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1. WO2007149553 - ALERTNESS/DROWSINESS AND COGNITIVE CAPACITY INDEX

Publication Number WO/2007/149553
Publication Date 27.12.2007
International Application No. PCT/US2007/014541
International Filing Date 22.06.2007
IPC
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
A61B 5/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
CPC
A61B 5/04017
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
04012Analysis of electro-cardiograms, electro-encephalograms, electro-myograms
04017by using digital filtering
A61B 5/048
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0476Electroencephalography
048Detecting the frequency distribution of signals
A61B 5/165
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
16Devices for psychotechnics
165Evaluating the state of mind, e.g. depression, anxiety
A61B 5/18
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
16Devices for psychotechnics
18for vehicle drivers ; or machine operators
A61B 5/7257
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7235Details of waveform analysis
7253characterised by using transforms
7257using Fourier transforms
Applicants
  • US GOVERNMENT as represented by THE SECRETARY OF THE ARMY [US]/[US] (AllExceptUS)
  • SING, Helen, C. [US]/[US] (UsOnly)
Inventors
  • SING, Helen, C.
Agents
  • ARWINE, Elizabeth
Priority Data
60/815,56522.06.2006US
60/823,17222.08.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ALERTNESS/DROWSINESS AND COGNITIVE CAPACITY INDEX
(FR) indice de vigilance/endormissement et de capacité cognitive
Abstract
(EN)
The invention includes a method and system for providing an Index representing the alertness state of an individual based at least in part on EEG signals obtained from the individual. In at least one exemplary embodiment, the EEG signals are divided into frequency bands and a total amplitude of the power is determined. Based on the proportion of the high frequency band compared to the proportion of the low frequency band, an Index is determined that is indicative of an individual's ability to perform a cognitive task.
(FR)
La présente invention concerne un procédé et un système destinés à fournir un indice représentant l'état de vigilance d'un individu basé au moins en partie sur des signaux d'EEG obtenus à partir d'un individu. Dans au moins un exemple de mode réalisation, lesdits signaux sont divisés en bandes de fréquence et une amplitude totale de la puissance est déterminée. Sur la base de la proportion de la bande haute fréquence par rapport à la proportion de la bande basse fréquence, un indice est déterminé indiquant l'aptitude d'un individu à effectuer une tâche cognitive.
Also published as
US12339864
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