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    Adjusting magnetic bias field intensity in EAS presence detection system to enhance detection
    1.
    发明授权
    Adjusting magnetic bias field intensity in EAS presence detection system to enhance detection 失效

    公开(公告)号：US5406262A

    公开(公告)日：1995-04-11

    申请号：US78559

    申请日：1993-06-16

    申请人： Fred W. Herman ,  Lincoln H. Charlot, Jr. ,  Ming R. Lian ,  Douglas A. Drew

    发明人： Fred W. Herman ,  Lincoln H. Charlot, Jr. ,  Ming R. Lian ,  Douglas A. Drew

    IPC分类号： G08B13/24 ,  G08B13/14

    CPC分类号： G08B13/2482 ,  G08B13/2474 ,  G08B13/2488

    摘要： An EAS presence detection system includes a transmitter for transmitting an electromagnetic radiation signal of a first predetermined frequency into a surveillance zone; a tag for attachment to an article to be detected within the surveillance zone, the tag containing a transponder including a material that, when in the presence of a magnetic bias field within a predetermined magnetic field intensity range, responds to detection of electromagnetic radiation of the said first predetermined frequency by transmitting electromagnetic radiation of a second predetermined frequency that is either a multiple harmonic or a frequency-divided quotient of the first predetermined frequency or at the first frequency; a detection system disposed for detecting radiation of the second predetermined frequency within the surveillance zone; and a magnetic field source for providing a magnetic bias field within the predetermined magnetic field intensity range within the surveillance zone. The magnetic field source includes a coil disposed in or adjacent the surveillance zone and an adjustable current source for causing a current to flow through the coil to provide a magnetic bias field within the surveillance zone. The coil is a large aperture solenoid coil wound on a core of metallic material of high permeability and high magnetic saturation. The core may be shielded from the electromagnetic radiation field of the first predetermined frequency by a non-ferrous electrically conductive tube disposed around the coil. The amplitude of the current is adjusted to provide a magnetic bias field within said predetermined magnetic field intensity range within the surveillance zone. The amplitude of the current is varied to sweep the intensity of the magnetic bias field through such a range of magnetic field intensities as to cause the magnetic bias field within each portion of the surveillance zone to be within said predetermined magnetic field intensity range during at least a portion of said sweep. A control system is coupled to the detection system and the adjusting means to determine whether detection by the detection means of electromagnetic radiation at the second predetermined frequency is due to the movement of a tag through the surveillance system or is due to the presence of a stationary tag in or near the surveillance zone.

    Eas System Providing Synchronized Transmission
    2.
    发明申请
    Eas System Providing Synchronized Transmission 有权
    Eas系统提供同步传输

    公开(公告)号：US20090051534A1

    公开(公告)日：2009-02-26

    申请号：US11991689

    申请日：2005-09-09

    申请人： Gerardo Aguirre ,  Douglas A. Drew

    发明人： Gerardo Aguirre ,  Douglas A. Drew

    IPC分类号： G08B13/14

    CPC分类号： G08B13/2488

    摘要： A system and method for providing synchronized transmission in an electronic article surveillance (EAS) system is provided. The method includes determining a transmission timing difference between a plurality of units of the EAS system using a communication link of the EAS system and synchronizing transmissions for each of the plurality of units based on the transmission timing difference.

    摘要翻译： 提供了一种用于在电子物品监视（EAS）系统中提供同步传输的系统和方法。 该方法包括使用EAS系统的通信链路来确定EAS系统的多个单元之间的传输定时差异，并且基于传输定时差来同步多个单元中的每个单元的传输。

    MOBILE EAS DEACTIVATOR
    3.
    发明申请
    MOBILE EAS DEACTIVATOR 有权
    移动EAS脱敏器

    公开(公告)号：US20140268472A1

    公开(公告)日：2014-09-18

    申请号：US14211798

    申请日：2014-03-14

    申请人： RONALD B. EASTER ,  Douglas A. Drew

    发明人： RONALD B. EASTER ,  Douglas A. Drew

    IPC分类号： H01F13/00

    CPC分类号： G08B13/2411 ,  G07G1/00 ,  G07G1/12 ,  G08B13/246 ,  H01F13/006

    摘要： A deactivator device for a mobile Point of Sale (mPOS) systems includes a pair of spaced apart, fixed position electromagnets positioned and configured such that magnetic fields generated by the electromagnets aid one another to form a combined magnetic field; a battery; a capacitor; and an electronics assembly including a microcontroller configured to control storage of energy from the battery in the capacitor and to selectively provide a deactivation or activation pulse from the capacitor to the electromagnets. The components may be positioned in a housing configured for attachment to a mPOS mobile device.

    摘要翻译： 用于移动销售点（mPOS）系统的去激活装置包括一对间隔开的固定位置电磁体，其被定位和配置成使得由电磁体产生的磁场彼此帮助形成组合的磁场; 一个电池 电容器 以及电子组件，其包括被配置为控制来自电容器中的电池的能量存储的微控制器，并且选择性地提供从电容器到电磁体的去激活或激活脉冲。 组件可以被定位在被配置为附接到mPOS移动设备的外壳中。

    Deactivator using resonant recharge
    6.
    发明授权
    Deactivator using resonant recharge 有权
    停电器使用谐振充电

    公开(公告)号：US07106200B2

    公开(公告)日：2006-09-12

    申请号：US10865020

    申请日：2004-06-10

    申请人： Stewart E. Hall ,  Douglas A. Drew

    发明人： Stewart E. Hall ,  Douglas A. Drew

    IPC分类号： G08B13/14

    CPC分类号： G08B13/2411

    摘要： A method and apparatus to perform resonant recharge transfers energy from an AC power source (e.g., a power line) or from a DC power source or from bulk capacitors to a deactivation capacitor. The resonant recharge occurs faster than conventional techniques without the need for dissipative current limiting control elements. Through the employment of a resonant approach, the natural impedance of the resonant circuit limits the current without high resistive losses of a limiting resistor or other current limiting regulator. This may increase the efficiency of the recharge circuit and may charge the deactivation capacitor to a voltage that is higher than the voltage of the power source.

    摘要翻译： 执行谐振充电的方法和装置从AC电源（例如，电力线）或从DC电源或从大容量电容器转移到去激活电容器的能量。 谐振充电发生比常规技术更快，而不需要耗散电流限制控制元件。 通过使用谐振方法，谐振电路的自然阻抗限制了电流，而不受限制电阻或其他限流调节器的高电阻损耗。 这可以提高再充电电路的效率，并且可以将去激活电容器充电到高于电源电压的电压。

    Shoplifting detection label deactivator with combined excitation-deactivation coil
    8.
    发明授权
    Shoplifting detection label deactivator with combined excitation-deactivation coil 失效
    具有组合激励失活线圈的移动检测标签去激活器

    公开(公告)号：US5796339A

    公开(公告)日：1998-08-18

    申请号：US758957

    申请日：1996-12-02

    申请人： Douglas A. Drew ,  Joerg W. Zschirnt

    发明人： Douglas A. Drew ,  Joerg W. Zschirnt

    IPC分类号： G08B13/24 ,  G08B13/14

    CPC分类号： G08B13/2411 ,  G08B13/2471 ,  G08B13/2474 ,  G08B13/2477

    摘要： A deactivation device for use in an EAS system and comprising a detection transmit means operable to transmit a detection field into a detection/deactivation area, a detecting means operable to sense a signal from an EAS tag responsive to the detection field, and a deactivating means for transmitting a deactivating field into the detection/deactivation area operable to deactivate said active EAS tag, and wherein said detection transmit means and said deactivating means use a common coil to transmit the respective fields.

    摘要翻译： 一种用于EAS系统的去激活装置，包括可操作以将检测区域发送到检测/去激活区域的检测发送装置，用于响应于该检测场检测来自EAS标签的信号的检测装置，以及去激活装置 用于将去激活字段发送到可操作以停用所述活动EAS标签的检测/去激活区域中，并且其中所述检测发送装置和所述去激活装置使用公共线圈来发送各个字段。

    Systems and methods for customer deactivation of security elements
    9.
    发明授权
    Systems and methods for customer deactivation of security elements 有权
    用于客户停用安全元素的系统和方法

    公开(公告)号：US09552710B2

    公开(公告)日：2017-01-24

    申请号：US14332731

    申请日：2014-07-16

    申请人： Paul B. Rasband ,  Hubert A. Patterson ,  Stewart E. Hall ,  Nancy L. Van Nest ,  Douglas A. Drew

    发明人： Paul B. Rasband ,  Hubert A. Patterson ,  Stewart E. Hall ,  Nancy L. Van Nest ,  Douglas A. Drew

    IPC分类号： H04N7/18 ,  G08B13/24 ,  G07G3/00

    CPC分类号： G08B13/2454 ,  G07G3/003 ,  G08B13/246 ,  H04N7/188

    摘要： Systems (100) and methods (1100) for activating an Electronic Article Surveillance (“EAS”) element deactivator. The methods involve: obtaining customer-related data from a customer of a business organization who is attempting to deactivate an EAS element of at least one item; obtaining transaction data contained in a receipt issued upon completion of a checkout transaction for the customer; communicating the customer-related data, transaction data and a unique identifier for an EAS element deactivation system to a remote computing device; processing the customer-related data and transaction data to obtain confirmation that the customer has recently successfully completed the checkout transaction for the item and the EAS element of the item has not yet been deactivated; and activating the EAS element deactivator of the EAS element deactivation system subsequent to when the confirmation is obtained.

    摘要翻译： 用于激活电子物品监视（“EAS”）元件去激活器的系统（100）和方法（1100）。 这些方法涉及：从尝试停用至少一个项目的EAS元素的商业组织的客户获取客户相关数据; 获取在为客户完成结帐交易时发出的收据中包含的交易数据; 将客户相关数据，交易数据和用于EAS元件去激活系统的唯一标识符传达给远程计算设备; 处理与客户有关的数据和交易数据，以获得客户最近已经成功完成了项目的结帐交易的确认，并且该项目的EAS元素尚未被停用; 以及在获得确认之后激活EAS元件去激活系统的EAS元件去激活器。

    SYSTEMS AND METHODS FOR CUSTOMER DEACTIVATION OF SECURITY ELEMENTS
    10.
    发明申请
    SYSTEMS AND METHODS FOR CUSTOMER DEACTIVATION OF SECURITY ELEMENTS 有权
    用于客户停用安全元素的系统和方法

    公开(公告)号：US20150009035A1

    公开(公告)日：2015-01-08

    申请号：US14332731

    申请日：2014-07-16

    申请人： PAUL B. RASBAND ,  Hubert A. Patterson ,  Stewart E. Hall ,  Nancy L. Van Nest ,  Douglas A. Drew

    发明人： PAUL B. RASBAND ,  Hubert A. Patterson ,  Stewart E. Hall ,  Nancy L. Van Nest ,  Douglas A. Drew

    IPC分类号： G08B13/24

    CPC分类号： G08B13/2454 ,  G07G3/003 ,  G08B13/246 ,  H04N7/188

    摘要： Systems (100) and methods (1100) for activating an Electronic Article Surveillance (“EAS”) element deactivator. The methods involve: obtaining customer-related data from a customer of a business organization who is attempting to deactivate an EAS element of at least one item; obtaining transaction data contained in a receipt issued upon completion of a checkout transaction for the customer; communicating the customer-related data, transaction data and a unique identifier for an EAS element deactivation system to a remote computing device; processing the customer-related data and transaction data to obtain confirmation that the customer has recently successfully completed the checkout transaction for the item and the EAS element of the item has not yet been deactivated; and activating the EAS element deactivator of the EAS element deactivation system subsequent to when the confirmation is obtained.

    摘要翻译： 用于激活电子物品监视（“EAS”）元件去激活器的系统（100）和方法（1100）。 这些方法涉及：从尝试停用至少一个项目的EAS元素的商业组织的客户获取客户相关数据; 获取在为客户完成结帐交易时发出的收据中包含的交易数据; 将客户相关数据，交易数据和用于EAS元件去激活系统的唯一标识符传达给远程计算设备; 处理客户相关数据和交易数据，以获得客户最近已成功完成该项目的结帐交易的确认，并且该项目的EAS元素尚未被停用; 以及在获得确认之后激活EAS元件去激活系统的EAS元件去激活器。