公开(公告)号：US20150302710A1

公开(公告)日：2015-10-22

申请号：US14583836

申请日：2014-12-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jong JIN ,  Yun-Hong Kim ,  Tae-Chan Kim

IPC: G08B13/196 ,  H04N7/18

CPC classification number: G06F3/017 ,  H01L27/14603 ,  H04N5/3696

Abstract: A dynamic vision sensor includes a sensing pixel array including a plurality of sensing pixels each detecting a change of light intensity to output an event by a unit of time-stamp and a control unit that controls the sensing pixel array. Here, each of the sensing pixels has an inclined N-polygon shape, where N is an even number greater than or equal to 4. In addition, each of the sensing pixels includes first sides extended in a first direction that stand opposite to each other in a second direction in a staggered form and second sides extended in the second direction that stand opposite to each other in the first direction in a staggered form, where the first direction is perpendicular to the second direction.

Abstract translation: 动态视觉传感器包括感测像素阵列，其包括多个感测像素，每个检测像素检测光强度的变化以通过时间戳单位输出事件;以及控制单元，其控制感测像素阵列。 这里，每个感测像素具有倾斜的N多边形形状，其中N是大于或等于4的偶数。另外，每个感测像素包括在彼此相对的第一方向上延伸的第一侧 在第二方向上以交错的形式延伸，第二侧沿第二方向延伸，第二方向在第一方向上以交错的形式彼此相对，其中第一方向垂直于第二方向。

公开(公告)号：US09769408B2

公开(公告)日：2017-09-19

申请号：US14536968

申请日：2014-11-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yun-Hong Kim ,  Min-Jin Kong ,  Tae-Chan Kim

IPC: H04N5/378 ,  H04N5/357

CPC classification number: H04N5/378 ,  H04N5/3575

Abstract: An apparatus for controlling a pixel output level includes a column signal line connected to an output node of at least one pixel sensor. The apparatus includes a load circuit is connected between the column signal line and a ground terminal. The apparatus also includes a level adjusting circuit configured to adjust a voltage level of a pixel signal output from the at least one pixel sensor to the column signal line based on a correction target value.

公开(公告)号：US09500521B2

公开(公告)日：2016-11-22

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: G01J1/46 ,  G01J1/42 ,  G06F1/32

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：US10455227B2

公开(公告)日：2019-10-22

申请号：US15834296

申请日：2017-12-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yun-Hong Kim ,  Hyeok-Jong Lee ,  Hee-Sung Chae

IPC: H04N17/00 ,  H04N5/3745 ,  H04N5/357 ,  H04N5/343 ,  H04N5/378

Abstract: An image sensor includes a pixel array including a plurality of pixels, an analog-to-digital converter having a first counter for converting an analog signal into a digital signal, and an output buffer having a first memory. A first counter test result value generated as a test result for the first counter is stored in the first memory in a test mode. The output buffer outputs the first counter test result value from the first memory to an outside of the output buffer in response to a first selection signal. The output buffer further includes a reset logic circuit for resetting the first memory depending on whether the first counter test result value is output or not. The plurality of pixels generate the analog signal in response to incident light.

公开(公告)号：US20180324416A1

公开(公告)日：2018-11-08

申请号：US15834296

申请日：2017-12-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yun-Hong Kim ,  Hyeok-Jong Lee ,  Hee-Sung Chae

IPC: H04N17/00 ,  H04N5/3745 ,  H04N5/378 ,  H04N5/343 ,  H04N5/357

CPC classification number: H04N17/002 ,  H04N5/343 ,  H04N5/3575 ,  H04N5/37455 ,  H04N5/378

Abstract: An image sensor includes a pixel array including a plurality of pixels, an analog-to-digital converter having a first counter for converting an analog signal into a digital signal, and an output buffer having a first memory. A first counter test result value generated as a test result for the first counter is stored in the first memory in a test mode. The output buffer outputs the first counter test result value from the first memory to an outside of the output buffer in response to a first selection signal. The output buffer further includes a reset logic circuit for resetting the first memory depending on whether the first counter test result value is output or not. The plurality of pixels generate the analog signal in response to incident light.