EXCESS RADIO-FREQUENCY (RF) POWER STORAGE IN RF IDENTIFICATION (RFID) TAGS, AND RELATED SYSTEMS AND METHODS

EXCESS RADIO-FREQUENCY (RF) POWER STORAGE IN RF IDENTIFICATION (RFID) TAGS, AND RELATED SYSTEMS AND METHODS

Excess radio-frequency (RF) power storage in RF identification (RFID) tags, and related systems and methods are disclosed. The RFID tag is configured to operate with RF power received in wireless RF signals (22) from a RFID tag antenna (26) if received RF power meets or exceeds an operational thresh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOWNIE, John, David, WAGNER, Richard, Edward, WHITING, Matthew, Scott, SUTHERLAND, James, Scott, NEDERLOF, Leo, TAYLOR, Mark, Peter
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:Excess radio-frequency (RF) power storage in RF identification (RFID) tags, and related systems and methods are disclosed. The RFID tag is configured to operate with RF power received in wireless RF signals (22) from a RFID tag antenna (26) if received RF power meets or exceeds an operational threshold power for the RFID tag. The RFID tag is also configured to store excess energy derived from excess received RF power in an energy storage device (36) if the received RF power exceeds the operational threshold power for the RFID tag. Thus, when RF power received by the RFID tag is not sufficient for operation, the RFID tag can operate from power provided by previously stored excess energy in the energy storage device.