Adaptable detection threshold for RFID tags and chips

RFID tags, tag circuits, and methods are provided that reduce at least in part the distortion to received wireless signals, which is caused by interference in the environment. Two or more thresholds are used to digitize the received signal implemented by two or more demodulators. Multiple low pass a...

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Bibliographische Detailangaben
Hauptverfasser:	HYDE JOHN D, SUNDSTROM KURT E
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SIGNALLING TRANSMISSION TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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Beschreibung
Zusammenfassung:	RFID tags, tag circuits, and methods are provided that reduce at least in part the distortion to received wireless signals, which is caused by interference in the environment. Two or more thresholds are used to digitize the received signal implemented by two or more demodulators. Multiple low pass and digital filters may be implemented with the demodulators, allowing removal of narrow pulses caused by the interference and reduction of beat tone amplitude.