US 11,770,146 B2 · Apparatus and method for removing high-frequency radio frequency interference

Abstract

An apparatus and method for removing high-frequency radio frequency interference are disclosed. The apparatus includes a filtering unit for filtering an original electroencephalogram signal to obtain an intermediate electroencephalogram signal; a high-frequency signal extraction unit for filtering the intermediate electroencephalogram signal to extract a high-frequency signal from the intermediate electroencephalogram signal; a marking unit for comparing the amplitude of the high-frequency signal with a comparison threshold value, and performing classification marking on the intermediate electroencephalogram signal according to a comparison result; a collection unit for sampling the intermediate electroencephalogram signal that has been performed with the classification marking to obtain a desired electroencephalogram signal and inputting the desired electroencephalogram signal into a processor; and the processor for setting the comparison threshold value and controlling the collection unit to perform sampling.

Claims11

Dependent claims

A method for removing high-frequency radio frequency interference, comprising:

acquiring an electroencephalogram signal;
performing high-pass filtering on the electroencephalogram signal to obtain an intermediate signal;
obtaining a time-domain feature of the intermediate signal within a first preset duration, and calculating a detection threshold value according to the time-domain feature;
obtaining a sub-intermediate signal within a second preset duration, and determining a signal type of the sub-intermediate signal according to the detection threshold value, wherein the signal type is determined among different signal types reflecting at least three different degrees of interference on the electroencephalogram signal;
and
performing, according to the determined signal type, corresponding processing on the electroencephalogram signal corresponding to the sub-intermediate signal.

3 more elements

An apparatus for removing high-frequency radio frequency interference, comprising:

a collection circuit that collects an electroencephalogram signal;
and
a processor configured to:
perform high-pass filtering on the electroencephalogram signal to obtain an intermediate signal;
obtain a time-domain feature of the intermediate signal within a first preset duration, and calculate a detection threshold value according to the time-domain feature;
obtain a sub-intermediate signal within a second preset duration, and determine a signal type of the sub-intermediate signal according to the detection threshold value, wherein the signal type is determined among different signal types reflecting at least three different degrees of interference on the electroencephalogram signal;
and
perform, according to the determined signal type, corresponding processing on the electroencephalogram signal corresponding to the sub-intermediate signal.

5 more elements

Dependencies are inferred from the claim text.

Apparatus and method for removing high-frequency radio frequency interference

Life of this patent

Apparatus and method for removing high-frequency radio frequency interference

Life of this patent

Abstract

Claims11