公开(公告)号：US07253614B2

公开(公告)日：2007-08-07

申请号：US11085648

申请日：2005-03-21

申请人： Glenn A. Forrest ,  James M. Bailey ,  Washington Lamar

发明人： Glenn A. Forrest ,  James M. Bailey ,  Washington Lamar

IPC分类号： G01B7/14

CPC分类号： G01D5/2449 ,  G01D5/2448 ,  G01D5/2451

摘要： A proximity detector has a sequential flow state machine to identify states associated with a magnetic field signal provided by a magnetic field sensing element. The proximity detector can include a vibration processor to identify a vibration in response to the states.

摘要翻译： 接近检测器具有顺序流动状态机，以识别与由磁场感测元件提供的磁场信号相关联的状态。 接近检测器可以包括振动处理器，以响应于状态识别振动。

公开(公告)号：US20090024889A1

公开(公告)日：2009-01-22

申请号：US11779354

申请日：2007-07-18

申请人： Glenn A. Forrest ,  Washington Lamar

发明人： Glenn A. Forrest ,  Washington Lamar

IPC分类号： G01R31/3187

CPC分类号： G01R31/31724

摘要： An integrated circuit and a method of built-in self test in the integrated circuit employ an offset control node and offset capabilities with the integrated circuit in order to communicate and distribute a built-in self-test signal. The built-in self-test signal can emulate signals internal to the integrated circuit during normal operation, and/or the built-in self-test signal can have other signal characteristics representative of signals other than those signals internal to the integrated circuit during normal operation.

摘要翻译： 集成电路中的集成电路和内置自检的方法采用偏移控制节点和集成电路的偏移能力，以便传送和分配内置的自检信号。 内置的自检信号可以在正常操作期间模拟集成电路内部的信号，和/或内置的自检信号可以具有代表在正常情况下集成电路内部的那些信号以外的信号的其他信号特性 操作。

公开(公告)号：US07694200B2

公开(公告)日：2010-04-06

申请号：US11779354

申请日：2007-07-18

申请人： Glenn A. Forrest ,  Washington Lamar

发明人： Glenn A. Forrest ,  Washington Lamar

IPC分类号： G01R31/28 ,  G06F11/00

CPC分类号： G01R31/31724

摘要： An integrated circuit and a method of built-in self test in the integrated circuit employ an offset control node and offset capabilities with the integrated circuit in order to communicate and distribute a built-in self-test signal. The built-in self-test signal can emulate signals internal to the integrated circuit during normal operation, and/or the built-in self-test signal can have other signal characteristics representative of signals other than those signals internal to the integrated circuit during normal operation.

摘要翻译： 集成电路中的集成电路和内置自检的方法采用偏移控制节点和集成电路的偏移能力，以便传送和分配内置的自检信号。 内置的自检信号可以在正常操作期间模拟集成电路内部的信号，和/或内置的自检信号可以具有代表在正常情况下集成电路内部的那些信号以外的信号的其他信号特性 操作。

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。

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。

公开(公告)号：US20110048102A1

公开(公告)日：2011-03-03

申请号：US12548738

申请日：2009-08-27

申请人： Devon Fernandez ,  Glenn A. Forrest

发明人： Devon Fernandez ,  Glenn A. Forrest

IPC分类号： G01P21/00 ,  G01B7/14

CPC分类号： G01D5/2448

摘要： A circuit to detect a movement of an object has a calibration time period that ends when peak detectors in the circuit stop updating for a predetermined amount of time. A method associated with the circuit is also described.

摘要翻译： 用于检测物体的移动的电路具有当电路中的峰值检测器停止更新预定时间量时结束的校准时间段。 还描述了与电路相关联的方法。

公开(公告)号：US07085119B2

公开(公告)日：2006-08-01

申请号：US10623974

申请日：2003-07-21

申请人： Alberto Bilotti ,  Glenn A. Forrest ,  Ravi Vig

发明人： Alberto Bilotti ,  Glenn A. Forrest ,  Ravi Vig

IPC分类号： H01H47/00

CPC分类号： H03K17/97 ,  H03K17/9517 ,  Y10T307/766

摘要： A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a magnet, and hence a magnetic field, to the Hall effect sensor regardless of the orientation of the magnet to the Hall effect sensor.

公开(公告)号：US06693419B2

公开(公告)日：2004-02-17

申请号：US10156684

申请日：2002-05-28

申请人： Jason T. Stauth ,  P. Karl Scheller ,  Glenn A. Forrest ,  Ravi Vig ,  Jay M. Towne

发明人： Jason T. Stauth ,  P. Karl Scheller ,  Glenn A. Forrest ,  Ravi Vig ,  Jay M. Towne

IPC分类号： G01B714

CPC分类号： G01D5/24428 ,  G01V3/08

摘要： A proximity detector includes an offset circuit for bringing at least one of a magnetic field signal and a tracking signal towards the other one of the magnetic field signal and the tracking signal when the detector output signal changes state. A magnetic field-to-voltage transducer provides the magnetic field signal indicative of an ambient magnetic field and a peak detector responsive to the magnetic field signal provides the tracking signal which substantially follows the magnetic field signal. A comparator generates the detector output signal which changes state when the magnetic field signal varies from the tracking signal by a predetermined amount.

摘要翻译： 接近检测器包括偏移电路，用于当检测器输出信号改变状态时，使磁场信号和跟踪信号中的至少一个朝向另一个磁场信号和跟踪信号。 磁场电压换能器提供指示环境磁场的磁场信号，响应于磁场信号的峰值检测器提供基本上遵循磁场信号的跟踪信号。 比较器产生检测器输出信号，该信号当磁场信号从跟踪信号变化预定量时改变状态。

公开(公告)号：US09513337B2

公开(公告)日：2016-12-06

申请号：US13290293

申请日：2011-11-07

申请人： Glenn A. Forrest ,  Aaron Cook ,  Dana Briere ,  Devon Fernandez ,  Naota Nakayama

发明人： Glenn A. Forrest ,  Aaron Cook ,  Dana Briere ,  Devon Fernandez ,  Naota Nakayama

IPC分类号： G01R31/3185

CPC分类号： G01R31/318552 ,  G01R31/318594

摘要： An integrated circuit sensor includes circuitry and methods for generating a high speed delay fault test clock signal. A trimmable oscillator generates a master clock signal for use by an output protocol processor to provide the sensor output signal. A fault test clock signal generator is responsive to the master clock signal and to a test trigger signal for generating the test clock signal having a launch pulse and a capture pulse, each having edges substantially coincident with like edges of pulses of the master clock signal and a spacing between launch and capture pulses established by the trimmable master clock signal.

摘要翻译： 集成电路传感器包括用于产生高速延迟故障测试时钟信号的电路和方法。 可调谐振荡器产生主时钟信号，供输出协议处理器使用以提供传感器输出信号。 故障测试时钟信号发生器响应主时钟信号和测试触发信号，用于产生具有发射脉冲和捕获脉冲的测试时钟信号，每个具有与主时钟信号的脉冲的相似边缘基本一致的边沿， 由可调整主时钟信号建立的发射和捕获脉冲之间的间距。

公开(公告)号：US20090001972A1

公开(公告)日：2009-01-01

申请号：US11768370

申请日：2007-06-26

申请人： Devon Fernandez ,  Jeff Eagen ,  Glenn A. Forrest ,  Mathew Drouin

发明人： Devon Fernandez ,  Jeff Eagen ,  Glenn A. Forrest ,  Mathew Drouin

IPC分类号： G01B7/14

CPC分类号： G01P3/481 ,  G01D5/24452 ,  G01D5/2448 ,  G01D5/2451 ,  G01P3/487 ,  G01V3/081

摘要： A proximity detector employs a first peak detector circuit and a second peak detector circuit, both responsive to a magnetic field signal. The second peak detector circuit includes a positive peak detector circuit and a negative peak detector circuit, each of which have a predetermined excursion limit in an outward direction away from a center voltage of the magnetic field signal so as to be less affected by a large signature region in the magnetic field signal. The proximity detector also includes an output control circuit. The output control circuit is configured to provide an output signal, which, during a determined time period, changes state in response to the first peak detector circuit, and which, after the determined time period, changes state in response to the second peak detector circuit.

摘要翻译： 接近检测器采用响应于磁场信号的第一峰值检测器电路和第二峰值检测器电路。 第二峰值检测器电路包括正峰值检测器电路和负峰值检测器电路，每个电路具有远离磁场信号的中心电压的向外的方向上的预定的偏移极限，以便受到大的签名的影响较小 区域的磁场信号。 接近检测器还包括输出控制电路。 输出控制电路被配置为提供输出信号，其在确定的时间段期间响应于第一峰值检测器电路而改变状态，并且在确定的时间段之后响应于第二峰值检测器电路而改变状态 。