ATE432039T1 - Multi-bit-adc mit sigma-delta-modulation - Google Patents

Multi-bit-adc mit sigma-delta-modulation

Info

Publication number
ATE432039T1
ATE432039T1 AT05723680T AT05723680T ATE432039T1 AT E432039 T1 ATE432039 T1 AT E432039T1 AT 05723680 T AT05723680 T AT 05723680T AT 05723680 T AT05723680 T AT 05723680T AT E432039 T1 ATE432039 T1 AT E432039T1
Authority
AT
Austria
Prior art keywords
signal
delta modulator
switching circuit
bit sigma
sigma delta
Prior art date
Application number
AT05723680T
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 ATE432039T1 publication Critical patent/ATE432039T1/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
    • 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
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7228—Signal modulation applied to the input signal sent to patient or subject; Demodulation to recover the physiological signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/464—Details of the digital/analogue conversion in the feedback path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/424—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/456—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a first order loop filter in the feedforward path

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physiology (AREA)
  • Psychiatry (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
AT05723680T 2004-02-25 2005-02-24 Multi-bit-adc mit sigma-delta-modulation ATE432039T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/787,542 US7142142B2 (en) 2004-02-25 2004-02-25 Multi-bit ADC with sigma-delta modulation
PCT/US2005/005913 WO2005082236A2 (en) 2004-02-25 2005-02-24 Multi-bit adc with sigma-delta modulation

Publications (1)

Publication Number Publication Date
ATE432039T1 true ATE432039T1 (de) 2009-06-15

Family

ID=34861916

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05723680T ATE432039T1 (de) 2004-02-25 2005-02-24 Multi-bit-adc mit sigma-delta-modulation

Country Status (12)

Country Link
US (2) US7142142B2 (de)
EP (1) EP1722671B1 (de)
JP (1) JP4717059B2 (de)
KR (1) KR20070024491A (de)
CN (1) CN1929778A (de)
AT (1) ATE432039T1 (de)
AU (1) AU2005216956A1 (de)
CA (1) CA2556754C (de)
DE (1) DE602005014618D1 (de)
ES (1) ES2327759T3 (de)
MX (1) MXPA06009748A (de)
WO (1) WO2005082236A2 (de)

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Also Published As

Publication number Publication date
KR20070024491A (ko) 2007-03-02
US7355539B2 (en) 2008-04-08
JP2007523727A (ja) 2007-08-23
US20070132618A1 (en) 2007-06-14
CA2556754C (en) 2013-06-11
EP1722671A2 (de) 2006-11-22
CN1929778A (zh) 2007-03-14
AU2005216956A1 (en) 2005-09-09
MXPA06009748A (es) 2007-03-15
CA2556754A1 (en) 2005-09-09
US20050184895A1 (en) 2005-08-25
JP4717059B2 (ja) 2011-07-06
WO2005082236A2 (en) 2005-09-09
EP1722671B1 (de) 2009-05-27
US7142142B2 (en) 2006-11-28
ES2327759T3 (es) 2009-11-03
DE602005014618D1 (de) 2009-07-09
WO2005082236A3 (en) 2005-12-01

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