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公开(公告)号:US20050212674A1
公开(公告)日:2005-09-29
申请号:US10891894
申请日:2004-07-14
申请人: Dimitri Desmons , Ronald Oliver , Christopher Diorio , Todd Humes
发明人: Dimitri Desmons , Ronald Oliver , Christopher Diorio , Todd Humes
IPC分类号: G06K19/077 , G08B13/14
CPC分类号: G06K19/07767 , G06K19/07749
摘要: RFID tags have an on-chip antenna and an off-chip antenna. One of the antennas can become uncoupled if the proper signal is received, while the other antenna may still operate. The uncoupled antenna can be the larger one, for example the off-chip antenna. Then the tag can then be read only by the smaller antenna, which effectively reduces the range of the RFID tag, but without disabling it entirely.
摘要翻译: RFID标签具有片上天线和片外天线。 如果接收到适当的信号,其中一个天线可能会脱耦,而另一个天线仍然可以工作。 非耦合天线可以是较大的天线,例如片外天线。 那么标签然后可以被较小的天线读取,这有效地减少了RFID标签的范围,但是没有完全禁用它。