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公开(公告)号：US20240340508A1
公开(公告)日：2024-10-10
申请号：US18745803
申请日：2024-06-17
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.
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公开(公告)号：US12096100B2
公开(公告)日：2024-09-17
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.
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公开(公告)号：US20240071846A1
公开(公告)日：2024-02-29
申请号：US17897725
申请日：2022-08-29
Applicant: CISTA SYSTEM CORP.
Inventor： Jingyi BAI , Bo-Ray LEE
IPC: H01L21/66 , G01R31/26 , H01L27/146
CPC classification number: H01L22/34 , G01R31/2621 , H01L27/1463
Abstract: This application describes systems and methods for detecting depth in deep trench isolation with semiconductor devices using test key transistors. An example semiconductor device comprises a test key transistor comprising a source, a drain, a channel connected to the source and the drain, and a gate; and a deep trench isolation encroaching into the channel of the test key transistor, wherein: the test key transistor is associated with a specification including a preset gate voltage, a preset source-drain voltage difference, and a predetermined current, and the test key transistor is configured to generate a current within a threshold difference from the predetermined current in the channel in response to receiving the preset gate voltage at the gate and the preset source-drain voltage difference at the source and the drain, and the deep trench isolation encroaches into the channel at a preset depth.
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公开(公告)号：US20210105429A1
公开(公告)日：2021-04-08
申请号：US17127128
申请日：2020-12-18
Applicant: CISTA SYSTEM CORP.
Inventor： Dennis Tunglin LEE , Guangbin ZHANG
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.
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公开(公告)号：US09876045B2
公开(公告)日：2018-01-23
申请号：US15134181
申请日：2016-04-20
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.
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Patent Agency Ranking
公开(公告)号：US20150189197A1
公开(公告)日：2015-07-02
申请号：US14538772
申请日：2014-11-11
Applicant: Li Guo , Guangbin Zhang
Inventor： Li Guo , Guangbin Zhang
CPC classification number: H04N5/376 , G11C8/10 , H04N3/1512
Abstract: The present invention provides a compact row decoder with multiple voltage support. The row decoder may include a global driver and a plurality of row-level drivers. The global driver may include one or more voltage level shifters that are operable to provide multiple voltages required to drive each of the plurality of row-level drivers. The plurality of row-level drivers each may include only one voltage level shifter. In an example, the row-level driver includes an address decoder implemented in a digital domain providing an address selection signal, a voltage level shifter to convert the address selection signal to an analog domain, and a tow driver receiving driving signals from the global driver. The row driver has no voltage level shifter contained therein. Thus, the row-level drivers and the row decoder may be very compact. The present invention further provides a CMOS image sensor including the row decoder and a method of operating the CMOS image sensor.
Abstract translation: 本发明提供具有多个电压支持的紧凑行解码器。 行解码器可以包括全局驱动器和多个行级驱动器。 全局驱动器可以包括一个或多个电压电平移位器，其可操作以提供驱动多个行级驱动器中的每一个所需的多个电压。 多个行级驱动器各自可以仅包括一个电压电平移位器。 在一个示例中，行级驱动器包括实现在提供地址选择信号的数字域中的地址解码器，将地址选择信号转换为模拟域的电压电平移位器，以及从全局驱动器接收驱动信号的拖曳驱动器 。 行驱动器中没有电压电平转换器。 因此，行级驱动器和行解码器可以非常紧凑。 本发明还提供一种包括行解码器的CMOS图像传感器和操作CMOS图像传感器的方法。
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公开(公告)号：US12217433B2
公开(公告)日：2025-02-04
申请号：US17940891
申请日：2022-09-08
Applicant: CISTA SYSTEM CORP.
Inventor： Yang-Ting Chou , Zhaojian Li
IPC: 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.
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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
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
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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.
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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.
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