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    Analog to digital converters with extended dynamic range
    2.
    发明授权
    Analog to digital converters with extended dynamic range 失效
    具有扩展动态范围的模数转换器

    公开(公告)号：US5969659A

    公开(公告)日：1999-10-19

    申请号：US980324

    申请日：1997-11-28

    申请人： Brent F. Balch ,  Stephen W. Embling ,  Fadi Ayoub ,  David Fallin

    发明人： Brent F. Balch ,  Stephen W. Embling ,  Fadi Ayoub ,  David Fallin

    IPC分类号： H03M1/18 ,  H03M1/12

    CPC分类号： H03M1/186

    摘要： An arrangement for improving the operation of an analog to digital converter (A/D), which can form part of an integrated circuit, the A/D converter being coupled to a reference voltage and having a plurality of input pins associated therewith comprises: a resistor divider having a plurality of resistors coupled in series, the resistor divider having an upper node coupled to a source of voltage to be converted, having a lower node coupled to a source of reference potential and having a plurality of intermediate nodes; and, each of the upper intermediate nodes being coupled to a respective one of the input pins of the A/D converter. The A/D converter can have enhanced resolution and/or an extended dynamic range when the voltage level being tested is divided arid the reference voltage is reduced. A corresponding method comprises the steps of: successively scaling down a voltage to be converted to a series of stepped down voltage levels; applying the successively stepped down voltage levels to respective ones of the input pins; and, sequentially scanning and acquiring a plurality of scaled A/D converter values from the input pins.

    摘要翻译： 一种用于改进模拟数字转换器（A / D）的操作的装置，其可以形成集成电路的一部分，所述A / D转换器耦合到参考电压并且具有与其相关联的多个输入引脚的装置包括： 电阻器分压器具有串联耦合的多个电阻器，所述电阻器分压器具有耦合到要转换的电压源的上部节点，具有耦合到参考电位源并具有多个中间节点的下部节点; 并且每个上部中间节点耦合到A / D转换器的相应一个输入引脚。 当测试的电压电平被分配时，A / D转换器可以具有增强的分辨率和/或扩展的动态范围，并且减小参考电压。 相应的方法包括以下步骤：连续地缩小要转换成一系列降压电压的电压; 将相继降低的电压电平施加到相应的输入引脚; 并且从输入引脚顺序地扫描和获取多个缩放的A / D转换器值。

    Line synchronized delays for multiple pulsed EAS systems
    3.
    发明授权
    Line synchronized delays for multiple pulsed EAS systems 失效
    多个脉冲EAS系统的线路同步延迟

    公开(公告)号：US5995002A

    公开(公告)日：1999-11-30

    申请号：US980385

    申请日：1997-11-28

    申请人： David Fallin ,  Brent F. Balch

    发明人： David Fallin ,  Brent F. Balch

    IPC分类号： G08B13/24 ,  G08B26/00

    CPC分类号： G08B13/2488

    摘要： A method for initializing an electronic article surveillance (EAS) system which transmits pulses into an interrogation zone and receives signals from the interrogation zone in a sequence of multiple successive transmit and receive windows during each line period of an AC mains supply energizing the EAS system, associated with a corresponding apparatus, comprises the steps of: (a.) determining whether a delay value is stored in a nonvolatile memory; (b.)if the delay value is stored in the nonvolatile memory, loading the stored delay value into a delay control register, terminating the initializing and omitting all remaining steps; (c.) if the delay value is not stored in the nonvolatile memory, loading a first delay value into the delay control register; (d.) determining whether noise in a certain receive window is less than a threshold level; (e.) if the noise is less than the threshold level, terminating the initializing and omitting all remaining steps; (f.) if the noise level is not less than the threshold level, loading a second delay value into the delay control register; (g.) determining if the EAS system is operating properly; (h.) if the EAS system is operating properly, terminating the initializing and omitting all remaining steps; (i.) if the EAS system is not operating properly, loading the first delay value into the delay control register; and, (j.) terminating the initializing.

    摘要翻译： 一种用于初始化电子物品监视（EAS）系统的方法，该系统在对EAS系统通电的交流主电源的每个行周期期间以多个连续的发送和接收窗口的顺序从询问区域发送脉冲并接收来自询问区域的信号， 与相应的装置相关联，包括以下步骤：（a）确定延迟值是否存储在非易失性存储器中; （b）如果延迟值存储在非易失性存储器中，将所存储的延迟值加载到延迟控制寄存器中，终止初始化和省略所有剩余步骤; （c）如果延迟值未被存储在非易失性存储器中，则将第一延迟值加载到延迟控制寄存器中; （d）确定某个接收窗口中的噪声是否小于阈值水平; （e）如果噪声小于阈值水平，则终止初始化和省略所有剩余步骤; （f），如果噪声电平不小于阈值电平，则将第二延迟值加载到延迟控制寄存器中; （例如）确定EAS系统是否正常运行; （h。）如果EAS系统正常运行，终止初始化和省略所有剩余步骤; （即，如果EAS系统运行不正常，将第一延迟值加载到延迟控制寄存器中; 和（j。）终止初始化。

    Automatic Configuration of New or Replacement Eas Network Devices
    4.
    发明申请
    Automatic Configuration of New or Replacement Eas Network Devices 审中-公开
    自动配置新的或替代的EAS网络设备

    公开(公告)号：US20080297347A1

    公开(公告)日：2008-12-04

    申请号：US11667990

    申请日：2005-11-16

    申请人： John Jay Clark ,  David Fallin ,  Scott Alan Tribbey ,  Jose Ramos

    发明人： John Jay Clark ,  David Fallin ,  Scott Alan Tribbey ,  Jose Ramos

    IPC分类号： G08B13/22

    CPC分类号： G08B13/2402

    摘要： A system and an analogous method which automatically configures electronic article surveillance (EAS) devices coupled to a network, includes a server coupled to the network. The server may include software or hardware which (1) listens on a specified port for connection requests from at least one coupled EAS network device; (2) accepts the connection request from at least one coupled EAS network device; (3) queries at least one coupled EAS network device for information relating to at least one EAS network device; and (4) configures at least one coupled EAS network device based upon the information received from at least one EAS network device.

    摘要翻译： 自动配置耦合到网络的电子商品监视（EAS）设备的系统和类似方法包括耦合到网络的服务器。 服务器可以包括软件或硬件，其（1）在指定端口上侦听来自至少一个耦合的EAS网络设备的连接请求; （2）接受来自至少一个耦合的EAS网络设备的连接请求; （3）至少查询一个耦合的EAS网络设备以获得与至少一个EAS网络设备有关的信息; 以及（4）基于从至少一个EAS网络设备接收的信息来配置至少一个耦合的EAS网络设备。