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1
CN110062182B
高帧频面阵图像传感器像素信号交错分时读出方法
Grant
Publication/Patent Number: CN110062182B Publication Date: 2021-03-30 Application Number: 201910302389.8 Filing Date: 2019-04-16 Inventor: 李扬   付超   姜涛   刘洋   马成   王欣洋   Assignee: 长春长光辰芯光电技术有限公司   IPC: H04N5/378 Abstract: 本发明涉及一种高帧频面阵图像传感器像素信号交错分时读出方法,该方法如下:在行选单路中采用两个地址指针;放大电路中包含相互并联且结构相同的两个读出控制支路;第一读出控制支路由第一存储电容C1与第一支路开关S1串联构成;第二读出控制支路由第二存储电容C2与第二支路开关S2串联构成;通过地址指针控制各行像素的复位开关和转移控制开关的时序,地址指针控制各行像素中行选开关的时序,将像素的光电二极管PD电荷转移、存储节点FD清空和光电二极管PD清空分散到不同行时间。本发明缩短了整体的行时间。能够实现高帧频面阵图像传感器像素信号的读出,且不需要付出功耗增加和精度下降的代价。
2
CN109587420B
一种图像传感器高精度读出电路结构及工作时序控制方法
Grant
Publication/Patent Number: CN109587420B Publication Date: 2021-04-30 Application Number: 201811329846.4 Filing Date: 2018-11-09 Inventor: 何学红   张远   董林妹   李志芳   金毓奇   Assignee: 上海集成电路研发中心有限公司   成都微光集电科技有限公司   IPC: H04N5/378 Abstract: 本发明公开了一种图像传感器高精度读出电路结构,包括相耦合设置的一可编程增益放大器电路和一模拟数字转换器电路,可编程增益放大器电路耦合有一采样电容、一反馈电容、一失调存储电容、一运算放大器以及一复位控制开关、一第一失调存储控制开关、一第二失调存储控制开关,模拟数字转换器电路耦合有一比较器和一计数器,第二失调存储控制开关的两端分别连接运算放大器的反向输入端和比较器的输出端,比较器的正向输入端连接运算放大器的输出端,比较器的反向输入端连接模拟数字转换器电路的参考电压。本发明可节省面积和功耗,降低控制时序复杂度,配合工作时序,可以实现高精度的模拟信号放大以及高精度模数转换。
3
CN107431775B
图像传感器、处理方法和电子设备
Grant
Publication/Patent Number: CN107431775B Publication Date: 2021-04-16 Application Number: 201680015314.6 Filing Date: 2016-03-09 Inventor: 志田左野香   Assignee: 索尼公司   IPC: H04N5/378 Abstract: 本技术涉及能够抑制由图像传感器摄取的图像的品质的劣化的图像传感器、处理方法和电子设备。所述图像传感器包括:像素阵列部,所述像素阵列部被配置成执行光电转换并且被配置成具有排列在所述像素阵列部中的用于输出各自的像素信号的多个像素;以及存储部,所述存储部被配置成存储从所述像素阵列部输出的所述像素信号。在除了对所述存储部进行访问以向所述存储部写入和从所述存储部读取所述像素信号的周期以外的非访问周期内,所述图像传感器向所述存储部写入和从所述存储部读取虚拟数据。本技术例如能够被应用到用于摄取图像的图像传感器等。
4
EP3783884A1
READOUT CIRCUIT, IMAGE SENSOR AND ELECTRONIC DEVICE
Publication/Patent Number: EP3783884A1 Publication Date: 2021-02-24 Application Number: 19816183.8 Filing Date: 2019-06-20 Inventor: Li, Liang   Assignee: Shenzhen Goodix Technology Co., Ltd.   IPC: H04N5/378 Abstract: Embodiments of the present application provide a readout circuit, an image sensor and an electronic device, which could effectively reduce an area and power consumption of the image sensor. The readout circuit includes a plurality of capacitors, a switch circuit and an output circuit; where the plurality of capacitors are connected to the output circuit through the switch circuit; the plurality of capacitors are configured to store output signals of a plurality of pixel circuits, respectively; and the output circuit is configured to output signals stored by the plurality of capacitors through the switch circuit one-by-one.
5
US10986298B2
Correlated double sampling circuit, an image sensor, and a method for varying output signals in a correlated double sampling circuit
Publication/Patent Number: US10986298B2 Publication Date: 2021-04-20 Application Number: 16/657,164 Filing Date: 2019-10-18 Inventor: Jung, Yun Hwan   Kang, Sun Yool   Kim, Kyung Tae   Chae, Hee Sung   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H04N5/378 Abstract: A correlated double sampling (CDS) circuit including a comparator, the comparator including: a signal input unit including a first transistor configured to receive a ramp signal and a second transistor configured to receive a pixel signal; and an offset generator unit connected to the signal input unit, the offset generator unit including at least two transistors, wherein in the offset generator unit, an aspect ratio of the at least two transistors in an auto-zeroing period and an aspect ratio of the at least two transistors in a pixel signal decoding period are different from each other.
6
US2021021775A1
METHODS AND SYSTEMS FOR REPRESENTING VIDEO IN CONTINUOUS TIME
Publication/Patent Number: US2021021775A1 Publication Date: 2021-01-21 Application Number: 16/839,136 Filing Date: 2020-04-03 Inventor: Lee, Chong   Assignee: Solsona Enterprise, LLC   IPC: H04N5/378 Abstract: The present invention encompasses methods and systems of representing video in continuous time. Photons incident on pixels in an imaging array are continuously captured using a continuous time imaging sensor array to produce respective continuous time analog signals without any discontinuity in time. At each pixel, the respective continuous time analog signal is modulated into respective continuous time binary analog signals. The continuous time binary analog signals from all pixels can then be aggregated to produce a frame free video. Further, at each pixel, the respective continuous time analog signal may be modulated using a continuous time sigma delta modulator to produce the corresponding continuous time binary analog signal. The sigma delta modulator may be one of charge-based or current-based.
7
CN112261327A
像素探测器及其分布式前端模数变换与读出电路、方法
Substantial Examination
Publication/Patent Number: CN112261327A Publication Date: 2021-01-22 Application Number: 202011268548.6 Filing Date: 2020-11-13 Inventor: 李木槿   魏微   江晓山   Assignee: 中国科学院高能物理研究所   IPC: H04N5/378 Abstract: 本发明公开了一种像素探测器及其分布式前端模数变换与读出电路、方法。本发明电路包括斜波电压发生器、斜波电压缓冲器、多个像素内模数变换及读出电路;其中斜波电压发生器与斜波电压缓冲器连接,将斜坡电压扇入至各像素内的比较器;每一像素内模数变换及读出电路包括一采样保持电路、一比较器和一计数器,采样保持电路与比较器的一输入端连接;比较器的另一输入端与斜波电压缓冲器连接;比较器的输出端与计数器的第一输入端连接,控制该计数器的计数停止;计数器的第二输入端用于接收时钟信号,计数器的第三输入端收计数/移位控制信号,计数器的第四输入端接收前一像素中的计数器输出信号,计数器的输出端与后一像素中的计数器的输入端连接。
8
US2021021773A1
IMAGE SENSING DEVICE AND IMAGE SENSING METHOD
Publication/Patent Number: US2021021773A1 Publication Date: 2021-01-21 Application Number: 15/931,554 Filing Date: 2020-05-13 Inventor: Lee, Sywe-neng   Chung, Chen-chien   Assignee: Eagle Vision Tech Limited   IPC: H04N5/378 Abstract: An image sensing device and an image sensing method are provided. The image sensing device comprises an image sensing array, multiple analog-to-digital converters, a multiplexer, a write controller, a memory, and a read controller. Each of pixel capturing areas of the image sensing array acquires multiple analog pixel data sequentially at the same time. Each of the analog-to-digital converters converts these analog pixel data into multiple digital pixel data. The write controller receives the digital pixel data generated by the analog-to-digital converters from the multiplexer, and writes the digital pixel data to the memory according to a first pixel arrangement of the digital pixel data. The read controller reads the digital pixel data from the memory according to a second pixel arrangement related to the video format, thereby generating a video signal of the video format.
9
CN111556266B
一种基于背照式图像传感器的高动态范围读出电路
Grant
Publication/Patent Number: CN111556266B Publication Date: 2021-02-09 Application Number: 202010339328.1 Filing Date: 2020-04-26 Inventor: 耿莉   何程扬   张冰   辛有泽   赵泽亮   Assignee: 西安交通大学   IPC: H04N5/378 Abstract: 本发明公开了一种基于背照式图像传感器的高动态范围读出电路,模拟相关采样和可编程增益放大器,通过多次采样保持的开关切换策略及调整至设定的增益,将像素内读出的电压信号预防大后传输至下级模数转换器;折叠循环式模数转化器,将前级预放大采样后的信号进行量化;数字相关采样合并逻辑电路,得到真正的数字量化信号;时序控制电路,逐行对每列的模数转换器进行控制;输入信号依次经过模拟相关采样和可编程增益放大器,折叠循环式模数转化器和数字相关采样合并逻辑电路后输出量化信号,时钟信号经时序控制电路后分别输入折叠循环式模数转化器和数字相关采样合并逻辑电路。本发明减小量化误差,提高动态范围,降低读出电路的整体功耗与面积。
10
US2021044772A1
SOLID-STATE IMAGING ELEMENT, IMAGING APPARATUS, AND METHOD FOR CONTROLLING SOLID-STATE IMAGING ELEMENT
Publication/Patent Number: US2021044772A1 Publication Date: 2021-02-11 Application Number: 16/968,199 Filing Date: 2018-12-04 Inventor: Hung, Luong Dinh   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/378 Abstract: To improve an SN ratio in a solid-state imaging element provided with a capacitance for reducing a noise component. A first capacitance connection circuit connects one end of a first capacitance to a first signal line in a case where a first pixel signal is transmitted via the first signal line. A second capacitance connection circuit connects one end of a second capacitance to a second signal line in a case where a second pixel signal is transmitted via the second signal line. An intercapacitance connection circuit connects one end of each of the first capacitance and the second capacitance in a case where one of the first pixel signal and the second pixel signal is transmitted, and disconnects one end of each of the first capacitance and the second capacitance in a case where both the first pixel signal and the second pixel signal are transmitted.
11
US2021006741A1
RADIATION IMAGE CAPTURING APPARATUS
Publication/Patent Number: US2021006741A1 Publication Date: 2021-01-07 Application Number: 17/029,895 Filing Date: 2020-09-23 Inventor: Iwakiri, Naoto   Assignee: FUJIFILM Corporation   IPC: H04N5/378 Abstract: A radiation image capturing apparatus includes a sensor substrate including a flexible base material and a plurality of pixels accumulating electric charges generated in accordance with radiation, a flexible first cable of which one end is electrically connected to a connection region disposed on a predetermined side of the sensor substrate, and a first circuit substrate that is electrically connected to the other end of the first cable and in which a first component of a circuit unit driven in a case of reading out electric charges accumulated in the plurality of pixels is mounted in a state where a side having a predetermined length or greater or the longest side is aligned in an intersection direction intersecting with the predetermined side of the sensor substrate to which the first cable is connected.
12
US2021006739A1
SYSTEM AND METHOD FOR CORRELATED DOUBLE SAMPLING
Publication/Patent Number: US2021006739A1 Publication Date: 2021-01-07 Application Number: 16/918,970 Filing Date: 2020-07-01 Inventor: Wu, Linkun   Assignee: IMEC vzw   IPC: H04N5/378 Abstract: A circuit for correlated double sampling is disclosed. In one aspect, the circuit comprises a reset switch connected with an input node, and with a first node of a first capacitor; a sampling switch connected with the input node, and with a first node of a second capacitor; a second node of the first/second capacitor is adapted to be connected with a first/second reference node, of which at least one using a reference switch; a first switch connected between the second node of the first capacitor and the first node of the second capacitor; a second switch connected between the first node of the first capacitor and the second node of the second capacitor.
13
US2021058580A1
IMAGING SYSTEMS AND METHODS FOR PERFORMING FLOATING GATE READOUT VIA DISTRIBUTED PIXEL INTERCONNECTS FOR ANALOG DOMAIN REGIONAL FEATURE EXTRACTION
Publication/Patent Number: US2021058580A1 Publication Date: 2021-02-25 Application Number: 15/929,733 Filing Date: 2020-05-19 Inventor: Panicacci, Roger   Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC   IPC: H04N5/369 Abstract: Imaging circuitry may include circuits for implementing feature extraction. The imaging circuitry may include pixels configured to generate pixel values. The pixel values may be optionally scaled by kernel weighting factors. The pixels may be coupled together via a source follower drain path, and a source follower gate in one of the pixels may be selected for readout by coupling that source follower gate to an integrator circuit to compute a feature result. Multiple feature results may be computed successively to detect an event change in either the digital domain or the analog domain. Such feature detection schemes may be applied to detect horizontally-oriented features, vertically-oriented features, diagonally-oriented features, or irregularly shaped features.
14
CN112399114A
一种快速的DVS图像传感器列信号读出方法
Substantial Examination
Publication/Patent Number: CN112399114A Publication Date: 2021-02-23 Application Number: 201910744100.8 Filing Date: 2019-08-13 Inventor: 徐江涛   苗津   高志远   李嘉文   刘伯文   Assignee: 天津大学青岛海洋技术研究院   IPC: H04N5/378 Abstract: 一种快速的DVS图像传感器列信号的读出方法,像素阵列触发之后,即产生一次“事件流”,将行请求信号送入行仲裁器进行仲裁处理;当行仲裁器选中其中某一行时,“选址读数”模块迅速判断出该行产生事件的像素位置,随后该行中的事件信息依次通过列总线传输到片外;如果这时全部触发行都已完成传输,则此次“事件流”传输结束;否则继续循环上述过程直至全部触发行完成列事件传输;该方法无需使用列仲裁器进行列信号仲裁,而是采用“选址读数”的方法进行列信号传输。该方法可以消除列信号的仲裁延时,提升DVS图像传感器在高事件率条件下的工作速度。
15
CN109361883B
像素读出电路及图像传感器
Grant
Publication/Patent Number: CN109361883B Publication Date: 2021-04-02 Application Number: 201811462074.1 Filing Date: 2018-11-30 Inventor: 徐新楠   Assignee: 锐芯微电子股份有限公司   IPC: H04N5/378 Abstract: 一种像素读出电路及图像传感器,像素读出电路包括:至少一个噪声反相放大电路,分别输出补偿电压,在像素单元由于光电效应引起像素电压变化时,补偿电压的变化电压为位线噪声电压的反相电压,且补偿电压的变化电压的电压值为位线噪声电压的电压值的K倍;列模数转换器,包括:反相电容,反相电容的第一端接入补偿电压;比较器,其负输入端耦接反相电容的第二端;电流源,其第一端接地,其第二端作为像素读出电路的输入端;采样电容,其第一端耦接电流源,其第二端耦接比较器的负输入端,其电容值为反相电容的电容值的K倍。本发明技术方案能够消除像素电源噪声,从而降低行噪声,提高图像传感器的图像质量。
16
CN109218638B
像素读出电路及驱动方法、X射线探测器
Grant
Publication/Patent Number: CN109218638B Publication Date: 2021-04-02 Application Number: 201710525841.8 Filing Date: 2017-06-30 Inventor: 刘晓惠   马占洁   Assignee: 京东方科技集团股份有限公司   IPC: H04N5/378 Abstract: 本发明的实施例提供一种像素读出电路及驱动方法、X射线像素电路、X射线探测器,涉及显示技术领域,可简化像素读出电路的结构,节省成本。像素读出电路包括:复位模块,连接信号生成模块的第一端、初始信号端、以及第一信号端,用于对信号生成模块进行初始化;信号生成模块的第一端连接信号放大晶体管的栅极,第二端连接第二信号端;用于在光照条件下产生并存储电荷;信号放大晶体管的第一极连接第三信号端,第二极连接开关模块;用于产生阈值电压的漂移;或者,用于并放大信号生成模块产生的电荷;开关模块,还连接扫描信号端、以及信号读取端,用于将经信号放大晶体管放大后的电荷传输至信号读取端。
17
CN112770067A
CMOS图像传感器读出电路及其实现方法
Public
Publication/Patent Number: CN112770067A Publication Date: 2021-05-07 Application Number: 201911061216.8 Filing Date: 2019-11-01 Inventor: 李杰   Assignee: 格科微电子(上海)有限公司   IPC: H04N5/374 Abstract: 本发明提供一种CMOS图像传感器读出电路及其实现方法,本发明的CMOS图像传感器中相邻多个像素单元为子像素单元矩阵,子像素单元矩阵具有两套读出电路系统,当环境状态为第一状态时,将子像素单元矩阵合并等效为1个像素单元通过第一套读出电路系统读出,实现电荷/电压转换增益大于等于120μV/e‑;当环境状态为第二状态时,将子像素单元矩阵的多个像素单元分别独自通过第二套读出电路系统读出,实现电荷/电压转换增益小于等于100μV/e‑。本发明的CMOS图像传感器读出电路及其实现方法,可以根据环境状态灵活调整读出电路的实现方式,满足不同应用场景的不同需求,改善成像质量,提高图像传感器的整体性能。
18
US2021134858A1
IMAGE PICKUP ELEMENT, METHOD OF MANUFACTURING IMAGE PICKUP ELEMENT, AND ELECTRONIC APPARATUS
Publication/Patent Number: US2021134858A1 Publication Date: 2021-05-06 Application Number: 17/145,488 Filing Date: 2021-01-11 Inventor: Manda, Shuji   Hiyama, Susumu   Shiga, Yasuyuki   Assignee: Sony Corporation   IPC: H01L27/146 Abstract: An image pickup element includes: a semiconductor substrate including a photoelectric conversion section for each pixel; a pixel separation groove provided in the semiconductor substrate; and a fixed charge film provided on a light-receiving surface side of the semiconductor substrate, wherein the fixed charge film includes a first insulating film and a second insulating film, the first insulating film being provided contiguously from the light-receiving surface to a wall surface and a bottom surface of the pixel separation groove, and the second insulating film being provided on a part of the first insulating film, the part corresponding to at least the light-receiving surface.
19
CN112291490A
成像系统及生成具有降低的暗电流噪声的图像信号的方法
Public
Publication/Patent Number: CN112291490A Publication Date: 2021-01-29 Application Number: 202010689969.X Filing Date: 2020-07-17 Inventor: 吴敏硕   T·格蒂斯   R·s·约翰森   沈锴   Assignee: 半导体元件工业有限责任公司   IPC: H04N5/361 Abstract: 本发明公开了成像系统及生成具有降低的暗电流噪声的图像信号的方法,该成像系统可包括图像像素阵列。耦接到像素阵列的控制电路可被配置为在溢出操作模式下操作图像像素,其中每个像素从单个曝光时间周期生成溢出图像信号和完整图像信号。来自像素的溢出图像信号和完整图像信号可用于生成高动态范围图像。在每个像素中的浮动扩散区未使用时,控制电路可控制像素以在浮动扩散区处生成指示像素特定的暗信号噪声的参考信号。处理电路可通过使用参考信号校正完整图像信号以移除完整图像信号中的暗信号噪声来减轻跨像素的暗信号非均匀性。
20
CN112422857A
图像传感器的数据传输电路、成像系统及数据传输的方法
Public
Publication/Patent Number: CN112422857A Publication Date: 2021-02-26 Application Number: 202010743544.2 Filing Date: 2020-07-29 Inventor: 蔡肇芳   张俊祥   王泽健   Assignee: 豪威科技股份有限公司   IPC: H04N5/378 Abstract: 本文中公开图像传感器的数据传输电路、成像系统及数据传输的方法。实例数据传输电路可包含:多个传输库,与耦合到功能逻辑的多个传输库中的第一个串联耦合,其中多个传输库中的每一个经耦合以响应于时钟信号而将图像数据提供到在朝着功能逻辑的方向上的后一传输库;串联耦合的多个延迟,其中多个延迟中的每一个与多个传输库中的相应传输库相关联且耦合到相应传输库,且其中时钟信号在相对于功能逻辑以多个延迟中的相应数目的延迟进行延迟之后由多个传输库中的每一个接收。
Total 500 pages