RFID system preventing recognition error and communication method thereof
    71.
    发明申请
    RFID system preventing recognition error and communication method thereof 有权
    RFID系统防止识别错误及其通信方法

    公开(公告)号:US20090184838A1

    公开(公告)日:2009-07-23

    申请号:US12315562

    申请日:2008-12-04

    IPC分类号: G08B21/00 H04Q5/22

    摘要: A radio frequency identification (RFID) tag is provided that prevents a recognition error of the RFID tag due to the occurrence of a shadow region. The RFID tag includes a first tag performing communication with an RFID reader and a second tag connected to the first tag and suitable for use with a different communication type from the first tag. Thus, when information stored in the first tag can not be read, the second tag is activated and externally transmits information and when information stored in the first tag can be read, the second tag is 1o deactivated and does not externally transmit information. A communication method of an RFID system including an RFID reader communicating with an RFID tag is also provided.

    摘要翻译: 提供了射频识别(RFID)标签,其防止由于阴影区域的发生导致的RFID标签的识别错误。 RFID标签包括执行与RFID读取器的通信的第一标签和连接到第一标签的适于与来自第一标签的不同通信类型一起使用的第二标签。 因此,当不能读取存储在第一标签中的信息时,第二标签被激活并从外部发送信息,并且当可以读取存储在第一标签中的信息时,第二标签被取消,并且不外部传送信息。 还提供了包括与RFID标签通信的RFID读取器的RFID系统的通信方法。

    ELECTRONIC LOCATING SYSTEMS
    72.
    发明申请
    ELECTRONIC LOCATING SYSTEMS 有权
    电子定位系统

    公开(公告)号:US20080258902A1

    公开(公告)日:2008-10-23

    申请号:US12016807

    申请日:2008-01-18

    IPC分类号: G08B26/00

    摘要: Methods and apparatus are disclosed for location of objects to facilitate retrieval, filing, security, inventory stock-keeping and the like. The methods and apparatus employ a tag element associated with each object-to-be-located, and interrogation system for searching one or more spatial regions for such tagged items, as well as mechanisms for identifying objects within the interrogated region.

    摘要翻译: 公开了用于物体位置的方法和装置,以便于检索,归档,安全性,库存库存等。 方法和装置采用与每个待定位物体相关联的标签元件和用于搜索一个或多个空间区域以获得这样的标记物品的询问系统,以及用于识别询问区域内的物体的机构。

    Electronic locating systems
    73.
    发明授权
    Electronic locating systems 失效
    电子定位系统

    公开(公告)号:US07321296B2

    公开(公告)日:2008-01-22

    申请号:US11124844

    申请日:2005-05-09

    IPC分类号: G08B26/00

    摘要: Methods and apparatus are disclosed for location of objects to facilitate retrieval, filing, security, inventory stock-keeping and the like. The methods and apparatus employ a tag element associated with each object-to-be-located, and interrogation system for searching one or more spatial regions for such tagged items, as well as mechanisms for identifying objects within the interrogated region.

    摘要翻译: 公开了用于物体位置的方法和装置,以便于检索,归档,安全性,库存库存等。 方法和装置采用与每个待定位物体相关联的标签元件和用于搜索一个或多个空间区域以获得这样的标记物品的询问系统,以及用于识别询问区域内的物体的机构。

    System for detecting radio-frequency identification tags
    74.
    发明授权
    System for detecting radio-frequency identification tags 有权
    用于检测射频识别标签的系统

    公开(公告)号:US07119692B2

    公开(公告)日:2006-10-10

    申请号:US10705677

    申请日:2003-11-10

    IPC分类号: G08B13/14

    摘要: Techniques for detecting radio-frequency identification (RFID) tags are disclosed. For example, an exit control system is described that detects unauthorized removal of articles from a protected facility. A series of antennas are setup to produce interrogation corridors located near the exit of the protected area. RFID tags are attached to the articles to be protected. Each tag includes information that uniquely identifies the article to which it is affixed and status information as to whether the articles removal from the facility is authorized. The RF reader outputs RF signals through the antennas to create electromagnetic fields within the interrogation corridors. The reader outputs RF power from a single port to the multiple antennas via a splitter/combiner. In this way, a single RF reader with only one transmitter/receiver port simultaneously interrogates multiple antennas. A variety of techniques are described by which the reader can detect the removal of an unauthorized article.

    摘要翻译: 公开了用于检测射频识别(RFID)标签的技术。 例如,描述了一种检测来自受保护设施的未经授权的物品移除的出口控制系统。 设置一系列天线以产生位于保护区出口附近的询问走廊。 RFID标签附着在要保护的物品上。 每个标签包括唯一标识其所附文章的信息以及关于从该设施移除的文章是否被授权的状态信息。 RF读取器通过天线输出RF信号,以在询问走廊内创建电磁场。 读取器通过分离器/组合器将单个端口的RF功率输出到多个天线。 以这种方式,只有一个发射机/接收机端口的单个RF读取器同时询问多个天线。 描述了各种技术,读者可以通过该技术检测未经授权的文章的移除。

    Package-integrated RF relay
    75.
    发明授权
    Package-integrated RF relay 失效
    封装集成射频继电器

    公开(公告)号:US07091859B2

    公开(公告)日:2006-08-15

    申请号:US10341849

    申请日:2003-01-13

    IPC分类号: G08B13/14

    摘要: Containers for holding goods are provided with a relay conductive structure for relaying RFID tags signals from one side of the container to another. The conductive structure includes a first antenna on the first side of the container, a second antenna on a second side of the container and a transmission line connecting the antennas. When the containers are arranged in a stack, the relay of RFID signals past each row of containers enables the interrogation toward the rear of the stack without disassembling the stack of containers.

    摘要翻译: 用于保持货物的容器设置有用于将RFID标签信号从容器的一侧传递到另一侧的继电器导电结构。 导电结构包括在容器的第一侧上的第一天线,在容器的第二侧上的第二天线和连接天线的传输线。 当容器布置成堆叠时,RFID信号的继电器经过每排容器使得能够在不拆卸容器堆的情况下向堆叠的后部询问。

    Method, system, and apparatus for communications in a RFID system
    76.
    发明申请
    Method, system, and apparatus for communications in a RFID system 有权
    用于RFID系统中通信的方法,系统和装置

    公开(公告)号:US20060061474A1

    公开(公告)日:2006-03-23

    申请号:US11272135

    申请日:2005-11-14

    IPC分类号: G08B13/14

    摘要: A method, system, and apparatus for interrogating a radio frequency identification (RFID) tag population are described. Tags are interrogated by a reader. The reader and tags engage in communication according to communications algorithms, where data symbols are exchanged between the reader and tags. Furthermore, a reader implicitly controls the operating state of every tag in the tag population by transmitting a single data symbol. Bit patterns may be collected from the tags by the reader, using a variety of interrogation techniques. In a general interrogation, the reader exchanges symbols with the tag population to interrogate the entire tag population. In a specific interrogation, a reader exchanges symbols with the tag population to target a particular tag identification number. Tags may also be placed in a superposition state by the reader, where they respond whenever a received data symbol matches the next bit of their identification number.

    摘要翻译: 描述了用于询问射频识别(RFID)标签群的方法,系统和装置。 标签被读者询问。 读取器和标签根据通信算法进行通信,其中在读取器和标签之间交换数据符号。 此外,读取器通过传送单个数据符号来隐含地控制标签群中每个标签的操作状态。 读取器可以使用各种询问技术从标签中收集位模式。 在一般询问中,读者与标签群交换符号以询问整个标签群。 在特定的询问中,读者与标签群交换符号以针对特定的标签标识号。 标签也可以由读取器置于叠加状态,其中当接收的数据符号与其识别号码的下一位匹配时,它们响应。

    Methods and apparatuses to identify devices
    77.
    发明申请
    Methods and apparatuses to identify devices 有权
    识别设备的方法和设备

    公开(公告)号:US20050263591A1

    公开(公告)日:2005-12-01

    申请号:US10915725

    申请日:2004-08-09

    申请人: John Smith

    发明人: John Smith

    摘要: An apparatus and method to identify devices including a first set of commands to identify devices in a first state and a second set of commands to identify devices in a second state, wherein devices identified in the first state are placed in the second state and devices identified in the second state are placed in the first state.

    摘要翻译: 一种用于识别包括用于识别处于第一状态的设备的第一组命令的设备和方法,以及用于识别处于第二状态的设备的第二组命令,其中在第一状态下识别的设备被置于第二状态,并且识别出设备 在第二状态处于第一状态。

    Transfer function system for determining an identifier on a surface acoustic wave identification tag and method of operating the same
    78.
    发明授权
    Transfer function system for determining an identifier on a surface acoustic wave identification tag and method of operating the same 有权
    用于确定表面声波识别标签上的标识符的传递函数系统及其操作方法

    公开(公告)号:US06958696B2

    公开(公告)日:2005-10-25

    申请号:US10268108

    申请日:2002-10-09

    IPC分类号: G08B13/24 H03H9/64 G08B13/14

    摘要: A transfer function system for determining an identifier on a surface acoustic wave (SAW) identification tag and a method of operating the same. In one embodiment the system provides for (1) generating a radio frequency (RF) interrogation signal that causes a transducer located on a piezoelectric substrate to produce an initial acoustic pulse that reflects off of a plurality of reflectors arranged according to time and phase position on the substrate to yield response acoustic pulses, the transducer generating an RF response signal from the response acoustic pulses; and (2) determining the identifier by decoding the RF response signal in view of predefined time, phase and amplitude parameters.

    摘要翻译: 一种用于确定表面声波(SAW)识别标签上的标识符的传递函数系统及其操作方法。 在一个实施例中,系统提供(1)产生射频(RF)询问信号,其使位于压电衬底上的换能器产生初始声脉冲,其从根据时间和相位位置布置的多个反射器反射出来 所述基板产生响应声脉冲,所述换能器从响应声脉冲产生RF响应信号; 和(2)根据预定义的时间,相位和幅度参数,通过解码RF响应信号来确定标识符。