Patent · US Active

Asymmetric EEG-based coding and decoding method for brain-computer interfaces

US11221672B2 · kind B2 · utility

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2References
8Claims
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Key dates

Filing dateDec 30, 2018
Grant dateJan 11, 2022
Priority date—
Expiry dateDec 30, 2038

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B5/369
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

The present invention provides an asymmetric EEG-based coding and decoding methods for BCIs, the BCI system includes an evoked stimulus module, an acquisition module and an EEG signal data set including a training set Xk and a testing sample Y, and an EEG signal decoding module; the evoked stimulus module sends a hybrid coding visual stimulus to subjects to evoke a specific EEG signal as required; the acquisition module obtains data information by amplifying and filtering the EEG signal so as to constitute EEG signal module; the decoding module coverts the data information into an instruction set for outputting the coding method of the present invention uses asymmetric characteristics of brain electrophysiological activity response to stimulus, combines with coding strategies such as SDMA, CDMA, FDMA and phase division multiple access coding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.