CA986225A - Dual slope analog to digital converter - Google Patents

Dual slope analog to digital converter

Info

Publication number
CA986225A
CA986225A CA107,926A CA107926A CA986225A CA 986225 A CA986225 A CA 986225A CA 107926 A CA107926 A CA 107926A CA 986225 A CA986225 A CA 986225A
Authority
CA
Canada
Prior art keywords
digital converter
dual slope
slope analog
analog
dual
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.)
Expired
Application number
CA107,926A
Other versions
CA107926S (en
Inventor
Austin T. Kelly
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.)
Schlumberger NV
Original Assignee
Schlumberger NV
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 Schlumberger NV filed Critical Schlumberger NV
Application granted granted Critical
Publication of CA986225A publication Critical patent/CA986225A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • 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
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Measurement Of Current Or Voltage (AREA)
CA107,926A 1970-03-16 1971-03-16 Dual slope analog to digital converter Expired CA986225A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1960570A 1970-03-16 1970-03-16
US6427570A 1970-08-17 1970-08-17

Publications (1)

Publication Number Publication Date
CA986225A true CA986225A (en) 1976-03-23

Family

ID=26692393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA107,926A Expired CA986225A (en) 1970-03-16 1971-03-16 Dual slope analog to digital converter

Country Status (6)

Country Link
US (1) US3710374A (en)
CA (1) CA986225A (en)
DE (1) DE2112374A1 (en)
FR (1) FR2083303B1 (en)
GB (1) GB1346947A (en)
SE (1) SE368651B (en)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
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US3872466A (en) * 1973-07-19 1975-03-18 Analog Devices Inc Integrating analog-to-digital converter having digitally-derived offset error compensation and bipolar operation without zero discontinuity
US3930252A (en) * 1973-12-26 1975-12-30 United Systems Corp Bipolar dual-slope analog-to-digital converter
GB1552625A (en) * 1975-05-13 1979-09-19 Johnson & Starley Ltd Apparatus for controlling the speed of a motor
CA1079858A (en) * 1975-05-19 1980-06-17 Adrian K. Dorsman Analog-to-digital converter
US4720841A (en) * 1985-05-15 1988-01-19 Square D Company Multi-channel voltage-to-frequency convertor
JPS62264728A (en) * 1986-05-12 1987-11-17 Minolta Camera Co Ltd Analog-digital converter
US5229771A (en) * 1992-03-16 1993-07-20 Integrated Semiconductor Solutions Analog to digital converter for converting multiple analog input signals to corresponding digital output signals during one conversion cycle
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US7043299B2 (en) 2000-09-18 2006-05-09 Cameron Health, Inc. Subcutaneous implantable cardioverter-defibrillator employing a telescoping lead
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US6834204B2 (en) 2001-11-05 2004-12-21 Cameron Health, Inc. Method and apparatus for inducing defibrillation in a patient using a T-shock waveform
US7076296B2 (en) * 2000-09-18 2006-07-11 Cameron Health, Inc. Method of supplying energy to subcutaneous cardioverter-defibrillator and pacer
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US6952608B2 (en) * 2001-11-05 2005-10-04 Cameron Health, Inc. Defibrillation pacing circuitry
US6927721B2 (en) * 2001-11-05 2005-08-09 Cameron Health, Inc. Low power A/D converter
US6865417B2 (en) * 2001-11-05 2005-03-08 Cameron Health, Inc. H-bridge with sensing circuit
US6866044B2 (en) 2000-09-18 2005-03-15 Cameron Health, Inc. Method of insertion and implantation of implantable cardioverter-defibrillator canisters
US7146212B2 (en) * 2000-09-18 2006-12-05 Cameron Health, Inc. Anti-bradycardia pacing for a subcutaneous implantable cardioverter-defibrillator
US6937907B2 (en) * 2000-09-18 2005-08-30 Cameron Health, Inc. Subcutaneous electrode for transthoracic conduction with low-profile installation appendage and method of doing same
US6788974B2 (en) * 2000-09-18 2004-09-07 Cameron Health, Inc. Radian curve shaped implantable cardioverter-defibrillator canister
US7194309B2 (en) * 2000-09-18 2007-03-20 Cameron Health, Inc. Packaging technology for non-transvenous cardioverter/defibrillator devices
US6721597B1 (en) * 2000-09-18 2004-04-13 Cameron Health, Inc. Subcutaneous only implantable cardioverter defibrillator and optional pacer
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US7090682B2 (en) 2000-09-18 2006-08-15 Cameron Health, Inc. Method and apparatus for extraction of a subcutaneous electrode
US7069080B2 (en) * 2000-09-18 2006-06-27 Cameron Health, Inc. Active housing and subcutaneous electrode cardioversion/defibrillating system
US7392085B2 (en) * 2001-11-21 2008-06-24 Cameron Health, Inc. Multiple electrode vectors for implantable cardiac treatment devices
US7330757B2 (en) * 2001-11-21 2008-02-12 Cameron Health, Inc. Method for discriminating between ventricular and supraventricular arrhythmias
US7248921B2 (en) * 2003-06-02 2007-07-24 Cameron Health, Inc. Method and devices for performing cardiac waveform appraisal
US20040199082A1 (en) * 2003-04-03 2004-10-07 Ostroff Alan H. Selctable notch filter circuits
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US7477935B2 (en) * 2004-11-29 2009-01-13 Cameron Health, Inc. Method and apparatus for beat alignment and comparison
US7655014B2 (en) * 2004-12-06 2010-02-02 Cameron Health, Inc. Apparatus and method for subcutaneous electrode insertion
US8229563B2 (en) * 2005-01-25 2012-07-24 Cameron Health, Inc. Devices for adapting charge initiation for an implantable cardioverter-defibrillator
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US7555338B2 (en) * 2005-04-26 2009-06-30 Cameron Health, Inc. Methods and implantable devices for inducing fibrillation by alternating constant current
US8116867B2 (en) * 2005-08-04 2012-02-14 Cameron Health, Inc. Methods and devices for tachyarrhythmia sensing and high-pass filter bypass
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US7623909B2 (en) * 2006-05-26 2009-11-24 Cameron Health, Inc. Implantable medical devices and programmers adapted for sensing vector selection
US20080015644A1 (en) * 2006-07-14 2008-01-17 Cameron Health, Inc. End of life battery testing in an implantable medical device
US8718793B2 (en) 2006-08-01 2014-05-06 Cameron Health, Inc. Electrode insertion tools, lead assemblies, kits and methods for placement of cardiac device electrodes
US7623913B2 (en) 2006-08-01 2009-11-24 Cameron Health, Inc. Implantable medical devices using heuristic filtering in cardiac event detection
US7877139B2 (en) 2006-09-22 2011-01-25 Cameron Health, Inc. Method and device for implantable cardiac stimulus device lead impedance measurement
US8014851B2 (en) * 2006-09-26 2011-09-06 Cameron Health, Inc. Signal analysis in implantable cardiac treatment devices
US7623916B2 (en) * 2006-12-20 2009-11-24 Cameron Health, Inc. Implantable cardiac stimulus devices and methods with input recharge circuitry
JP2016512460A (en) 2013-03-11 2016-04-28 キャメロン ヘルス、 インコーポレイテッド Method and apparatus for realizing a dual reference for arrhythmia detection
US9579065B2 (en) 2013-03-12 2017-02-28 Cameron Health Inc. Cardiac signal vector selection with monophasic and biphasic shape consideration
US10656032B2 (en) 2017-03-28 2020-05-19 Nxp Usa, Inc. Temperature sensor in an integrated circuit and method of calibrating the temperature sensor
WO2019060461A1 (en) * 2017-09-19 2019-03-28 The Regents Of University Of California Wide dynamic range curent measurement front-end
US10852197B2 (en) 2018-04-09 2020-12-01 Nxp Usa, Inc. Temperature sensor in an integrated circuit having offset cancellation

Also Published As

Publication number Publication date
GB1346947A (en) 1974-02-13
FR2083303B1 (en) 1974-05-31
DE2112374A1 (en) 1971-10-07
US3710374A (en) 1973-01-09
SE368651B (en) 1974-07-08
FR2083303A1 (en) 1971-12-17

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