DE602005021470D1 - 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
DE602005021470D1
DE602005021470D1 DE602005021470T DE602005021470T DE602005021470D1 DE 602005021470 D1 DE602005021470 D1 DE 602005021470D1 DE 602005021470 T DE602005021470 T DE 602005021470T DE 602005021470 T DE602005021470 T DE 602005021470T DE 602005021470 D1 DE602005021470 D1 DE 602005021470D1
Authority
DE
Germany
Prior art keywords
output
sigma modulator
physiological signal
delta sigma
analog
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.)
Active
Application number
DE602005021470T
Other languages
English (en)
Inventor
Ethan Petersen
William Shea
Bradford B Chew
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.)
Nellcor Puritan Bennett LLC
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
Publication of DE602005021470D1 publication Critical patent/DE602005021470D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring 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
    • A61B5/14551—Measuring 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
    • 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
DE602005021470T 2004-02-25 2005-02-24 Delta-sigma-modulator zur ausgabe einer analog-darstellung eines physiologischen signals Active DE602005021470D1 (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
DE602005021470D1 true DE602005021470D1 (de) 2010-07-08

Family

ID=34861936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005021470T Active DE602005021470D1 (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)

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US8157730B2 (en) 2006-12-19 2012-04-17 Valencell, Inc. Physiological and environmental monitoring systems and methods
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US20080221418A1 (en) * 2007-03-09 2008-09-11 Masimo Corporation Noninvasive multi-parameter patient monitor
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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
US20100004518A1 (en) 2008-07-03 2010-01-07 Masimo Laboratories, Inc. Heat sink for noninvasive medical sensor
US8630691B2 (en) 2008-08-04 2014-01-14 Cercacor Laboratories, Inc. Multi-stream sensor front ends for noninvasive measurement of blood constituents
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
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US8840562B2 (en) * 2009-09-24 2014-09-23 Covidien Lp Signal processing warping technique
US8571621B2 (en) * 2009-09-24 2013-10-29 Covidien Lp Minimax filtering for pulse oximetry
US9839381B1 (en) 2009-11-24 2017-12-12 Cercacor Laboratories, Inc. Physiological measurement system with automatic wavelength adjustment
DE112010004682T5 (de) 2009-12-04 2013-03-28 Masimo Corporation Kalibrierung für mehrstufige physiologische Monitore
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
WO2013019494A2 (en) 2011-08-02 2013-02-07 Valencell, Inc. Systems and methods for variable filter adjustment by heart rate metric feedback
EP2928364A4 (de) 2013-01-28 2015-11-11 Valencell Inc Vorrichtungen zur überwachung physiologischer funktionen mit von körperbewegungen abgekoppelten sensorelementen
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
EP4098178B1 (de) 2014-08-06 2024-04-10 Yukka Magic LLC 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
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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
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WO2018009736A1 (en) 2016-07-08 2018-01-11 Valencell, Inc. Motion-dependent averaging for physiological metric estimating systems and methods
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Also Published As

Publication number Publication date
JP4705626B2 (ja) 2011-06-22
CA2556755A1 (en) 2005-09-09
ES2344112T3 (es) 2010-08-18
JP2007523728A (ja) 2007-08-23
EP1729630B1 (de) 2010-05-26
KR20070029676A (ko) 2007-03-14
AU2005216959A1 (en) 2005-09-09
MXPA06009749A (es) 2007-03-15
CA2556755C (en) 2013-06-11
ATE468807T1 (de) 2010-06-15
EP1729630A1 (de) 2006-12-13
US20050187453A1 (en) 2005-08-25
CN1933770A (zh) 2007-03-21
US7212847B2 (en) 2007-05-01
WO2005082237A1 (en) 2005-09-09

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