ADAPTABLE BANDWIDTH RFID TAGS
    1.
    发明申请
    ADAPTABLE BANDWIDTH RFID TAGS 审中-公开
    适配带宽RFID标签

    公开(公告)号:WO2005101305A9

    公开(公告)日:2006-12-07

    申请号:PCT/US2005012490

    申请日:2005-04-12

    CPC classification number: G06K19/0723

    Abstract: RFID tags, tag circuits, and methods adapting the reception bandwidth. A tag has a decoder for decoding a first received wireless signal subject to a reception bandwidth setting. The tag also has a selector switch for transitioning to a different setting, such as by switching to using a different filter. A subsequently received second signal is decoded subject to the new reception bandwidth setting.

    Abstract translation: RFID标签,标签电路和适应接收带宽的方法。 标签具有解码器,用于对受到接收带宽设置的第一接收无线信号进行解码。 标签还具有用于转换到不同设置的选择器开关,例如通过切换到使用不同的滤波器。 随后接收的第二信号被解码经受新的接收带宽设置。

    REDUCING DATA-RATE ERRORS IN RFID SYSTEMS
    2.
    发明申请
    REDUCING DATA-RATE ERRORS IN RFID SYSTEMS 审中-公开
    降低RFID系统中的数据速率误差

    公开(公告)号:WO2006078882A2

    公开(公告)日:2006-07-27

    申请号:PCT/US2006/002002

    申请日:2006-01-19

    CPC classification number: G06K19/0723 G06K7/0008 H03J1/0058

    Abstract: RFID system components, such as readers and tags, communicate by a reader transmitting waveforms that encode a calibration symbol and a divide ratio. Tags include a processor to determine a backscatter link period result by dividing a count value representing the calibration symbol by the divide ratio and adding an adjustment. Tags modulate a backscatter waveform that includes symbols using a link period determined from the result.

    Abstract translation: 诸如读取器和标签的RFID系统组件由读取器传送,该读取器发送编码校准符号和分频比的波形。 标签包括通过将表示校准符号的计数值除以除法比率并且添加调整来确定反向散射链路周期结果的处理器。 标签使用从结果确定的链路周期调制包括符号的反向散射波形。

    REDUCING DATA-RATE ERRORS IN RFID SYSTEMS
    3.
    发明申请
    REDUCING DATA-RATE ERRORS IN RFID SYSTEMS 审中-公开
    降低RFID系统中的数据速率误差

    公开(公告)号:WO2006078882A3

    公开(公告)日:2007-04-12

    申请号:PCT/US2006002002

    申请日:2006-01-19

    CPC classification number: G06K19/0723 G06K7/0008 H03J1/0058

    Abstract: RFID system components, such as readers (110) and tags (120, 220), communicate by a reader (110) transmitting waveforms that encode a calibration symbol and a divide ratio. Tags (120, 220) include a processor (652) to determine a backscatter link period result by dividing a count value representing the calibration symbol by the divide ratio and adding an adjustment. Tags (120, 220) modulate a backscatter waveform that includes symbols using a link period determined from the result.

    Abstract translation: 诸如读取器(110)和标签(120,220)之类的RFID系统组件由发送校准符号和分频比的波形的读取器(110)通信。 标签(120,220)包括处理器(652),用于通过将表示校准符号的计数值除以分频比来确定后向散射链路周期结果,并且添加调整。 标签(120,220)使用从结果确定的链接周期来调制包括符号的反向散射波形。

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