Radio-frequency identification (RFID) tag-to-tag autoconnect discovery, and related methods, circuits, and systems
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United States of America Patent
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Oct 20, 2015
Grant Date -
Nov 14, 2013
app pub date -
May 14, 2012
filing date -
May 14, 2012
priority date (Note) -
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Abstract
Methods, circuits, and systems are disclosed for automatically detecting connections between RFID tags. In one embodiment, a method is provided that includes periodically placing a charge on a node shared between a first RFID tag and a second RFID tag. The method also comprises sensing a voltage at the node at a time subsequent to the placing of the charge. The method also comprises automatically determining whether a connection exists between the first RFID tag and the second RFID tag based on the sensing of the voltage at the node. The first RFID tag and/or the second RFID tag may include circuitry configured to perform the method.
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