Patent ID: 11903718
Assignee: IMEDISYNC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. An automatic noise signal interval detection device comprising:
a data converter configured to receive input electroencephalogram (EEG) data and to generate initial data in a time-frequency domain;
a data processor configured to calculate power for each epoch for each channel of the initial data;
a data analyzer configured to generate a power graph for a specific frequency region of each channel over time using the power for each epoch, wherein the generating of the power graph comprises (i) determining a delta or theta region with respect to brainwave signals as the specific frequency region and (ii) generating a graph of a frequency power over time as the power graph;
a baseline generator configured to generate a baseline by calculating an average of each channel value on the power graph;
a noise signal detector configured to determine, as a noise signal interval, an interval exceeding a predetermined threshold based on the baseline on the power graph,
wherein the noise signal detector individually sets at least one threshold for each noise signal if there is at least one noise signal and determines the noise signal interval based on the number of channels exceeding the at least one threshold according to the noise signal, and
wherein the at least one threshold for each noise signal individually set by the noise signal detector comprises at least a first threshold for a drowsiness interval noise and a second threshold for a specific motion interval noise; and

a noise signal rejecter configured to generate a post-processed signal, wherein generating the post-processed signal comprises rejecting the at least one noise signal within the determined noise signal interval.