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    Image sensing system
    2.
    发明申请
    Image sensing system 有权

    公开(公告)号：US20210305294A1

    公开(公告)日：2021-09-30

    申请号：US16833681

    申请日：2020-03-30

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Jung-Chen Chung

    IPC: H01L27/146 ,  H04N5/345 ,  H01L27/148

    Abstract: An image sensing system includes a panel and an image sensing circuit. The panel includes a plurality of sensing pixels, a plurality of sensing lines and at least one first current source. Each of the plurality of sensing lines is coupled to a line of sensing pixels among the plurality of sensing pixels. Each of the at least one first current source is coupled to one of the plurality of sensing lines. The image sensing circuit, coupled to the panel, includes at least one second current source, each of which is coupled to one of the plurality of sensing lines. Wherein, a first sensing line among the plurality of sensing lines is coupled to a first current source among the at least one first current source and coupled to a second current source among the at least one second current source.

    Method of Switching Control Voltage of Photo Sensor Cell and Related Switching Circuit and Photo Sensor
    3.
    发明申请
    Method of Switching Control Voltage of Photo Sensor Cell and Related Switching Circuit and Photo Sensor 审中-公开

    公开(公告)号：US20200278246A1

    公开(公告)日：2020-09-03

    申请号：US16290948

    申请日：2019-03-03

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Jung-Chen Chung ,  Chi-Ting Chen

    IPC: G01J1/44 ,  H03K3/356

    Abstract: A method of switching a control voltage of a photo sensor cell for a photo sensor includes when the photo sensor cell is switched from a turned-off state to an turned-on state, sequentially switching the control voltage to at least one first voltage provided by at least one first voltage supply, and switching the control voltage to a first target voltage provided by a first charging pump circuit; and when the photo sensor cell is switched from the turned-on state to the turned-off state, sequentially switching the control voltage to at least one second voltage provided by at least one second voltage supply or a ground voltage, and switching the control voltage to a second target voltage provided by a second charging pump circuit.

    IMAGE SENSING DEVICE
    4.
    发明公开
    IMAGE SENSING DEVICE 审中-公开

    公开(公告)号：US20240276108A1

    公开(公告)日：2024-08-15

    申请号：US18167869

    申请日：2023-02-12

    Applicant: Novatek Microelectronics Corp.

    Inventor： Jung-Chen Chung

    IPC: H04N25/42 ,  H04N25/766 ,  H04N25/779 ,  H04N25/78

    CPC classification number: H04N25/42 ,  H04N25/766 ,  H04N25/779 ,  H04N25/78

    Abstract: An image sensing device for sensing an image sensing pixel array through a plurality of sensing lines is provided. The image sensing device includes a first switch, a second switch, a transistor, and a current source. A first terminal of the first switch is coupled to a first sensing line among the sensing lines. A first terminal of the second switch is coupled to a second sensing line among the sensing lines. A first terminal of the transistor is coupled to a second terminal of the first switch and a second terminal of the second switch. The current source is coupled to a second terminal of the transistor.

    Image sensing system
    5.
    发明授权
    Image sensing system 有权

    公开(公告)号：US11244974B2

    公开(公告)日：2022-02-08

    申请号：US16833681

    申请日：2020-03-30

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Jung-Chen Chung

    IPC: H01L27/146 ,  H01L27/148 ,  H04N5/345

    Abstract: An image sensing system includes a panel and an image sensing circuit. The panel includes a plurality of sensing pixels, a plurality of sensing lines and at least one first current source. Each of the plurality of sensing lines is coupled to a line of sensing pixels among the plurality of sensing pixels. Each of the at least one first current source is coupled to one of the plurality of sensing lines. The image sensing circuit, coupled to the panel, includes at least one second current source, each of which is coupled to one of the plurality of sensing lines. Wherein, a first sensing line among the plurality of sensing lines is coupled to a first current source among the at least one first current source and coupled to a second current source among the at least one second current source.

    OPTICAL SENSING DEVICE AND METHOD THEREOF
    6.
    发明申请
    OPTICAL SENSING DEVICE AND METHOD THEREOF 有权

    公开(公告)号：US20220021830A1

    公开(公告)日：2022-01-20

    申请号：US16933941

    申请日：2020-07-20

    Applicant: Novatek Microelectronics Corp.

    Inventor： Kuo Wei Cheng ,  Jen-Yi Lin ,  Jung-Chen Chung

    IPC: H04N5/369 ,  H04N5/378

    Abstract: An optical sensing device, including a first power rail, a second power rail, and a plurality of optical sensing elements arranged in an array, is provided. Each optical sensing element can include a photo diode, a reset switch, and a buffer. The reset switch can have a control terminal to receive a reset signal. A first terminal of the reset switch can be coupled to the first power rail and a second terminal of the reset switch is coupled to the photo diode. A first terminal of the buffer can be coupled to the second power rail, a second terminal of the buffer can be coupled to the second terminal of the reset switch and the photo diode, and a third terminal of the buffer is configured to provide a sensing signal. The second power rail is separate or independent from the first power rail.

    Method of switching control voltage of photo sensor cell and related switching circuit and photo sensor
    7.
    发明授权
    Method of switching control voltage of photo sensor cell and related switching circuit and photo sensor 有权

    公开(公告)号：US11112302B2

    公开(公告)日：2021-09-07

    申请号：US16290948

    申请日：2019-03-03

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Jung-Chen Chung ,  Chi-Ting Chen

    IPC: G01J1/44 ,  H03K3/356

    Abstract: A method of switching a control voltage of a photo sensor cell for a photo sensor includes when the photo sensor cell is switched from a turned-off state to an turned-on state, sequentially switching the control voltage to at least one first voltage provided by at least one first voltage supply, and switching the control voltage to a first target voltage provided by a first charging pump circuit; and when the photo sensor cell is switched from the turned-on state to the turned-off state, sequentially switching the control voltage to at least one second voltage provided by at least one second voltage supply or a ground voltage, and switching the control voltage to a second target voltage provided by a second charging pump circuit.

    FINGERPRINT AND PROXIMITY SENSING APPARATUS AND SENSING PROCESS THEREOF
    8.
    发明申请
    FINGERPRINT AND PROXIMITY SENSING APPARATUS AND SENSING PROCESS THEREOF 审中-公开

    公开(公告)号：US20200265206A1

    公开(公告)日：2020-08-20

    申请号：US16531126

    申请日：2019-08-05

    Applicant: Novatek Microelectronics Corp.

    Inventor： Jung-Chen Chung ,  Chi-Ting Chen

    IPC: G06K9/00 ,  G06F21/32

    Abstract: A fingerprint and proximity sensing apparatus for fingerprint recognizing and proximity sensing is provided. The fingerprint and proximity sensing apparatus includes a display panel, a fingerprint sensor, and at least one proximity sensing light emitting diode. The fingerprint sensor has an optical sensing array. The optical sensing array is configured to receive a first light emitted from the display panel and a second light emitted from the at least one proximity sensing light emitting diode at different time periods. The first light and the second light have different ranges of wave length. A sensing process is also provided.

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