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1.发明授权Magnetic field sensors and related techniques provide a self-test by communicating selected analog or digital samples of a proximity signal 有权磁场传感器和相关技术通过传递接近信号的选定模拟或数字采样来提供自检公开(公告)号：US09068859B2
公开(公告)日：2015-06-30
申请号：US13526103
申请日：2012-06-18
摘要： Magnetic field sensors and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. A magnetic field sensor used in the techniques can have a substrate and can have one or more magnetic field sensing elements disposed on the substrate that are configured to generate a proximity signal responsive to a proximity of the sensed object. The magnetic field sensor can have a self-test module disposed on the substrate, coupled to receive the proximity signal, configured to sample the proximity signal, by analog sampling or digitally converting, to generate a plurality of analog samples or a plurality of digital samples, respectively, each digital sample comprising a plurality of digital bits, configured to select samples from among the plurality of analog or digital samples, and configured to communicate the selected samples to outside of the magnetic field sensor.
摘要翻译： 磁场传感器和相关技术可以识别感测物体的通过条件，故障条件和边缘条件。 在技术中使用的磁场传感器可以具有衬底并且可以具有设置在衬底上的一个或多个磁场感测元件，其被配置为响应于感测对象的接近度而产生接近信号。 磁场传感器可以具有设置在衬底上的自检模块，耦合以接收接近信号，其被配置为通过模拟采样或数字转换来对接近信号进行采样，以产生多个模拟样本或多个数字采样 每个数字采样包括多个数字位，其被配置为从所述多个模拟或数字样本中选择样本，并且被配置为将所选择的采样传送到所述磁场传感器外部。
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2.发明申请Magnetic Field Sensors And Related Techniques That Can Provide A Self-Test Using Signals And Related Thresholds 有权可以使用信号和相关阈值提供自检的磁场传感器和相关技术公开(公告)号：US20130335068A1
公开(公告)日：2013-12-19
申请号：US13526113
申请日：2012-06-18
IPC分类号： G01R35/00
CPC分类号： G01D5/147 , G01R33/072
摘要： Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the object, DC offset values of the proximity signal, or threshold values related to an amplitude of a signal representative of the proximity signal to identify the conditions.
摘要翻译： 磁场传感器和相关技术可以识别感测对象的通过条件，故障条件和边缘条件。 磁场传感器和技术可以使用表示物体接近度的接近信号的一个或多个峰值，接近信号的DC偏移值或与表示接近信号的信号的幅度相关的阈值，以识别 条件。
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公开(公告)号：US06278269B1
公开(公告)日：2001-08-21
申请号：US09264254
申请日：1999-03-08
IPC分类号： G01B714
CPC分类号： H03K17/9517 , G01B7/001 , G01B7/023
摘要： A magnet structure including a magnet and an integral magnetically permeable concentrator and methods for making the same are provided. In one embodiment, the concentrator has a substantially planar base and a post extending normal to the base and the magnetic element is a ring magnet having a central aperture through which the concentrator post extends. The concentrator is comprised of a plastic loaded with one or more magnetically permeable materials to a percentage suitable for providing desired magnetic field characteristics. The magnetic element may be comprised of a conventional magnetic material or a plastic loaded with one or more magnetic materials. An insert molding technique is described in which either the concentrator or magnetic element is prefabricated and inserted into a mold which is subsequently filled with a loaded plastic to provide the other component of the magnet structure. In an alternate fabrication technique, both the concentrator and magnet are sequentially formed by injection molding in the same mold. Also described is a magnet structure including a ring magnet having a central aperture in which a steel rod is disposed.
摘要翻译： 提供了一种包括磁体和一体磁导式集中器的磁体结构及其制造方法。 在一个实施例中，集中器具有基本上平坦的基部和垂直于基部延伸的柱，并且磁性元件是具有中心孔的环形磁体，集中器柱延伸穿过该中心孔。 浓缩器由装有一种或多种导磁材料的塑料组成，其百分比适用于提供所需的磁场特性。 磁性元件可以由传统的磁性材料或装有一种或多种磁性材料的塑料构成。 描述了嵌入成型技术，其中将集中器或磁性元件预制并插入模具中，随后用模制的塑料填充以提供磁体结构的另一部件。 在替代的制造技术中，集中器和磁体都通过在相同的模具中注塑而顺序地形成。 还描述了一种磁体结构，其包括具有设置钢棒的中心孔的环形磁体。
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4.发明授权Magnetic field sensors and related techniques that can communicate at least one of three or more potential categories in which one or more characteristic values of a proximity signal responsive to a proximity of a sensed object are categorized 有权磁场传感器和相关技术可以通信三个或更多个潜在类别中的至少一个，其中响应于感测对象的接近度的接近信号的一个或多个特征值被分类公开(公告)号：US09222990B2
公开(公告)日：2015-12-29
申请号：US13526099
申请日：2012-06-18
CPC分类号： G01R33/02 , G01R33/0029 , G01R33/07
摘要： A method of performing a self-test associated with a magnetic field sensor includes generating a proximity signal responsive to a proximity of a sensed object with one or more magnetic field sensing elements, and identifying one or more characteristic values associated with the proximity signal while the proximity signal is responding to the proximity signal, The method also includes categorizing the one or more characteristic values into three or more potential categories, including three or more categories, wherein the plurality of potential categories is representative of a plurality of discrete self-test states of the proximity signal that could occur while the proximity signal is responding to the proximity of the sensed object. The method also includes communicating at least one of the plurality of potential categories into which at least one of the one or more characteristic values was categorized. A magnetic field senor implements the above method.
摘要翻译： 执行与磁场传感器相关联的自检的方法包括响应于感测对象与一个或多个磁场感测元件的接近度而生成接近信号，以及识别与接近信号相关联的一个或多个特征值，同时 接近信号响应于接近信号。该方法还包括将一个或多个特征值分类为三个或更多个潜在类别，包括三个或更多个类别，其中多个潜在类别表示多个离散自检状态 当接近信号响应感测对象的接近时可能发生的接近信号。 所述方法还包括将所述一个或多个特征值中的至少一个分类到所述多个潜在类别中的至少一个进行通信。 磁场传感器实现上述方法。
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5.发明授权Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal 有权基于与磁场信号的先前周期相关联的峰值信号来产生在磁场传感器中使用的阈值信号的电路和方法公开(公告)号：US08723512B1
公开(公告)日：2014-05-13
申请号：US13685287
申请日：2012-11-26
申请人： Eric Burdette , James M. Bailey , Daniel S. Dwyer , Jeff Eagen , Glenn A. Forrest , Christine Graham , Eric Shoemaker , P. Karl Scheller
发明人： Eric Burdette , James M. Bailey , Daniel S. Dwyer , Jeff Eagen , Glenn A. Forrest , Christine Graham , Eric Shoemaker , P. Karl Scheller
IPC分类号： G01B7/30
CPC分类号： G01B7/14 , G01D5/2448 , G01P3/488 , G01P3/489
摘要： A circuit to detect a movement of an object includes a magnetic field sensing element for generating a magnetic field signal proportional to a magnetic field associated with the object and a motion detector to generate a motion signal indicative of the movement of the object. The motion detector includes a peak identifying circuit to provide a peak signal and a peak sample selection module that selects a sample associated with one or more prior cycles of a magnetic field signal to generate a selected peak signal. The motion detector further includes a threshold generator to generate a threshold signal as a function of the selected peak signal and a comparator to compare the threshold signal with the magnetic field signal to generate the motion signal. Peak samples from prior magnetic field signal cycles may be averaged for use to establish the threshold signal. A method associated with the circuit is also described.
摘要翻译： 用于检测物体运动的电路包括用于产生与与物体相关联的磁场成比例的磁场信号的磁场感测元件和运动检测器，以产生指示物体运动的运动信号。 运动检测器包括提供峰值信号的峰值识别电路和峰值采样选择模块，其选择与磁场信号的一个或多个先前循环相关联的采样以产生所选择的峰值信号。 运动检测器还包括阈值产生器，用于根据所选择的峰值信号产生阈值信号;以及比较器，用于将阈值信号与磁场信号进行比较以产生运动信号。 来自先前磁场信号周期的峰值采样可以被平均以用于建立阈值信号。 还描述了与电路相关联的方法。
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6.发明申请Magnetic Field Sensors and Related Techniques That Can Provide Self-Test Information 有权磁场传感器及相关技术可提供自检信息公开(公告)号：US20130335074A1
公开(公告)日：2013-12-19
申请号：US13526099
申请日：2012-06-18
IPC分类号： G01N27/72
CPC分类号： G01R33/02 , G01R33/0029 , G01R33/07
摘要： Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the object, DC offset values of the proximity signal, or threshold values related to an amplitude of a signal representative of the proximity signal to identify the conditions.
摘要翻译： 磁场传感器和相关技术可以识别感测对象的通过条件，故障条件和边缘条件。 磁场传感器和技术可以使用表示物体接近度的接近信号的一个或多个峰值，接近信号的DC偏移值或与表示接近信号的信号的幅度有关的阈值，以识别 条件。
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7.发明申请公开(公告)号：US20130335067A1
公开(公告)日：2013-12-19
申请号：US13526103
申请日：2012-06-18
IPC分类号： G01B7/14
摘要： Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the object, DC offset values of the proximity signal, or threshold values related to an amplitude of a signal representative of the proximity signal to identify the conditions.
摘要翻译： 磁场传感器和相关技术可以识别感测对象的通过条件，故障条件和边缘条件。 磁场传感器和技术可以使用表示物体接近度的接近信号的一个或多个峰值，接近信号的DC偏移值或与表示接近信号的信号的幅度相关的阈值，以识别 条件。
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公开(公告)号：US06692676B1
公开(公告)日：2004-02-17
申请号：US09837991
申请日：2001-04-19
IPC分类号： B29C4514
CPC分类号： H03K17/9517 , G01B7/001 , G01B7/023
摘要： A magnet structure including a magnet and an integral magnetically permeable concentrator and methods for making the same are provided. The concentrator is comprised of a plastic loaded with one or more magnetically permeable materials to a percentage suitable for providing desired magnetic field characteristics. The magnetic element may be comprised of a conventional magnetic material or a plastic loaded with one or more magnetic materials. An insert molding technique is described in which either the concentrator or magnetic element is prefabricated and inserted into a mold which is subsequently filled with a loaded plastic to provide the other component of the magnet structure. In an alternate fabrication technique, both the concentrator and magnet are sequentially formed by injection molding in the same mold. Also described is a magnet structure including a ring magnet having a central aperture in which a steel rod is disposed.
摘要翻译： 提供了一种包括磁体和一体磁导式集中器的磁体结构及其制造方法。 浓缩器由装有一种或多种导磁材料的塑料组成，其百分比适用于提供所需的磁场特性。 磁性元件可以由传统的磁性材料或装有一种或多种磁性材料的塑料构成。 描述了嵌入成型技术，其中将集中器或磁性元件预制并插入模具中，随后用模制的塑料填充以提供磁体结构的另一部件。 在替代的制造技术中，集中器和磁体都通过在相同的模具中注塑而顺序地形成。 还描述了一种磁体结构，其包括具有设置钢棒的中心孔的环形磁体。
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9.发明授权Magnetic field sensors and related techniques that can provide a self-test using signals and related thresholds 有权磁场传感器和相关技术可以使用信号和相关阈值进行自检公开(公告)号：US08860404B2
公开(公告)日：2014-10-14
申请号：US13526113
申请日：2012-06-18
IPC分类号： G01B7/30
CPC分类号： G01D5/147 , G01R33/072
摘要： Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the sensed object, can generate one or more difference values representative of difference between the peak values of the proximity signal and threshold values of a threshold signal proportional to the peak values, can categorize the one or more difference values into a plurality of potential categories, wherein at least one of the plurality of potential categories is representative of a respective passing self-test and wherein another at least one of the plurality of potential categories is representative of a respective marginally passing self-test, can assign category values to the plurality of potential categories, and can communicate at least one of the plurality of category values.
摘要翻译： 磁场传感器和相关技术可以识别感测对象的通过条件，故障条件和边缘条件。 磁场传感器和技术可以使用表示感测对象的接近度的接近信号的一个或多个峰值，可以产生代表接近信号的峰值与阈值信号的阈值之间的差异的一个或多个差值 与峰值成比例，可以将一个或多个差值分类为多个潜在类别，其中多个潜在类别中的至少一个代表相应的经过自检，并且其中，多个潜在类别中的至少一个 潜在类别代表相应的边缘自我测试，可以将类别值分配给多个潜在类别，并且可以传达多个类别值中的至少一个。
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10.发明申请CIRCUITS AND METHODS FOR GENERATING A THRESHOLD SIGNAL USED IN A MAGNETIC FIELD SENSOR BASED ON A PEAK SIGNAL ASSOCIATED WITH A PRIOR CYCLE OF A MAGNETIC FIELD SIGNAL 有权基于与磁场信号的先前周期相关的峰值信号在磁场传感器中产生阈值信号的电路和方法公开(公告)号：US20140145711A1
公开(公告)日：2014-05-29
申请号：US13685287
申请日：2012-11-26
申请人： Eric Burdette , James M. Bailey , Daniel S. Dwyer , Jeff Eagen , Glenn A. Forrest , Christine Graham , Eric Shoemaker , P. Karl Scheller
发明人： Eric Burdette , James M. Bailey , Daniel S. Dwyer , Jeff Eagen , Glenn A. Forrest , Christine Graham , Eric Shoemaker , P. Karl Scheller
IPC分类号： G01B7/14
CPC分类号： G01B7/14 , G01D5/2448 , G01P3/488 , G01P3/489
摘要： A circuit to detect a movement of an object includes a magnetic field sensing element for generating a magnetic field signal proportional to a magnetic field associated with the object and a motion detector to generate a motion signal indicative of the movement of the object. The motion detector includes a peak identifying circuit to provide a peak signal and a peak sample selection module that selects a sample associated with one or more prior cycles of a magnetic field signal to generate a selected peak signal. The motion detector further includes a threshold generator to generate a threshold signal as a function of the selected peak signal and a comparator to compare the threshold signal with the magnetic field signal to generate the motion signal. Peak samples from prior magnetic field signal cycles may be averaged for use to establish the threshold signal. A method associated with the circuit is also described.
摘要翻译： 用于检测物体运动的电路包括用于产生与与物体相关联的磁场成比例的磁场信号的磁场感测元件和运动检测器，以产生指示物体运动的运动信号。 运动检测器包括提供峰值信号的峰值识别电路和峰值采样选择模块，其选择与磁场信号的一个或多个先前循环相关联的采样以产生所选择的峰值信号。 运动检测器还包括阈值产生器，用于根据所选择的峰值信号产生阈值信号;以及比较器，用于将阈值信号与磁场信号进行比较以产生运动信号。 来自先前磁场信号周期的峰值采样可以被平均以用于建立阈值信号。 还描述了与电路相关联的方法。
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