Power Management for an Active RFID Tag in Credit Card Form Factor
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United States of America Patent
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N/A
Issued Date -
Dec 13, 2012
app pub date -
Jan 5, 2012
filing date -
Jan 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system and method manages power in a dual frequency Active Radio Frequency Identification (RFID) transponder having a form factor substantially conforming to a credit card or smaller. The transponder may be conveniently carried in a customer's wallet, pocket, or purse. The transponder generally operates in a listen-only non-transmitting sleep mode in a low-power state. When entering a retail establishment, the transponder may receive an activation signal while operating in the sleep mode that activates the transponder and causes it to operate in a beacon mode. While in the beacon mode, the transponder transmits an identifier signal identifying the transponder. The identifier information may be used by a customer relationship management system within the retail establishment to provide a variety of customer management service. Subsequently, the transponder returns to the sleep mode, thereby enabling high battery life.
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