LOWER POWER BATTERY-ASSISTED RFID TAG HAVING IMPROVED RECOGNITION DISTANCE, AND WAKE-UP METHOD THEREOF
    4.
    发明申请
    LOWER POWER BATTERY-ASSISTED RFID TAG HAVING IMPROVED RECOGNITION DISTANCE, AND WAKE-UP METHOD THEREOF 有权
    具有改进的识别距离的下电力电池辅助RFID标签及其唤醒方法

    公开(公告)号:US20080122625A1

    公开(公告)日:2008-05-29

    申请号:US11928288

    申请日:2007-10-30

    IPC分类号: G08B13/14

    CPC分类号: G06K19/07749 G06K19/0705

    摘要: Provided are a radio frequency identification (RFID) tag and a wake-up method thereof. The RFID tag includes: a power source that supplies a driving voltage; a continuous wave detector that receives the driving voltage from the power supply so as to detect a continuous wave in a signal received from an RFID tag reader; a command detector that selectively receives the driving voltage and detects a command in the signal; and a controller that executes the command detected by the command detector by supplying the driving voltage to the command detector if the continuous wave is detected, and stops the driving voltage from being supplied to the command detector if no command is received from the command detector for a predetermined time period.

    摘要翻译: 提供射频识别(RFID)标签及其唤醒方法。 RFID标签包括:提供驱动电压的电源; 连续波检测器,其从所述电源接收所述驱动电压,以便检测从RFID标签读取器接收的信号中的连续波; 命令检测器,其选择性地接收所述驱动电压并检测所述信号中的命令; 以及控制器,如果检测到连续波,则执行由指令检测器检测到的指令,将驱动电压提供给指令检测器,并且如果没有从命令检测器接收到命令,则将驱动电压提供给命令检测器, 预定时间段。

    METHOD FOR READING TAG IN MOBILE RFID ENVIRONMENT
    5.
    发明申请
    METHOD FOR READING TAG IN MOBILE RFID ENVIRONMENT 审中-公开
    在移动RFID环境中读取标签的方法

    公开(公告)号:US20070236332A1

    公开(公告)日:2007-10-11

    申请号:US11689609

    申请日:2007-03-22

    IPC分类号: H04Q5/22

    CPC分类号: G01D21/00

    摘要: Provided is a method for reading a tag in a mobile Radio Frequency Identification (RFID) environment. The tag reading method effectively identifies a tag by repeatedly transmitting a tag identification request in a predetermined time to prevent collision among RFID readers, when a plurality of RFID readers access to a tag. The method for reading a tag in a mobile RFID environment, which includes the steps of: a) transmitting a tag identification request signal to a tag; b) waiting for an acknowledgement signal to be transmitted from the tag; and c) when no acknowledgement signal is transmitted from the tag, retransmitting the tag identification request signal after a predetermined delay time passes.

    摘要翻译: 提供了一种在移动射频识别(RFID)环境中读取标签的方法。 标签读取方法在多个RFID阅读器访问标签时,通过在预定时间内重复发送标签识别请求来有效地识别标签,以防止RFID读取器之间的冲突。 一种用于在移动RFID环境中读取标签的方法,包括以下步骤:a)向标签发送标签识别请求信号; b)等待从标签发送确认信号; 以及c)当没有从所述标签发送确认信号时,经过预定延迟时间之后重传所述标签识别请求信号。

    Data storing apparatus and method for RFID tags with sensors
    6.
    发明申请
    Data storing apparatus and method for RFID tags with sensors 失效
    具有传感器的RFID标签的数据存储装置和方法

    公开(公告)号:US20070132588A1

    公开(公告)日:2007-06-14

    申请号:US11542479

    申请日:2006-10-03

    IPC分类号: G08B13/14 G08B1/08 H04Q5/22

    摘要: Provided is a data storing apparatus and method for Radio Frequency Identification (RFID) tags with sensors. The apparatus includes: a first storing block which includes a kill password storage and an access password storage; a second storing block which includes an Electronic Product Code (EPC) storage, a protocol control storage, and an error check storage storing a Cyclic Redundancy Checking (CRC) code for detecting a transmission error; a third storing block which includes a tag identifier storage storing a tag identifier including a manufacture model and a serial number of the tag; and a fourth storing block which includes an initial sensor data storage storing initial information of the sensor, a real-time information storage, a maximum/minimum data storage storing maximum/minimum values, a sensor data storage storing sensing data actually measured through the sensor embedded in the RFID tag.

    摘要翻译: 提供了一种具有传感器的射频识别(RFID)标签的数据存储装置和方法。 该装置包括:第一存储块,其包括杀死密码存储和访问密码存储; 包括电子产品代码(EPC)存储器,协议控制存储器和存储用于检测传输错误的循环冗余校验(CRC)代码的错误检查存储器的第二存储块; 第三存储块,其包括存储包括标签的制造模型和序列号的标签标识符的标签标识符存储器; 以及第四存储块,其包括存储传感器的初始信息的初始传感器数据存储器,实时信息存储器,存储最大/最小值的最大/最小数据存储器,存储通过传感器实际测量的感测数据的传感器数据存储器 嵌入RFID标签。

    Transmit/receive antenna system having offset feed points for high isolation
    8.
    发明授权
    Transmit/receive antenna system having offset feed points for high isolation 有权
    发射/接收天线系统具有高隔离的补偿馈电点

    公开(公告)号:US08081062B2

    公开(公告)日:2011-12-20

    申请号:US12088567

    申请日:2005-12-29

    IPC分类号: G08B25/10 H01Q21/00

    CPC分类号: H01P5/18

    摘要: Provided is an antenna system with high isolation. The high-isolation antenna has transmission ports of a transmission antenna and reception ports of a reception antenna highly isolated from each other by using quadrature hybrid couplers. The antenna system includes: a transmission antenna having two feed points for transmitting signals; a reception antenna having two feed points for receiving signals; a transmission hybrid coupler which is connected to the two feed points of the transmission antenna and transmits transmission signals which have a phase difference of 90° with each other; and a reception hybrid coupler which is connected to the two feed points of the reception antenna and receives reception signals which have a phase difference of 90° with each other. The signals leaking from the two feed points of the transmission antenna to the two feed points of the reception antenna are offset.

    摘要翻译: 提供了具有高隔离度的天线系统。 高隔离天线具有通过使用正交混合耦合器彼此高度隔离的发送天线和接收天线的接收端口的传输端口。 天线系统包括:发射天线,具有用于发射信号的两个馈电点; 具有用于接收信号的两个馈送点的接收天线; 传输混合耦合器,其连接到发射天线的两个馈电点,并发射相位差为90°的发射信号; 以及接收混合耦合器,其连接到接收天线的两个馈电点,并接收彼此具有90°的相位差的接收信号。 从发送天线的两个馈电点泄漏到接收天线的两个馈电点的信号被偏移。