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    • 4. 发明申请
    • BACKSCATTER LIMITED TAGS
    • BACKSCATTER有限公司标签
    • WO2009005965A1
    • 2009-01-08
    • PCT/US2008/066400
    • 2008-06-10
    • SYMBOL TECHNOLOGIES, INC.BEKRITSKY, BenjaminDRAGO, Randall, AllenSUN, Ming-Hao
    • BEKRITSKY, BenjaminDRAGO, Randall, AllenSUN, Ming-Hao
    • G06K7/00G06K19/077
    • G06K7/0008G06K19/0707G06K19/0712G06K19/07749H04Q2213/13095
    • Methods and apparatuses for secure communications of confidential information are provided. In an embodiment, a method of communicating with a population of radio frequency identification tags includes transmitting a first interrogation signal, receiving a response to the first interrogation signal from at least one RFID tag at a first received signal strength including at least a portion of a first identification code, and transmitting a second interrogation signal that includes a request for confidential information, a command to transmit a response to the second interrogation signal at a secure power level, and the first identification code. In another embodiment, a method for communicating with an RFID tag includes receiving an interrogation signal that includes a request for confidential information and transmitting a response to the interrogation signal at a secure power level. The response includes the confidential information.
    • 提供了机密信息的安全通信的方法和装置。 在一个实施例中,与群体的射频识别标签进行通信的方法包括发送第一询问信号,以至少一个RFID标签以至少一部分的第一接收信号强度接收对第一询问信号的响应, 第一识别码,以及发送包括对机密信息的请求的第二询问信号,以安全功率级发送对第二询问信号的响应的命令和第一识别码。 在另一个实施例中,用于与RFID标签通信的方法包括:接收询问信号,该询问信号包括对机密信息的请求,并以安全功率级别发送对询问信号的响应。 答复包括机密信息。