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1.发明授权System and method for determining proximity to a wireless boundary of programmable shape used in animal containment 有权用于确定与动物遏制中使用的可编程形状的无线边界接近的系统和方法公开(公告)号：US07656291B2
公开(公告)日：2010-02-02
申请号：US11670278
申请日：2007-02-01
IPC分类号： G08B1/08
CPC分类号： A01K15/023 , G08B21/0261
摘要： Described is a boundary proximity determining system for wirelessly defining a boundary having a programmable shape and for indicating the occurrence of a rover unit traversing the boundary. The boundary proximity determining system includes a base station unit that generates a plurality of magnetic fields. The boundary proximity determining system also includes a rover unit that is responsive to the generated magnetic fields such that the rover unit defines the boundary in terms of the intensities and polarities of the magnetic fields. The rover unit determines whether the rover unit is within or outside the boundary by determining the current location of the rover unit in terms of the intensities and polarities of the magnetic fields and comparing the current location to the boundary.
摘要翻译： 描述了一种边界接近确定系统，用于无线地限定具有可编程形状的边界并且用于指示穿越边界的流动站单元的出现。 边界接近确定系统包括产生多个磁场的基站单元。 边界接近确定系统还包括响应于所产生的磁场的流动站单元，使得流动站单元根据磁场的强度和极性限定边界。 流动站单元通过根据磁场的强度和极性确定流动站单元的当前位置并将当前位置与边界进行比较来确定流动站单元是否在边界内或外部。
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2.发明申请System and Method for Determining Proximity to a Wireless Boundary of Programmable Shape Used in Animal Containment 有权用于确定动物遏制中使用的可编程形状的无线边界接近度的系统和方法公开(公告)号：US20080186197A1
公开(公告)日：2008-08-07
申请号：US11670278
申请日：2007-02-01
CPC分类号： A01K15/023 , G08B21/0261
摘要： Described is a boundary proximity determining system for wirelessly defining a boundary having a programmable shape and for indicating the occurrence of a rover unit traversing the boundary. The boundary proximity determining system includes a base station unit that generates a plurality of magnetic fields. The boundary proximity determining system also includes a rover unit that is responsive to the generated magnetic fields such that the rover unit defines the boundary in terms of the intensities and polarities of the magnetic fields. The rover unit determines whether the rover unit is within or outside the boundary by determining the current location of the rover unit in terms of the intensities and polarities of the magnetic fields and comparing the current location to the boundary.
摘要翻译： 描述了一种边界接近确定系统，用于无线地限定具有可编程形状的边界并且用于指示穿越边界的流动站单元的出现。 边界接近确定系统包括产生多个磁场的基站单元。 边界接近确定系统还包括响应于所产生的磁场的流动站单元，使得流动站单元根据磁场的强度和极性限定边界。 流动站单元通过根据磁场的强度和极性确定流动站单元的当前位置并将当前位置与边界进行比较来确定流动站单元是否在边界内或外部。
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公开(公告)号：US07142167B2
公开(公告)日：2006-11-28
申请号：US10981194
申请日：2004-11-04
CPC分类号： G08B21/0222 , G08B21/02 , G08B21/023 , G08B21/0247
摘要： A proximity detection system for determining when a single channel receiver becomes proximate to any point on a wireless closed boundary continuously generated by a transmitter. The transmitter includes a magnetic field generator broadcasting a composite, modulated, time-varying magnetic field signal of a particular carrier frequency. The receiver forms a measure of the broadcast magnetic field intensity incident to the location of the receiver or a measure of the power or energy of incident field.
摘要翻译： 一种用于确定单个信道接收机何时变得接近由发射机连续生成的无线封闭边界上的任何点的接近检测系统。 发射机包括广播特定载波频率的复合调制的时变磁场信号的磁场发生器。 接收器形成了入射到接收器位置的广播磁场强度的量度或入射场的功率或能量的量度。
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4.发明授权Wireless boundary proximity determining and animal containment system and method 有权无线边界接近确定和动物遏制系统及方法公开(公告)号：US06879300B2
公开(公告)日：2005-04-12
申请号：US09779076
申请日：2001-02-07
CPC分类号： G08B21/0222 , G08B21/02 , G08B21/023 , G08B21/0247
摘要： A proximity detection system for determining when a single channel receiver becomes proximate to any point on a wireless closed boundary continuously generated by a transmitter. The transmitter includes a magnetic field generator broadcasting a composite, modulated, time-varying magnetic field signal of a particular carrier frequency. The receiver forms a measure of the broadcast magnetic field intensity incident to the location of the receiver or a measure of the power or energy of incident field.
摘要翻译： 一种用于确定单个信道接收机何时变得接近由发射机连续生成的无线封闭边界上的任何点的接近检测系统。 发射机包括广播特定载波频率的复合调制的时变磁场信号的磁场发生器。 接收器形成了入射到接收器位置的广播磁场强度的量度或入射场的功率或能量的量度。
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5.发明授权Logarithmic current measurement circuit with improved accuracy and temperature stability and associated method 失效对数电流测量电路具有提高的精度和温度稳定性及相关方法
公开(公告)号：US5327029A
公开(公告)日：1994-07-05
申请号：US58654
申请日：1993-05-06
摘要： A logarithmic current measurement circuit for operating upon an input electric signal utilizes a quad, dielectrically isolated, well-matched, monolithic bipolar transistor array. One group of circuit components within the circuit cooperate with two transistors of the array to convert the input signal logarithmically to provide a first output signal which is temperature-dependant, and another group of circuit components cooperate with the other two transistors of the array to provide a second output signal which is temperature-dependant. A divider ratios the first and second output signals to provide a resultant output signal which is independent of temperature. The method of the invention includes the operating steps performed by the measurement circuit.
摘要翻译： 用于对输入电信号进行操作的对数电流测量电路利用四通道，电介质隔离，良好匹配的单片双极晶体管阵列。 电路内的一组电路组件与阵列的两个晶体管协调，以对数转换输入信号，以提供与温度有关的第一输出信号，另一组电路组件与阵列的另外两个晶体管配合，以提供 与温度有关的第二输出信号。 A分频器比较第一和第二输出信号以提供独立于温度的结果输出信号。 本发明的方法包括由测量电路执行的操作步骤。
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公开(公告)号：US06538617B2
公开(公告)日：2003-03-25
申请号：US10038195
申请日：2002-01-03
申请人： James M. Rochelle
发明人： James M. Rochelle
IPC分类号： H01Q704
CPC分类号： G08B21/0263
摘要： A passive, non-multiplexed, two-axis antenna for sensing time-varying magnetic fields of a particular carrier frequency at a second point in space as produced by a electromagnetic field generator located at a first point in space. The antenna has a particular sensitive plane and produces a single output signal having amplitude proportionally related to the magnitude of the incident magnetic field's vector projection onto the antenna's sensitive plane. If the phase of the magnetic field is known, then the antenna's signal is processed to obtain the incident magnetic field's vector components. The antenna enables the realization of two- or three-axis magnetic field receivers with reduced signal processing complexity, cost and power requirements.
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