Patent ID: 6339721
Filing Date: 2002-01-15
Classification: A61B

Abstract:
A brain wave data processing device detecting distinguishing patterns from individual brain wave data obtained in a single trial, said brain wave data processing device comprising:a brain wave data storage means for storing digital brain wave data; a wavelet conversion means for subjecting said digital brain wave data read out from said brain wave data storage means to wavelet conversion to determine a wavelet coefficient; a wavelet coefficient surface output means for outputting said wavelet coefficient as function values of a scale parameter and a shift parameter in said wavelet conversion; a wavelet coefficient window parameter setting means for setting a wavelet coefficient window; a wavelet coefficient window means for extracting a predetermined area based on said wavelet coefficient window from a wavelet coefficient surface defined by said scale parameter, said shift parameter, and said wavelet coefficient; and a brain wave data discriminating means for discriminating whether or not said predetermined area has been extracted from said wavelet coefficient surface by said wavelet coefficient window means for individual digital brain wave data.