RMCK Law Group, PLC
Field-powered biometric device, and method of controlling a field-powered biometric device
A method of controlling operation of a field-powered biometric device comprising biometric acquisition circuitry, processing circuitry controllable to transition between a first functional state having a first power consumption and a second functional state having a second power consumption lower than the first power consumption, and power management circuitry. The method comprises the steps of monitoring, by the power management circuitry, a property indicative of a supply voltage to the processing circuitry; controlling, when the monitored property indicates that the supply voltage has fallen to a first threshold voltage, the processing circuitry to transition from the first functional state to the second functional state; and controlling, when the monitored property indicates that the supply voltage has increased to a second threshold voltage higher than the first threshold voltage, the processing circuitry to transition from the second functional state to the first functional state.
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H Y H G H H G G H G G G G G G H G G G G G G G
H04B Y02D H04B G06F H04W H04B G06K G06F H04W G06F G06F G06K G06F G06V G06F H04B G06F G06F G06F G06K G06V G06K G06K
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Nicholas Rolf Peter Benjamin David
Weiner Sundblad Almers Willcocks Carling