Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 8, 2019
Patent Application Number
15515785
Date Filed
October 12, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of harvesting power in a passive RFID device including a passive biometric authentication engine, including the steps of receiving a command from a powered RFID reader and supplying power extracted from an excitation field of the RFID reader to the biometric authentication engine whilst the RFID reader waits for a response to the command. Responsive to determining that a period that the RFID device has been waiting for a response exceeds a predetermined threshold, and that a process being performed by the biometric authentication engine has not been completed, a request for a wait time extension is sent to the RFID reader to cause it to continue supplying the excitation field.
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