WO2002017782A3 - Verfahren und vorrichtung zum adaptiven reduzieren des rauschens in einem signal, insbesondere in einem elektro- oder magnetokardiographischen signal - Google Patents

Verfahren und vorrichtung zum adaptiven reduzieren des rauschens in einem signal, insbesondere in einem elektro- oder magnetokardiographischen signal Download PDF

Info

Publication number
WO2002017782A3
WO2002017782A3 PCT/DE2001/003195 DE0103195W WO0217782A3 WO 2002017782 A3 WO2002017782 A3 WO 2002017782A3 DE 0103195 W DE0103195 W DE 0103195W WO 0217782 A3 WO0217782 A3 WO 0217782A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
value
reestimated
input
discrete
Prior art date
Application number
PCT/DE2001/003195
Other languages
English (en)
French (fr)
Other versions
WO2002017782A2 (de
Inventor
Fritz Steinberg
Leonid Fainzelberg
Original Assignee
Squid Ag
Fritz Steinberg
Leonid Fainzelberg
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 Squid Ag, Fritz Steinberg, Leonid Fainzelberg filed Critical Squid Ag
Priority to AU2001289569A priority Critical patent/AU2001289569A1/en
Priority to DE10193581T priority patent/DE10193581D2/de
Publication of WO2002017782A2 publication Critical patent/WO2002017782A2/de
Publication of WO2002017782A3 publication Critical patent/WO2002017782A3/de

Links

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
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Signal Processing (AREA)
  • Cardiology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physiology (AREA)
  • Psychiatry (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

Ein Signal, das neben den eigentlich interessierenden Signalkompenenten auch ungewünschte Rauschkomponenten enthält, wird, sofern es nicht bereits in digitaler Form gemessen wurde, zunächst an den Eingang eines analog-digital-Wandlers gelegt, der einen Satz diskreter Daten erzeugt. Die diskreten Daten werden gespeichert, und Sätze der gespeicherten Daten werden sequentiell von einem adaptiven sogenannten 'Gleitender-Durchschnitt-Glättungs-Filter' verarbeitet, der für jeden diskreten Eingangswert einen rückabgeschätzten Wert erzeugt. Der erhaltene rückabgeschätzte Wert wird mit dem entsprechenden diskreten Eingangswert verglichen und als Resultat des Vergleichs wird der genannte Filter iterative abgeglichen, so daß die Differenz zwischen den Eingangswerten und den rückabgeschätzten Werten einen vorgegebenen Grenzwert nicht überschreitet.
PCT/DE2001/003195 2000-08-26 2001-08-27 Verfahren und vorrichtung zum adaptiven reduzieren des rauschens in einem signal, insbesondere in einem elektro- oder magnetokardiographischen signal WO2002017782A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001289569A AU2001289569A1 (en) 2000-08-26 2001-08-27 Method and device for adaptively reducing signal noise, especially in an electrocardiographic or magnetocardiographic signal
DE10193581T DE10193581D2 (de) 2000-08-26 2001-08-27 Verfahren und Vorrichtung zum Adaptiven Reduzieren des Rauschens in einem Signal, insbesondere in einem Elektro- oder Magnetokardiographischen Signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10041929.1 2000-08-26
DE10041929 2000-08-26

Publications (2)

Publication Number Publication Date
WO2002017782A2 WO2002017782A2 (de) 2002-03-07
WO2002017782A3 true WO2002017782A3 (de) 2002-10-24

Family

ID=7653850

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003195 WO2002017782A2 (de) 2000-08-26 2001-08-27 Verfahren und vorrichtung zum adaptiven reduzieren des rauschens in einem signal, insbesondere in einem elektro- oder magnetokardiographischen signal

Country Status (3)

Country Link
AU (1) AU2001289569A1 (de)
DE (1) DE10193581D2 (de)
WO (1) WO2002017782A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101843482B (zh) * 2009-01-28 2013-11-06 西门子公司 确定心电图信号中r形脉冲的方法、测量装置和磁共振仪

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6892093B2 (en) * 2002-08-01 2005-05-10 Ge Medical Systems Information Technologies Inc. Method and apparatus for real time display of filtered electrocardiogram data
US8157730B2 (en) 2006-12-19 2012-04-17 Valencell, Inc. Physiological and environmental monitoring systems and methods
US8652040B2 (en) 2006-12-19 2014-02-18 Valencell, Inc. Telemetric apparatus for health and environmental monitoring
US8251903B2 (en) 2007-10-25 2012-08-28 Valencell, Inc. Noninvasive physiological analysis using excitation-sensor modules and related devices and methods
US9750462B2 (en) 2009-02-25 2017-09-05 Valencell, Inc. Monitoring apparatus and methods for measuring physiological and/or environmental conditions
US8788002B2 (en) 2009-02-25 2014-07-22 Valencell, Inc. Light-guiding devices and monitoring devices incorporating same
EP3357419A1 (de) 2009-02-25 2018-08-08 Valencell, Inc. Lichtgeleitete vorrichtungen und überwachungsvorrichtungen damit
US8888701B2 (en) 2011-01-27 2014-11-18 Valencell, Inc. Apparatus and methods for monitoring physiological data during environmental interference
WO2013016007A2 (en) 2011-07-25 2013-01-31 Valencell, Inc. Apparatus and methods for estimating time-state physiological parameters
US9801552B2 (en) 2011-08-02 2017-10-31 Valencell, Inc. Systems and methods for variable filter adjustment by heart rate metric feedback
CN110013240A (zh) 2013-01-28 2019-07-16 瓦伦赛尔公司 具有与身体运动脱开的感测元件的生理监测装置
US9538921B2 (en) 2014-07-30 2017-01-10 Valencell, Inc. Physiological monitoring devices with adjustable signal analysis and interrogation power and monitoring methods using same
EP3151737B1 (de) 2014-08-06 2022-08-17 Valencell, Inc. Optische physiologische sensormodule mit reduziertem signalrauschen
US9794653B2 (en) 2014-09-27 2017-10-17 Valencell, Inc. Methods and apparatus for improving signal quality in wearable biometric monitoring devices
US10945618B2 (en) 2015-10-23 2021-03-16 Valencell, Inc. Physiological monitoring devices and methods for noise reduction in physiological signals based on subject activity type
US10610158B2 (en) 2015-10-23 2020-04-07 Valencell, Inc. Physiological monitoring devices and methods that identify subject activity type
JP2019514559A (ja) * 2016-04-25 2019-06-06 クリエイボ・メディカル・テクノロジーズ・リミテッドＣｒｅａｖｏ Ｍｅｄｉｃａｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｉｍｉｔｅｄ 医療用の磁力計におけるノイズの使用
US10966662B2 (en) 2016-07-08 2021-04-06 Valencell, Inc. Motion-dependent averaging for physiological metric estimating systems and methods
CN110623662B (zh) * 2019-08-30 2021-06-01 电子科技大学 一种适用于心电信号检测的自适应阈值迭代算法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634134A1 (de) * 1993-07-16 1995-01-18 Siemens-Elema AB Methode und Vorrichtung zum Erhöhen SNR von EKG-Signalen
WO1998022791A2 (en) * 1996-11-15 1998-05-28 Cardiosol Ltd. Statistical mapping of the physiological state of the heart of a mammal
WO1999036860A1 (de) * 1998-01-16 1999-07-22 Ernst Sanz Erweiterte kardiogoniometrie
WO2000046690A1 (en) * 1999-02-08 2000-08-10 Medtronic Physio-Control Manufacturing Corp. Ecg waveform processing with reduced baseline wander

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634134A1 (de) * 1993-07-16 1995-01-18 Siemens-Elema AB Methode und Vorrichtung zum Erhöhen SNR von EKG-Signalen
WO1998022791A2 (en) * 1996-11-15 1998-05-28 Cardiosol Ltd. Statistical mapping of the physiological state of the heart of a mammal
WO1999036860A1 (de) * 1998-01-16 1999-07-22 Ernst Sanz Erweiterte kardiogoniometrie
WO2000046690A1 (en) * 1999-02-08 2000-08-10 Medtronic Physio-Control Manufacturing Corp. Ecg waveform processing with reduced baseline wander

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101843482B (zh) * 2009-01-28 2013-11-06 西门子公司 确定心电图信号中r形脉冲的方法、测量装置和磁共振仪

Also Published As

Publication number Publication date
WO2002017782A2 (de) 2002-03-07
AU2001289569A1 (en) 2002-03-13
DE10193581D2 (de) 2003-07-17

Similar Documents

Publication Publication Date Title
WO2002017782A3 (de) Verfahren und vorrichtung zum adaptiven reduzieren des rauschens in einem signal, insbesondere in einem elektro- oder magnetokardiographischen signal
CN1741376B (zh) 自动增益控制电路
EP1168824A3 (de) Bildverarbeitungsverfahren zur Reduzierung von Rausch und Blockartefakten in einem digitalen Bild
WO2005109404A3 (en) Noise suppression based upon bark band weiner filtering and modified doblinger noise estimate
EP1065656A3 (de) Verfahren und Vorrichtung zur Verminderung von Rauschen bei Sprachsignalen
AU4399900A (en) System and method for dual microphone signal noise reduction using spectral subtraction
WO2007066273A3 (en) Feedforward sigma-delta ad converter with an optimized built-in filter function
EP2866474A3 (de) Anpassungsverfahren und Hörprothese auf Basis von Verlustdaten des Signal-Rausch-Verhältnisses
WO2003090610A3 (en) Fast estimation of weak bio-signals using novel algorithms for generating multiple additional data frames
MY120810A (en) Signal noise reduction by spectral subtraction using linear convolution and causal filtering
WO2006052395A3 (en) Noise reduction and comfort noise gain control using bark band weiner filter and linear attenuation
EP0751491A3 (de) Verfahren zur Rauschverminderung in einem Sprachsignal
WO2002103580A3 (en) Adaptive mean estimation and normalization of data
WO2000048171A8 (en) Speech enhancement with gain limitations based on speech activity
ATE353466T1 (de) Verstärkungsgesteuerte geräuschunterdrückung
WO2002007363A3 (en) Fast frequency-domain pitch estimation
WO2006020340A3 (en) Method and apparatus for noise reduction
WO2005114838A1 (en) Method and apparatus having a digital pwm signal generator with integral noise shaping
EP1320071A3 (de) Bildverbesserung mit Unterdrückung von Über- und Unterschwingungen
CN102176312B (zh) 一种通过小波陷波来降低突发噪音的系统及方法
JPH06500217A (ja) 静的干渉キヤンセラ
IL139858A (en) Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
US20050117757A1 (en) Sound signal processing device and sound signal processing method
WO2006039649A3 (en) Unified analog input front end apparatus and method
WO2003075457A3 (en) Apparatus and method for reducing peak-to-average signal power ratio

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2001969249

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2001969249

Country of ref document: EP

REF Corresponds to

Ref document number: 10193581

Country of ref document: DE

Date of ref document: 20030717

Kind code of ref document: P

WWE Wipo information: entry into national phase

Ref document number: 10193581

Country of ref document: DE

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP