公开(公告)号：US09467774B2

公开(公告)日：2016-10-11

申请号：US13370920

申请日：2012-02-10

Applicant: Dirk Hammerschmidt ,  Michael Kropfitsch ,  Andreas Wiesbauer

Inventor： Dirk Hammerschmidt ,  Michael Kropfitsch ,  Andreas Wiesbauer

IPC: H04R3/00 ,  H03M3/00 ,  H04R19/04 ,  H04R19/00 ,  H04R19/01

CPC classification number: H04R3/00 ,  H03M3/424 ,  H04R19/005 ,  H04R19/016 ,  H04R19/04 ,  H04R2460/03 ,  H04R2499/11

Abstract: In accordance with embodiment, a method includes amplifying signal provided by a microphone to form an amplified signal. The method also includes converting the amplified signal into a frequency-based signal having a frequency dependent on an amplitude of the amplified signal. The frequency-based signal is converted into a pulse code modulated bitstream.

Abstract translation: 根据实施例，一种方法包括放大由麦克风提供的信号以形成放大信号。 该方法还包括将放大的信号转换成具有取决于放大信号的幅度的频率的基于频率的信号。 基于频率的信号被转换成脉冲编码调制比特流。

公开(公告)号：US09346441B2

公开(公告)日：2016-05-24

申请号：US12889749

申请日：2010-09-24

Applicant: Friedrich Rasbornig ,  Mario Motz ,  Dirk Hammerschmidt ,  Ferdinand Gastinger ,  Bernhard Schaffer ,  Wolfgang Granig

Inventor： Friedrich Rasbornig ,  Mario Motz ,  Dirk Hammerschmidt ,  Ferdinand Gastinger ,  Bernhard Schaffer ,  Wolfgang Granig

IPC: G01R31/3187 ,  B60T8/88 ,  G01D3/08 ,  G01R31/26 ,  G01R31/28 ,  G01R31/00

CPC classification number: B60T8/885 ,  B60T2250/06 ,  B60T2270/406 ,  B60T2270/411 ,  B60T2270/413 ,  G01D3/08 ,  G01R31/007 ,  G01R31/2644 ,  G01R31/2829 ,  G01R31/2856 ,  G01R31/2884 ,  G01R31/3187 ,  H01L2224/13144

Abstract: Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.

Abstract translation: 实施例涉及使用多个信号路径的传感器自我诊断的系统和方法。 在一个实施例中，传感器是磁场传感器，并且系统和/或方法被配置为满足或超过诸如SIL标准的相关安全或其他工业标准。 例如，在单个半导体船上实现的单片集成电路传感器系统可以包括具有用于半导体芯片上的第一传感器信号的第一信号路径的第一传感器设备; 以及第二传感器装置，具有用于半导体芯片上的第二传感器信号的第二信号路径，第二信号路径与第一信号路径不同，其中第一信号路径信号和第二信号路径信号的比较提供传感器系统 自我测试。

公开(公告)号：US09031769B2

公开(公告)日：2015-05-12

申请号：US13603897

申请日：2012-09-05

Applicant: Dirk Hammerschmidt

Inventor： Dirk Hammerschmidt

IPC: F02D41/26 ,  G05F1/10

CPC classification number: F02D41/26 ,  F02D41/266 ,  H04L25/028

Abstract: Some embodiments of the present disclosure relate to a sensor interface module having a linearization module that increase a size of a linear region of a current output from a high-side current source. The disclosed sensor interface module has a reference voltage source configured to generate a reference signal. An output driver stage having a high-side current source and a low-side current source is connected in series at an output node of the sensor interface module. A closed control loop configured to receive the reference signal and to generate a digital control signal that drives the high-side current source. A linearization module configured to operate the low-side current source to approximate a nonlinearity of the high-side current source and to use the approximated nonlinearity to generate a compensation function that mitigates nonlinearities in the high side current source.

Abstract translation: 本公开的一些实施例涉及具有线性化模块的传感器接口模块，其增加来自高侧电流源的电流输出的线性区域的尺寸。 所公开的传感器接口模块具有被配置为产生参考信号的参考电压源。 在传感器接口模块的输出节点处串联连接具有高侧电流源和低侧电流源的输出驱动级。 闭合控制回路，被配置为接收参考信号并产生驱动高侧电流源的数字控制信号。 线性化模块，被配置为操作低侧电流源以近似高侧电流源的非线性并且使用近似非线性来产生减轻高侧电流源中的非线性的补偿函数。

公开(公告)号：US08994526B2

公开(公告)日：2015-03-31

申请号：US13212463

申请日：2011-08-18

Applicant: Dirk Hammerschmidt

Inventor： Dirk Hammerschmidt

IPC: G08B1/08 ,  H03K5/22 ,  H04Q9/00

CPC classification number: H03K5/22 ,  H04Q9/00 ,  H04Q2209/30 ,  H04Q2209/88

Abstract: Some embodiments of the present disclosure relate to a sensor interface module. The sensor interface module includes a comparator having a first comparator input, a second comparator input, and a comparator output. A current- or voltage-control element has a control terminal coupled to the comparator output and also has an output configured to deliver a modulated current or modulated voltage signal to an output of the sensor interface module. A first feedback path couples the output of the current- or voltage-control element to the first comparator input. A summation element has a first summation input, a second summation input, and a summation output, wherein the summation output is coupled to the second comparator input. A supply voltage module provides a supply voltage signal to the first summation input. A second feedback path couples the comparator output to the second summation input.

Abstract translation: 本公开的一些实施例涉及传感器接口模块。 传感器接口模块包括具有第一比较器输入，第二比较器输入和比较器输出的比较器。 电流或电压控制元件具有耦合到比较器输出的控制端，并且还具有被配置为将调制电流或调制电压信号传递到传感器接口模块的输出的输出。 第一反馈路径将电流或电压控制元件的输出耦合到第一比较器输入端。 求和元件具有第一求和输入，第二求和输入和求和输出，其中求和输出耦合到第二比较器输入。 电源电压模块向第一求和输入提供电源电压信号。 第二反馈路径将比较器输出耦合到第二求和输入。

公开(公告)号：US08710963B2

公开(公告)日：2014-04-29

申请号：US13046891

申请日：2011-03-14

Applicant: Dirk Hammerschmidt

Inventor： Dirk Hammerschmidt

IPC: G05B11/01

CPC classification number: H04B1/1607 ,  H04B3/546 ,  H04L25/02 ,  H04L25/028 ,  H04L25/0292

Abstract: A receiver for receiving messages from a transmitter includes a controller and a driver stage for providing a supply voltage to the transmitter based on a control signal. The controller is configured to provide the control signal to compensate for changes of the supply voltage caused by a modulation of the current consumption of the transmitter, such that the supply voltage remains in a predefined range. Furthermore, the controller is configured to evaluate a series of succeeding values of the control signal to derive a message generated by the transmitter by modulating its current consumption.

Abstract translation: 用于从发射机接收消息的接收机包括控制器和用于基于控制信号向发射机提供电源电压的驱动级。 控制器被配置为提供控制信号以补偿由调制发射器的电流消耗引起的电源电压的变化，使得电源电压保持在预定范围内。 此外，控制器被配置为评估控制信号的一系列后续值，以通过调制其当前消耗来导出由发射机产生的消息。

公开(公告)号：US08660489B2

公开(公告)日：2014-02-25

申请号：US12696995

申请日：2010-01-29

Applicant: Jens Barrenscheen ,  Dirk Hammerschmidt

Inventor： Jens Barrenscheen ,  Dirk Hammerschmidt

IPC: H04B7/00

CPC classification number: H04B5/0031 ,  G08C17/06 ,  H01L2224/48137 ,  H01L2924/181 ,  H01L2924/00012

Abstract: In one embodiment, A system for communication has a receiver for receiving data from a passive transmitter capacitively coupled to the receiver. The receiver has a sensing element having a plurality of terminals configured to be capacitively coupled to the passive transmitter and DC isolated from the passive transmitter.

Abstract translation: 在一个实施例中，用于通信的系统具有用于从电容耦合到接收器的无源发射器接收数据的接收器。 接收器具有感测元件，其具有多个终端，其被配置为电容耦合到无源发射器和与被动发射器隔离的DC。

公开(公告)号：US08638090B2

公开(公告)日：2014-01-28

申请号：US13613933

申请日：2012-09-13

Applicant: Dirk Hammerschmidt ,  Juergen Zimmer

Inventor： Dirk Hammerschmidt ,  Juergen Zimmer

IPC: G01R33/06

CPC classification number: G01R33/06 ,  B82Y25/00 ,  G01R33/093 ,  H01L27/22 ,  H01L41/47

Abstract: A sensor system method of production includes forming first and second structures of the magnetoresistive system, heating the first and second structures, applying a magnetic field in a reference direction to the first and second structures, and cooling the first and second structures to fix a reference magnetization in the first and second structures in the reference direction. The structures are heated to near or above a blocking temperature, whereby the shape anisotropy of the first structure forces the reference magnetization to rotate into a first new orientation and the shape anisotropy of the second structure forces the reference magnetization to rotate into a second new orientation whereby the reference magnetization in the first and second structures rotate in opposite directions. The rotated reference magnetizations of the first and second structures are pinned in the respective new orientation.

Abstract translation: 传感器系统的生产方法包括形成磁阻系统的第一和第二结构，加热第一和第二结构，沿着参考方向对第一和第二结构施加磁场，以及冷却第一和第二结构以固定基准 第一和第二结构在参考方向上的磁化。 将结构加热到接近或高于阻塞温度，由此第一结构的形状各向异性迫使参考磁化旋转成第一新取向，并且第二结构的形状各向异性迫使参考磁化转动成第二新取向 由此第一和第二结构中的基准磁化沿相反方向旋转。 旋转的第一和第二结构的参考磁化固定在相应的新取向中。

公开(公告)号：US20130241537A1

公开(公告)日：2013-09-19

申请号：US13613933

申请日：2012-09-13

Applicant: Dirk Hammerschmidt ,  Juergen Zimmer

Inventor： Dirk Hammerschmidt ,  Juergen Zimmer

IPC: G01R33/06 ,  H01L41/47

CPC classification number: G01R33/06 ,  B82Y25/00 ,  G01R33/093 ,  H01L27/22 ,  H01L41/47

Abstract: A sensor system method of production includes forming first and second structures of the magnetoresistive system, heating the first and second structures, applying a magnetic field in a reference direction to the first and second structures, and cooling the first and second structures to fix a reference magnetization in the first and second structures in the reference direction. The structures are heated to near or above a blocking temperature, whereby the shape anisotropy of the first structure forces the reference magnetization to rotate into a first new orientation and the shape anisotropy of the second structure forces the reference magnetization to rotate into a second new orientation whereby the reference magnetization in the first and second structures rotate in opposite directions. The rotated reference magnetizations of the first and second structures are pinned in the respective new orientation.

Abstract translation: 传感器系统的生产方法包括形成磁阻系统的第一和第二结构，加热第一和第二结构，沿着参考方向对第一和第二结构施加磁场，以及冷却第一和第二结构以固定基准 第一和第二结构在参考方向上的磁化。 将结构加热到接近或高于阻塞温度，由此第一结构的形状各向异性迫使参考磁化旋转成第一新取向，并且第二结构的形状各向异性迫使参考磁化转动成第二新取向 由此第一和第二结构中的基准磁化沿相反方向旋转。 旋转的第一和第二结构的参考磁化固定在相应的新取向中。

公开(公告)号：US20130136267A1

公开(公告)日：2013-05-30

申请号：US13305572

申请日：2011-11-28

Applicant: Dirk Hammerschmidt ,  Michael Kropfitsch ,  Andreas Wiesbauer

Inventor： Dirk Hammerschmidt ,  Michael Kropfitsch ,  Andreas Wiesbauer

IPC: H04R29/00 ,  H04R3/00

CPC classification number: H04R3/06 ,  H04R19/005 ,  H04R29/004

Abstract: A microphone and a method for calibrating a microphone are disclosed. In one embodiment the method for calibrating a microphone comprises operating a MEMS device based on a first AC bias voltage, measuring a pull-in voltage, calculating a second AC bias voltage or a DC bias voltage, and operating the MEMS device based the second AC bias voltage or the DC bias voltage.

Abstract translation: 公开了麦克风和用于校准麦克风的方法。 在一个实施例中，用于校准麦克风的方法包括基于第一AC偏置电压操作MEMS器件，测量引入电压，计算第二AC偏置电压或DC偏置电压，以及基于第二AC操作MEMS器件 偏置电压或直流偏置电压。

公开(公告)号：US20130033357A1

公开(公告)日：2013-02-07

申请号：US13197288

申请日：2011-08-03

Applicant: Dirk Hammerschmidt

Inventor： Dirk Hammerschmidt

IPC: G05B23/02

CPC classification number: G05B19/0423 ,  H02M3/33515 ,  H03M1/56 ,  H04Q9/00 ,  H04Q2209/80

Abstract: The present disclosure is directed towards a sensor interface module that delivers a supply voltage to a plurality of sensors, and which exchanges data signals between the plurality of sensors and a control unit (e.g., an ECU). The sensor interface often employs a single-bit comparator (or a coarse analog to digital converter (ADC), e.g., a 2-bit or 3-bit ADC) to track signals to be exchanged between the sensors and controller over the sensor interface. Compared to power hungry ADC with more bits (e.g., 32 bit ADC), the single-bit comparator/coarse ADC limits hardware complexity and power consumption. In addition, in some embodiments the sensor interface module can include an estimator and assist comparators to speed up the tracking ability of the sensor interface module. In this way, techniques provided herein facilitate reliable, low-power communication between a control unit (e.g., an ECU) and its corresponding sensors.

Abstract translation: 本公开针对传感器接口模块，其向多个传感器传送电源电压，并且在多个传感器与控制单元（例如，ECU）之间交换数据信号。 传感器接口通常采用单比特比较器（或粗略的模数转换器（ADC），例如2位或3位ADC）来跟踪通过传感器接口传感器和控制器之间要交换的信号。 与功耗更大的ADC（例如32位ADC）相比，单比特比较器/粗略ADC限制了硬件复杂性和功耗。 此外，在一些实施例中，传感器接口模块可以包括估计器和辅助比较器，以加速传感器接口模块的跟踪能力。 以这种方式，本文提供的技术便于控制单元（例如，ECU）与其对应的传感器之间的可靠的低功率通信。