WO2007021645A3 - Method and system for limiting interference in electroencephalographic signals - Google Patents

Method and system for limiting interference in electroencephalographic signals Download PDF

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Publication number
WO2007021645A3
WO2007021645A3 PCT/US2006/030734 US2006030734W WO2007021645A3 WO 2007021645 A3 WO2007021645 A3 WO 2007021645A3 US 2006030734 W US2006030734 W US 2006030734W WO 2007021645 A3 WO2007021645 A3 WO 2007021645A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
interference
limiting interference
artifacts
electroencephalographic signals
Prior art date
Application number
PCT/US2006/030734
Other languages
French (fr)
Other versions
WO2007021645A2 (en
Inventor
Barry Keenan
Original Assignee
Vivometrics Inc
Barry Keenan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivometrics Inc, Barry Keenan filed Critical Vivometrics Inc
Publication of WO2007021645A2 publication Critical patent/WO2007021645A2/en
Publication of WO2007021645A3 publication Critical patent/WO2007021645A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/726—Details of waveform analysis characterised by using transforms using Wavelet transforms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
    • G06F2218/02—Preprocessing
    • G06F2218/04—Denoising

Abstract

This invention provides methods and systems for removing or limiting interference and artifacts often found in EEG signals and/or EOG signals and/or other physiological signals, and produces output signals that can be of greater use for analytic or diagnostic purposes, such as sleep studies. Interference and artifacts are removed by applying a plurality of filtering methods targeted to the particular time-frequency characteristics of the anticipated interference.
PCT/US2006/030734 2005-08-09 2006-08-07 Method and system for limiting interference in electroencephalographic signals WO2007021645A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/200,674 US7809433B2 (en) 2005-08-09 2005-08-09 Method and system for limiting interference in electroencephalographic signals
US11/200,674 2005-08-09

Publications (2)

Publication Number Publication Date
WO2007021645A2 WO2007021645A2 (en) 2007-02-22
WO2007021645A3 true WO2007021645A3 (en) 2007-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/030734 WO2007021645A2 (en) 2005-08-09 2006-08-07 Method and system for limiting interference in electroencephalographic signals

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US (1) US7809433B2 (en)
WO (1) WO2007021645A2 (en)

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US9504410B2 (en) 2005-09-21 2016-11-29 Adidas Ag Band-like garment for physiological monitoring

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US20070038382A1 (en) 2007-02-15
US7809433B2 (en) 2010-10-05

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