ATE468807T1 - Delta-sigma-modulator zur ausgabe einer analog- darstellung eines physiologischen signals - Google Patents

Delta-sigma-modulator zur ausgabe einer analog- darstellung eines physiologischen signals

Info

Publication number
ATE468807T1
ATE468807T1 AT05714036T AT05714036T ATE468807T1 AT E468807 T1 ATE468807 T1 AT E468807T1 AT 05714036 T AT05714036 T AT 05714036T AT 05714036 T AT05714036 T AT 05714036T AT E468807 T1 ATE468807 T1 AT E468807T1
Authority
AT
Austria
Prior art keywords
delta
sigma modulator
physiological signal
outputing
analog representation
Prior art date
Application number
AT05714036T
Other languages
English (en)
Inventor
Ethan Petersen
William Shea
Bradford Chew
Original Assignee
Nellcor Puritan Bennett Llc
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 Nellcor Puritan Bennett Llc filed Critical Nellcor Puritan Bennett Llc
Application granted granted Critical
Publication of ATE468807T1 publication Critical patent/ATE468807T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3042—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator being of the error feedback type, i.e. having loop filter stages in the feedback path only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
AT05714036T 2004-02-25 2005-02-24 Delta-sigma-modulator zur ausgabe einer analog- darstellung eines physiologischen signals ATE468807T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/787,853 US7212847B2 (en) 2004-02-25 2004-02-25 Delta-sigma modulator for outputting analog representation of physiological signal
PCT/US2005/005934 WO2005082237A1 (en) 2004-02-25 2005-02-24 Delta-sigma modulator for outputting analog representation of physiological signal

Publications (1)

Publication Number Publication Date
ATE468807T1 true ATE468807T1 (de) 2010-06-15

Family

ID=34861936

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05714036T ATE468807T1 (de) 2004-02-25 2005-02-24 Delta-sigma-modulator zur ausgabe einer analog- darstellung eines physiologischen signals

Country Status (12)

Country Link
US (1) US7212847B2 (de)
EP (1) EP1729630B1 (de)
JP (1) JP4705626B2 (de)
KR (1) KR20070029676A (de)
CN (1) CN1933770A (de)
AT (1) ATE468807T1 (de)
AU (1) AU2005216959A1 (de)
CA (1) CA2556755C (de)
DE (1) DE602005021470D1 (de)
ES (1) ES2344112T3 (de)
MX (1) MXPA06009749A (de)
WO (1) WO2005082237A1 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7761127B2 (en) 2005-03-01 2010-07-20 Masimo Laboratories, Inc. Multiple wavelength sensor substrate
KR100791634B1 (ko) 2006-09-29 2008-01-04 고려대학교 산학협력단 낮은 전력소모를 갖는 델타 시그마 모듈레이터 및 이를포함하는 심박 조율 장치
US8265723B1 (en) 2006-10-12 2012-09-11 Cercacor Laboratories, Inc. Oximeter probe off indicator defining probe off space
US8652040B2 (en) 2006-12-19 2014-02-18 Valencell, Inc. Telemetric apparatus for health and environmental monitoring
US8157730B2 (en) 2006-12-19 2012-04-17 Valencell, Inc. Physiological and environmental monitoring systems and methods
US20080221418A1 (en) * 2007-03-09 2008-09-11 Masimo Corporation Noninvasive multi-parameter patient monitor
WO2008118993A1 (en) 2007-03-27 2008-10-02 Masimo Laboratories, Inc. Multiple wavelength optical sensor
US8374665B2 (en) 2007-04-21 2013-02-12 Cercacor Laboratories, Inc. Tissue profile wellness monitor
US7818638B2 (en) * 2007-06-15 2010-10-19 Micron Technology, Inc. Systems and devices including memory with built-in self test and methods of making and using the same
US8251903B2 (en) 2007-10-25 2012-08-28 Valencell, Inc. Noninvasive physiological analysis using excitation-sensor modules and related devices and methods
US7782237B2 (en) * 2008-06-13 2010-08-24 The Board Of Trustees Of The Leland Stanford Junior University Semiconductor sensor circuit arrangement
US20100030040A1 (en) 2008-08-04 2010-02-04 Masimo Laboratories, Inc. Multi-stream data collection system for noninvasive measurement of blood constituents
EP2326239B1 (de) 2008-07-03 2017-06-21 Masimo Laboratories, Inc. Vorsprung zur verbesserung der spektroskopischen messung von blutbestandteilen
US8788002B2 (en) 2009-02-25 2014-07-22 Valencell, Inc. Light-guiding devices and monitoring devices incorporating same
US9750462B2 (en) * 2009-02-25 2017-09-05 Valencell, Inc. Monitoring apparatus and methods for measuring physiological and/or environmental conditions
JP5789199B2 (ja) 2009-02-25 2015-10-07 ヴァレンセル，インコーポレイテッド ヘッドセット及びイアバッド
US8571621B2 (en) * 2009-09-24 2013-10-29 Covidien Lp Minimax filtering for pulse oximetry
US8840562B2 (en) * 2009-09-24 2014-09-23 Covidien Lp Signal processing warping technique
US9839381B1 (en) 2009-11-24 2017-12-12 Cercacor Laboratories, Inc. Physiological measurement system with automatic wavelength adjustment
WO2011069122A1 (en) 2009-12-04 2011-06-09 Masimo Corporation Calibration for multi-stage physiological monitors
US8888701B2 (en) 2011-01-27 2014-11-18 Valencell, Inc. Apparatus and methods for monitoring physiological data during environmental interference
US9427191B2 (en) 2011-07-25 2016-08-30 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
WO2014116924A1 (en) 2013-01-28 2014-07-31 Valencell, Inc. Physiological monitoring devices having sensing elements decoupled from body motion
JP5830120B2 (ja) * 2014-03-20 2015-12-09 日本光電工業株式会社 生体情報モニタのアップグレード方法及びアップグレード装置
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
US10536768B2 (en) 2014-08-06 2020-01-14 Valencell, Inc. Optical physiological sensor modules with reduced signal noise
US9794653B2 (en) 2014-09-27 2017-10-17 Valencell, Inc. Methods and apparatus for improving signal quality in wearable biometric monitoring devices
US9743868B2 (en) 2014-11-20 2017-08-29 Qualcomm Incorporated Circuitry to allow low current operation of a device capable of determining a blood property
HK1249839A1 (zh) 2015-10-23 2018-11-16 Valencell, Inc. 辨认研究对象活动类型的生理监测装置和方法
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
US10966662B2 (en) 2016-07-08 2021-04-06 Valencell, Inc. Motion-dependent averaging for physiological metric estimating systems and methods
KR101933009B1 (ko) * 2017-01-03 2019-03-15 아주대학교산학협력단 광-디지털 변환기

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US803910A (en) * 1904-07-20 1905-11-07 Leo Ledermann Floating device.
US4802486A (en) * 1985-04-01 1989-02-07 Nellcor Incorporated Method and apparatus for detecting optical pulses
US4928692A (en) * 1985-04-01 1990-05-29 Goodman David E Method and apparatus for detecting optical pulses
US4934372A (en) * 1985-04-01 1990-06-19 Nellcor Incorporated Method and apparatus for detecting optical pulses
US4911167A (en) * 1985-06-07 1990-03-27 Nellcor Incorporated Method and apparatus for detecting optical pulses
US4873987A (en) * 1988-06-30 1989-10-17 Ljubomir Djordjevich Noninvasive continuous monitor of arterial blood pressure waveform
US5061925A (en) * 1990-08-22 1991-10-29 Crystal Semiconductor Corporation Phase equalization system for a digital-to-analog converter utilizing separate digital and analog sections
US5632272A (en) * 1991-03-07 1997-05-27 Masimo Corporation Signal processing apparatus
MX9702434A (es) * 1991-03-07 1998-05-31 Masimo Corp Aparato de procesamiento de señales.
US5351685A (en) 1991-08-05 1994-10-04 Nellcor Incorporated Condensed oximeter system with noise reduction software
US5934277A (en) 1991-09-03 1999-08-10 Datex-Ohmeda, Inc. System for pulse oximetry SpO2 determination
AU648925B2 (en) * 1991-10-21 1994-05-05 Matsushita Electric Industrial Co., Ltd. Electrolytic capacitor and method for producing the same
US5368224A (en) * 1992-10-23 1994-11-29 Nellcor Incorporated Method for reducing ambient noise effects in electronic monitoring instruments
DE69312425T2 (de) * 1992-11-09 1998-02-12 Philips Electronics Nv Digital-/Analogwandler
US5368026A (en) 1993-03-26 1994-11-29 Nellcor Incorporated Oximeter with motion detection for alarm modification
US5424655A (en) * 1994-05-20 1995-06-13 Quicklogic Corporation Programmable application specific integrated circuit employing antifuses and methods therefor
US5638816A (en) * 1995-06-07 1997-06-17 Masimo Corporation Active pulse blood constituent monitoring
AUPN740796A0 (en) 1996-01-04 1996-01-25 Circuitry Systems Limited Biomedical data collection apparatus
US5746697A (en) * 1996-02-09 1998-05-05 Nellcor Puritan Bennett Incorporated Medical diagnostic apparatus with sleep mode
US5921921A (en) * 1996-12-18 1999-07-13 Nellcor Puritan-Bennett Pulse oximeter with sigma-delta converter
US5995858A (en) * 1997-11-07 1999-11-30 Datascope Investment Corp. Pulse oximeter
US6226539B1 (en) * 1999-05-26 2001-05-01 Mallinckrodt, Inc. Pulse oximeter having a low power led drive
US6707407B2 (en) * 2001-06-11 2004-03-16 Analog Devices, Inc. Method for converting a video signal from one of an analogue and digital form to the other of the analogue and digital form with enhanced signal to noise ratio
US6850788B2 (en) * 2002-03-25 2005-02-01 Masimo Corporation Physiological measurement communications adapter
US6924756B2 (en) * 2003-05-28 2005-08-02 Texas Instruments Incorporated Method and system for processing a digital signal

Also Published As

Publication number Publication date
CA2556755A1 (en) 2005-09-09
MXPA06009749A (es) 2007-03-15
EP1729630B1 (de) 2010-05-26
JP4705626B2 (ja) 2011-06-22
CA2556755C (en) 2013-06-11
CN1933770A (zh) 2007-03-21
US20050187453A1 (en) 2005-08-25
WO2005082237A1 (en) 2005-09-09
US7212847B2 (en) 2007-05-01
ES2344112T3 (es) 2010-08-18
EP1729630A1 (de) 2006-12-13
JP2007523728A (ja) 2007-08-23
KR20070029676A (ko) 2007-03-14
DE602005021470D1 (de) 2010-07-08
AU2005216959A1 (en) 2005-09-09

Similar Documents

Publication Publication Date Title
ATE468807T1 (de) Delta-sigma-modulator zur ausgabe einer analog- darstellung eines physiologischen signals
EP1970901A3 (de) Signalverarbeitungsvorrichtung und Signalverarbeitungsverfahren
WO2008008949A3 (en) Signal integrity measurement systems and methods using a predominantly digital time-base generator
DE60334479D1 (de) Echtzeitoszilloskop mit hoher bandbreite
TW200746649A (en) A/D converter and A/D converting method
WO2006028552A3 (en) Stringed instrument with embedded dsp modeling for modeling acoustic stringed instruments
WO2005125017A3 (en) Systems and methods for analog to digital conversion
WO2004046877A3 (en) Diagnostic signal processing method and system
ATE457550T1 (de) Architektur zur kombination eines zeitkontinuierlichen status mit einem schaltkondensatorstatus für digital-analog- wandler und tiefpassfilter
MX2009007325A (es) Metodos y aparatos para produccion de forma de onda triangular con bajo contenido de ruido en banda de audio.
ATE371988T1 (de) Verfahren und vorrichtung zur analog-/digital- umsetzung
CA2547050A1 (en) Low power sigma delta modulator
WO2007088499A3 (en) Method of instantaneously determining or estimating the frequency or amplitude of an input signal
TW200513042A (en) Apparatus for sampling a plurality of analog signals
DE60307429D1 (de) Verfahren und Einrichtung zur Digital-Analog/Analog-Digital Wandlung mit reduziertem Energieverbrauch
AU2001274728A1 (en) Full scale calibration of analog-to-digital conversion
ATE419677T1 (de) Verfahren zum erzeugen eines digitalsignals, das anpassungsfehler in einem analog/digital- umsetzungssystem mit zeitverschachtelung repräsentiert und analog/digital-umsetzer mit zeitverschachtelung damit
TW200601708A (en) Analog/digital transformation method and analog/digital transformation device
DE602006019295D1 (en) Delta-sigma-modulator
DE50304973D1 (de) Anordnung zur digital-analog-wandlung eines hochfrequenten digitalen eingangssignals in ein trägerfrequentes analoges ausgangssignal
ATE535998T1 (de) Bereichskomprimierung beim überabtasten von analog-digital-wandlern mittels unterschiedlicher eingangssignale
WO2006076693A8 (en) Method and apparatus for a transmission signal up-converting filter
DE60028182D1 (de) System zur quantisierung eines analogen signals mit einer brücke von dioden mit resonantem tunneleffekt
ATE449463T1 (de) Elektronische schaltung zur analog/digital- umsetzung eines analogen einlasssignals
TW200636271A (en) High-speed DAC linearity measurement

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties