WO2025152030 - PIXEL CIRCUIT AND IMAGE SENSOR
National phase entry is expected:
Publication Number
WO/2025/152030
Publication Date
24.07.2025
International Application No.
PCT/CN2024/072531
International Filing Date
16.01.2024
Title **
[English]
PIXEL CIRCUIT AND IMAGE SENSOR
[French]
CIRCUIT DE PIXEL ET CAPTEUR D'IMAGE
Applicants **
HUAWEI TECHNOLOGIES CO., LTD.
Inventors
MONOI, Makoto
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
CNIPA
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1678 | |
| EPO | Filing, Examination, Granting | 12186 | |
| Japan | Filing, Examination, Granting | 1937 | |
| South Korea | Filing, Examination, Granting | 1578 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,119
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Abstract[English]
Provided is a pixel circuit and an image sensor that have a wider dynamic range than the conventional one and can read electrical signals at high speeds while suppressing power consumption. The pixel circuit comprises a photodiode, a measuring part that measures a light amount according to a current output from one end of the photodiode, and a gate part provided between the photodiode and the measuring part. The pixel circuit is supplied with a recharge signal to set one end of the photodiode to a predetermined potential. The gate part is configured to connect the photodiode and the measuring part such that the measuring part measures the light amount at a plurality of time points in a single cycle of the recharge signal.[French]
L'invention concerne un circuit de pixels et un capteur d'image qui ont une plage dynamique plus large que ceux conventionnels et qui peuvent lire des signaux électriques à grande vitesse tout en réduisant la consommation d'énergie. Le circuit de pixels comprend une photodiode, une partie de mesure qui mesure une quantité de lumière en fonction d'un courant sortant d'une extrémité de la photodiode, et une partie de grille prévue entre la photodiode et la partie de mesure. Le circuit de pixels est alimenté par un signal de recharge afin de régler une extrémité de la photodiode à un potentiel prédéterminé. La partie grille est configurée pour connecter la photodiode et la partie de mesure de telle sorte que la partie de mesure mesure la quantité de lumière à plusieurs instants dans un seul cycle du signal de recharge.