公开(公告)号：US20060064259A1

公开(公告)日：2006-03-23

申请号：US10936125

申请日：2004-09-08

Applicant: Kefeng Zeng ,  Keat Ong ,  Craig Grimes

Inventor： Kefeng Zeng ,  Keat Ong ,  Craig Grimes

IPC: G06F19/00

CPC classification number: G01N29/4427 ,  G01N9/002 ,  G01N29/032 ,  G01N29/11 ,  G01N29/2412 ,  G01N29/46 ,  G01N2291/014 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0426 ,  G01N2291/0427

Abstract: Circuitry adapted for carrying out associated techniques for: (a) calculating a damping factor, e.g., a damping ratio represented by ζ, or a quality factor Q, where ζ≈1/2Q, for a transient signal received, having been emitted from a resonator-type sensor element; (b) determining amplitude, A, of the transient signal; or (c) generating a frequency response dataset of interrelated points for the transient signal. A threshold comparison circuit is included for converting the transient signal received into a first and second digital waveform; the first digital waveform represents cycle crossings of the transient signal associated with a first threshold value, and the second digital waveform represents cycle crossings of the transient signal associated with a second threshold value. The transient signal may be converted, likewise, into third, and so on, digital waveforms, whereby the third digital waveform represents cycle crossings of the transient signal associated with a third threshold value. Respective digital counters are included, each of which is adapted for determining a total number of cycles of the first, second, third, and so on, digital waveform. A processing unit of suitable speed and capacity is employed for the calculating of the damping factor, determining an amplitude, and/or generating a frequency response dataset.

公开(公告)号：US09224021B2

公开(公告)日：2015-12-29

申请号：US13399091

申请日：2012-02-17

Applicant: Lothar Grunenberg ,  Nimesh Shah ,  Kefeng Zeng

Inventor： Lothar Grunenberg ,  Nimesh Shah ,  Kefeng Zeng

IPC: G08B13/14 ,  G06K7/10 ,  G08B13/24

CPC classification number: G06K7/10356 ,  G06K7/10009 ,  G08B13/242 ,  G08B13/2474 ,  G08B13/248

Abstract: A system and method for automatically deactivating a security tag upon entry into business establishment to prevent tag pollution. The system and method involve positioning a security tag deactivator at an entrance of a business establishment and emitting an EM field sufficient to deactivate any security tag that enters into the business establishment.

Abstract translation: 一种用于在进入商业机构时自动停用安全标签以防止标签污染的系统和方法。 该系统和方法涉及将安全标签去激活器定位在商业机构的入口处，并且发出足以停用进入商业机构的任何安全标签的EM场。

公开(公告)号：US08587489B2

公开(公告)日：2013-11-19

申请号：US12134827

申请日：2008-06-06

Applicant: Harry Oung ,  Kefeng Zeng

Inventor： Harry Oung ,  Kefeng Zeng

IPC: H01Q7/08 ,  H01Q11/18 ,  H01Q21/00 ,  G08B13/22

CPC classification number: H01Q1/2216 ,  H01Q3/26 ,  H01Q7/00 ,  H01Q19/134

Abstract: This invention relates to dynamically controlled, electronic article surveillance (EAS) systems whereby an array of antenna elements is digitally phased and actively driven for concurrent transmission, and digitally phased and combined in the receiver unit to improve security tag detection. In particular, the individual frequency and phase of the plurality of the transmit/receive signals are rapidly varied to allow for automated manipulation (steering) of the transmit field pattern and receive field sensitivity. It is the object of this invention to achieve the following features via means of digital phasing and dynamic computer control: sufficient far-field cancellation, null-free detection and uncompromised detection performance regardless of tag's orientation.

Abstract translation: 本发明涉及动态控制的电子物品监视（EAS）系统，其中天线元件阵列被数字相位并且被主动地驱动并行传输，并且在接收器单元中数字相位并组合以改善安全标签检测。 特别地，多个发射/接收信号的单个频率和相位迅速变化，以允许发射场图案的自动操纵（导向）和接收场灵敏度。 本发明的目的是通过数字定相和动态计算机控制来实现以下特征：足够的远场取消，无空间检测和无损检测性能，而不管标签的方向如何。

公开(公告)号：US20080261261A1

公开(公告)日：2008-10-23

申请号：US12080472

申请日：2008-04-02

Applicant: Craig A. Grimes ,  Kefeng Zeng ,  Keat Ghee Ong ,  Xiping Yang

Inventor： Craig A. Grimes ,  Kefeng Zeng ,  Keat Ghee Ong ,  Xiping Yang

IPC: C12Q1/02 ,  C12M1/00

CPC classification number: G01N33/4905

Abstract: A system/analyzer-unit and method/platform—using information obtained from at least one, adapted for a plurality of, magnetoelastic sensor elements in contact with one or more samples comprising blood from a patient—for automatically quantifying one or more parameters of the patient's blood. Information obtained from emissions measured from each of the sensor elements is uniquely processed to determine a quantification about the patient's blood, such as, quantifying platelet aggregation to determine platelet contribution toward clot formation; quantifying fibrin network contribution toward clot formation; quantifying platelet-fibrin clot interactions; quantifying kinetics of thrombin clot generation; quantifying platelet-fibrin clot strength; and so on. Structural aspects of the analyzer-unit include: a cartridge having at least one bay within which a sensor element is positioned; each bay in fluid communication with both (a) an entry port for injecting a first blood sample composed of blood taken from the patient (human or other mammal), and (b) a gas vent through which air displaced by injecting the first blood sample into the bay.

Abstract translation: 从至少一个获得的系统/分析仪单元和方法/平台使用信息，其从适于与包含来自患者的血液的一个或多个样本接触的多个磁弹性传感器元件获得，用于自动量化一个或多个参数 患者血液 从每个传感器元件测量的排放获得的信息被独特地处理以确定关于患者血液的量化，例如量化血小板聚集以确定血小板对凝块形成的贡献; 量化纤维蛋白网络对凝块形成的贡献; 定量血小板 - 纤维蛋白凝块相互作用; 定量凝血酶凝块产生动力学; 定量血小板 - 纤维蛋白凝块强度; 等等。 分析器单元的结构方面包括：具有传感器元件定位在其中的至少一个隔间的盒; 每个隔间与（a）用于注射由患者（人或其他哺乳动物）取得的血液组成的第一血液样本的进入口和（b）通过注射第一血液样本而排出空气的排气口 进入海湾。

公开(公告)号：US20120212343A1

公开(公告)日：2012-08-23

申请号：US13399091

申请日：2012-02-17

Applicant: Lothar Grunenberg ,  Nimesh Shah ,  Kefeng Zeng

Inventor： Lothar Grunenberg ,  Nimesh Shah ,  Kefeng Zeng

IPC: G08B13/14 ,  G06K7/01

CPC classification number: G06K7/10356 ,  G06K7/10009 ,  G08B13/242 ,  G08B13/2474 ,  G08B13/248

Abstract: A system and method for automatically deactivating a security tag upon entry into business establishment to prevent tag pollution. The system and method involve positioning a security tag deactivator at an entrance of a business establishment and emitting an EM field sufficient to deactivate any security tag that enters into the business establishment.

Abstract translation: 一种用于在进入商业机构时自动停用安全标签以防止标签污染的系统和方法。 该系统和方法涉及将安全标签去激活器定位在商业机构的入口处，并且发出足以停用进入商业机构的任何安全标签的EM场。

公开(公告)号：US20090261976A1

公开(公告)日：2009-10-22

申请号：US12433375

申请日：2009-04-30

Applicant: Harry Oung ,  Kefeng Zeng

Inventor： Harry Oung ,  Kefeng Zeng

IPC: G08B13/22

CPC classification number: H01Q1/2216 ,  G08B13/2471 ,  G08B13/2474 ,  G08B13/2477 ,  H01Q3/26 ,  H01Q7/00 ,  H01Q7/06

Abstract: This invention relates to dynamically controlled, electronic article surveillance (EAS) systems whereby an array of antenna elements is digitally phased and actively driven for concurrent transmission, and digitally phased and combined in the receiver unit to improve detection. In particular, the individual frequency and phase of the plurality of the transmit/receive signals are rapidly varied to allow for automated manipulation (steering) of the transmit field pattern and receive field sensitivity. The invention achieves the following features via means of digital phasing and dynamic computer control: sufficient far-field cancellation, null-free detection and uncompromised detection performance regardless of tag's orientation while using single transmission drivers to drive entire antenna structures, whether loop antenna or ferrite core antenna, using a phase coupler, thereby allowing more efficient system operation or additional features such as deactivator antenna operation.

Abstract translation: 本发明涉及动态控制的电子物品监视（EAS）系统，其中天线元件阵列被数字相位并且被主动地驱动并行传输，并且在接收器单元中数字相位并组合以改善检测。 特别地，多个发射/接收信号的单个频率和相位迅速变化，以允许发射场图案的自动操纵（导向）和接收场灵敏度。 本发明通过数字定相和动态计算机控制实现以下特征：无论标签的方向如何，使用单个传输驱动器驱动整个天线结构，无论是环形天线还是铁氧体，足够的远场消除，无空间检测和无损检测性能 核心天线，使用相位耦合器，从而允许更有效的系统操作或诸如停用天线操作的附加特征。

公开(公告)号：US20080303673A1

公开(公告)日：2008-12-11

申请号：US12134827

申请日：2008-06-06

Applicant: Harry Oung ,  Kefeng Zeng

Inventor： Harry Oung ,  Kefeng Zeng

IPC: G08B13/22

CPC classification number: H01Q1/2216 ,  H01Q3/26 ,  H01Q7/00 ,  H01Q19/134

Abstract: This invention relates to dynamically controlled, electronic article surveillance (EAS) systems whereby an array of antenna elements is digitally phased and actively driven for concurrent transmission, and digitally phased and combined in the receiver unit to improve security tag detection. In particular, the individual frequency and phase of the plurality of the transmit/receive signals are rapidly varied to allow for automated manipulation (steering) of the transmit field pattern and receive field sensitivity. It is the object of this invention to achieve the following features via means of digital phasing and dynamic computer control: sufficient far-field cancellation, null-free detection and uncompromised detection performance regardless of tag's orientation.

Abstract translation: 本发明涉及动态控制的电子物品监视（EAS）系统，其中天线元件阵列被数字相位并且被主动地驱动并行传输，并且在接收器单元中数字相位并组合以改善安全标签检测。 特别地，多个发射/接收信号的单个频率和相位迅速变化，以允许发射场图案的自动操纵（导向）和接收场灵敏度。 本发明的目的是通过数字定相和动态计算机控制来实现以下特征：足够的远场取消，无空间检测和无损检测性能，而不管标签的方向如何。

公开(公告)号：US07113876B2

公开(公告)日：2006-09-26

申请号：US10936125

申请日：2004-09-08

Applicant: Kefeng Zeng ,  Keat G. Ong ,  Craig A. Grimes

Inventor： Kefeng Zeng ,  Keat G. Ong ,  Craig A. Grimes

IPC: G01R13/00 ,  G01N11/00

CPC classification number: G01N29/4427 ,  G01N9/002 ,  G01N29/032 ,  G01N29/11 ,  G01N29/2412 ,  G01N29/46 ,  G01N2291/014 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0426 ,  G01N2291/0427

Abstract: Circuitry adapted for carrying out associated techniques for: (a) calculating a damping factor, e.g., a damping ratio represented by ζ, or a quality factor Q, where ζ≈1/2Q, for a transient signal received, having been emitted from a resonator-type sensor element; (b) determining amplitude, A, of the transient signal; or (c) generating a frequency response dataset of interrelated points for the transient signal. A threshold comparison circuit is included for converting the transient signal received into a first and second digital waveform; the first digital waveform represents cycle crossings of the transient signal associated with a first threshold value, and the second digital waveform represents cycle crossings of the transient signal associated with a second threshold value. The transient signal may be converted, likewise, into third, and so on, digital waveforms, whereby the third digital waveform represents cycle crossings of the transient signal associated with a third threshold value. Respective digital counters are included, each of which is adapted for determining a total number of cycles of the first, second, third, and so on, digital waveform. A processing unit of suitable speed and capacity is employed for the calculating of the damping factor, determining an amplitude, and/or generating a frequency response dataset.

Abstract translation: 电路适于执行相关技术，用于：（a）计算阻尼因子，例如由zeta表示的阻尼比或质量因子Q，其中对于从接收到的瞬态信号接收的瞬态信号，zeta≈1/ 2Q 谐振器型传感器元件; （b）确定瞬态信号的振幅A; 或（c）产生用于瞬态信号的相关点的频率响应数据集。 包括阈值比较电路，用于将接收的瞬态信号转换为第一和第二数字波形; 第一数字波形表示与第一阈值相关联的瞬态信号的周期交叉，并且第二数字波形表示与第二阈值相关联的瞬态信号的周期交叉。 瞬态信号也可以同样地转换为数字波形的第三等等，由此第三数字波形表示与第三阈值相关的瞬态信号的周期交叉。 包括各自的数字计数器，每个数字计数器适用于确定第一，第二，第三等等数字波形的总周期数。 采用合适的速度和容量的处理单元来计算阻尼因子，确定幅度和/或生成频率响应数据集。

公开(公告)号：US07912661B2

公开(公告)日：2011-03-22

申请号：US11710294

申请日：2007-02-23

Applicant: Kefeng Zeng ,  Keat Ghee Ong ,  Xiping Yang ,  Craig A. Grimes

Inventor： Kefeng Zeng ,  Keat Ghee Ong ,  Xiping Yang ,  Craig A. Grimes

IPC: G01R23/16

CPC classification number: G01N29/2412 ,  G01L1/125 ,  G01L1/127 ,  G01N29/028 ,  G01N29/036 ,  G01N29/4436 ,  G01N2291/02818 ,  G01N2291/02827

Abstract: Circuitry and program code adapted for carrying out an associated technique for characterizing the response of one or more magnetoelastic sensor elements during exposure to an excitation field generated by an interrogation coil: including: (a) measuring a total sensor signal from the coil with the sensor element positioned within the excitation field within a spacing created by a winding of the coil; and (b) automatically determining: (i) a total measured impedance spectrum from said total sensor signal so measured, and (ii) a plurality of magnitude values representing the real part of a reconstructed impedance spectrum for the sensor element. The reconstructed impedance spectrum for the sensor element, having been calculated by subtracting an impedance generally attributable to the coil during the time an AC excitation signal is provided, from the total measured impedance. Subtraction of coil impedance from total complex impedance is accomplished by separate subtraction of the real part and of the imaginary part, represented as follows Re[Zs(ω)]=Re[Zt(ω)]−Re[Zc(ω)]  Equation (12) and Im[Zs(ω)]=Im[Zt(ω)]−Im[Zc(ω)]  Equation (13) where subscript “t” indicates total complex impedance, “s” indicates sensor element impedance, and “c” indicates coil impedance.

Abstract translation: 电路和程序代码，适于执行相关技术，用于表征一个或多个磁弹性传感器元件在暴露于由询问线圈产生的激励场的响应时的响应：包括：（a）用传感器测量来自线圈的总传感器信号 元件位于由线圈的绕组产生的间隔内的激励场内; 和（b）自动确定：（i）来自所测量的所述总传感器信号的总测量阻抗谱，以及（ii）表示传感器元件的重构阻抗谱的实部的多个幅度值。 通过从总测量的阻抗中减去通常归因于线圈的阻抗计算的传感器元件的重构阻抗谱。 线圈阻抗从总复阻抗的减法是通过实部和虚部的分离减法来实现的，如下所示：Re [Zs（ω）] = Re [Zt（ω）] -Re [Zc（ω） （12）和Im [Zs（ω）] = Im [Zt（ω）] - Im [Zc（ω）]等式（13）其中下标“t”表示总复阻抗，“s”表示传感器元件阻抗， “c”表示线圈阻抗。

公开(公告)号：US20080071487A1

公开(公告)日：2008-03-20

申请号：US11710294

申请日：2007-02-23

Applicant: Kefeng Zeng ,  Keat Ong ,  Xiping Yang ,  Craig Grimes

Inventor： Kefeng Zeng ,  Keat Ong ,  Xiping Yang ,  Craig Grimes

IPC: G01N27/02 ,  G06F19/00

CPC classification number: G01N29/2412 ,  G01L1/125 ,  G01L1/127 ,  G01N29/028 ,  G01N29/036 ,  G01N29/4436 ,  G01N2291/02818 ,  G01N2291/02827

Abstract: Circuitry and program code adapted for carrying out an associated technique for characterizing the response of one or more magnetoelastic sensor elements during exposure to an excitation field generated by an interrogation coil: including: (a) measuring a total sensor signal from the coil with the sensor element positioned within the excitation field within a spacing created by a winding of the coil; and (b) automatically determining: (i) a total measured impedance spectrum from said total sensor signal so measured, and (ii) a plurality of magnitude values representing the real part of a reconstructed impedance spectrum for the sensor element. The reconstructed impedance spectrum for the sensor element, having been calculated by subtracting an impedance generally attributable to the coil during the time an AC excitation signal is provided, from the total measured impedance. Subtraction of coil impedance from total complex impedance is accomplished by separate subtraction of the real part and of the imaginary part, represented as follows Re[Zs(ω)]=Re[Zt(ω)]−Re[Zc(ω)]  Equation (12) and Im[Zs(ω)]=Im[Zt(ω)]−Im[Zc(ω)]  Equation (13) where subscript “t” indicates total complex impedance, “s” indicates sensor element impedance, and “c” indicates coil impedance.