FR2983371B1 - Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes - Google Patents

Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes

Info

Publication number
FR2983371B1
FR2983371B1 FR1160739A FR1160739A FR2983371B1 FR 2983371 B1 FR2983371 B1 FR 2983371B1 FR 1160739 A FR1160739 A FR 1160739A FR 1160739 A FR1160739 A FR 1160739A FR 2983371 B1 FR2983371 B1 FR 2983371B1
Authority
FR
France
Prior art keywords
counter
digital conversion
conversion circuit
charges
comparator
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
FR1160739A
Other languages
English (en)
Other versions
FR2983371A1 (fr
Inventor
Jean-Luc Moro
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.)
Trixell SAS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Trixell SAS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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
Priority to FR1160739A priority Critical patent/FR2983371B1/fr
Application filed by Commissariat a lEnergie Atomique CEA, Trixell SAS, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to EP12784280.5A priority patent/EP2783466A1/fr
Priority to US14/360,581 priority patent/US9379730B2/en
Priority to CN201280066391.6A priority patent/CN104040895B/zh
Priority to JP2014542776A priority patent/JP6019486B2/ja
Priority to CA2856777A priority patent/CA2856777A1/fr
Priority to PCT/EP2012/072643 priority patent/WO2013075993A1/fr
Publication of FR2983371A1 publication Critical patent/FR2983371A1/fr
Application granted granted Critical
Publication of FR2983371B1 publication Critical patent/FR2983371B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H03M1/34—Analogue value compared with reference values
    • 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
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0238—Details making use of sensor-related data, e.g. for identification of sensor or optical parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
    • 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
    • H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Analogue/Digital Conversion (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Measurement Of Radiation (AREA)

Abstract

L'invention se situe dans le domaine des dispositifs imageurs comprenant un détecteur (11) générant des charges électriques sous l'effet d'un rayonnement photonique incident, et un circuit de conversion analogique-numérique (12) formant des moyens de lecture de la quantité de charges électriques générée. Le circuit de conversion analogique-numérique (12) comprend : * un comparateur (122) apte à basculer en fonction de la comparaison entre un potentiel (Va) sur un noeud d'intégration (A) et un potentiel de seuil prédéterminé (Vseuil), * un compteur (123) s'incrémentant à chaque basculement du comparateur, * un circuit d'injection de contre-charges (124) injectant une quantité Qc de contre-charges sur le noeud d'intégration (A) à chaque basculement du comparateur, et * des moyens de commande (125) déterminant la quantité Qc de contre-charges injectée. Le circuit de conversion analogique-numérique (12) se caractérise en ce que les moyens de commande (125) déterminent la quantité Qc de contre-charges injectée en fonction d'une valeur du compteur (123).
FR1160739A 2011-11-24 2011-11-24 Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes Active FR2983371B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR1160739A FR2983371B1 (fr) 2011-11-24 2011-11-24 Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes
US14/360,581 US9379730B2 (en) 2011-11-24 2012-11-14 Imaging device comprising a circuit for analog-digital conversion by means of the injection of a quantity of charges that varies as a function of the number of previous injections
CN201280066391.6A CN104040895B (zh) 2011-11-24 2012-11-14 包括用于通过注入根据先前注入的数量而变化的电荷数量来进行模数转换的电路的成像设备
JP2014542776A JP6019486B2 (ja) 2011-11-24 2012-11-14 前の注入数に応じて変化する電荷量の注入を用いた、アナログ−デジタル変換用の回路を備える撮像装置
EP12784280.5A EP2783466A1 (fr) 2011-11-24 2012-11-14 Dispositif imageur comprenant un circuit de conversion analogique-numérique par injection de charges en quantité variable en fonction du nombre d'injections précédentes
CA2856777A CA2856777A1 (fr) 2011-11-24 2012-11-14 Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes
PCT/EP2012/072643 WO2013075993A1 (fr) 2011-11-24 2012-11-14 Dispositif imageur comprenant un circuit de conversion analogique-numérique par injection de charges en quantité variable en fonction du nombre d'injections précédentes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1160739A FR2983371B1 (fr) 2011-11-24 2011-11-24 Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes

Publications (2)

Publication Number Publication Date
FR2983371A1 FR2983371A1 (fr) 2013-05-31
FR2983371B1 true FR2983371B1 (fr) 2014-01-10

Family

ID=47172647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1160739A Active FR2983371B1 (fr) 2011-11-24 2011-11-24 Dispositif imageur comprenant un circuit de conversion analogique-numerique par injection de charges en quantite variable en fonction du nombre d'injections precedentes

Country Status (7)

Country Link
US (1) US9379730B2 (fr)
EP (1) EP2783466A1 (fr)
JP (1) JP6019486B2 (fr)
CN (1) CN104040895B (fr)
CA (1) CA2856777A1 (fr)
FR (1) FR2983371B1 (fr)
WO (1) WO2013075993A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107224293B (zh) * 2016-03-25 2020-08-18 群创光电股份有限公司 X射线图像检测系统及其控制方法
CN109644245B (zh) 2016-04-04 2020-11-27 普诺飞思公司 基于采样和保持的时域对比视觉传感器及像素电路
WO2023153112A1 (fr) * 2022-02-08 2023-08-17 ローム株式会社 Circuit de détection et capteur optique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587087A (en) * 1967-10-17 1971-06-22 Rca Corp Digital companding loop for monobit encoder/decoder
JPS5442969A (en) * 1977-09-09 1979-04-05 Nec Corp Analog-digital converter
US4243974A (en) * 1978-02-24 1981-01-06 E. I. Du Pont De Nemours And Company Wide dynamic range analog to digital converter
JPS63262921A (ja) * 1987-04-20 1988-10-31 Nec Corp Ａ／ｄ変換回路
DK199901004A (da) * 1999-07-09 2001-01-10 Telital R & D Denmark As Sigma-delta modulator
FR2901653B1 (fr) * 2006-05-24 2008-08-22 Commissariat Energie Atomique Dispositif microelectronique convertisseur analogique/numerique a equilibrage de charges ameliore
CN102158229A (zh) * 2011-03-30 2011-08-17 上海北京大学微电子研究院 Adc失调电压和电荷注入消除技术

Also Published As

Publication number Publication date
CN104040895B (zh) 2017-09-01
JP6019486B2 (ja) 2016-11-02
US9379730B2 (en) 2016-06-28
CN104040895A (zh) 2014-09-10
FR2983371A1 (fr) 2013-05-31
WO2013075993A1 (fr) 2013-05-30
EP2783466A1 (fr) 2014-10-01
CA2856777A1 (fr) 2013-05-30
JP2015503277A (ja) 2015-01-29
US20150001379A1 (en) 2015-01-01

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