A method and apparatus for determining sleep states

Abeyratne, Udantha R. and Swarnkar, Vinayak (2010). A method and apparatus for determining sleep states. WO 2010060153.


Creator Abeyratne, Udantha R.
Swarnkar, Vinayak
Patent title A method and apparatus for determining sleep states
Date of issue 2010-06-03
Collection year 2010
Patent owner The University of Queensand
Patent number WO 2010060153
Country of origin Australia
Language eng
Subjects 0903 Biomedical Engineering
Abstract/Summary An apparatus is provided for detecting Macro Sleep Architecture states of a subject such as WAKE, NREM and REM sleep from a subject's EEG. The apparatus includes an EEG digital signal assembly of modules arranged to convert analogue EEG signals into digital EEG signals. A bispectrum assembly is responsive to the EEG digital signal assembly and converts the digital EEG signals into signals representing corresponding bispectrum values. A bispectrum time series assembly, in electrical communication with an output side of the bispectrum assembly, generates at least one bispectrum time series for a predetermined frequency. A macro-sleep architecture (MSA) assembly is responsive to the bispectrum time series assembly and is arranged to produce classification signals indicating classification of segments of the EEG signals into macro-sleep states of the subject.

 
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Created: Thu, 03 Mar 2011, 16:27:00 EST by Ms Kimberley Nunes on behalf of Centre for Medical Diagnostic Technologies in Qld