Generating a response by a radio frequency identification (RFID) tag within a field strength shell of interest
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United States of America Patent
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Aug 27, 2024
Grant Date -
Jun 8, 2023
app pub date -
Oct 17, 2022
filing date -
Nov 18, 2006
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Abstract
A method includes receiving, by a radio frequency identification (RFID) tag, a radio frequency (RF) signal from an RFID reader. When the RF signal includes a command, the method further includes interpreting, by the RFID tag, the command to determine a field strength shell of interest. When the RFID tag is in the field strength shell of interest, the method further includes further interpreting, by the RFID tag, the command to determine a type of request, and providing, by the RFID tag, a response regarding the type of request to include one or more of a matched impedance value generated in response to the RF signal, a field strength reference current generated in response to the RF signal, and a digital value representative of an environmental condition.
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