METHOD AND APPARATUS FOR DYNAMICALLY CHANGED IDENTIFIERS IN AN RFID TAG DEVICE
First Claim
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1. A method of dynamically operating a radio frequency identification (RFID) tag device for conducting transactions, comprising:
- powering the RFID tag device through an associated device interface of the RFID tag device;
receiving, at the RFID tag device, from an associated device over the associated device interface, a dynamic identifier to be used in a transaction;
receiving, subsequent to receiving the dynamic identifier, a read signal from a reader at an RFID interface; and
responding to the read signal over the RFID interface by transmitting the dynamic identifier to the reader; and
removing power from the associated device interface in response to responding to the read signal;
wherein the dynamic identifier is only stored in the RFID tag device while power is provided to the RFID tag device via the associated device interface.
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Abstract
A method and apparatus for an RFID tag device that uses dynamic identifiers for transactions rather than a fixed identifier. An associated device communicates with the RFID tag device and obtains dynamic identifiers for transactions and provides the dynamic identifiers to the RFID tag device. The RFID tag device is protocol-agile and can be configured to operate using different protocols to complete transactions.
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Citations
18 Claims
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1. A method of dynamically operating a radio frequency identification (RFID) tag device for conducting transactions, comprising:
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powering the RFID tag device through an associated device interface of the RFID tag device; receiving, at the RFID tag device, from an associated device over the associated device interface, a dynamic identifier to be used in a transaction; receiving, subsequent to receiving the dynamic identifier, a read signal from a reader at an RFID interface; and responding to the read signal over the RFID interface by transmitting the dynamic identifier to the reader; and removing power from the associated device interface in response to responding to the read signal; wherein the dynamic identifier is only stored in the RFID tag device while power is provided to the RFID tag device via the associated device interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of conducting a transaction wirelessly with a dynamic identifier, comprising:
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determining, by a mobile device, that the mobile device is approaching a vehicular toll gateway; obtaining, by the mobile device, a dynamic identifier to be used in a toll transaction with the vehicular toll gateway; providing power to a radio frequency identification (RFID) tag device over an associated device interface of the RFID tag device in response to determining that the mobile device is approaching the vehicular toll gateway; transmitting the dynamic identifier to the RFID tag device over the associated device interface of the RFID tag device; receiving, over an RFID interface of the RFID tag device, a read signal from the vehicular toll gateway; transmitting, to the vehicular toll gateway by the RFID tag device via the RFID interface, the dynamic identifier; and the RFID tag device indicating to the mobile device, via the associated device interface, completion of the transaction, wherein power is removed from the associated device interface in response to indicating completion of the transaction causing the dynamic identifier to be erased from the RFID tag device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for operating an RFID tag device for a transaction, comprising:
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obtaining, by a mobile device, a dynamic identifier to be used in the transaction; providing the dynamic identifier to a radio frequency identification (RFID) tag device over an associated device interface of the RFID tag device, thereby powering up the RFID tag device; maintaining the RFID tag device in a powered state to allow the RFID tag device to complete the transaction; receiving, from the RFID tag device over the associated device interface, at the mobile device, an indication that the transaction was completed; and the mobile device removing power from the RFID tag device, thereby causing the dynamic identifier to be erased from the RFID tag device. - View Dependent Claims (17, 18)
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Specification