WO1992002071A3 - Convertisseur analogique-numerique de type adaptatif a double gamme dynamique - Google Patents

Convertisseur analogique-numerique de type adaptatif a double gamme dynamique Download PDF

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Publication number
WO1992002071A3
WO1992002071A3 PCT/US1991/004974 US9104974W WO9202071A3 WO 1992002071 A3 WO1992002071 A3 WO 1992002071A3 US 9104974 W US9104974 W US 9104974W WO 9202071 A3 WO9202071 A3 WO 9202071A3
Authority
WO
WIPO (PCT)
Prior art keywords
digital converter
analog
dual range
adaptive
adaptive dual
Prior art date
Application number
PCT/US1991/004974
Other languages
English (en)
Other versions
WO1992002071A2 (fr
Inventor
Bruce Crane Mcdermott
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of WO1992002071A2 publication Critical patent/WO1992002071A2/fr
Publication of WO1992002071A3 publication Critical patent/WO1992002071A3/fr

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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
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/188—Multi-path, i.e. having a separate analogue/digital converter for each possible range

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

L'invention se rapporte à un convertisseur analogique-numérique de type adaptatif à double gamme dynamique, qui possède des propriétés adaptatives en particulier lorsqu'il est utilisé avec des analyseurs de films et qui comprend un agencement d'introduction des paramètres de mise en opération de façon à recevoir des signaux de commande générés par une source externe qui permettent de régler la grandeur de la phase de quantification numérique du convertisseur analogique-numérique afin de compenser les erreurs de quantification. Selon un autre mode de réalisation de la présente invention, le convertisseur analogique-numérique de type adaptatif à double gamme dynamique comprend en outre un organe de sélection de la gamme des signaux d'entrée, qui sélectionne un segment du signal analogique d'entrée pour le convertir sous forme numérique en utilisant une quantification à haute finesse de résolution.
PCT/US1991/004974 1990-07-16 1991-07-15 Convertisseur analogique-numerique de type adaptatif a double gamme dynamique WO1992002071A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US553,019 1990-07-16
US07/553,019 US5053771A (en) 1990-07-16 1990-07-16 Adaptive dual range analog to digital converter

Publications (2)

Publication Number Publication Date
WO1992002071A2 WO1992002071A2 (fr) 1992-02-06
WO1992002071A3 true WO1992002071A3 (fr) 1992-03-19

Family

ID=24207783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/004974 WO1992002071A2 (fr) 1990-07-16 1991-07-15 Convertisseur analogique-numerique de type adaptatif a double gamme dynamique

Country Status (4)

Country Link
US (1) US5053771A (fr)
EP (1) EP0495055A1 (fr)
JP (1) JPH05501945A (fr)
WO (1) WO1992002071A2 (fr)

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JP3112799B2 (ja) * 1994-11-25 2000-11-27 シャープ株式会社 読取り装置
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US10419701B2 (en) 2017-06-26 2019-09-17 Facebook Technologies, Llc Digital pixel image sensor
US10917589B2 (en) 2017-06-26 2021-02-09 Facebook Technologies, Llc Digital pixel with extended dynamic range
US10598546B2 (en) 2017-08-17 2020-03-24 Facebook Technologies, Llc Detecting high intensity light in photo sensor
US11393867B2 (en) 2017-12-06 2022-07-19 Facebook Technologies, Llc Multi-photodiode pixel cell
US10969273B2 (en) * 2018-03-19 2021-04-06 Facebook Technologies, Llc Analog-to-digital converter having programmable quantization resolution
US11054632B1 (en) 2018-03-21 2021-07-06 Facebook Technologies, Llc Liquid filled pixelated film
US10553180B1 (en) 2018-03-21 2020-02-04 Facebook Technologies, Llc Dynamically structured protective film for maximum display resolution
US11004881B2 (en) 2018-04-03 2021-05-11 Facebook Technologies, Llc Global shutter image sensor
US10685594B2 (en) 2018-05-08 2020-06-16 Facebook Technologies, Llc Calibrating brightness variation in a display
US11089241B2 (en) 2018-06-11 2021-08-10 Facebook Technologies, Llc Pixel cell with multiple photodiodes
US11089210B2 (en) 2018-06-11 2021-08-10 Facebook Technologies, Llc Configurable image sensor
US11906353B2 (en) 2018-06-11 2024-02-20 Meta Platforms Technologies, Llc Digital pixel with extended dynamic range
US11463636B2 (en) 2018-06-27 2022-10-04 Facebook Technologies, Llc Pixel sensor having multiple photodiodes
US10897586B2 (en) 2018-06-28 2021-01-19 Facebook Technologies, Llc Global shutter image sensor
US10931884B2 (en) 2018-08-20 2021-02-23 Facebook Technologies, Llc Pixel sensor having adaptive exposure time
US11956413B2 (en) 2018-08-27 2024-04-09 Meta Platforms Technologies, Llc Pixel sensor having multiple photodiodes and shared comparator
US11595602B2 (en) 2018-11-05 2023-02-28 Meta Platforms Technologies, Llc Image sensor post processing
US11102430B2 (en) 2018-12-10 2021-08-24 Facebook Technologies, Llc Pixel sensor having multiple photodiodes
US11218660B1 (en) 2019-03-26 2022-01-04 Facebook Technologies, Llc Pixel sensor having shared readout structure
US11943561B2 (en) 2019-06-13 2024-03-26 Meta Platforms Technologies, Llc Non-linear quantization at pixel sensor
US11936998B1 (en) 2019-10-17 2024-03-19 Meta Platforms Technologies, Llc Digital pixel sensor having extended dynamic range
US11902685B1 (en) 2020-04-28 2024-02-13 Meta Platforms Technologies, Llc Pixel sensor having hierarchical memory
US11910114B2 (en) 2020-07-17 2024-02-20 Meta Platforms Technologies, Llc Multi-mode image sensor
US11956560B2 (en) 2020-10-09 2024-04-09 Meta Platforms Technologies, Llc Digital pixel sensor having reduced quantization operation

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DE3105782C2 (de) * 1980-02-18 1986-09-25 Sony/Tektronix Corp., Tokio/Tokyo Analog-Digitalumsetzer
DE3640672A1 (de) * 1985-12-24 1987-07-02 Sony Tektronix Corp Verfahren und vorrichtung zur kalibrierung einer analog/digitalwandlereinrichtung
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EP0234034A1 (fr) * 1986-02-07 1987-09-02 ANT Nachrichtentechnik GmbH Dispositif de conversion analogique-numérique de signaux électriques analogiques

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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3105782C2 (de) * 1980-02-18 1986-09-25 Sony/Tektronix Corp., Tokio/Tokyo Analog-Digitalumsetzer
EP0177803A2 (fr) * 1984-09-14 1986-04-16 Siemens-Elema AB Méthode et dispositif de numérisation d'un signal à haute résolution
DE3640672A1 (de) * 1985-12-24 1987-07-02 Sony Tektronix Corp Verfahren und vorrichtung zur kalibrierung einer analog/digitalwandlereinrichtung
EP0231950A2 (fr) * 1986-02-07 1987-08-12 Fuji Photo Film Co., Ltd. Méthode de conversion analogique-numérique non-linéaire
EP0234034A1 (fr) * 1986-02-07 1987-09-02 ANT Nachrichtentechnik GmbH Dispositif de conversion analogique-numérique de signaux électriques analogiques

Also Published As

Publication number Publication date
WO1992002071A2 (fr) 1992-02-06
EP0495055A1 (fr) 1992-07-22
US5053771A (en) 1991-10-01
JPH05501945A (ja) 1993-04-08

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