POWER HARVESTING IN A PASSIVE RFID DEVICE
A method of harvesting power in a passive RFID device 102 including a passive biometric authentication engine 120, comprises receiving a command from a powered RFID reader 104 and supplying power extracted from an excitation field of the RFID reader 104 to the biometric authentication engine 102 whi...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
27.04.2017
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A method of harvesting power in a passive RFID device 102 including a passive biometric authentication engine 120, comprises receiving a command from a powered RFID reader 104 and supplying power extracted from an excitation field of the RFID reader 104 to the biometric authentication engine 102 whilst the RFID reader 104 waits for a response to the command. Responsive to determining that a period that the RFID device 102 has been waiting for a response exceeds a predetermined threshold, and that a process being performed by the biometric authentication engine 120 has not been completed, a request for a wait time extension is sent to the RFID reader 104 to cause it to continue supplying the excitation field. |
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| AbstractList | A method of harvesting power in a passive RFID device 102 including a passive biometric authentication engine 120, comprises receiving a command from a powered RFID reader 104 and supplying power extracted from an excitation field of the RFID reader 104 to the biometric authentication engine 102 whilst the RFID reader 104 waits for a response to the command. Responsive to determining that a period that the RFID device 102 has been waiting for a response exceeds a predetermined threshold, and that a process being performed by the biometric authentication engine 120 has not been completed, a request for a wait time extension is sent to the RFID reader 104 to cause it to continue supplying the excitation field. |
| Author | WENDLING, JEAN-HUGUES |
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| Snippet | A method of harvesting power in a passive RFID device 102 including a passive biometric authentication engine 120, comprises receiving a command from a powered... |
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| Title | POWER HARVESTING IN A PASSIVE RFID DEVICE |
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