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1. WO2017134969 - IMAGE SENSOR AND ELECTRONIC DEVICE WITH ACTIVE RESET CIRCUIT, AND METHOD OF OPERATING THE SAME

Publication Number WO/2017/134969
Publication Date 10.08.2017
International Application No. PCT/JP2016/089047
International Filing Date 28.12.2016
IPC
H04N 5/363 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors
357Noise processing, e.g. detecting, correcting, reducing or removing noise
363applied to reset noise, e.g. KTC noise
H04N 5/378 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors
369SSIS architecture; Circuitry associated therewith
378Readout circuits, e.g. correlated double sampling circuits, output amplifiers or A/D converters
CPC
H01L 27/14612
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
14including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
144Devices controlled by radiation
146Imager structures
14601Structural or functional details thereof
14609Pixel-elements with integrated switching, control, storage or amplification elements
14612involving a transistor
H04N 5/23245
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
23245Operation mode switching of cameras, e.g. between still/video, sport/normal or high/low resolution mode
H04N 5/3575
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
357Noise processing, e.g. detecting, correcting, reducing or removing noise
3575involving a correlated sampling function, e.g. correlated double or triple sampling
H04N 5/363
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
357Noise processing, e.g. detecting, correcting, reducing or removing noise
363applied to reset noise, e.g. KTC noise ; related to CMOS structures
H04N 5/369
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
369SSIS architecture; Circuitry associated therewith
H04N 5/3742
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
369SSIS architecture; Circuitry associated therewith
374Addressed sensors, e.g. MOS or CMOS sensors
3742Details of transfer or readout registers; split readout registers and multiple readout registers
Applicants
  • SONY CORPORATION [JP]/[JP]
Inventors
  • AYERS, Thomas
  • KANG, Jinsuk
  • CAREY, Brian
  • ESHEL, Noam
  • BRADY, Frederick
Agents
  • KAMEYA, Yoshiaki
  • KANEMOTO, Tetsuo
  • HAGIWARA, Yasushi
  • MATSUMOTO, Kazunori
Priority Data
15/014,36803.02.2016US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMAGE SENSOR AND ELECTRONIC DEVICE WITH ACTIVE RESET CIRCUIT, AND METHOD OF OPERATING THE SAME
(FR) CAPTEUR D'IMAGE ET DISPOSITIF ÉLECTRONIQUE AVEC CIRCUIT DE RÉINITIALISATION ACTIF, ET PROCÉDÉ D'UTILISATION DE CELUI-CI
Abstract
(EN)
An image sensor including a pixel circuit and an active reset circuit. The pixel circuit includes a light sensing element, a storage node selectively connected to the light sensing element, an output transistor configured to, during a readout operation, output a signal that is based on a potential of the charge storage node to an output line, and a selection transistor that controls the readout operation. The active reset circuit includes a first current path and a second current path, the first current path extending from a power supply node to the output line via the selection transistor and the output transistor, and the second current path extending from the power supply node to the output line via a first transistor and a second transistor. The active reset circuit is configured to, when the selection transistor and the first transistor are both ON, set a potential of the charge storage node based on a potential of a gate of the second transistor.
(FR)
L'invention concerne un capteur d'image contenant un circuit de pixel et un circuit de réinitialisation actif. Le circuit de pixel comprend un élément de détection de lumière, un nœud de stockage connecté sélectivement à l'élément de détection de lumière, un transistor de sortie configuré pour, pendant une opération de lecture, fournir un signal qui est basé sur un potentiel du nœud de stockage de charge à une ligne de sortie, et un transistor de sélection qui commande l'opération de lecture. Le circuit de réinitialisation actif contient un premier trajet de courant et un deuxième trajet de courant, le premier trajet de courant s'étendant d'un nœud d'alimentation électrique à la ligne de sortie par l'intermédiaire du transistor de sélection et du transistor de sortie, et le deuxième trajet de courant s'étendant du nœud d'alimentation électrique à la ligne de sortie par l'intermédiaire d'un premier transistor et d'un deuxième transistor. Le circuit de réinitialisation actif est configuré pour, lorsque le transistor de sélection et le premier transistor sont tous deux passants, définir un potentiel du nœud de stockage de charge en fonction d'un potentiel d'une grille du deuxième transistor.
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