公开(公告)号：US20240380994A1

公开(公告)日：2024-11-14

申请号：US18195208

申请日：2023-05-09

Applicant: CISTA SYSTEM CORP.

Inventor： Yang-Ting CHOU ,  Zhaojian LI

IPC: H04N25/57 ,  G06T5/00 ,  G06T5/10 ,  G06T5/50 ,  H04N25/11 ,  H04N25/62

Abstract: This application describes method and apparatus for HDR+ using M×N-cell sensors. An example apparatus includes a plurality of pixel groups, each pixel group having M×N pixels configured with color filters of a same color such that the M×N pixels in each pixel group capture a same color. M and N are integers greater than one, and each pixel is represented by a first number of bits. The example apparatus further include one or more processors configured to: capture, through the plurality of pixel groups, a plurality of frames of a scene using a short-exposure setting; merge the plurality of frames into an HDR image; and perform tone mapping on the HDR image to reduce a dynamic range of the super-pixels of the HDR image into a low dynamic range (LDR) image, wherein each pixel in the LDR image is represented with the first number of bits

公开(公告)号：US20230125424A1

公开(公告)日：2023-04-27

申请号：US18086074

申请日：2022-12-21

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian LI ,  Jiangtao PANG

IPC: H01L27/146 ,  H01L27/148

Abstract: Provided are an image sensor with one or more image receivers for image switching, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image selection circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and select one of the first image data and the second image data according to one or more image selection criteria and at least one of the first image data and the second image data; and a transmitter coupled to the image selection circuit to transmit the selected one of the first image data and the second image data from the image sensor.

公开(公告)号：US11569276B2

公开(公告)日：2023-01-31

申请号：US17679495

申请日：2022-02-24

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian Li ,  Jiangtao Pang

IPC: H01L27/146 ,  H01L27/148

Abstract: Provided are an image sensor with one or more image receivers for image switching, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image selection circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and select one of the first image data and the second image data according to one or more image selection criteria and at least one of the first image data and the second image data; and a transmitter coupled to the image selection circuit to transmit the selected one of the first image data and the second image data from the image sensor.

公开(公告)号：US20220181367A1

公开(公告)日：2022-06-09

申请号：US17679495

申请日：2022-02-24

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian LI ,  Jiangtao PANG

IPC: H01L27/146 ,  H01L27/148

Abstract: Provided are an image sensor with one or more image receivers for image switching, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image selection circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and select one of the first image data and the second image data according to one or more image selection criteria and at least one of the first image data and the second image data; and a transmitter coupled to the image selection circuit to transmit the selected one of the first image data and the second image data from the image sensor.

公开(公告)号：US10892287B2

公开(公告)日：2021-01-12

申请号：US16251239

申请日：2019-01-18

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian Li ,  Jiangtao Pang

IPC: H01L27/146 ,  H01L27/148

Abstract: Provided are an image sensor with one or more image receivers for image switching, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image selection circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and select one of the first image data and the second image data according to one or more image selection criteria and at least one of the first image data and the second image data; and a transmitter coupled to the image selection circuit to transmit the selected one of the first image data and the second image data from the image sensor.

公开(公告)号：US10741602B2

公开(公告)日：2020-08-11

申请号：US15833553

申请日：2017-12-06

Applicant: CISTA SYSTEM CORP.

Inventor： Hirofumi Komori ,  Jingyi Bai

IPC: H01L27/146

Abstract: An image sensor including at least one pixel for collecting charge in its photodiode is provided. The image sensor comprises: a substrate having a first surface on a front side and a second surface on a back side, a photodetector formed in the silicon substrate and having a light-receiving surface on the second surface, and a first layer with positive charges disposed on the second surface, the first layer being configured to form an electron accumulation region at the light-receiving surface of the photodetector for suppressing a dark current at a back side interface of the image sensor. A method for fabricating an image sensor including a first layer with positive charges is also provided.

公开(公告)号：US20200236264A1

公开(公告)日：2020-07-23

申请号：US16251272

申请日：2019-01-18

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian LI ,  Jiangtao PANG

IPC: H04N5/225 ,  H04N5/235 ,  H04N13/106 ,  H04N5/265

Abstract: Provided are an image sensor with one or more image receivers for image combining, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image combination circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and combine the first image data and the second image data into combined image data for a single combined image, according to one or more image combination criteria, and at least one of the first image data and the second image data; and a transmitter coupled to the image combination circuit to transmit the combined image data for the combined image from the image sensor.

公开(公告)号：US20200235147A1

公开(公告)日：2020-07-23

申请号：US16251239

申请日：2019-01-18

Applicant: CISTA SYSTEM CORP.

Inventor： Zhaojian LI ,  Jiangtao PANG

IPC: H01L27/146 ,  H01L27/148

Abstract: Provided are an image sensor with one or more image receivers for image switching, and an imaging system and method therefor. The image sensor includes an image sensor array to generate first image data for a first image; a receiver to receive, into the image sensor, second image data for a second image; an image selection circuit coupled to the image sensor array and the receiver to receive the first image data and the second image data and select one of the first image data and the second image data according to one or more image selection criteria and at least one of the first image data and the second image data; and a transmitter coupled to the image selection circuit to transmit the selected one of the first image data and the second image data from the image sensor.

公开(公告)号：US20180131888A1

公开(公告)日：2018-05-10

申请号：US15865326

申请日：2018-01-09

Applicant: CISTA SYSTEM CORP.

Inventor： Dennis Tunglin LEE ,  Guangbin ZHANG

IPC: H04N5/376 ,  H04N5/378 ,  H03K4/48 ,  H03K4/08 ,  H03K4/02 ,  H03K4/26 ,  H03K4/12 ,  H04N5/365

CPC classification number: H04N5/3765 ,  H03K4/02 ,  H03K4/08 ,  H03K4/12 ,  H03K4/26 ,  H03K4/48 ,  H04N5/3655 ,  H04N5/3658 ,  H04N5/378

Abstract: A system is provided for generating a ramping signal. The system includes a plurality of storage circuits each including an input and an output. The output of a previous storage circuit is connected to the input of a next storage circuit. The storage circuits are configured to propagate a first enable signal based on a first control signal. The system also includes a plurality of first current generating circuits. Each first current generating circuit is coupled to the output of a corresponding storage circuit to receive the propagated first enable signal. The first current generating circuits are configured to generate a first current signal based on the propagated first enable signal.

公开(公告)号：US20180097025A1

公开(公告)日：2018-04-05

申请号：US15833553

申请日：2017-12-06

Applicant: CISTA SYSTEM CORP.

Inventor： Hirofumi Komori ,  Jingyi Bai

IPC: H01L27/146

CPC classification number: H01L27/1464 ,  H01L27/1461 ,  H01L27/14612 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/1463 ,  H01L27/14636 ,  H01L27/14643 ,  H01L27/14647 ,  H01L27/14685 ,  H01L27/14687 ,  H01L27/14689

Abstract: An image sensor including at least one pixel for collecting charge in its photodiode is provided. The image sensor comprises: a substrate having a first surface on a front side and a second surface on a back side, a photodetector formed in the silicon substrate and having a light-receiving surface on the second surface, and a first layer with positive charges disposed on the second surface, the first layer being configured to form an electron accumulation region at the light-receiving surface of the photodetector for suppressing a dark current at a back side interface of the image sensor. A method for fabricating an image sensor including a first layer with positive charges is also provided.