WO2005082236A3 - Multi-bit adc with sigma-delta modulation - Google Patents
Multi-bit adc with sigma-delta modulation Download PDFInfo
- Publication number
- WO2005082236A3 WO2005082236A3 PCT/US2005/005913 US2005005913W WO2005082236A3 WO 2005082236 A3 WO2005082236 A3 WO 2005082236A3 US 2005005913 W US2005005913 W US 2005005913W WO 2005082236 A3 WO2005082236 A3 WO 2005082236A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sigma
- delta modulator
- bit adc
- delta modulation
- red
- Prior art date
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, 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
- 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
Abstract
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2556754A CA2556754C (en) | 2004-02-25 | 2005-02-24 | Multi-bit adc with sigma-delta modulation |
AU2005216956A AU2005216956A1 (en) | 2004-02-25 | 2005-02-24 | Multi-bit ADC with sigma-delta modulation |
DE602005014618T DE602005014618D1 (en) | 2004-02-25 | 2005-02-24 | MULTI-BIT ADC WITH SIGMA DELTA MODULATION |
EP05723680A EP1722671B1 (en) | 2004-02-25 | 2005-02-24 | Multi-bit adc with sigma-delta modulation |
MXPA06009748A MXPA06009748A (en) | 2004-02-25 | 2005-02-24 | Multi-bit adc with sigma-delta modulation. |
JP2007500973A JP4717059B2 (en) | 2004-02-25 | 2005-02-24 | Multi-bit ADC using sigma-delta modulation |
AT05723680T ATE432039T1 (en) | 2004-02-25 | 2005-02-24 | MULTI-BIT ADC WITH SIGMA DELTA MODULATION |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/787,542 | 2004-02-25 | ||
US10/787,542 US7142142B2 (en) | 2004-02-25 | 2004-02-25 | Multi-bit ADC with sigma-delta modulation |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005082236A2 WO2005082236A2 (en) | 2005-09-09 |
WO2005082236A3 true WO2005082236A3 (en) | 2005-12-01 |
Family
ID=34861916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/005913 WO2005082236A2 (en) | 2004-02-25 | 2005-02-24 | Multi-bit adc with sigma-delta modulation |
Country Status (12)
Country | Link |
---|---|
US (2) | US7142142B2 (en) |
EP (1) | EP1722671B1 (en) |
JP (1) | JP4717059B2 (en) |
KR (1) | KR20070024491A (en) |
CN (1) | CN1929778A (en) |
AT (1) | ATE432039T1 (en) |
AU (1) | AU2005216956A1 (en) |
CA (1) | CA2556754C (en) |
DE (1) | DE602005014618D1 (en) |
ES (1) | ES2327759T3 (en) |
MX (1) | MXPA06009748A (en) |
WO (1) | WO2005082236A2 (en) |
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- 2004-02-25 US US10/787,542 patent/US7142142B2/en not_active Expired - Lifetime
-
2005
- 2005-02-24 DE DE602005014618T patent/DE602005014618D1/en active Active
- 2005-02-24 JP JP2007500973A patent/JP4717059B2/en not_active Expired - Fee Related
- 2005-02-24 AT AT05723680T patent/ATE432039T1/en not_active IP Right Cessation
- 2005-02-24 CA CA2556754A patent/CA2556754C/en not_active Expired - Fee Related
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EP1722671A2 (en) | 2006-11-22 |
JP2007523727A (en) | 2007-08-23 |
US7142142B2 (en) | 2006-11-28 |
AU2005216956A1 (en) | 2005-09-09 |
CA2556754C (en) | 2013-06-11 |
JP4717059B2 (en) | 2011-07-06 |
ATE432039T1 (en) | 2009-06-15 |
EP1722671B1 (en) | 2009-05-27 |
DE602005014618D1 (en) | 2009-07-09 |
US7355539B2 (en) | 2008-04-08 |
ES2327759T3 (en) | 2009-11-03 |
CA2556754A1 (en) | 2005-09-09 |
WO2005082236A2 (en) | 2005-09-09 |
US20050184895A1 (en) | 2005-08-25 |
MXPA06009748A (en) | 2007-03-15 |
CN1929778A (en) | 2007-03-14 |
US20070132618A1 (en) | 2007-06-14 |
KR20070024491A (en) | 2007-03-02 |
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