公开(公告)号：US20190170864A1

公开(公告)日：2019-06-06

申请号：US15878392

申请日：2018-01-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG

IPC: G01S7/486 ,  G01S17/10 ,  G01S17/89

Abstract: A time-resolving sensor includes a single-photon avalanche diode (SPAD), a logic circuit and differential time-to-charge converter (DTCC) circuit. The SPAD is responsive to a shutter signal to generate an output signal based on detecting an incident photon. The logic circuit generates first and second enable signals. The DTCC includes a capacitor device, first and second switching devices, and an output circuit. The first switching device is responsive to the first enable signal to transfer a charge on the capacitor device to the first floating diffusion. The second switching device is responsive to the second enable signal to transfer a remaining charge on the capacitor device to the second floating diffusion. The output circuit outputs a first voltage that is based on the first charge on the first floating diffusion and a second voltage that is based on the second charge on the second floating diffusion.

公开(公告)号：US20170026590A1

公开(公告)日：2017-01-26

申请号：US15284532

申请日：2016-10-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Dong-Ki MIN ,  Ilia OVSIANNIKOV ,  Yoon-Dong PARK

IPC: H04N5/341 ,  H04N5/376 ,  G01S17/89 ,  H04N9/04 ,  H04N5/225 ,  G01S7/481 ,  H04N13/02 ,  H04N5/369

CPC classification number: H04N5/341 ,  G01S7/4816 ,  G01S17/89 ,  H04N5/2256 ,  H04N5/3532 ,  H04N5/3696 ,  H04N5/3765 ,  H04N9/045 ,  H04N13/271

Abstract: A pixel array includes color pixels that have a layout, and depth pixels having a layout that starts from the layout of the color pixels. Photodiodes of adjacent depth pixels can be joined to form larger depth pixels, while still efficiently exploiting the layout of the color pixels. Moreover, some embodiments are constructed so as to enable freeze-frame shutter operation of the pixel array.

Abstract translation: 像素阵列包括具有布局的彩色像素，以及具有从彩色像素的布局开始的布局的深度像素。 相邻深度像素的光电二极管可以被连接以形成更大的深度像素，同时仍然有效地利用彩色像素的布局。 此外，一些实施例被构造成使得能够进行像素阵列的冻结帧快门操作。

公开(公告)号：US20140183338A1

公开(公告)日：2014-07-03

申请号：US14140824

申请日：2013-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eric R. FOSSUM ,  Yibing Michelle WANG ,  Tae-Yon LEE ,  Yoon-Dong PARK

IPC: H04N5/341

CPC classification number: H04N5/3745 ,  G01S7/4914 ,  G01S17/89

Abstract: A depth pixel includes a photo detection unit, an ambient light removal current source, a driving transistor and a select transistor. The photo detection unit is configured to generate a light current based on a received light reflected from a subject, the received light including an ambient light component. The ambient light removal current source configured to generate a compensation current indicating the ambient light component in response to a power supply and at least one compensation control signal. The driving transistor is configured to amplify an effective voltage corresponding to the light current and the compensation current. The select transistor configured to output the amplified effective voltage in response to a selection signal, the amplified effective voltage indicating a depth of the subject.

Abstract translation: 深度像素包括光检测单元，环境光去除电流源，驱动晶体管和选择晶体管。 光检测单元被配置为基于从被摄体反射的接收光产生光电流，所接收的光包括环境光分量。 环境光去除电流源被配置为响应于电源产生指示环境光分量的补偿电流和至少一个补偿控制信号。 驱动晶体管被配置为放大对应于光电流和补偿电流的有效电压。 所述选择晶体管被配置为响应于选择信号输出放大的有效电压，所述放大的有效电压指示所述对象的深度。

公开(公告)号：US20250004290A1

公开(公告)日：2025-01-02

申请号：US18887025

申请日：2024-09-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Radwanul Hasan SIDDIQUE

IPC: G02B27/10 ,  G02B1/00 ,  G02B3/10 ,  G02B3/14 ,  G02B27/00 ,  G02C7/06

Abstract: A metalens includes one or more regions of nanostructures. A first region of nanostructures directs a first field of view (FOV) of light incident on the first region of nanostructures to a first region of an image plane. A second region of nanostructures directs a second FOV of light incident on the second region of nanostructures to a second region of the image plane in which the second FOV is different from the first FOV, and the second region of the image plane is different from the first region of the image plane. A third region of nanostructures directs a third FOV of light to a third region of the image plane, in which the third FOV is different from the first FOV and the second FOV, and the third region of the image plane is different from the first region and the second region of the image plane.

公开(公告)号：US20220137226A1

公开(公告)日：2022-05-05

申请号：US17578232

申请日：2022-01-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Radwanul Hasan SIDDIQUE ,  Lilong SHI ,  Chunji WANG

IPC: G01S17/894 ,  G06T7/55 ,  G06T7/521 ,  H04N13/156 ,  H04N13/254 ,  H04N5/369 ,  G06T7/20 ,  G06V20/64

Abstract: Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.

公开(公告)号：US20220078318A1

公开(公告)日：2022-03-10

申请号：US17527155

申请日：2021-11-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Radwanul Hasan SIDDIQUE ,  Kwang Oh KIM

IPC: H04N5/225 ,  H04N5/232

Abstract: A camera system includes two or more sensor arrays and an optical path. The sensor arrays are on the same sensor chip. Each sensor array includes the same field of view (FOV) as each other sensor array. The optical path includes a main lens and a metalens that are shared by each sensor array, and a microlens associated with each sensor array. The metalens splits incident light into different spectrums of light and directs each respective spectrum to a corresponding sensor array. The different spectrums of light include at least two of visible light, near infrared light, shortwave infrared and longwave infrared, and at least one sensor array includes single-photon avalanche diodes. The image processor that provides image processing, object recognition and object tracking and/or image fusion functionality may be on the same sensor chip as the sensor arrays.

公开(公告)号：US20210372856A1

公开(公告)日：2021-12-02

申请号：US16937572

申请日：2020-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Radwanul Hasan SIDDIQUE

IPC: G01J5/22 ,  H01L27/146

Abstract: A pixel for an image sensor includes a resistive microbolometer sensor portion, a visible image sensor portion, and an output path. The resistive microbolometer sensor portion outputs a signal corresponding to an infrared (IR) image sensed by the resistive microbolometer sensor portion. The resistive microbolometer sensor portion uses no bias current. The visible image sensor portion outputs a signal corresponding to a visible image sensed by the visible image sensor portion. The output path is shared by the resistive microbolometer sensor portion and the visible image sensor portion, and may be controlled to selectively output the signal corresponding to the IR image, the signal corresponding to the visible image, or a fused image based on the IR image and the visible image. The resistive microbolometer sensor portion may sense a near infrared image or a longwave infrared image.

公开(公告)号：US20210262784A1

公开(公告)日：2021-08-26

申请号：US17316701

申请日：2021-05-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Kwang Oh KIM

IPC: G01B11/22 ,  H04N5/225 ,  H04N5/232 ,  G06T7/521 ,  G03B15/02 ,  G01B11/25

Abstract: An imaging unit includes a light source and a pixel array. The light source projects a line of light that is scanned in a first direction across a field of view of the light source. The line of light oriented in a second direction that is substantially perpendicular to the first direction. The pixel array is arranged in at least one row of pixels that extends in a direction that is substantially parallel to the second direction. At least one pixel in a row is capable of generating two-dimensional color information of an object in the field of view based on a first light reflected from the object and is capable of generating three-dimensional (3D) depth information of the object based on the line of light reflecting from the object. The 3D-depth information includes time-of-flight information.

公开(公告)号：US20210041225A1

公开(公告)日：2021-02-11

申请号：US17076790

申请日：2020-10-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG

IPC: G01B11/22 ,  H04N5/225 ,  H04N5/232 ,  G06T7/521 ,  G01B11/25 ,  G03B15/02

Abstract: Using the same image sensor to capture both a two-dimensional (2D) image of a three-dimensional (3D) object and 3D depth measurements for the object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor generates a multi-bit output in the 2D mode and a binary output in the 3D mode to generate timestamps. Strong ambient light is rejected by switching the image sensor to a 3D logarithmic mode from a 3D linear mode.

公开(公告)号：US20200303437A1

公开(公告)日：2020-09-24

申请号：US16409767

申请日：2019-05-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Lilong SHI ,  Kwang Oh KIM ,  Chunji WANG

IPC: H01L27/146 ,  G01S17/10

Abstract: A pixel of an image sensor includes a pinned photodiode (PPD), a switching device and an output circuit. A first terminal of the switching device is coupled to the PPD. A second terminal of the switching device is coupled to a floating diffusion (FD). A third terminal of the switching device is coupled to a first enable signal and a second enable signal. The switching device is responsive to the first enable signal to transfer a first charge on the PPD to the FD, and responsive to the second enable signal to transfer a second charge on the PPD to the FD. The output circuit outputs a first voltage based on the first charge and outputs a second voltage based on the second charge in which the first voltage corresponds to a time of flight of one or more detected photons and the second voltage corresponds to a greyscale image.