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US 8,798,736 B2Granted
EEG control of devices using sensory evoked potentials
AssigneeNeuroSky, Inc.
InventorsTom Sullivan, Arnaud Delorme, An Luo
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Abstract
An EEG control of devices using Sensory Evoked Potentials (SEPs) (e.g., visually-evoked potentials), is disclosed. In some embodiments, a system receives a plurality of EEG signal samples; generates a stimulus locked average signal using the plurality of EEG signal samples; and determines whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus.
Claims16
A system, comprising:
- a processor configured to:
- generate a stimulus-locked average signal of a plurality of EEG signal samples;
- and
- determine whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events, wherein:
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes multiplying the stimulus-locked average by a prototype average that adapts to a user's EEG signals;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes integrating the EEG signal data to generate a result, and comparing the result to a threshold;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events is performed using a time domain classifier;
- and
- a memory coupled to the processor and configured to provide the processor with instructions.
8 more elements
A method, comprising:
- measuring a plurality of EEG signal samples using a bio-signal sensor;
- generating a stimulus-locked average signal using the plurality of EEG signal samples using a processor;
- and
- determining whether the plurality of EEG signal samples are evoked in response to a stimulus using the processor, wherein:
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes multiplying the stimulus-locked average by a prototype average that adapts to a user's EEG signals;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes integrating the EEG signal data to generate a result, and comparing the result to a threshold;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events is performed using a time domain classifier.
6 more elements
A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
- recording a plurality of EEG signal samples;
- generating a stimulus-locked average signal using the plurality of EEG signal samples;
- and
- determining whether the plurality of EEG signal samples are evoked in response to a stimulus, wherein:
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes multiplying the stimulus-locked average by a prototype average that adapts to a user's EEG signals;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events includes integrating the EEG signal data to generate a result, and comparing the result to a threshold;
- or
- the determination of whether the plurality of EEG signal samples are evoked in response to a pattern of stimulus events is performed using a time domain classifier.
6 more elements
Dependencies are inferred from the claim text.