Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020137198 - SOLID-STATE IMAGE CAPTURING ELEMENT AND IMAGE CAPTURING DEVICE

Publication Number WO/2020/137198
Publication Date 02.07.2020
International Application No. PCT/JP2019/044087
International Filing Date 11.11.2019
IPC
H03M 1/12 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
12Analogue/digital converters
H03M 1/56 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
12Analogue/digital converters
50with intermediate conversion to time interval
56Input signal compared with linear ramp
H04N 5/347 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
341Extracting pixel data from an image sensor by controlling scanning circuits, e.g. by modifying the number of pixels having been sampled or to be sampled
347by combining or binning pixels in SSIS
H04N 5/3745 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
374Addressed sensors, e.g. MOS or CMOS sensors
3745having 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
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
H03M 1/12
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
12Analogue/digital converters
H03M 1/56
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
12Analogue/digital converters
50with intermediate conversion to time interval
56Input signal compared with linear ramp
H04N 5/347
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]
341Extracting pixel data from an image sensor by controlling scanning circuits, e.g. by modifying the number of pixels having been sampled or to be sampled
347by combining or binning pixels in SSIS
H04N 5/3745
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
3745having 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
H04N 5/378
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
378Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters
Applicants
  • ソニーセミコンダクタソリューションズ株式会社 SONY SEMICONDUCTOR SOLUTIONS CORPORATION [JP]/[JP]
Inventors
  • 井上 晃汰 Inoue, Kota
Agents
  • 丸島 敏一 MARUSHIMA, Toshikazu
Priority Data
2018-24205926.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SOLID-STATE IMAGE CAPTURING ELEMENT AND IMAGE CAPTURING DEVICE
(FR) DISPOSITIF DE CAPTURE D'IMAGE ET ÉLÉMENT DE CAPTURE D'IMAGE À SEMI-CONDUCTEURS
(JA) 固体撮像素子および撮像装置
Abstract
(EN)
The purpose of the present invention is to suppress a decrease in image quality when resolution is decreased without consuming electrical power wastefully in a solid-state image capturing element in which AD conversion is performed on a pixel-by-pixel basis. A solid-state image capturing element according to the present invention is provided with a plurality of pixels. Each of the plurality of pixels is provided with a comparison unit, an addition circuit, and a data memory unit. The comparison unit generates a difference signal, which is an amplified difference between an analog pixel signal that is assigned prescribed coordinates and a prescribed reference signal. The addition circuit generates a summation signal by analog-adding the difference signal and a difference signal relating to other coordinates neighboring said prescribed coordinates. The data memory unit holds a digital signal according to the summation signal, said digital signal indicating the time at which an output signal of the comparison unit is inverted.
(FR)
Le but de la présente invention est de supprimer une diminution de la qualité d'image lorsque la résolution est réduite sans consommer d'énergie électrique inutilement dans un élément de capture d'image à semi-conducteurs dans lequel la conversion AD est effectuée sur une base pixel par pixel. Un élément de capture d'image à semi-conducteurs selon la présente invention est pourvu d'une pluralité de pixels. Chaque pixel de la pluralité de pixels est pourvu d'une unité de comparaison, d'un circuit d'addition et d'une unité de mémoire de données. L'unité de comparaison génère un signal de différence, qui est une différence amplifiée entre un signal de pixel analogique qui est attribué à des coordonnées prescrites et un signal de référence prescrit. Le circuit d'addition génère un signal de sommation par addition analogique du signal de différence et d'un signal de différence relatif à d'autres coordonnées voisines desdites coordonnées prescrites. L'unité de mémoire de données contient un signal numérique en fonction du signal de sommation, ledit signal numérique indiquant le moment auquel un signal de sortie de l'unité de comparaison est inversé.
(JA)
画素毎にAD変換を行う固体撮像素子において、電力を無駄に消費すること無く、解像度を低下させる際の画質低下を抑制する。 固体撮像素子は、複数の画素を具備する。複数の画素のそれぞれには、比較部と、加算回路と、データ記憶部とが設けられる。比較部は、所定座標が割り当てられたアナログの画素信号と所定の参照信号との差分を増幅した差分信号を生成する。加算回路は、差分信号と、その所定座標に隣接する他の座標に係る差分信号とをアナログ加算して加算信号を生成する。データ記憶部は、加算信号に応じた比較部の出力信号が反転したときの時刻を示すデジタル信号を保持する。
Also published as
Latest bibliographic data on file with the International Bureau