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    Wheel speed sensor with support for indirect tire pressure monitoring
    42.
    发明授权
    Wheel speed sensor with support for indirect tire pressure monitoring 有权
    车轮速度传感器，支持间接轮胎压力监测

    公开(公告)号：US08868290B2

    公开(公告)日：2014-10-21

    申请号：US13734320

    申请日：2013-01-04

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: B60C23/00

    CPC classification number: B60C23/062

    Abstract: The present disclosure relate to an indirect tire pressure monitoring system (TPMS). In some embodiments, the indirect TPMS has magnetic field sensor that detects a modulated magnetic field indicative of one or more resonance parameters of an automobile tire. The magnetic field sensor generates a modulated sensor signal based upon the modulated magnetic field. An analog-to-digital converter (ADC) converts the modulated sensor signal to a digital sensor signal, which is provided to a digital signal processing unit that perform analysis of the digital sensor signal to determine the one or more resonance parameters. A communication interface transmit data corresponding to the one or more resonance parameters to an electronic control unit (ECU).

    Abstract translation: 本公开涉及间接轮胎压力监测系统（TPMS）。 在一些实施例中，间接TPMS具有磁场传感器，其检测指示汽车轮胎的一个或多个谐振参数的调制磁场。 磁场传感器基于调制的磁场产生调制的传感器信号。 模数转换器（ADC）将调制的传感器信号转换成数字传感器信号，数字传感器信号被提供给执行数字传感器信号分析以确定一个或多个谐振参数的数字信号处理单元。 通信接口将对应于一个或多个谐振参数的数据发送到电子控制单元（ECU）。

    WHEEL SPEED SENSOR WITH SUPPORT FOR INDIRECT TIRE PRESSURE MONITORING
    43.
    发明申请
    WHEEL SPEED SENSOR WITH SUPPORT FOR INDIRECT TIRE PRESSURE MONITORING 有权
    车轮速度传感器支持间接轮胎压力监测

    公开(公告)号：US20140195104A1

    公开(公告)日：2014-07-10

    申请号：US13734320

    申请日：2013-01-04

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： Dirk Hammerschmidt

    IPC: B60C23/00

    CPC classification number: B60C23/062

    Abstract: The present disclosure relate to an indirect tire pressure monitoring system (TPMS). In some embodiments, the indirect TPMS has magnetic field sensor that detects a modulated magnetic field indicative of one or more resonance parameters of an automobile tire. The magnetic field sensor generates a modulated sensor signal based upon the modulated magnetic field. An analog-to-digital converter (ADC) converts the modulated sensor signal to a digital sensor signal, which is provided to a digital signal processing unit that perform analysis of the digital sensor signal to determine the one or more resonance parameters. A communication interface transmit data corresponding to the one or more resonance parameters to an electronic control unit (ECU).

    Abstract translation: 本公开涉及间接轮胎压力监测系统（TPMS）。 在一些实施例中，间接TPMS具有磁场传感器，其检测指示汽车轮胎的一个或多个谐振参数的调制磁场。 磁场传感器基于调制的磁场产生调制的传感器信号。 模数转换器（ADC）将调制的传感器信号转换成数字传感器信号，数字传感器信号被提供给执行数字传感器信号分析以确定一个或多个谐振参数的数字信号处理单元。 通信接口将对应于一个或多个谐振参数的数据发送到电子控制单元（ECU）。

    System and Method for Testing a Circuit
    44.
    发明申请
    System and Method for Testing a Circuit 审中-公开
    用于测试电路的系统和方法

    公开(公告)号：US20140009162A1

    公开(公告)日：2014-01-09

    申请号：US13721977

    申请日：2012-12-20

    Applicant: Infineon Technologies AG

    Inventor： Jens BARRENSCHEEN ,  Dirk Hammerschmidt

    IPC: G01R31/327 ,  G01R31/00

    CPC classification number: G01R31/327 ,  G01R31/00 ,  G01R31/007 ,  G01R31/3272

    Abstract: In an embodiment, a device comprises a circuit with at least one circuit element; measurement circuitry capable to test a state of the at least one circuit element during an operation of the circuit, the measurement circuitry comprising a first terminal configured to be coupled to a first node of the circuit via a first capacitor, a second terminal configured to be coupled to a second node of the circuit, wherein the measurement circuitry is configured to determine in situ an operating state of the at least one circuit element based on signals applied by the measurement circuitry to the circuit during the operation of the circuit.

    Abstract translation: 在一个实施例中，装置包括具有至少一个电路元件的电路; 所述测量电路能够在电路的操作期间测试所述至少一个电路元件的状态，所述测量电路包括被配置为经由第一电容器耦合到所述电路的第一节点的第一端子，被配置为 耦合到所述电路的第二节点，其中所述测量电路被配置为基于在所述电路的操作期间基于由所述测量电路施加到所述电路的信号来原地确定所述至少一个电路元件的操作状态。

    Device and method for calibrating a magnetic angle sensor
    45.
    发明授权
    Device and method for calibrating a magnetic angle sensor 有权

    公开(公告)号：US12181310B2

    公开(公告)日：2024-12-31

    申请号：US17740594

    申请日：2022-05-10

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: G01D18/00 ,  G01D5/14

    Abstract: A method for calibrating a magnetic angle sensor includes measuring, for a plurality of angle positions within a 360° rotation of a measurement object, in each case a first sensor signal for a first magnetic field component and a second sensor signal for a second magnetic field component orthogonal to the first magnetic field component, wherein the first and second sensor signals are in each case 360° periodic and representable as a Fourier series with a Fourier component of a fundamental and a Fourier component of a harmonic; determining the Fourier component of the harmonic for the first and second sensor signals based on a difference between a trajectory defined by the measured first and second sensor signals and a circular path; and correcting the angle positions based on the Fourier component of the harmonic determined for the first and second sensor signals.

    Pulse width modulation generated by a sigma delta loop
    47.
    发明授权
    Pulse width modulation generated by a sigma delta loop 有权

    公开(公告)号：US12143127B2

    公开(公告)日：2024-11-12

    申请号：US18166644

    申请日：2023-02-09

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt

    IPC: H03K3/00 ,  H02P27/08 ,  H03K3/017 ,  H03K5/08 ,  H03K7/08 ,  H03M3/00

    Abstract: A sigma delta (SD) pulse-width modulation (PWM) loop includes a loop filter implementing a linear transfer function to generate a loop filter signal, wherein the loop filter is configured to receive an input signal and a first feedback signal and generate the loop filter signal based on the input signal, the first feedback signal, and the linear transfer function; and a hysteresis comparator coupled to an output of the loop filter, the hysteresis comparator configured to receive the loop filter signal and generate a sigma delta PWM signal based on the loop filter signal, wherein the first feedback signal is derived from the sigma delta PWM signal.

    Detection of a discrete positional relationship between a magnetic field generator and a magnetic field sensor arrangement
    49.
    发明授权
    Detection of a discrete positional relationship between a magnetic field generator and a magnetic field sensor arrangement 有权

    公开(公告)号：US11821760B2

    公开(公告)日：2023-11-21

    申请号：US17665850

    申请日：2022-02-07

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt ,  Robert Hermann

    IPC: G01D5/14 ,  G01D5/16

    CPC classification number: G01D5/145 ,  G01D5/16

    Abstract: By a relative movement between an arrangement of at least three magnetic field sensors and a magnetic field generator, different discrete positional relationships can be produced between the same. A first signal is calculated as a first linear combination using at least two of three sensor signals. It is checked whether the first signal uniquely indicates one of the different discrete positional relationships. If yes, it is determined that the arrangement is located in the one discrete positional relationship. If no, a second signal is calculated as a second linear combination using at least two of the three sensor signals, at least one of which differs from the sensor signals used in the calculation of the first signal, and at least the second signal is used to determine in which of the different discrete positional relationships the arrangement is located relative to the magnetic field generator.

    DIVERSE SENSOR MEASUREMENT WITH ANALOG AND DIGITAL OUTPUT
    50.
    发明公开
    DIVERSE SENSOR MEASUREMENT WITH ANALOG AND DIGITAL OUTPUT 审中-公开

    公开(公告)号：US20230305048A1

    公开(公告)日：2023-09-28

    申请号：US18329018

    申请日：2023-06-05

    Applicant: Infineon Technologies AG

    Inventor： Friedrich Rasbornig ,  Dirk Hammerschmidt ,  Bernhard Schaffer ,  Hans-Jörg Wagner

    IPC: G01R31/00 ,  G01R33/00

    CPC classification number: G01R31/005 ,  G01R33/0047

    Abstract: Some described techniques address issues of latency and lengthy processing times associated with conventional redundant sensor measurement systems that rely upon digital transmission protocols by implementing a diverse analog sensor interface architecture. Additional described techniques provide a redundant signaling solution to achieve signaling diversity using a combination of analog and digital sensor interface architectures. The described architectures may advantageously use a number of sensor measurement paths that may be independent of one another or share any suitable number of common components to provide varying levels of redundancy. When redundant analog sensor interface architectures are implemented, the analog interfaces may also provide signal diversity with respect to the use of different types of analog transmission protocols, which may include different signaling interfaces (e.g. differential versus single-ended), different transmission interfaces (e.g. voltage versus current interfaces), and/or the use of different signalization schemes.

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