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METHOD OF MEASURING DISTANCE BOUND USING RADIO FREQUENCY IDENTIFICATION (RFID) AND SYSTEM THEREOF

  • US 20140062761A1
  • Filed: 01/02/2013
  • Published: 03/06/2014
  • Est. Priority Date: 08/29/2012
  • Status: Active Grant
First Claim
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1. A method in which a tag measures a distance bound, comprising:

  • receiving a plurality of queries from a reader;

    deciding a response based on a query of the plurality of queries and a first bit created in advance through protocol initialization with the reader;

    determining whether or not to transmit the response based on another query of the plurality of queries and a second bit created in advance through the protocol initialization with the reader;

    transmitting the response to the reader if it is determined that the response has to be transmitted; and

    calculating a message authentication code regarding the receiving of the plurality of queries, the deciding of the response, the determining of whether or not to transmit the response, and the transmitting of the response, and transmitting the message authentication code to the reader.

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