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公开(公告)号：US08374817B2
公开(公告)日：2013-02-12
申请号：US12594244
申请日：2008-03-27
IPC分类号： G01C17/38
CPC分类号： G01C17/38
摘要： An electronic device has an orientation sensing system for determining an orientation of the device. The system includes a magnetometer and an accelerometer. The system further has a calibration device configured to calibrate the sensing system for operational use. The accelerometer supplies measurements used to constrain a range of possible directions of the external magnetic field to be determined. The calibration device numerically solves a set of equations and is equally usable for a 2D or 3D magnetometer in combination with a 2D or 3D accelerometer.
摘要翻译： 电子设备具有用于确定设备的取向的定向感测系统。 该系统包括磁力计和加速度计。 该系统还具有被配置为校准感测系统以用于操作使用的校准装置。 加速度计提供用于限制要确定的外部磁场的可能方向的范围的测量。 校准装置以数字方式解决一组方程式，并且可与2D或3D加速度计结合使用的二维或三维磁强计同样适用。
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公开(公告)号：US07818890B2
公开(公告)日：2010-10-26
申请号：US12516173
申请日：2007-11-20
IPC分类号： G01B17/30
CPC分类号： G01R33/093 , B82Y25/00 , G01R33/096
摘要： A magnetic field sensor circuit comprises a first magneto-resistive sensor (Rx) which senses a first magnetic field component in a first direction to supply a first sense signal (Vx). A first flipping coil (FC1) applies a first flipping magnetic field with a periodically changing polarity to the first magneto-resistive sensor (Rx) to cause the first sense signal (Vx) to have alternating different levels synchronized with the first flipping magnetic field. A second magneto -resistive sensor (Ry) senses a second magnetic field component in a second direction different than the first direction to supply a second sense signal (Vy). A second flipping coil (FC2) applies a second flipping magnetic field with a periodically changing polarity to the second magneto -resistive sensor (Ry) to cause the second sense signal (Vy) to have an alternating different levels synchronized with the second flipping magnetic field. The first flipping magnetic field and the second flipping magnetic field have a phase shift. A differential amplifier (AMP1) receives the first sense signal (Vx) and the second sense signal (Vy) to obtain a difference signal (Vd). A first synchronous demodulator (DEM1) receives the difference signal (Vd) and a first switching signal (Q1) being phase locked to the alternating different levels of the first sense signal (Vx) to supply a first output signal (Vox) indicating the first magnetic field component. A second synchronous demodulator (DEM2) receives the difference signal (Vd) and a second switching signal (Q2) being phase locked to the alternating different levels of the second sense signal (Vy) to supply a second output signal (Voy) indicating the second magnetic field component.
摘要翻译： 磁场传感器电路包括第一磁阻传感器（Rx），其感测第一方向上的第一磁场分量以提供第一感测信号（Vx）。 第一翻转线圈（FC1）将具有周期性变化的极性的第一翻转磁场施加到第一磁阻传感器（Rx），以使第一感测信号（Vx）具有与第一翻转磁场同步的交替的不同级别。 第二磁阻传感器（Ry）在与第一方向不同的第二方向上感测第二磁场分量以提供第二感测信号（Vy）。 第二翻转线圈（FC2）将具有周期性变化的极性的第二翻转磁场施加到第二磁阻传感器（Ry），以使第二感测信号（Vy）具有与第二翻转磁场同步的交替的不同级别 。 第一翻转磁场和第二翻转磁场具有相移。 差分放大器（AMP1）接收第一感测信号（Vx）和第二感测信号（Vy）以获得差分信号（Vd）。 第一同步解调器（DEM1）接收差分信号（Vd）和第一切换信号（Q1）被锁相到第一感测信号（Vx）的交替不同电平，以提供表示第一感测信号（Vox）的第一输出信号 磁场分量。 第二同步解调器（DEM2）接收差分信号（Vd）和相位锁定到第二感测信号（Vy）的交替不同电平的第二切换信号（Q2），以提供指示第二感测信号（Vy）的第二输出信号（Voy） 磁场分量。
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公开(公告)号：US20100121599A1
公开(公告)日：2010-05-13
申请号：US12594244
申请日：2008-03-27
CPC分类号： G01C17/38
摘要： An electronic device has an orientation sensing system for determining an orientation of the device. The system comprises a magnetometer and an accelero meter. The system further has calibration means to calibrate the sensing system for operational use. The accelerometer supplies measurements used to constrain a range of possible directions of the external magnetic field to be determined. The calibration means numerically solves a set of equations and is equally well useable for a 2D or 3D magnetometer in combination with a 2D or 3D accelerometer.
摘要翻译： 电子设备具有用于确定设备的取向的定向感测系统。 该系统包括磁力计和加速度计。 该系统还具有用于校准用于操作使用的感测系统的校准装置。 加速度计提供用于限制要确定的外部磁场的可能方向的范围的测量。 校准装置在数值上解决了一组方程，并且与2D或3D加速度计结合使用的二维或三维磁强计同样适用。
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公开(公告)号：US20100053789A1
公开(公告)日：2010-03-04
申请号：US12516173
申请日：2007-05-27
CPC分类号： G01R33/093 , B82Y25/00 , G01R33/096
摘要： A magnetic field sensor circuit comprises a first magneto-resistive sensor (Rx) which senses a first magnetic field component in a first direction to supply a first sense signal (Vx). A first flipping coil (FC1) applies a first flipping magnetic field with a periodically changing polarity to the first magneto-resistive sensor (Rx) to cause the first sense signal (Vx) to have alternating different levels synchronized with the first flipping magnetic field. A second magneto -resistive sensor (Ry) senses a second magnetic field component in a second direction different than the first direction to supply a second sense signal (Vy). A second flipping coil (FC2) applies a second flipping magnetic field with a periodically changing polarity to the second magneto -resistive sensor (Ry) to cause the second sense signal (Vy) to have an alternating different levels synchronized with the second flipping magnetic field. The first flipping magnetic field and the second flipping magnetic field have a phase shift. A differential amplifier (AMP1) receives the first sense signal (Vx) and the second sense signal (Vy) to obtain a difference signal (Vd). A first synchronous demodulator (DEM1) receives the difference signal (Vd) and a first switching signal (Q1) being phase locked to the alternating different levels of the first sense signal (Vx) to supply a first output signal (Vox) indicating the first magnetic field component. A second synchronous demodulator (DEM2) receives the difference signal (Vd) and a second switching signal (Q2) being phase locked to the alternating different levels of the second sense signal (Vy) to supply a second output signal (Voy) indicating the second magnetic field component.
摘要翻译： 磁场传感器电路包括第一磁阻传感器（Rx），其感测第一方向上的第一磁场分量以提供第一感测信号（Vx）。 第一翻转线圈（FC1）将具有周期性变化的极性的第一翻转磁场施加到第一磁阻传感器（Rx），以使第一感测信号（Vx）具有与第一翻转磁场同步的交替的不同级别。 第二磁阻传感器（Ry）在与第一方向不同的第二方向上感测第二磁场分量以提供第二感测信号（Vy）。 第二翻转线圈（FC2）将具有周期性变化的极性的第二翻转磁场施加到第二磁阻传感器（Ry），以使第二感测信号（Vy）具有与第二翻转磁场同步的交替的不同级别 。 第一翻转磁场和第二翻转磁场具有相移。 差分放大器（AMP1）接收第一感测信号（Vx）和第二感测信号（Vy）以获得差分信号（Vd）。 第一同步解调器（DEM1）接收差分信号（Vd）和第一切换信号（Q1）被锁相到第一感测信号（Vx）的交替不同电平，以提供表示第一感测信号（Vox）的第一输出信号 磁场分量。 第二同步解调器（DEM2）接收差分信号（Vd）和相位锁定到第二感测信号（Vy）的交替不同电平的第二切换信号（Q2），以提供指示第二感测信号（Vy）的第二输出信号（Voy） 磁场分量。
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公开(公告)号：US10052048B2
公开(公告)日：2018-08-21
申请号：US12989484
申请日：2009-05-04
申请人： Jasper Klewer , Haris Duric , Teunis Jan Ikkink
发明人： Jasper Klewer , Haris Duric , Teunis Jan Ikkink
CPC分类号： A61B5/113 , A61B5/0816 , A61B7/003 , A61B2562/0219 , H04B17/0085
摘要： A respiratory monitor comprises: a first sensor (20, 70) configured to generate a respiration-related motion monitoring signal (72) indicative of respiration related motion; a second sensor (20, 22, 80, 82) configured to generate a sound monitoring signal (84) indicative of respiration-related sound; and a signals synthesizer (90) configured to synthesize a respiratory monitor signal (46) based on the respiration-related motion monitoring signal and the respiration-related sound monitoring signal. A sensor for use in respiratory monitoring comprises an accelerometer (30) and a magnetometer (32) together defining a unitary sensor (20) configured for attachment to a respiring subject (10) so as to move as a unit responsive to respiration related motion of the respiring subject.
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公开(公告)号：US09510775B2
公开(公告)日：2016-12-06
申请号：US13320029
申请日：2010-06-02
CPC分类号： A61B5/1102 , A61B5/1135 , A61B2562/0219
摘要： The invention relates to a motion determination apparatus for determining motion of a moving object, wherein the motion determination apparatus (1) comprises a multi-axial accelerometer (2) for being positioned at the moving object (4), wherein the multi-axial accelerometer (2) is adapted to generate accelerometer signals indicative of the acceleration along different spatial axes. The motion determination apparatus further comprises a motion signal generation unit (3) for generating a motion signal indicative of the motion of the object (4) by combining the accelerometer signals of different spatial axes. The combination of the accelerometer signals of different spatial axes yields a motion signal having a large signal-to-noise ratio, even if an axis is located close to a rotational axis of the movement.
摘要翻译： 本发明涉及一种用于确定运动物体的运动的运动确定装置，其中运动确定装置（1）包括用于定位在运动物体（4）处的多轴加速度计（2），其中多轴加速度计 （2）适于产生指示沿着不同空间轴的加速度的加速度计信号。 运动判定装置还包括运动信号生成单元（3），用于通过组合不同空间轴的加速度计信号来产生指示对象（4）的运动的运动信号。 即使轴线位于运动的旋转轴线附近，不同空间轴的加速度计信号的组合产生具有大的信噪比的运动信号。
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公开(公告)号：US20130116602A1
公开(公告)日：2013-05-09
申请号：US13810913
申请日：2011-07-12
申请人： Teun Van Den Heuvel , Haris Duric
发明人： Teun Van Den Heuvel , Haris Duric
CPC分类号： A61B5/1116 , A61B5/1126 , A61B5/6801 , A61B5/6823 , A61B5/686 , A61B5/7246 , A61B2562/0219 , A61N1/36542 , A61N1/37
摘要： In order to eliminate the need of tiresome and complex calibration procedures for posture-detecting devices, means are provided for determining an orientation of a body-mounted or implanted device (1) relative to the body (2), the device (1) having an orientation detection unit, wherein an uncontrolled output of the orientation detection unit over a period of time together with one or more reference conditions defined in a body reference system (xb, yb, zb) are used for determining the relative orientation of the device and hence for calibration.
摘要翻译： 为了消除对于姿势检测装置的烦琐和复杂的校准程序的需要，提供了用于确定相对于身体（2）的身体安装或植入的装置（1）的取向的装置，所述装置（1）具有 方位检测单元，其中在一段时间内定向检测单元的不受控制输出以及在体参考系统（xb，yb，zb）中定义的一个或多个参考条件被用于确定装置的相对定向，以及 因此用于校准。
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8.发明申请公开(公告)号：US20090237844A1
公开(公告)日：2009-09-24
申请号：US12299777
申请日：2007-04-27
IPC分类号： G11B5/33
CPC分类号： G01R33/12 , G01N2015/0065 , G01R33/09 , G01R33/1269 , G01R33/1276
摘要： A magnetic sensor device (300) for sensing magnetic particles (15), the magnetic sensor device (300) comprising a magnetic field generator unit (12) adapted for generating a magnetic field, an excitation signal source (302) adapted for supplying the magnetic field generator unit (12) with a static electric excitation signal, an excitation switch unit (303) adapted for switching between different modes of electrically coupling the excitation signal source (302) to the magnetic field generator unit (12), and a sensing unit (11) adapted for sensing a signal indicative of the presence of the magnetic particles (15) in the generated magnetic field.
摘要翻译： 一种用于感测磁性颗粒的磁传感器装置（300），所述磁传感器装置（300）包括适于产生磁场的磁场发生器单元（12），适于提供磁场的激励信号源（302） 具有静电激励信号的场发生器单元（12），适于在激励信号源（302）与磁场发生器单元（12）电耦合的不同模式之间切换的激励开关单元（303），以及感测单元 （11）适于感测指示所述磁性颗粒（15）在所产生的磁场中的存在的信号。
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公开(公告)号：US20090066318A1
公开(公告)日：2009-03-12
申请号：US12282889
申请日：2007-03-06
申请人： Josephus Arnoldus Henricus Maria Kahlman , Albert Hendrik Jan Immink , Haris Duric , Adrianus Johannes Maria Van Tuijl , Eugenio Cantatore , Hendrik Johannes Bergveld
发明人： Josephus Arnoldus Henricus Maria Kahlman , Albert Hendrik Jan Immink , Haris Duric , Adrianus Johannes Maria Van Tuijl , Eugenio Cantatore , Hendrik Johannes Bergveld
IPC分类号： G01N27/74
CPC分类号： G01N33/54333 , B82Y25/00 , G01N27/745 , G01N2446/00 , G01R33/09 , G01R33/093 , G01R33/12 , G01R33/1269
摘要： The invention relates to a magnetic sensor device comprising excitation wires (11, 13) for generating a magnetic excitation field and a magnetic sensor element, particularly a GMR sensor (12), for sensing magnetic fields generated by labeling particles in reaction to the excitation field. The magnetic excitation fields are generated with non-sinusoidal forms, particularly as square-waves, such that their spectral range comprises a plurality of frequency components. Magnetic particles with different magnetic response characteristics can then be differentiated according to their reactions to the different frequency components of the excitation fields. The magnetic excitation field and the sensing current driving the GMR sensor (12) are preferably generated with the help of ring modulators (22, 24). Moreover, ring modulators (27, 29) may be used for the demodulation of the sensor signal.
摘要翻译： 本发明涉及一种包括用于产生磁场的激励线（11,13）和磁传感器元件（特别是GMR传感器）的磁传感器装置，用于感测通过与激发场反应来标记颗粒而产生的磁场 。 磁激励场以非正弦形式产生，特别是作为方波产生，使得它们的光谱范围包括多个频率分量。 然后可以根据其对激发场的不同频率分量的反应来区分具有不同磁响应特性的磁性颗粒。 驱动GMR传感器（12）的磁激励场和感测电流优选地通过环形调制器（22,24）的产生。 此外，环形调制器（27,29）可以用于解调传感器信号。
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公开(公告)号：US08542009B2
公开(公告)日：2013-09-24
申请号：US12990986
申请日：2009-05-04
CPC分类号： G01N27/74 , G01R33/091
摘要： In an embodiment, an oxygen sensor comprises a giant magnetoresistance device (10), and a magnetic field generator (14, 14a, 14b) arranged to generate a magnetic field (12, 12a, 12b) overlapping the giant magnetoresistance device and an examination region (20). A component (Bx) of the magnetic field detected by the giant magnetoresistance device is dependent upon an oxygen concentration in the examination region. In an embodiment, a chip (40) includes one or more electrically conductive traces (14a, 14b) disposed on or in the chip and a giant magnetoresistance device (10) disposed on or in the chip such that electrical current flowing in the trace or traces generates a magnetic field (12a, 12b) that overlaps the magnetic field sensor, said magnetic field being perturbed (Bx) by ambient oxygen (24) such that a signal output by the magnetic field sensor indicates ambient oxygen concentration.
摘要翻译： 在一个实施例中，氧传感器包括巨磁电阻装置（10）和布置成产生与巨磁电阻装置重叠的磁场（12,12a，12b）的磁场发生器（14,14a，14b）和检查区 （20）。 由巨磁电阻装置检测的磁场的分量（Bx）取决于检查区域中的氧浓度。 在一个实施例中，芯片（40）包括设置在芯片上或芯片中的一个或多个导电迹线（14a，14b）和设置在芯片上或芯片上的巨磁电阻器件（10），使得流过迹线或 轨迹产生与磁场传感器重叠的磁场（12a，12b），所述磁场被环境氧（24）扰动（Bx），使得由磁场传感器输出的信号表示环境氧浓度。
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