公开(公告)号：US11067673B2

公开(公告)日：2021-07-20

申请号：US15981926

申请日：2018-05-17

Applicant: CMOS Sensor, Inc.

Inventor： Hui Wei

IPC: G01S7/48 ,  G01S7/4863 ,  G01S17/10 ,  H01L27/146 ,  H01L25/16 ,  G01S17/894

Abstract: Techniques of designing an image sensor particularly useful in lidar applications are described. According to one aspect of the present invention, an image sensor is designed to take advantage of the architecture of CMOS sensor with correlated double sampling, or CDS, to avoid the sensing speed being halved in order to cancel background light interference. It is commonly known that a photosensor is read twice (i.e., first and second readouts) in CDS for removing the inherent noises from the photosensor itself. Instead of subtracting a pixel's dark or reference output level from an actual light-induced signal, a background image is managed to be captured before the second readout of the sensor and subtracted from an actual image, where the actual image is defined to include an target. As a result, the readout speed of an image sensor is maintained while the background light interference is removed.

公开(公告)号：US20210072396A1

公开(公告)日：2021-03-11

申请号：US16950915

申请日：2020-11-18

Applicant: CMOS Sensor, Inc.

Inventor： Weng Lyang Wang ,  Hui Wei

IPC: G01S17/894 ,  G01S17/10 ,  H04N13/257 ,  H04N5/378

Abstract: Techniques of designing a sensing system for pseudo 3D mapping in robotic applications are described. According to one aspect of the present invention, an image system is designed to include at least two linear sensors, where these two linear sensors are positioned or disposed orthogonally. In one embodiment, the two linear sensors are a horizontal sensor and a vertical sensor. The horizontal sensor is used for the lidar application while the vertical sensor is provided to take videos, namely scanning the environment wherever the horizontal sensor misses. As a result, the videos can be analyzed to detect anything below or above a blind height in conjunction with the detected distance by the lidar.

公开(公告)号：US20030076552A1

公开(公告)日：2003-04-24

申请号：US10277350

申请日：2002-10-22

Applicant: CMOS Sensor Inc.

Inventor： Kevin Lo ,  Yu Lung Fang

IPC: H04N001/031

CPC classification number: H04N1/0313 ,  H04N1/0315 ,  H04N1/0318 ,  H04N2201/02456 ,  H04N2201/02468 ,  H04N2201/02481 ,  H04N2201/02495 ,  H04N2201/03112 ,  H04N2201/03125 ,  H04N2201/03133 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/03179

Abstract: A contact image sensor (CIS) for scanning a document is disclosed. The CIS includes a housing having an opening, a first slide and a second slide, a light guide installed on the housing through the opening and the first slide for scanning the document and generating a reflective image, a rod lens installed on the housing through the opening and the second slide for receiving the reflective image and generating a focused image, a PCB installed on the housing and having a sensing array for transforming the focused image into an image signal, and a spring cover fixed on the opening for fixing the light guide and the rod lens in the housing to form the CIS.

Abstract translation: 公开了一种用于扫描文件的接触式图像传感器（CIS）。 CIS包括具有开口的壳体，第一滑动件和第二滑动件，通过开口安装在壳体上的光导和用于扫描文件并产生反射图像的第一滑块，通过所述壳体安装在所述壳体上的杆状透镜 用于接收反射图像并产生聚焦图像的第二滑块，安装在壳体上的PCB并具有用于将聚焦图像变换为图像信号的感测阵列，以及固定在开口上用于固定光导的弹簧盖 并将壳体中的棒状透镜形成CIS。