DE69229994D1 - Gerät und verfahren zur signalverarbeitung - Google Patents

Gerät und verfahren zur signalverarbeitung

Info

Publication number
DE69229994D1
DE69229994D1 DE1992629994 DE69229994A DE69229994D1 DE 69229994 D1 DE69229994 D1 DE 69229994D1 DE 1992629994 DE1992629994 DE 1992629994 DE 69229994 A DE69229994 A DE 69229994A DE 69229994 D1 DE69229994 D1 DE 69229994D1
Authority
DE
Grant status
Grant
Patent type
Prior art keywords
device
method
signal processing
processing
signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE1992629994
Other languages
English (en)
Other versions
DE69229994T2 (de )
Inventor
Mohamed Diab
Esmaiel Kiani-Azarbayjany
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Masimo Corp
Original Assignee
Masimo Corp
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
Grant date
Family has litigation

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00496Recognising patterns in signals and combinations thereof
    • G06K9/00503Preprocessing, e.g. filtering
    • G06K9/0051Denoising
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A61B5/7214Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7228Signal modulation applied to the input signal sent to patient or subject; demodulation to recover the physiological signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference induced by transmission
    • H04B1/12Neutralising, balancing, or compensation arrangements
    • H04B1/123Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
DE1992629994 1991-03-07 1992-03-05 Gerät und verfahren zur signalverarbeitung Expired - Lifetime DE69229994D1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US66606091 true 1991-03-07 1991-03-07
PCT/US1992/001895 WO1992015955A1 (en) 1991-03-07 1992-03-05 Signal processing apparatus and method

Publications (1)

Publication Number Publication Date
DE69229994D1 true DE69229994D1 (de) 1999-10-21

Family

ID=24672658

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1992629994 Expired - Lifetime DE69229994D1 (de) 1991-03-07 1992-03-05 Gerät und verfahren zur signalverarbeitung
DE1992629994 Expired - Lifetime DE69229994T2 (de) 1991-03-07 1992-03-05 Gerät und verfahren zur signalverarbeitung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1992629994 Expired - Lifetime DE69229994T2 (de) 1991-03-07 1992-03-05 Gerät und verfahren zur signalverarbeitung

Country Status (7)

Country Link
US (8) US5482036A (de)
EP (3) EP0930045A3 (de)
JP (1) JP3363150B2 (de)
CA (1) CA2105682C (de)
DE (2) DE69229994D1 (de)
RU (1) RU2144211C1 (de)
WO (1) WO1992015955A1 (de)

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EP1357481A3 (de) 2005-04-27 application
EP0930045A2 (de) 1999-07-21 application
US6826419B2 (en) 2004-11-30 grant
JP3363150B2 (ja) 2003-01-08 grant
US5769785A (en) 1998-06-23 grant
US5482036A (en) 1996-01-09 grant
US20030097049A1 (en) 2003-05-22 application
US20040204638A1 (en) 2004-10-14 application
US6206830B1 (en) 2001-03-27 grant
US6501975B2 (en) 2002-12-31 grant
RU2144211C1 (ru) 2000-01-10 grant
US20010029326A1 (en) 2001-10-11 application
CA2105682A1 (en) 1992-09-08 application
EP0574509A1 (de) 1993-12-22 application
USRE38492E1 (en) 2004-04-06 grant
CA2105682C (en) 2003-09-02 grant
WO1992015955A1 (en) 1992-09-17 application
DE69229994T2 (de) 2000-04-27 grant
EP0574509B1 (de) 1999-09-15 grant
EP0930045A3 (de) 1999-10-27 application
EP0574509A4 (en) 1996-07-31 application
US6036642A (en) 2000-03-14 grant
JPH06507485A (de) 1994-08-25 application
EP1357481A2 (de) 2003-10-29 application

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