Verifying identification of sequentially supplied fluids
    1.
    发明授权
    Verifying identification of sequentially supplied fluids 有权
    验证顺序供应的流体的识别

    公开(公告)号:US08952784B2

    公开(公告)日:2015-02-10

    申请号:US13478234

    申请日:2012-05-23

    IPC分类号: G06F7/04

    CPC分类号: B41J2/17546 G01F23/0007

    摘要: A method of verifying the identification of fluids to be supplied successively through a fluid-supply hose that selectively connects to successive movable, RFID-tagged fluid containers includes providing an RFID reading unit including an antenna. A sequence of reference container identification codes is received. A container-present indication indicating one of the containers is positioned so that its RFID tag is in the antenna range is received. In response, the RFID tag of that container is read using the RFID reading unit to determine an identification code of the container. A controller automatically verifies the determined container identification code against the first reference identification code in the sequence using a controller. The starting through verifying steps are repeated, using successive values from the sequence in the verifying step, until all values in the sequence have been verified against container identification codes read using the RFID reading unit.

    摘要翻译: 通过选择性地连接到连续的可移动RFID标签的流体容器的流体供应软管连续供应的流体识别的方法包括提供包括天线的RFID读取单元。 接收到参考容器识别码的序列。 指示其中一个容器的容器存在指示被定位成使得其RFID标签在天线范围内被接收。 作为响应,使用RFID读取单元读取该容器的RFID标签,以确定容器的识别码。 控制器使用控制器自动地以序列中的第一参考标识码来验证确定的容器识别码。 重复开始的验证步骤,使用来自验证步骤中的序列的连续值,直到序列中的所有值已被验证为使用RFID读取单元读取的容器识别码。

    Authorizing RFID reader and inhibiting skimming
    2.
    发明授权
    Authorizing RFID reader and inhibiting skimming 有权
    授权RFID阅读器和禁止撇号

    公开(公告)号:US08797144B2

    公开(公告)日:2014-08-05

    申请号:US13285274

    申请日:2011-10-31

    IPC分类号: G06F21/35

    CPC分类号: G06K7/10267

    摘要: An RFID reader system has an RFID tag and an RFID reader. The tag authorizes the RFID reader by receiving a plurality of successively-transmitted initial RFID read signals and determining respective initial-read signal power levels of the received initial RFID read signals. Using the determined initial-read signal power levels, a controller automatically selects an authorization sequence. A plurality of successively-transmitted authorization RFID signals are received sequentially, and respective authorization-signal power levels of the received authorization RFID read signals are determined. The determined authorization-signal power levels are automatically compared to the authorization sequence using the controller, so that the RFID reader is authorized if the determined authorization-signal power levels correspond to the authorization sequence.

    摘要翻译: RFID读取器系统具有RFID标签和RFID读取器。 标签通过接收多个连续发送的初始RFID读取信号并确定接收的初始RFID读取信号的相应的初始读取信号功率电平来授权RFID读取器。 使用确定的初始读取信号功率电平,控制器自动选择授权序列。 依次接收多个连续发送的授权RFID信号,确定接收到的授权RFID读取信号的各自的授权信号功率电平。 所确定的授权信号功率电平与使用控制器的授权序列自动进行比较,从而如果所确定的授权信号功率电平对应于授权序列,则RFID读取器被授权。

    Detecting RFID tag and inhibiting skimming
    3.
    发明授权
    Detecting RFID tag and inhibiting skimming 有权
    检测RFID标签和抑制撇号

    公开(公告)号:US09000892B2

    公开(公告)日:2015-04-07

    申请号:US13285264

    申请日:2011-10-31

    IPC分类号: G06F21/35 G06K7/10

    摘要: A method of detecting an RFID tag includes transmitting a bait RFID read signal at a bait power level and a simulated response signal at a simulated-response power level. A selected reader frequency is monitored for a selected detection time. A skimmer is determined to be present if a skimmer RFID read signal is detected during that time. If a skimmer is not determined to be present, multiple read signals are transmitted sequentially, each signal at a respective read power level. At least one of the read power levels is lower than the bait power level, at least one of the read power levels is lower than the simulated-response power level, and at least two of the read power levels are different from each other. A selected response frequency for a tag is monitored for a response from an RFID tag.

    摘要翻译: 检测RFID标签的方法包括以诱饵功率电平发射诱饵RFID读取信号和以模拟响应功率电平发送模拟的响应信号。 监视所选择的读取器频率以选择检测时间。 如果在该时间内检测到撇渣器RFID读取信号,则确定撇渣器存在。 如果不确定分离器存在,则以相应的读取功率级顺序地发送多个读取信号。 读取功率电平中的至少一个低于诱饵功率电平,读取功率电平中的至少一个低于模拟响应功率电平,并且至少两个读取功率电平彼此不同。 监视来自RFID标签的响应的标签的选定的响应频率。

    AUTHORIZING RFID READER AND INHIBITING SKIMMING
    4.
    发明申请
    AUTHORIZING RFID READER AND INHIBITING SKIMMING 有权
    授权RFID读写器和抑制机芯

    公开(公告)号:US20130106577A1

    公开(公告)日:2013-05-02

    申请号:US13285274

    申请日:2011-10-31

    IPC分类号: G06K7/01

    CPC分类号: G06K7/10267

    摘要: An RFID reader system has an RFID tag and an RFID reader. The tag authorizes the RFID reader by receiving a plurality of successively-transmitted initial RFID read signals and determining respective initial-read signal power levels of the received initial RFID read signals. Using the determined initial-read signal power levels, a controller automatically selects an authorization sequence. A plurality of successively-transmitted authorization RFID signals are received sequentially, and respective authorization-signal power levels of the received authorization RFID read signals are determined. The determined authorization-signal power levels are automatically compared to the authorization sequence using the controller, so that the RFID reader is authorized if the determined authorization-signal power levels correspond to the authorization sequence.

    摘要翻译: RFID读取器系统具有RFID标签和RFID读取器。 标签通过接收多个连续发送的初始RFID读取信号并确定接收的初始RFID读取信号的相应的初始读取信号功率电平来授权RFID读取器。 使用确定的初始读取信号功率电平,控制器自动选择授权序列。 依次接收多个连续发送的授权RFID信号,确定接收到的授权RFID读取信号的各自的授权信号功率电平。 所确定的授权信号功率电平与使用控制器的授权序列自动进行比较,从而如果所确定的授权信号功率电平对应于授权序列,则RFID读取器被授权。

    VERIFYING IDENTIFICATION OF SEQUENTIALLY SUPPLIED FLUIDS
    5.
    发明申请
    VERIFYING IDENTIFICATION OF SEQUENTIALLY SUPPLIED FLUIDS 有权
    验证序列供应流体的鉴定

    公开(公告)号:US20130314206A1

    公开(公告)日:2013-11-28

    申请号:US13478234

    申请日:2012-05-23

    IPC分类号: G06F7/04

    CPC分类号: B41J2/17546 G01F23/0007

    摘要: A method of verifying the identification of fluids to be supplied successively through a fluid-supply hose that selectively connects to successive movable, RFID-tagged fluid containers includes providing an RFID reading unit including an antenna. A sequence of reference container identification codes is received. A container-present indication indicating one of the containers is positioned so that its RFID tag is in the antenna range is received. In response, the RFID tag of that container is read using the RFID reading unit to determine an identification code of the container. A controller automatically verifies the determined container identification code against the first reference identification code in the sequence using a controller. The starting through verifying steps are repeated, using successive values from the sequence in the verifying step, until all values in the sequence have been verified against container identification codes read using the RFID reading unit.

    摘要翻译: 通过选择性地连接到连续的可移动RFID标签的流体容器的流体供应软管连续供应的流体识别的方法包括提供包括天线的RFID读取单元。 接收到参考容器识别码的序列。 指示其中一个容器的容器存在指示被定位成使得其RFID标签在天线范围内被接收。 作为响应,使用RFID读取单元读取该容器的RFID标签,以确定容器的识别码。 控制器使用控制器自动地以序列中的第一参考标识码来验证确定的容器识别码。 重复开始的验证步骤,使用来自验证步骤中的序列的连续值,直到序列中的所有值已被验证为使用RFID读取单元读取的容器识别码。

    RFID system with multiple tag transmit frequencies
    6.
    发明授权
    RFID system with multiple tag transmit frequencies 有权
    具有多个标签发射频率的RFID系统

    公开(公告)号:US08937531B2

    公开(公告)日:2015-01-20

    申请号:US13532821

    申请日:2012-06-26

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/10069

    摘要: An RFID system has an active tag with one antenna inside, and one outside, an RF-blocking enclosure having a port with a selected shortest dimension. The RFID reader is located outside the enclosure and uses a selected RF read frequency range. The RFID tag simultaneously transmits on a plurality of frequencies corresponding to respective wavelengths smaller than the selected shortest dimension, so that a respective beat frequency is defined between two of the frequencies. The beat frequency is within the selected RF uplink frequency range. The tag transmits a first signal at a first one of the plurality of frequencies using the interior antenna and a second signal at a second, different one of the plurality of frequencies using the exterior antenna.

    摘要翻译: RFID系统具有内部具有一个天线的有源标签,以及一个外部的具有选定的最短尺寸的端口的RF阻挡外壳。 RFID读取器位于机箱外部,并使用选定的RF读取频率范围。 RFID标签同时在对应于小于所选择的最短维度的波长的多个频率上发送,从而在两个频率之间定义相应的拍频。 节拍频率在选定的RF上行链路频率范围内。 标签使用内部天线以多个频率中的第一个频率发射第一信号,并使用外部天线以第二个不同的一个频率发送第二信号。

    RFID SYSTEM WITH BARRIERS AND KEY ANTENNAS
    7.
    发明申请
    RFID SYSTEM WITH BARRIERS AND KEY ANTENNAS 有权
    RFID系统与障碍物和主要天线

    公开(公告)号:US20130342323A1

    公开(公告)日:2013-12-26

    申请号:US13532874

    申请日:2012-06-26

    IPC分类号: G06K7/01

    摘要: An RFID system includes a reader with antenna, a first barrier, a tag with a link antenna, a second barrier, and two key antennas connected to the tag, mechanically arranged in that order. The first barrier has two or more apertures in it to produce an interference pattern of a security signal from the reader. The security signal interference pattern passes at least partly through the second barrier. One of the key antennas is at a peak of the pattern after passing through the second barrier, and one is not. The tag includes a controller responsive to a downlink signal from the reader to transmit an uplink signal using the link antenna, but only if the downlink signal is preceded by the security signal and the security signal is received more strongly by the key antenna at the peak than by the other key antenna.

    摘要翻译: RFID系统包括具有天线的读取器,第一屏障,具有链路天线的标签,第二屏障和连接到标签的两个键天线,以该顺序机械地布置。 第一屏障在其中具有两个或更多个孔,以产生来自读取器的安全信号的干涉图案。 安全信号干扰图案至少部分地穿过第二屏障。 其中一个关键的天线是通过第二个屏障后的图案的高峰,一个不是。 标签包括响应于来自读取器的下行链路信号的控制器,以使用链路天线发送上行链路信号,但是仅当下行链路信号在安全信号之前时,安全信号被峰值处的密钥天线更强地接收 比另一个关键天线。

    RFID SYSTEM WITH CONFIGURABLE RF PORT
    8.
    发明申请
    RFID SYSTEM WITH CONFIGURABLE RF PORT 有权
    具有可配置RF端口的RFID系统

    公开(公告)号:US20130342318A1

    公开(公告)日:2013-12-26

    申请号:US13532826

    申请日:2012-06-26

    IPC分类号: G06K7/01

    CPC分类号: G06K19/07327

    摘要: An active RFID tag has an antenna inside RF-blocking enclosure having a port with a selected shortest dimension. An RFID reader located outside the enclosure at a reader position transmits a downlink RF signal through the port as a directional RF signal on a downlink carrier frequency corresponding to a downlink wavelength smaller than the selected shortest dimension. The port is selectively configured so that the directional downlink RF signal can pass through the port in an access mode during a selected access time interval and are attenuated by at least 60 dB in a restricted mode during a selected restricted time interval that does not overlap with the access time interval.

    摘要翻译: 有源RFID标签在具有选定的最短尺寸的端口的RF阻挡外壳内具有天线。 位于读取器位置外部的RFID读取器通过端口将下行链路RF信号作为对应于小于所选择的最短维度的下行链路波长的下行链路载波上的定向RF信号来发送。 端口被选择性地配置为使得定向下行链路RF信号可以在所选择的访问时间间隔期间以访问模式通过端口,并且在受限模式期间在与第一接入时间间隔不重叠的选择的限制时间间隔期间衰减至少60dB 访问时间间隔。

    RFID reading system using RF grating
    9.
    发明授权
    RFID reading system using RF grating 有权
    RFID读取系统采用射频光栅

    公开(公告)号:US09189662B2

    公开(公告)日:2015-11-17

    申请号:US13532845

    申请日:2012-06-26

    IPC分类号: H04Q5/22 G06K7/01 G06K19/073

    CPC分类号: G06K7/01 G06K19/07327

    摘要: Apparatus for reading an RFID tag includes an RF-blocking enclosure having a port and adapted to receive through the port a non-RFID-active object having an RFID tag affixed thereto. An RFID reader has a reader antenna located outside the enclosure. The antenna transmits an RF downlink signal in a particular direction. An RF grating is arranged between the reader antenna and the port so that, after the enclosure receives the object having the tag, the port is located in the transmit direction from the reader antenna, and RF energy transmitted from the reader antenna has a selected linear polarization after passing through the grating.

    摘要翻译: 用于读取RFID标签的装置包括具有端口并适于通过端口接收具有固定到其上的RFID标签的非RFID活动对象的RF阻挡外壳。 RFID读取器具有位于外壳外部的读取器天线。 天线沿特定方向发射RF下行链路信号。 在读取器天线和端口之间布置RF光栅,使得在外壳接收到具有标签的对象之后,端口从读取器天线位于发送方向,并且从读取器天线发送的RF能量具有选择的线性 通过光栅后的极化。

    RFID SYSTEM WITH MULTIPLE TAG TRANSMIT FREQUENCIES
    10.
    发明申请
    RFID SYSTEM WITH MULTIPLE TAG TRANSMIT FREQUENCIES 有权
    具有多个标签传输频率的RFID系统

    公开(公告)号:US20130342317A1

    公开(公告)日:2013-12-26

    申请号:US13532821

    申请日:2012-06-26

    IPC分类号: G06K7/01

    CPC分类号: G06K7/10069

    摘要: An RFID system has an active tag with one antenna inside, and one outside, an RF-blocking enclosure having a port with a selected shortest dimension. The RFID reader is located outside the enclosure and uses a selected RF read frequency range. The RFID tag simultaneously transmits on a plurality of frequencies corresponding to respective wavelengths smaller than the selected shortest dimension, so that a respective beat frequency is defined between two of the frequencies. The beat frequency is within the selected RF uplink frequency range. The tag transmits a first signal at a first one of the plurality of frequencies using the interior antenna and a second signal at a second, different one of the plurality of frequencies using the exterior antenna.

    摘要翻译: RFID系统具有内部具有一个天线的有源标签,以及一个外部的具有选定的最短尺寸的端口的RF阻挡外壳。 RFID读取器位于机箱外部,并使用选定的RF读取频率范围。 RFID标签同时在对应于小于所选择的最短维度的波长的多个频率上发送,从而在两个频率之间定义相应的拍频。 节拍频率在选定的RF上行链路频率范围内。 标签使用内部天线以多个频率中的第一个频率发射第一信号,并使用外部天线以第二个不同的一个频率发送第二信号。