Systems and methods for amplifying a transmit signal in a RFID interrogator
    11.
    发明授权
    Systems and methods for amplifying a transmit signal in a RFID interrogator 有权
    用于放大RFID询问器中的发射信号的系统和方法

    公开(公告)号:US07054595B2

    公开(公告)日:2006-05-30

    申请号:US10658633

    申请日:2003-09-08

    申请人: Gary Bann

    发明人: Gary Bann

    IPC分类号: H04B7/00

    摘要: An RFID interrogator comprises an amplifier configured to amplify signals being transmitted by the RFID interrogator. The RFID interrogator also comprises a bypass path to direct received signals around the amplifier so that the amplifier does no block the reception of signals received from an RFID tag.

    摘要翻译: RFID询问器包括被配置为放大由RFID询问器发送的信号的放大器。 RFID询问器还包括将放大器周围的接收信号引导的旁路路径,使得放大器不阻止从RFID标签接收的信号的接收。

    SYSTEMS AND METHODS FOR SYNCHRONIZING A PLURALITY OF RFID INTERROGATORS IN A THEATRE OF OPERATION
    12.
    发明申请
    SYSTEMS AND METHODS FOR SYNCHRONIZING A PLURALITY OF RFID INTERROGATORS IN A THEATRE OF OPERATION 有权
    在操作剧场同步多个RFID干涉仪的系统和方法

    公开(公告)号:US20080018489A1

    公开(公告)日:2008-01-24

    申请号:US11766749

    申请日:2007-06-21

    IPC分类号: H04L7/00 H04Q5/22

    摘要: RFID tags are used for many purpose including tracking. RFID interrogators are used to retrieve information from tags. In many applications, a plurality of RFID interrogators are required. Synchronization between interrogators in the same theatre of operation is critical to ensure that their broadcasts do not interfere with each other. In fixed RFID interrogator applications, RFID interrogators can be wired together allowing a channel to synchronize the transmissions of the RFID interrogators. Methods described herein can ensure that synchronization is maintained in the event of the failure of a synchronizing master. Furthermore, additional methods for synchronizing RFID interrogators in wireless applications are described allowing synchronization in the absence of wired connections between interrogators.

    摘要翻译: RFID标签用于许多目的,包括跟踪。 RFID询问器用于从标签中检索信息。 在许多应用中,需要多个RFID询问器。 同一操作剧场中的询问器之间的同步至关重要,以确保他们的广播不会相互干扰。 在固定的RFID询问器应用中,RFID询问器可以连接在一起,允许信道同步RFID询问器的传输。 本文描述的方法可以确保在同步主机故障的情况下维持同步。 此外,描述了用于在无线应用中同步RFID询问器的附加方法,允许在询问器之间没有有线连接的情况下进行同步。

    Systems and methods for tracking the location of items within a controlled area
    13.
    发明授权
    Systems and methods for tracking the location of items within a controlled area 有权
    用于跟踪受控区域内物品位置的系统和方法

    公开(公告)号:US07038573B2

    公开(公告)日:2006-05-02

    申请号:US10658016

    申请日:2003-09-08

    申请人: Gary Bann

    发明人: Gary Bann

    IPC分类号: H04Q5/22

    摘要: A location tracking system for tracking the location of items within a controlled area comprises a plurality of RFID tags located according to the required accuracy of the location determinations. Vehicles configured to transport items being tracked include two RFID interrogators configured to acquire RFID information from the plurality of RFID tags and to transmit the RFID tag information to a location authority. The separation the two RFID interrogators is set based on the spacing of the plurality of RFID tags such that the required accuracy results. The location authority can then simply map the RFID tag information to coordinate information stored for each of the plurality of tags to obtain the location of the vehicle and, therefore, the item being transported.

    摘要翻译: 用于跟踪受控区域内的物品位置的位置跟踪系统包括根据位置确定的所需精度定位的多个RFID标签。 被配置为运送正在被跟踪的物品的车辆包括被配置为从多个RFID标签获取RFID信息并将RFID标签信息发送到位置机构的两个RFID询问器。 基于多个RFID标签的间隔设置两个RFID询问器的分离,使得得到所需的精度。 然后,位置管理员可以简单地将RFID标签信息映射到为多个标签中的每一个存储的坐标信息,以获得车辆的位置,并且因此获得被运送的物品。