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1. WO2020006174 - PIXEL SENSOR HAVING MULTIPLE PHOTODIODES

Publication Number WO/2020/006174
Publication Date 02.01.2020
International Application No. PCT/US2019/039410
International Filing Date 27.06.2019
IPC
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
369
SSIS architecture; Circuitry associated therewith
378
Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
369
SSIS architecture; Circuitry associated therewith
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
369
SSIS architecture; Circuitry associated therewith
374
Addressed sensors, e.g. MOS or CMOS sensors
3745
having additional components embedded within a pixel or connected to a group of pixels within a sensor matrix, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
357
Noise processing, e.g. detecting, correcting, reducing or removing noise
359
applied to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
H04N 5/378 (2011.01)
H04N 5/369 (2011.01)
H04N 5/3745 (2011.01)
H04N 5/359 (2011.01)
CPC
H03M 1/18
H04N 5/35536
H04N 5/3559
H04N 5/3594
H04N 5/37452
H04N 5/37455
Applicants
  • FACEBOOK TECHNOLOGIES, LLC [US/US]; 1601 Willow Road Menlo Park, CA 94025, US
Inventors
  • BERKOVICH, Andrew, Samuel; US
  • LIU, Xinqiao; US
  • CHEN, Song; US
  • TRAIL, Nicholas, Daniel; US
  • SCHAUB, Michael, Patrick; US
Agents
  • ROBINSON, Ross, T.; US
  • MOON, William, Allen; US
  • MITANI, Shoaib, A.; US
  • THOMAS, Daniel, A.; US
Priority Data
16/453,53826.06.2019US
62/690,57127.06.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PIXEL SENSOR HAVING MULTIPLE PHOTODIODES
(FR) CAPTEUR À PIXELS AYANT UNE PLURALITÉ DE PHOTODIODES
Abstract
(EN)
In one example, an apparatus comprises: a plurality of photodiodes, one or more charge sensing units, one or more analog-to-digital converters (ADCs), and a controller. The controller is configured to: enable the each photodiode to generate charge in response to a different component of the incident light; transfer the charge from the plurality of photodiodes to the one or more charge sensing units to convert to voltages; receive a selection of one or more quantization processes of a plurality of quantization processes corresponding to a plurality of intensity ranges; based on the selection, control the one or more ADCs to perform the selected one or more quantization processes to quantize the voltages from the one or more charge sensing units to digital values representing components of a pixel of different wavelength ranges; and generate a pixel value based on the digital values.
(FR)
Dans un exemple, un appareil comprend une pluralité de photodiodes, une ou plusieurs unités de détection de charge, un ou plusieurs convertisseurs analogique-numérique (CAN), et un contrôleur. Le contrôleur est configuré pour : permettre à chaque photodiode de générer une charge en réponse à une composante différente de la lumière incidente ; transférer la charge de la pluralité de photodiodes à la ou aux unités de détection de charge en vue de sa conversion en tensions ; recevoir une sélection d'un ou plusieurs processus de quantification d'une pluralité de processus de quantification correspondant à une pluralité de plages d'intensité ; sur la base de la sélection, commander au ou aux CAN d’exécuter le ou les processus de quantification sélectionnés afin de quantifier les tensions à partir de la ou des unités de détection de charge à des valeurs numériques représentant des composantes d'un pixel de différentes plages de longueurs d'onde ; et générer une valeur de pixel sur la base des valeurs numériques.
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