Apparatus and method to determine a frozen state of an object as a function of an RFID tag receptionparameter
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United States of America Patent
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Mar 13, 2018
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N/A
app pub date -
Jun 13, 2016
filing date -
Jun 26, 2015
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Abstract
A control circuit determines a reception parameter for an RFID tag that is attached to an object (such as an ice pack) and then determines a frozen state of the object as a function of that reception parameter. By one approach the RFID tag provides a transmission to support the aforementioned determinations, which transmission provides no data that explicitly represents temperature. The reception parameter can comprise, for example, an indication of received signal strength. So configured, a relatively higher indication of received signal strength can serve to determine that the object is and/or remains at least substantially frozen while a relatively lower indication of received signal strength can serve to determine that the object is not at least substantially frozen.
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