公开(公告)号：US20140374572A1

公开(公告)日：2014-12-25

申请号：US14231859

申请日：2014-04-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-Chan KIM ,  Moo-Young KIM

IPC: H04N5/369

CPC classification number: H04N5/3745

Abstract: A unit pixel of an image sensor includes a photoelectric conversion unit, a mode control unit, a first signal generation unit and a second signal generation unit. The photoelectric conversion unit generates photo-charges in response to incident light and provides the photo-charges to a first node. The mode control unit prevents the photo-charges from being discharged from the first node in a first operation mode, and generates a sensing current by discharging the photo-charges and generates a sensing voltage proportional to the sensing current in a second operation mode. The first signal generation unit generates an analog signal based on an amount of the photo-charges accumulated in the first node in the first operation mode. The second signal generation unit generates an on signal and an off signal based on a change of the sensing voltage in the second operation mode. The unit pixel provides various sensing outputs effectively.

Abstract translation: 图像传感器的单位像素包括光电转换单元，模式控制单元，第一信号生成单元和第二信号生成单元。 光电转换单元响应于入射光产生光电荷并将光电荷提供给第一节点。 模式控制单元防止在第一操作模式中光电荷从第一节点放电，并且通过放电光电荷产生感测电流，并在第二操作模式中产生与感测电流成比例的感测电压。 第一信号生成单元基于在第一操作模式中累积在第一节点中的光电荷的量来生成模拟信号。 第二信号产生单元基于第二操作模式中的感测电压的变化产生导通信号和截止信号。 单位像素有效地提供各种感应输出。

公开(公告)号：US20130335602A1

公开(公告)日：2013-12-19

申请号：US13930130

申请日：2013-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Pyeong-Woo LEE ,  Dong-Jae LEE ,  Byung-Joon BAEK ,  Tae-Chan KIM

IPC: H04N5/367

CPC classification number: H04N5/367 ,  H04N9/045

Abstract: A method of processing image signals comprises determining whether each of multiple units of input pixel data received from an image sensor is bad pixel data generated by a bad pixel of the image sensor or normal pixel data generated by a normal pixel of the image sensor, and performing interpolation to generate image data corresponding to the bad pixel using only normal pixel data and omitting bad pixel data.

Abstract translation: 处理图像信号的方法包括确定从图像传感器接收的输入像素数据的多个单位中的每一个是由图像传感器的不良像素生成的不良像素数据还是由图像传感器的法线像素生成的正常像素数据，以及 执行内插以仅使用普通像素数据生成与坏像素相对应的图像数据，并省略不良像素数据。

公开(公告)号：US20150256760A1

公开(公告)日：2015-09-10

申请号：US14250537

申请日：2014-04-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hae-Jin JU ,  Tae-Chan KIM ,  Won-Ho CHO ,  Rae-Hong PARK

IPC: H04N5/243 ,  H04N9/04

CPC classification number: H04N5/243 ,  H04N9/045

Abstract: Methods of correcting saturated pixel data in an image sensor are provided. A method of correcting saturated pixel data in an image sensor includes determining a weight function. The weight function indicates a correlation between color values of saturated pixels and color values of neighboring pixels. The saturated pixels are among a plurality of pixels which have a color value greater than a saturation threshold value. The neighboring pixels are among the plurality of pixels that are proximate to each of the saturated pixels. The method includes determining weight values of a neighboring pixels that are proximate to a first saturated pixel using the weight function. The method includes determining a weighted average value of the color values of each of the neighboring pixels using the weight values. The method includes correcting the color value of the first saturated pixel to the weighted average value.

Abstract translation: 提供了校正图像传感器中的饱和像素数据的方法。 校正图像传感器中的饱和像素数据的方法包括确定权重函数。 权重函数表示饱和像素的颜色值和相邻像素的颜色值之间的相关性。 饱和像素在具有大于饱和阈值的颜色值的多个像素之中。 相邻像素在接近每个饱和像素的多个像素之中。 该方法包括使用权重函数来确定邻近第一饱和像素的相邻像素的权重值。 该方法包括使用权重值来确定每个相邻像素的颜色值的加权平均值。 该方法包括将第一饱和像素的颜色值校正为加权平均值。

公开(公告)号：US20150061501A1

公开(公告)日：2015-03-05

申请号：US14453281

申请日：2014-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yun-Hong KIM ,  Moo-Young KIM ,  Tae-Chan KIM ,  Kwang-Hyun LEE ,  Seok-Yong HONG

IPC: G01J1/42 ,  G01J1/46 ,  H05B37/02 ,  G06F1/16

CPC classification number: G01J1/4204 ,  G01J1/46 ,  G06F1/3265 ,  Y02D10/153

Abstract: An ambient light sensor includes a photoelectric conversion unit, a current control unit, a signal conversion unit and a comparison unit. The photoelectric conversion unit provides a photo current having a magnitude corresponding to illuminance of incident light to a first node. The current control unit generates a control current exponentially proportional to an elapse time based on a clock signal, provides the control current to the first node, and outputs a digital code corresponding to the elapse time in response to a reset signal. The signal conversion unit generates a comparison voltage logarithmically proportional to a sum of the photo current and the control current. The comparison unit generates the reset signal by comparing a magnitude of the comparison voltage and a magnitude of a reference voltage. The ambient light sensor generates the digital code effectively representing illuminance of ambient light that eyes of a human being perceives.

Abstract translation: 环境光传感器包括光电转换单元，电流控制单元，信号转换单元和比较单元。 光电转换单元提供具有对应于入射光的照度的大小的光电流到第一节点。 当前控制单元基于时钟信号产生与经过时间成正比的控制电流，向第一节点提供控制电流，并响应于复位信号输出对应于经过时间的数字码。 信号转换单元产生与光电流和控制电流之和成正比的对比电压。 比较单元通过比较比较电压的大小和参考电压的大小来产生复位信号。 环境光传感器产生有效地表示人的眼睛感知的环境光的照度的数字代码。

公开(公告)号：US20140204258A1

公开(公告)日：2014-07-24

申请号：US14224668

申请日：2014-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byung-Jo KIM ,  Tae-Chan KIM ,  Kyoung Min KOH ,  Kyung-Min KIM

IPC: H04N5/374

CPC classification number: H04N5/374 ,  H04N5/3452 ,  H04N5/3745

Abstract: The image sensor includes a plurality of column lines, a plurality of active road circuits and a selection circuit. The plurality of column lines are each connected to a corresponding one of a plurality of pixels. The plurality of active road circuits are each connected to a corresponding one of the plurality of column lines. The selection circuit is configured to enable a portion of the plurality of active road circuits based on a plurality of column selection signals.

Abstract translation: 图像传感器包括多个列线，多个有源道路电路和选择电路。 多个列线分别连接到多个像素中的对应的一列。 多个主动道路电路各自连接到多条列线中的相应一条。 选择电路被配置为基于多个列选择信号使得多个主动道路电路的一部分能够启用。