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US 11,596,364 B2Granted
Method and system for detecting events in an input signal using volatile memristor state change
AssigneeUniversity of Southampton
InventorsIsha Gupta, Alexantrou Serb, Themistoklis Prodromakis
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Abstract
The present invention provides a method for detecting events in an input signal. The method uses a volatile resistive switching component to detect the events in the input signal. The method comprising identifying the events based on sampling an output from the resistive switching component.
Claims16
A method for detecting spikes in an input signal comprising:
- applying an output from at least one sensor to a resistive switching component, wherein a voltage of the output varies depending on the input signal and wherein the resistive switching component is configured to undergo a volatile resistive state change from an initial resistive state to a further resistive state when a voltage with a magnitude less than or equal to a threshold value is applied across the resistive switching component, and the volatile resistive state change is such that the resistive switching component spontaneously relaxes from the further resistive state towards or beyond the initial resistive state after the magnitude of the voltage subsequently falls,
- said applying the output from the at least one sensor results in the resistive switching component undergoing volatile resistive state changes;
- sampling a further signal that is dependent on a resistance of the resistive switching component;
- and
- identifying, using the sampled further signal, a sequence of volatile resistive state changes corresponding to spikes in the input signal.
2 more elements
A system for detecting spikes in an input signal, comprising:
- a resistive switching component configured to undergo a volatile resistive state change from an initial resistive state to a further resistive state when a voltage with a magnitude less than or equal to a threshold value is applied across the resistive switching component, and the volatile resistive state change is such that the resistive switching component spontaneously relaxes from the further resistive state towards or beyond the initial resistive state after the magnitude of the voltage subsequently falls, wherein the system is configured to apply, across the resistive switching component, a voltage such that the resistive switching component undergoes volatile resistive state changes when the voltage is applied wherein the voltage varies depending on the input signal;
- and
- a processing unit configured to sample a further signal that is dependent on a resistance of the resistive switching component and identify, using the sampled further signal, a sequence of volatile resistive state changes corresponding to spikes in the input signal.
Dependencies are inferred from the claim text.