the electronic device.

摘要翻译： 提供了一种电子设备，其适于在射频（RF）信号的输入节点处产生电源电压。 电子设备包括耦合到输入节点的限幅器，用于限制由接收的RF信号产生的输入节点处的电源电压电平。 限制器被配置为从输入节点绘制限幅器电流，以便将电源电压电平限制到最大值，并且限制器电流的大小用于控制电子设备的功耗。