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    Image sensor pixel structure with optimized uniformity
    31.
    发明授权
    Image sensor pixel structure with optimized uniformity 有权

    公开(公告)号：US09659982B2

    公开(公告)日：2017-05-23

    申请号：US14664614

    申请日：2015-03-20

    Applicant: CISTA SYSTEM CORP.

    Inventor： Guangbin Zhang

    IPC: H01L27/146

    CPC classification number: H01L27/14605 ,  H01L27/14621 ,  H01L27/14641 ,  H01L27/14645

    Abstract: An image sensor includes at least a first row and a second row of photodiodes, each photodiode being coupled with an associated transistor, each associated transistor including a gate, the first and second row of photodiodes forming a series of 2×2 Bayer-pattern units. In each Bayer-pattern unit, a first photodiode and a second photodiode in the first row are designated respectively as a first green pixel and a blue pixel, and a third photodiode and a fourth photodiode in the second row are designated respectively as a red pixel and a second green pixel, wherein a position of the gate of the transistor associated with the first photodiode relative to the first photodiode and a position of the gate of the transistor associated with the fourth photodiode relative to the fourth photodiode are the same.

    Method and system for generating a ramping signal
    32.
    发明授权
    Method and system for generating a ramping signal 有权
    用于产生斜坡信号的方法和系统

    公开(公告)号：US09584102B2

    公开(公告)日：2017-02-28

    申请号：US14560371

    申请日：2014-12-04

    Applicant: CISTA SYSTEM CORP.

    Inventor： Dennis Tunglin Lee ,  Guangbin Zhang

    IPC: H03K4/02 ,  H04N5/378 ,  H03K4/08 ,  H03K4/12 ,  H03K4/26

    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.

    Abstract translation: 提供了一种用于产生斜坡信号的系统。 该系统包括多个存储电路，每个存储电路包括输入和输出。 先前存储电路的输出连接到下一个存储电路的输入端。 存储电路被配置为基于第一控制信号传播第一使能信号。 该系统还包括多个第一电流产生电路。 每个第一电流产生电路耦合到相应的存储电路的输出，以接收传播的第一使能信号。 第一电流产生电路被配置为基于传播的第一使能信号产生第一电流信号。

    Image sensor with image receiver and automatic image switching
    33.
    发明授权
    Image sensor with image receiver and automatic image switching 有权

    公开(公告)号：US12119357B2

    公开(公告)日：2024-10-15

    申请号：US18383399

    申请日：2023-10-24

    Applicant: CISTA SYSTEM CORP.

    Inventor： Zhaojian Li ,  Jiangtao Pang

    IPC: H01L27/146 ,  H01L27/148

    CPC classification number: H01L27/14605 ,  H01L27/14806

    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.

    QUAD-PIXEL IMAGE SENSOR IMBALANCE CORRECTION
    34.
    发明公开
    QUAD-PIXEL IMAGE SENSOR IMBALANCE CORRECTION 审中-公开

    公开(公告)号：US20240303963A1

    公开(公告)日：2024-09-12

    申请号：US18118632

    申请日：2023-03-07

    Applicant: CISTA SYSTEM CORP.

    Inventor： Shenglong YANG ,  Zhaojian LI

    IPC: G06V10/75 ,  G06T7/40 ,  G06V10/60 ,  G06V10/74 ,  H04N25/46

    CPC classification number: G06V10/751 ,  G06T7/40 ,  G06V10/60 ,  G06V10/761 ,  H04N25/46 ,  G06T2207/10024

    Abstract: This application describes methods and systems for imbalance correction in quad image sensors. An exemplary method includes performing pixel value compensation at both inter-quaternion level and intra-quaternion level within a single pipeline. For example, the method may include obtaining an image captured by a quad image sensor and parameters of quaternions in the quad image sensor; computing a quad-pixel value bin and a standard deviation for each quaternion; performing inter-quad compensation among different quaternions using a cross-mean computed based on the plurality of pixel value bins and the plurality of standard deviations; computing texture weights for the plurality of quaternions based on the quad-pixel value bins; and performing intra-quad compensation among pixels within the quaternion based on the cross-mean and corresponding texture weight.

    ADAPTIVE AUTO WHITE BALANCING
    35.
    发明公开
    ADAPTIVE AUTO WHITE BALANCING 审中-公开

    公开(公告)号：US20240087128A1

    公开(公告)日：2024-03-14

    申请号：US17940891

    申请日：2022-09-08

    Applicant: CISTA SYSTEM CORP.

    Inventor： Yang-Ting CHOU ,  Zhaojian LI

    IPC: G06T7/11 ,  G06T3/40 ,  G06T5/20 ,  G06T7/90

    CPC classification number: G06T7/11 ,  G06T3/4015 ,  G06T5/20 ,  G06T7/90

    Abstract: This application describes systems and methods for detecting depth in deep trench isolation with semiconductor devices using test key transistors. An method comprises: capturing, by an image sensor, an image; generating a plurality of chrominance channels by converting the image into luminance-chrominance space; performing homogeneous region segmentation on the plurality of chrominance channels to generate one or more regions of interest in the plurality of chrominance channels; and projecting the regions of interest onto eigen-illuminant images to determine gray color pixels on the image, wherein the eigen-illuminant images are generated via performing a machine learning algorithm on a training set of images captured by the image sensor.

    IMAGE SENSOR WITH IMAGE RECEIVER AND AUTOMATIC IMAGE COMBINING
    36.
    发明公开
    IMAGE SENSOR WITH IMAGE RECEIVER AND AUTOMATIC IMAGE COMBINING 审中-公开

    公开(公告)号：US20230353847A1

    公开(公告)日：2023-11-02

    申请号：US18220460

    申请日：2023-07-11

    Applicant: CISTA SYSTEM CORP.

    Inventor： Zhaojian LI ,  Jiangtao PANG

    IPC: H04N23/45 ,  H04N5/265 ,  H04N13/106 ,  H04N23/741

    CPC classification number: H04N23/45 ,  H04N5/265 ,  H04N13/158 ,  H04N23/741

    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.

    IMAGE SENSOR WITH IMAGE RECEIVER AND AUTOMATIC IMAGE COMBINING
    38.
    发明申请
    IMAGE SENSOR WITH IMAGE RECEIVER AND AUTOMATIC IMAGE COMBINING 有权

    公开(公告)号：US20220294952A1

    公开(公告)日：2022-09-15

    申请号：US17825524

    申请日：2022-05-26

    Applicant: CISTA SYSTEM CORP.

    Inventor： Zhaojian LI ,  Jiangtao PANG

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

    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.

    Image sensor with image receiver and automatic image combining
    39.
    发明授权
    Image sensor with image receiver and automatic image combining 有权

    公开(公告)号：US11032460B2

    公开(公告)日：2021-06-08

    申请号：US16251272

    申请日：2019-01-18

    Applicant: CISTA SYSTEM CORP.

    Inventor： Zhaojian Li ,  Jiangtao Pang

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

    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.

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