Monitoring and representing complex signals
AssigneeThe Salk Institute for Biological Studies
InventorsScott Makeig, Jörn Anemüller
Life of this patent
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Abstract
A method of displaying signals containing a spatial and a temporal aspect, where multiple signals are received by multiple sensors. The received signals are decomposed into separate signal components within one or more distinct frequency bands. Signal components are isolated within each frequency band based on differences between the signal components within the same frequency band, and the signal components are displayed. The signal components may be analyzed to determine a time course of activity and a location of the associated source. Representations of the source may also be generated and displayed to aid in monitoring the signals.
Claims32
A method of monitoring signals, comprising:
- receiving signals from a plurality of sensors over a period of time;
- decomposing the signals into separate signal components within one or more frequency bands;
- selecting a frequency band within the one or more frequency bands;
- determining spatial and temporal characteristics of the signal components within the selected frequency band;
- isolating a subset of the signal components within the selected frequency band, based on the spatial and temporal characteristics of the signal components, to determine isolated signal components;
- and
- determining a location of a signal source corresponding to the isolated signal components.
A system for monitoring biological signals, comprising:
- a plurality of sensors for receiving biological signals;
- a first memory configured to decompose the received plurality of signals into separate signal components within one or more frequency bands and select a first frequency band;
- a second memory configured to determine spatial and temporal characteristics of the biological signal components in the first frequency band;
- a third memory configured to isolate a subset of the biological signal components within the first frequency band, based on the spatial and temporal characteristics of the biological signal components, to obtain isolated biological signal components;
- and
- a fourth memory configured to determine a location of a signal source corresponding to the isolated biological signal components.
A computer-readable medium that stores a computer program for monitoring signals, wherein the computer program includes instructions for:
- receiving signals from a plurality of sensors over a period of time;
- decomposing the signals into separate signal components within one or more frequency bands;
- selecting a frequency band within the one or more frequency bands;
- determining spatial and temporal characteristics of the signal components within the selected frequency band;
- and
- isolating a subset of the signal components within the selected frequency band, based on the spatial and temporal characteristics of the signal components, to determine isolated signal components;
- and
- determining a location of a signal source corresponding to the isolated signal components.
A method of monitoring signals, comprising:
- receiving signals from a plurality of sensors over a period of time;
- decomposing the signals into separate signal components within one or more frequency bands;
- selecting a first frequency band within the one or more frequency bands;
- determining spatial and temporal characteristics of the signal components within the first frequency band;
- isolating a subset of the signal components within the first frequency band, based on the spatial and temporal characteristics of the signal components, to determine isolated signal components;
- selecting a second frequency band within the one or more frequency bands;
- determining spatial and temporal characteristics of the signal components within the second frequency band;
- isolating a subset of the signal components within the second frequency band, based on the spatial and temporal characteristics of the signal components, to determine isolated signal components;
- and
- matching at least some of the isolated signal components in the first frequency band with at least some of the isolated signal components in the second frequency band.
A system for monitoring signals, comprising:
- a plurality of sensors for receiving signals;
- a first memory configured to decompose the received plurality of signal into separate signal components within one or more frequency bands, select a first frequency band, and select a second frequency band;
- a second memory configured to determine spatial and temporal characteristics of the signal components in the first frequency band and the second frequency band;
- and
- a third memory configured;
- to isolate a subset of the signal components within the first frequency band, based on the spatial and temporal characteristics of the biological signal components, to obtain isolated signal components,
- to isolate a subset of the signal components within the second frequency band, based on the spatial and temporal characteristics of the biological signal components, to obtain isolated signal components, and
- to match at least some of the isolated signal components in the first frequency band with at least some of the isolated signal components in second frequency band.
Dependencies are inferred from the claim text.