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    ANALOG OPERATION CIRCUIT FOR OPERATING PULSE WIDTH SIGNALS OUTPUTTED FROM PIXEL CIRCUIT
    1.
    发明申请
    ANALOG OPERATION CIRCUIT FOR OPERATING PULSE WIDTH SIGNALS OUTPUTTED FROM PIXEL CIRCUIT 有权

    公开(公告)号：US20220174236A1

    公开(公告)日：2022-06-02

    申请号：US17672028

    申请日：2022-02-15

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHIH-HUAN WU ,  YI-HSIEN KO ,  HAN-CHI LIU

    IPC: H04N5/3745 ,  H01L27/146

    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.

    TIME DELAY INTEGRATION SENSOR WITH MULTIPLE SENSOR ARRAYS
    2.
    发明公开
    TIME DELAY INTEGRATION SENSOR WITH MULTIPLE SENSOR ARRAYS 审中-公开

    公开(公告)号：US20240089620A1

    公开(公告)日：2024-03-14

    申请号：US18517011

    申请日：2023-11-22

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHAO-CHI LEE

    IPC: H04N25/531 ,  H04N25/771 ,  H04N25/772

    CPC classification number: H04N25/531 ,  H04N25/771 ,  H04N25/772

    Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.

    PIXEL CIRCUIT SELECTING TO OUTPUT TIME DIFFERENCE DATA OR IMAGE DATA
    3.
    发明公开
    PIXEL CIRCUIT SELECTING TO OUTPUT TIME DIFFERENCE DATA OR IMAGE DATA 审中-公开

    公开(公告)号：US20230396896A1

    公开(公告)日：2023-12-07

    申请号：US18235370

    申请日：2023-08-18

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  YI-CHENG CHIU

    IPC: H04N25/767 ,  H01L27/146

    CPC classification number: H04N25/767 ,  H01L27/14612 ,  H01L27/14643

    Abstract: There is provided a pixel circuit capable of outputting time difference data or image data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected light energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected light energy of the second interval as the image data. The pixel circuit is used to output a pulse width signal corresponding to the time difference data or the image data in different operating modes.

    PIXEL CIRCUIT SELECTING TO OUTPUT TIME DIFFERENCE DATA OR IMAGE DATA
    4.
    发明申请
    PIXEL CIRCUIT SELECTING TO OUTPUT TIME DIFFERENCE DATA OR IMAGE DATA 有权

    公开(公告)号：US20250024172A1

    公开(公告)日：2025-01-16

    申请号：US18898062

    申请日：2024-09-26

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  YI-CHENG CHIU

    IPC: H04N25/767 ,  H01L27/146

    Abstract: There is provided a pixel circuit capable of outputting time difference data or image data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected light energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected light energy of the second interval as the image data. The pixel circuit is used to output a pulse width signal corresponding to the time difference data or the image data in different operating modes.

    ANALOG OPERATION CIRCUIT FOR PROCESSING PIXEL DATA IN ANALOG PHASE
    5.
    发明公开
    ANALOG OPERATION CIRCUIT FOR PROCESSING PIXEL DATA IN ANALOG PHASE 审中-公开

    公开(公告)号：US20240340553A1

    公开(公告)日：2024-10-10

    申请号：US18747498

    申请日：2024-06-19

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHIH-HUAN WU ,  YI-HSIEN KO ,  HAN-CHI LIU

    IPC: H04N25/772 ,  H01L27/146

    CPC classification number: H04N25/772 ,  H01L27/14643

    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first circuit, a second circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first circuit. Within a second interval, the photodiode detects second light energy to be stored in the second circuit. Within an operation interval, the first circuit outputs a first detection signal according to the first light energy and outputs a second detection signal according to the second light energy for being calculated by the operation circuit.

    PIXEL CIRCUIT OUTPUTTING PULSE WIDTH SIGNAL AND OPTICAL SENSOR USING THE SAME
    6.
    发明公开
    PIXEL CIRCUIT OUTPUTTING PULSE WIDTH SIGNAL AND OPTICAL SENSOR USING THE SAME 审中-公开

    公开(公告)号：US20230421924A1

    公开(公告)日：2023-12-28

    申请号：US18244296

    申请日：2023-09-11

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHIH-HUAN WU ,  YI-HSIEN KO ,  HAN-CHI LIU

    IPC: H04N25/772 ,  H01L27/146

    CPC classification number: H04N25/772 ,  H01L27/14643

    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.

    TIME DELAY INTEGRATION SENSOR WITH MULTIPLE SENSOR ARRAYS
    8.
    发明申请
    TIME DELAY INTEGRATION SENSOR WITH MULTIPLE SENSOR ARRAYS 有权

    公开(公告)号：US20220224848A1

    公开(公告)日：2022-07-14

    申请号：US17711079

    申请日：2022-04-01

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHAO-CHI LEE

    IPC: H04N5/353 ,  H04N5/3745

    Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.

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